* Firebase API for messaging

packages/firebase/README.md

@@ -0,0 +1,26 @@
+# Firebase support
+
+## Pascal API
+This directory contains the firebase messaging support files for Pas2JS.
+The src directory contains the firebaseapp unit which provides an interface
+for Firebase Cloud messaging APIs from Google.
+
+##  Support files
+The js directory contains the support files needed to make it work. 
+The Google API compatibility API is used, the version saved in the js
+directory is known to work.
+
+You must use these files in your main HTML file:
+```html
+  <script src="firebase-app-compat.js"></script>
+  <script src="firebase-messaging-compat.js"></script>
+```
+
+The firebase-messaging-sw.js file is a small service worker file that you can register
+with the following call :
+```javascript
+Window.Navigator.serviceWorker.register('firebase-messaging-sw.js')
+```
+
+A demo application can be found in FPC fcl-web/examples/fcm/webclient
+

packages/firebase/js/firebase-app.js

@@ -0,0 +1,2542 @@
+/**
+ * @license
+ * Copyright 2017 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+/**
+ * @license
+ * Copyright 2017 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+const stringToByteArray$1 = function (str) {
+    // TODO(user): Use native implementations if/when available
+    const out = [];
+    let p = 0;
+    for (let i = 0; i < str.length; i++) {
+        let c = str.charCodeAt(i);
+        if (c < 128) {
+            out[p++] = c;
+        }
+        else if (c < 2048) {
+            out[p++] = (c >> 6) | 192;
+            out[p++] = (c & 63) | 128;
+        }
+        else if ((c & 0xfc00) === 0xd800 &&
+            i + 1 < str.length &&
+            (str.charCodeAt(i + 1) & 0xfc00) === 0xdc00) {
+            // Surrogate Pair
+            c = 0x10000 + ((c & 0x03ff) << 10) + (str.charCodeAt(++i) & 0x03ff);
+            out[p++] = (c >> 18) | 240;
+            out[p++] = ((c >> 12) & 63) | 128;
+            out[p++] = ((c >> 6) & 63) | 128;
+            out[p++] = (c & 63) | 128;
+        }
+        else {
+            out[p++] = (c >> 12) | 224;
+            out[p++] = ((c >> 6) & 63) | 128;
+            out[p++] = (c & 63) | 128;
+        }
+    }
+    return out;
+};
+/**
+ * Turns an array of numbers into the string given by the concatenation of the
+ * characters to which the numbers correspond.
+ * @param bytes Array of numbers representing characters.
+ * @return Stringification of the array.
+ */
+const byteArrayToString = function (bytes) {
+    // TODO(user): Use native implementations if/when available
+    const out = [];
+    let pos = 0, c = 0;
+    while (pos < bytes.length) {
+        const c1 = bytes[pos++];
+        if (c1 < 128) {
+            out[c++] = String.fromCharCode(c1);
+        }
+        else if (c1 > 191 && c1 < 224) {
+            const c2 = bytes[pos++];
+            out[c++] = String.fromCharCode(((c1 & 31) << 6) | (c2 & 63));
+        }
+        else if (c1 > 239 && c1 < 365) {
+            // Surrogate Pair
+            const c2 = bytes[pos++];
+            const c3 = bytes[pos++];
+            const c4 = bytes[pos++];
+            const u = (((c1 & 7) << 18) | ((c2 & 63) << 12) | ((c3 & 63) << 6) | (c4 & 63)) -
+                0x10000;
+            out[c++] = String.fromCharCode(0xd800 + (u >> 10));
+            out[c++] = String.fromCharCode(0xdc00 + (u & 1023));
+        }
+        else {
+            const c2 = bytes[pos++];
+            const c3 = bytes[pos++];
+            out[c++] = String.fromCharCode(((c1 & 15) << 12) | ((c2 & 63) << 6) | (c3 & 63));
+        }
+    }
+    return out.join('');
+};
+// We define it as an object literal instead of a class because a class compiled down to es5 can't
+// be treeshaked. https://github.com/rollup/rollup/issues/1691
+// Static lookup maps, lazily populated by init_()
+const base64 = {
+    /**
+     * Maps bytes to characters.
+     */
+    byteToCharMap_: null,
+    /**
+     * Maps characters to bytes.
+     */
+    charToByteMap_: null,
+    /**
+     * Maps bytes to websafe characters.
+     * @private
+     */
+    byteToCharMapWebSafe_: null,
+    /**
+     * Maps websafe characters to bytes.
+     * @private
+     */
+    charToByteMapWebSafe_: null,
+    /**
+     * Our default alphabet, shared between
+     * ENCODED_VALS and ENCODED_VALS_WEBSAFE
+     */
+    ENCODED_VALS_BASE: 'ABCDEFGHIJKLMNOPQRSTUVWXYZ' + 'abcdefghijklmnopqrstuvwxyz' + '0123456789',
+    /**
+     * Our default alphabet. Value 64 (=) is special; it means "nothing."
+     */
+    get ENCODED_VALS() {
+        return this.ENCODED_VALS_BASE + '+/=';
+    },
+    /**
+     * Our websafe alphabet.
+     */
+    get ENCODED_VALS_WEBSAFE() {
+        return this.ENCODED_VALS_BASE + '-_.';
+    },
+    /**
+     * Whether this browser supports the atob and btoa functions. This extension
+     * started at Mozilla but is now implemented by many browsers. We use the
+     * ASSUME_* variables to avoid pulling in the full useragent detection library
+     * but still allowing the standard per-browser compilations.
+     *
+     */
+    HAS_NATIVE_SUPPORT: typeof atob === 'function',
+    /**
+     * Base64-encode an array of bytes.
+     *
+     * @param input An array of bytes (numbers with
+     *     value in [0, 255]) to encode.
+     * @param webSafe Boolean indicating we should use the
+     *     alternative alphabet.
+     * @return The base64 encoded string.
+     */
+    encodeByteArray(input, webSafe) {
+        if (!Array.isArray(input)) {
+            throw Error('encodeByteArray takes an array as a parameter');
+        }
+        this.init_();
+        const byteToCharMap = webSafe
+            ? this.byteToCharMapWebSafe_
+            : this.byteToCharMap_;
+        const output = [];
+        for (let i = 0; i < input.length; i += 3) {
+            const byte1 = input[i];
+            const haveByte2 = i + 1 < input.length;
+            const byte2 = haveByte2 ? input[i + 1] : 0;
+            const haveByte3 = i + 2 < input.length;
+            const byte3 = haveByte3 ? input[i + 2] : 0;
+            const outByte1 = byte1 >> 2;
+            const outByte2 = ((byte1 & 0x03) << 4) | (byte2 >> 4);
+            let outByte3 = ((byte2 & 0x0f) << 2) | (byte3 >> 6);
+            let outByte4 = byte3 & 0x3f;
+            if (!haveByte3) {
+                outByte4 = 64;
+                if (!haveByte2) {
+                    outByte3 = 64;
+                }
+            }
+            output.push(byteToCharMap[outByte1], byteToCharMap[outByte2], byteToCharMap[outByte3], byteToCharMap[outByte4]);
+        }
+        return output.join('');
+    },
+    /**
+     * Base64-encode a string.
+     *
+     * @param input A string to encode.
+     * @param webSafe If true, we should use the
+     *     alternative alphabet.
+     * @return The base64 encoded string.
+     */
+    encodeString(input, webSafe) {
+        // Shortcut for Mozilla browsers that implement
+        // a native base64 encoder in the form of "btoa/atob"
+        if (this.HAS_NATIVE_SUPPORT && !webSafe) {
+            return btoa(input);
+        }
+        return this.encodeByteArray(stringToByteArray$1(input), webSafe);
+    },
+    /**
+     * Base64-decode a string.
+     *
+     * @param input to decode.
+     * @param webSafe True if we should use the
+     *     alternative alphabet.
+     * @return string representing the decoded value.
+     */
+    decodeString(input, webSafe) {
+        // Shortcut for Mozilla browsers that implement
+        // a native base64 encoder in the form of "btoa/atob"
+        if (this.HAS_NATIVE_SUPPORT && !webSafe) {
+            return atob(input);
+        }
+        return byteArrayToString(this.decodeStringToByteArray(input, webSafe));
+    },
+    /**
+     * Base64-decode a string.
+     *
+     * In base-64 decoding, groups of four characters are converted into three
+     * bytes.  If the encoder did not apply padding, the input length may not
+     * be a multiple of 4.
+     *
+     * In this case, the last group will have fewer than 4 characters, and
+     * padding will be inferred.  If the group has one or two characters, it decodes
+     * to one byte.  If the group has three characters, it decodes to two bytes.
+     *
+     * @param input Input to decode.
+     * @param webSafe True if we should use the web-safe alphabet.
+     * @return bytes representing the decoded value.
+     */
+    decodeStringToByteArray(input, webSafe) {
+        this.init_();
+        const charToByteMap = webSafe
+            ? this.charToByteMapWebSafe_
+            : this.charToByteMap_;
+        const output = [];
+        for (let i = 0; i < input.length;) {
+            const byte1 = charToByteMap[input.charAt(i++)];
+            const haveByte2 = i < input.length;
+            const byte2 = haveByte2 ? charToByteMap[input.charAt(i)] : 0;
+            ++i;
+            const haveByte3 = i < input.length;
+            const byte3 = haveByte3 ? charToByteMap[input.charAt(i)] : 64;
+            ++i;
+            const haveByte4 = i < input.length;
+            const byte4 = haveByte4 ? charToByteMap[input.charAt(i)] : 64;
+            ++i;
+            if (byte1 == null || byte2 == null || byte3 == null || byte4 == null) {
+                throw new DecodeBase64StringError();
+            }
+            const outByte1 = (byte1 << 2) | (byte2 >> 4);
+            output.push(outByte1);
+            if (byte3 !== 64) {
+                const outByte2 = ((byte2 << 4) & 0xf0) | (byte3 >> 2);
+                output.push(outByte2);
+                if (byte4 !== 64) {
+                    const outByte3 = ((byte3 << 6) & 0xc0) | byte4;
+                    output.push(outByte3);
+                }
+            }
+        }
+        return output;
+    },
+    /**
+     * Lazy static initialization function. Called before
+     * accessing any of the static map variables.
+     * @private
+     */
+    init_() {
+        if (!this.byteToCharMap_) {
+            this.byteToCharMap_ = {};
+            this.charToByteMap_ = {};
+            this.byteToCharMapWebSafe_ = {};
+            this.charToByteMapWebSafe_ = {};
+            // We want quick mappings back and forth, so we precompute two maps.
+            for (let i = 0; i < this.ENCODED_VALS.length; i++) {
+                this.byteToCharMap_[i] = this.ENCODED_VALS.charAt(i);
+                this.charToByteMap_[this.byteToCharMap_[i]] = i;
+                this.byteToCharMapWebSafe_[i] = this.ENCODED_VALS_WEBSAFE.charAt(i);
+                this.charToByteMapWebSafe_[this.byteToCharMapWebSafe_[i]] = i;
+                // Be forgiving when decoding and correctly decode both encodings.
+                if (i >= this.ENCODED_VALS_BASE.length) {
+                    this.charToByteMap_[this.ENCODED_VALS_WEBSAFE.charAt(i)] = i;
+                    this.charToByteMapWebSafe_[this.ENCODED_VALS.charAt(i)] = i;
+                }
+            }
+        }
+    }
+};
+/**
+ * An error encountered while decoding base64 string.
+ */
+class DecodeBase64StringError extends Error {
+    constructor() {
+        super(...arguments);
+        this.name = 'DecodeBase64StringError';
+    }
+}
+/**
+ * URL-safe base64 encoding
+ */
+const base64Encode = function (str) {
+    const utf8Bytes = stringToByteArray$1(str);
+    return base64.encodeByteArray(utf8Bytes, true);
+};
+/**
+ * URL-safe base64 encoding (without "." padding in the end).
+ * e.g. Used in JSON Web Token (JWT) parts.
+ */
+const base64urlEncodeWithoutPadding = function (str) {
+    // Use base64url encoding and remove padding in the end (dot characters).
+    return base64Encode(str).replace(/\./g, '');
+};
+/**
+ * URL-safe base64 decoding
+ *
+ * NOTE: DO NOT use the global atob() function - it does NOT support the
+ * base64Url variant encoding.
+ *
+ * @param str To be decoded
+ * @return Decoded result, if possible
+ */
+const base64Decode = function (str) {
+    try {
+        return base64.decodeString(str, true);
+    }
+    catch (e) {
+        console.error('base64Decode failed: ', e);
+    }
+    return null;
+};
+
+/**
+ * @license
+ * Copyright 2022 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+/**
+ * Polyfill for `globalThis` object.
+ * @returns the `globalThis` object for the given environment.
+ * @public
+ */
+function getGlobal() {
+    if (typeof self !== 'undefined') {
+        return self;
+    }
+    if (typeof window !== 'undefined') {
+        return window;
+    }
+    if (typeof global !== 'undefined') {
+        return global;
+    }
+    throw new Error('Unable to locate global object.');
+}
+
+/**
+ * @license
+ * Copyright 2022 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+const getDefaultsFromGlobal = () => getGlobal().__FIREBASE_DEFAULTS__;
+/**
+ * Attempt to read defaults from a JSON string provided to
+ * process(.)env(.)__FIREBASE_DEFAULTS__ or a JSON file whose path is in
+ * process(.)env(.)__FIREBASE_DEFAULTS_PATH__
+ * The dots are in parens because certain compilers (Vite?) cannot
+ * handle seeing that variable in comments.
+ * See https://github.com/firebase/firebase-js-sdk/issues/6838
+ */
+const getDefaultsFromEnvVariable = () => {
+    if (typeof process === 'undefined' || typeof process.env === 'undefined') {
+        return;
+    }
+    const defaultsJsonString = process.env.__FIREBASE_DEFAULTS__;
+    if (defaultsJsonString) {
+        return JSON.parse(defaultsJsonString);
+    }
+};
+const getDefaultsFromCookie = () => {
+    if (typeof document === 'undefined') {
+        return;
+    }
+    let match;
+    try {
+        match = document.cookie.match(/__FIREBASE_DEFAULTS__=([^;]+)/);
+    }
+    catch (e) {
+        // Some environments such as Angular Universal SSR have a
+        // `document` object but error on accessing `document.cookie`.
+        return;
+    }
+    const decoded = match && base64Decode(match[1]);
+    return decoded && JSON.parse(decoded);
+};
+/**
+ * Get the __FIREBASE_DEFAULTS__ object. It checks in order:
+ * (1) if such an object exists as a property of `globalThis`
+ * (2) if such an object was provided on a shell environment variable
+ * (3) if such an object exists in a cookie
+ * @public
+ */
+const getDefaults = () => {
+    try {
+        return (getDefaultsFromGlobal() ||
+            getDefaultsFromEnvVariable() ||
+            getDefaultsFromCookie());
+    }
+    catch (e) {
+        /**
+         * Catch-all for being unable to get __FIREBASE_DEFAULTS__ due
+         * to any environment case we have not accounted for. Log to
+         * info instead of swallowing so we can find these unknown cases
+         * and add paths for them if needed.
+         */
+        console.info(`Unable to get __FIREBASE_DEFAULTS__ due to: ${e}`);
+        return;
+    }
+};
+/**
+ * Returns Firebase app config stored in the __FIREBASE_DEFAULTS__ object.
+ * @public
+ */
+const getDefaultAppConfig = () => { var _a; return (_a = getDefaults()) === null || _a === void 0 ? void 0 : _a.config; };
+
+/**
+ * @license
+ * Copyright 2017 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+class Deferred {
+    constructor() {
+        this.reject = () => { };
+        this.resolve = () => { };
+        this.promise = new Promise((resolve, reject) => {
+            this.resolve = resolve;
+            this.reject = reject;
+        });
+    }
+    /**
+     * Our API internals are not promiseified and cannot because our callback APIs have subtle expectations around
+     * invoking promises inline, which Promises are forbidden to do. This method accepts an optional node-style callback
+     * and returns a node-style callback which will resolve or reject the Deferred's promise.
+     */
+    wrapCallback(callback) {
+        return (error, value) => {
+            if (error) {
+                this.reject(error);
+            }
+            else {
+                this.resolve(value);
+            }
+            if (typeof callback === 'function') {
+                // Attaching noop handler just in case developer wasn't expecting
+                // promises
+                this.promise.catch(() => { });
+                // Some of our callbacks don't expect a value and our own tests
+                // assert that the parameter length is 1
+                if (callback.length === 1) {
+                    callback(error);
+                }
+                else {
+                    callback(error, value);
+                }
+            }
+        };
+    }
+}
+/**
+ * This method checks if indexedDB is supported by current browser/service worker context
+ * @return true if indexedDB is supported by current browser/service worker context
+ */
+function isIndexedDBAvailable() {
+    try {
+        return typeof indexedDB === 'object';
+    }
+    catch (e) {
+        return false;
+    }
+}
+/**
+ * This method validates browser/sw context for indexedDB by opening a dummy indexedDB database and reject
+ * if errors occur during the database open operation.
+ *
+ * @throws exception if current browser/sw context can't run idb.open (ex: Safari iframe, Firefox
+ * private browsing)
+ */
+function validateIndexedDBOpenable() {
+    return new Promise((resolve, reject) => {
+        try {
+            let preExist = true;
+            const DB_CHECK_NAME = 'validate-browser-context-for-indexeddb-analytics-module';
+            const request = self.indexedDB.open(DB_CHECK_NAME);
+            request.onsuccess = () => {
+                request.result.close();
+                // delete database only when it doesn't pre-exist
+                if (!preExist) {
+                    self.indexedDB.deleteDatabase(DB_CHECK_NAME);
+                }
+                resolve(true);
+            };
+            request.onupgradeneeded = () => {
+                preExist = false;
+            };
+            request.onerror = () => {
+                var _a;
+                reject(((_a = request.error) === null || _a === void 0 ? void 0 : _a.message) || '');
+            };
+        }
+        catch (error) {
+            reject(error);
+        }
+    });
+}
+
+/**
+ * @license
+ * Copyright 2017 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+/**
+ * @fileoverview Standardized Firebase Error.
+ *
+ * Usage:
+ *
+ *   // Typescript string literals for type-safe codes
+ *   type Err =
+ *     'unknown' |
+ *     'object-not-found'
+ *     ;
+ *
+ *   // Closure enum for type-safe error codes
+ *   // at-enum {string}
+ *   var Err = {
+ *     UNKNOWN: 'unknown',
+ *     OBJECT_NOT_FOUND: 'object-not-found',
+ *   }
+ *
+ *   let errors: Map<Err, string> = {
+ *     'generic-error': "Unknown error",
+ *     'file-not-found': "Could not find file: {$file}",
+ *   };
+ *
+ *   // Type-safe function - must pass a valid error code as param.
+ *   let error = new ErrorFactory<Err>('service', 'Service', errors);
+ *
+ *   ...
+ *   throw error.create(Err.GENERIC);
+ *   ...
+ *   throw error.create(Err.FILE_NOT_FOUND, {'file': fileName});
+ *   ...
+ *   // Service: Could not file file: foo.txt (service/file-not-found).
+ *
+ *   catch (e) {
+ *     assert(e.message === "Could not find file: foo.txt.");
+ *     if ((e as FirebaseError)?.code === 'service/file-not-found') {
+ *       console.log("Could not read file: " + e['file']);
+ *     }
+ *   }
+ */
+const ERROR_NAME = 'FirebaseError';
+// Based on code from:
+// https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Error#Custom_Error_Types
+class FirebaseError extends Error {
+    constructor(
+    /** The error code for this error. */
+    code, message, 
+    /** Custom data for this error. */
+    customData) {
+        super(message);
+        this.code = code;
+        this.customData = customData;
+        /** The custom name for all FirebaseErrors. */
+        this.name = ERROR_NAME;
+        // Fix For ES5
+        // https://github.com/Microsoft/TypeScript-wiki/blob/master/Breaking-Changes.md#extending-built-ins-like-error-array-and-map-may-no-longer-work
+        Object.setPrototypeOf(this, FirebaseError.prototype);
+        // Maintains proper stack trace for where our error was thrown.
+        // Only available on V8.
+        if (Error.captureStackTrace) {
+            Error.captureStackTrace(this, ErrorFactory.prototype.create);
+        }
+    }
+}
+class ErrorFactory {
+    constructor(service, serviceName, errors) {
+        this.service = service;
+        this.serviceName = serviceName;
+        this.errors = errors;
+    }
+    create(code, ...data) {
+        const customData = data[0] || {};
+        const fullCode = `${this.service}/${code}`;
+        const template = this.errors[code];
+        const message = template ? replaceTemplate(template, customData) : 'Error';
+        // Service Name: Error message (service/code).
+        const fullMessage = `${this.serviceName}: ${message} (${fullCode}).`;
+        const error = new FirebaseError(fullCode, fullMessage, customData);
+        return error;
+    }
+}
+function replaceTemplate(template, data) {
+    return template.replace(PATTERN, (_, key) => {
+        const value = data[key];
+        return value != null ? String(value) : `<${key}?>`;
+    });
+}
+const PATTERN = /\{\$([^}]+)}/g;
+/**
+ * Deep equal two objects. Support Arrays and Objects.
+ */
+function deepEqual(a, b) {
+    if (a === b) {
+        return true;
+    }
+    const aKeys = Object.keys(a);
+    const bKeys = Object.keys(b);
+    for (const k of aKeys) {
+        if (!bKeys.includes(k)) {
+            return false;
+        }
+        const aProp = a[k];
+        const bProp = b[k];
+        if (isObject(aProp) && isObject(bProp)) {
+            if (!deepEqual(aProp, bProp)) {
+                return false;
+            }
+        }
+        else if (aProp !== bProp) {
+            return false;
+        }
+    }
+    for (const k of bKeys) {
+        if (!aKeys.includes(k)) {
+            return false;
+        }
+    }
+    return true;
+}
+function isObject(thing) {
+    return thing !== null && typeof thing === 'object';
+}
+
+/**
+ * Component for service name T, e.g. `auth`, `auth-internal`
+ */
+class Component {
+    /**
+     *
+     * @param name The public service name, e.g. app, auth, firestore, database
+     * @param instanceFactory Service factory responsible for creating the public interface
+     * @param type whether the service provided by the component is public or private
+     */
+    constructor(name, instanceFactory, type) {
+        this.name = name;
+        this.instanceFactory = instanceFactory;
+        this.type = type;
+        this.multipleInstances = false;
+        /**
+         * Properties to be added to the service namespace
+         */
+        this.serviceProps = {};
+        this.instantiationMode = "LAZY" /* InstantiationMode.LAZY */;
+        this.onInstanceCreated = null;
+    }
+    setInstantiationMode(mode) {
+        this.instantiationMode = mode;
+        return this;
+    }
+    setMultipleInstances(multipleInstances) {
+        this.multipleInstances = multipleInstances;
+        return this;
+    }
+    setServiceProps(props) {
+        this.serviceProps = props;
+        return this;
+    }
+    setInstanceCreatedCallback(callback) {
+        this.onInstanceCreated = callback;
+        return this;
+    }
+}
+
+/**
+ * @license
+ * Copyright 2019 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+const DEFAULT_ENTRY_NAME$1 = '[DEFAULT]';
+
+/**
+ * @license
+ * Copyright 2019 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+/**
+ * Provider for instance for service name T, e.g. 'auth', 'auth-internal'
+ * NameServiceMapping[T] is an alias for the type of the instance
+ */
+class Provider {
+    constructor(name, container) {
+        this.name = name;
+        this.container = container;
+        this.component = null;
+        this.instances = new Map();
+        this.instancesDeferred = new Map();
+        this.instancesOptions = new Map();
+        this.onInitCallbacks = new Map();
+    }
+    /**
+     * @param identifier A provider can provide mulitple instances of a service
+     * if this.component.multipleInstances is true.
+     */
+    get(identifier) {
+        // if multipleInstances is not supported, use the default name
+        const normalizedIdentifier = this.normalizeInstanceIdentifier(identifier);
+        if (!this.instancesDeferred.has(normalizedIdentifier)) {
+            const deferred = new Deferred();
+            this.instancesDeferred.set(normalizedIdentifier, deferred);
+            if (this.isInitialized(normalizedIdentifier) ||
+                this.shouldAutoInitialize()) {
+                // initialize the service if it can be auto-initialized
+                try {
+                    const instance = this.getOrInitializeService({
+                        instanceIdentifier: normalizedIdentifier
+                    });
+                    if (instance) {
+                        deferred.resolve(instance);
+                    }
+                }
+                catch (e) {
+                    // when the instance factory throws an exception during get(), it should not cause
+                    // a fatal error. We just return the unresolved promise in this case.
+                }
+            }
+        }
+        return this.instancesDeferred.get(normalizedIdentifier).promise;
+    }
+    getImmediate(options) {
+        var _a;
+        // if multipleInstances is not supported, use the default name
+        const normalizedIdentifier = this.normalizeInstanceIdentifier(options === null || options === void 0 ? void 0 : options.identifier);
+        const optional = (_a = options === null || options === void 0 ? void 0 : options.optional) !== null && _a !== void 0 ? _a : false;
+        if (this.isInitialized(normalizedIdentifier) ||
+            this.shouldAutoInitialize()) {
+            try {
+                return this.getOrInitializeService({
+                    instanceIdentifier: normalizedIdentifier
+                });
+            }
+            catch (e) {
+                if (optional) {
+                    return null;
+                }
+                else {
+                    throw e;
+                }
+            }
+        }
+        else {
+            // In case a component is not initialized and should/can not be auto-initialized at the moment, return null if the optional flag is set, or throw
+            if (optional) {
+                return null;
+            }
+            else {
+                throw Error(`Service ${this.name} is not available`);
+            }
+        }
+    }
+    getComponent() {
+        return this.component;
+    }
+    setComponent(component) {
+        if (component.name !== this.name) {
+            throw Error(`Mismatching Component ${component.name} for Provider ${this.name}.`);
+        }
+        if (this.component) {
+            throw Error(`Component for ${this.name} has already been provided`);
+        }
+        this.component = component;
+        // return early without attempting to initialize the component if the component requires explicit initialization (calling `Provider.initialize()`)
+        if (!this.shouldAutoInitialize()) {
+            return;
+        }
+        // if the service is eager, initialize the default instance
+        if (isComponentEager(component)) {
+            try {
+                this.getOrInitializeService({ instanceIdentifier: DEFAULT_ENTRY_NAME$1 });
+            }
+            catch (e) {
+                // when the instance factory for an eager Component throws an exception during the eager
+                // initialization, it should not cause a fatal error.
+                // TODO: Investigate if we need to make it configurable, because some component may want to cause
+                // a fatal error in this case?
+            }
+        }
+        // Create service instances for the pending promises and resolve them
+        // NOTE: if this.multipleInstances is false, only the default instance will be created
+        // and all promises with resolve with it regardless of the identifier.
+        for (const [instanceIdentifier, instanceDeferred] of this.instancesDeferred.entries()) {
+            const normalizedIdentifier = this.normalizeInstanceIdentifier(instanceIdentifier);
+            try {
+                // `getOrInitializeService()` should always return a valid instance since a component is guaranteed. use ! to make typescript happy.
+                const instance = this.getOrInitializeService({
+                    instanceIdentifier: normalizedIdentifier
+                });
+                instanceDeferred.resolve(instance);
+            }
+            catch (e) {
+                // when the instance factory throws an exception, it should not cause
+                // a fatal error. We just leave the promise unresolved.
+            }
+        }
+    }
+    clearInstance(identifier = DEFAULT_ENTRY_NAME$1) {
+        this.instancesDeferred.delete(identifier);
+        this.instancesOptions.delete(identifier);
+        this.instances.delete(identifier);
+    }
+    // app.delete() will call this method on every provider to delete the services
+    // TODO: should we mark the provider as deleted?
+    async delete() {
+        const services = Array.from(this.instances.values());
+        await Promise.all([
+            ...services
+                .filter(service => 'INTERNAL' in service) // legacy services
+                // eslint-disable-next-line @typescript-eslint/no-explicit-any
+                .map(service => service.INTERNAL.delete()),
+            ...services
+                .filter(service => '_delete' in service) // modularized services
+                // eslint-disable-next-line @typescript-eslint/no-explicit-any
+                .map(service => service._delete())
+        ]);
+    }
+    isComponentSet() {
+        return this.component != null;
+    }
+    isInitialized(identifier = DEFAULT_ENTRY_NAME$1) {
+        return this.instances.has(identifier);
+    }
+    getOptions(identifier = DEFAULT_ENTRY_NAME$1) {
+        return this.instancesOptions.get(identifier) || {};
+    }
+    initialize(opts = {}) {
+        const { options = {} } = opts;
+        const normalizedIdentifier = this.normalizeInstanceIdentifier(opts.instanceIdentifier);
+        if (this.isInitialized(normalizedIdentifier)) {
+            throw Error(`${this.name}(${normalizedIdentifier}) has already been initialized`);
+        }
+        if (!this.isComponentSet()) {
+            throw Error(`Component ${this.name} has not been registered yet`);
+        }
+        const instance = this.getOrInitializeService({
+            instanceIdentifier: normalizedIdentifier,
+            options
+        });
+        // resolve any pending promise waiting for the service instance
+        for (const [instanceIdentifier, instanceDeferred] of this.instancesDeferred.entries()) {
+            const normalizedDeferredIdentifier = this.normalizeInstanceIdentifier(instanceIdentifier);
+            if (normalizedIdentifier === normalizedDeferredIdentifier) {
+                instanceDeferred.resolve(instance);
+            }
+        }
+        return instance;
+    }
+    /**
+     *
+     * @param callback - a function that will be invoked  after the provider has been initialized by calling provider.initialize().
+     * The function is invoked SYNCHRONOUSLY, so it should not execute any longrunning tasks in order to not block the program.
+     *
+     * @param identifier An optional instance identifier
+     * @returns a function to unregister the callback
+     */
+    onInit(callback, identifier) {
+        var _a;
+        const normalizedIdentifier = this.normalizeInstanceIdentifier(identifier);
+        const existingCallbacks = (_a = this.onInitCallbacks.get(normalizedIdentifier)) !== null && _a !== void 0 ? _a : new Set();
+        existingCallbacks.add(callback);
+        this.onInitCallbacks.set(normalizedIdentifier, existingCallbacks);
+        const existingInstance = this.instances.get(normalizedIdentifier);
+        if (existingInstance) {
+            callback(existingInstance, normalizedIdentifier);
+        }
+        return () => {
+            existingCallbacks.delete(callback);
+        };
+    }
+    /**
+     * Invoke onInit callbacks synchronously
+     * @param instance the service instance`
+     */
+    invokeOnInitCallbacks(instance, identifier) {
+        const callbacks = this.onInitCallbacks.get(identifier);
+        if (!callbacks) {
+            return;
+        }
+        for (const callback of callbacks) {
+            try {
+                callback(instance, identifier);
+            }
+            catch (_a) {
+                // ignore errors in the onInit callback
+            }
+        }
+    }
+    getOrInitializeService({ instanceIdentifier, options = {} }) {
+        let instance = this.instances.get(instanceIdentifier);
+        if (!instance && this.component) {
+            instance = this.component.instanceFactory(this.container, {
+                instanceIdentifier: normalizeIdentifierForFactory(instanceIdentifier),
+                options
+            });
+            this.instances.set(instanceIdentifier, instance);
+            this.instancesOptions.set(instanceIdentifier, options);
+            /**
+             * Invoke onInit listeners.
+             * Note this.component.onInstanceCreated is different, which is used by the component creator,
+             * while onInit listeners are registered by consumers of the provider.
+             */
+            this.invokeOnInitCallbacks(instance, instanceIdentifier);
+            /**
+             * Order is important
+             * onInstanceCreated() should be called after this.instances.set(instanceIdentifier, instance); which
+             * makes `isInitialized()` return true.
+             */
+            if (this.component.onInstanceCreated) {
+                try {
+                    this.component.onInstanceCreated(this.container, instanceIdentifier, instance);
+                }
+                catch (_a) {
+                    // ignore errors in the onInstanceCreatedCallback
+                }
+            }
+        }
+        return instance || null;
+    }
+    normalizeInstanceIdentifier(identifier = DEFAULT_ENTRY_NAME$1) {
+        if (this.component) {
+            return this.component.multipleInstances ? identifier : DEFAULT_ENTRY_NAME$1;
+        }
+        else {
+            return identifier; // assume multiple instances are supported before the component is provided.
+        }
+    }
+    shouldAutoInitialize() {
+        return (!!this.component &&
+            this.component.instantiationMode !== "EXPLICIT" /* InstantiationMode.EXPLICIT */);
+    }
+}
+// undefined should be passed to the service factory for the default instance
+function normalizeIdentifierForFactory(identifier) {
+    return identifier === DEFAULT_ENTRY_NAME$1 ? undefined : identifier;
+}
+function isComponentEager(component) {
+    return component.instantiationMode === "EAGER" /* InstantiationMode.EAGER */;
+}
+
+/**
+ * @license
+ * Copyright 2019 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+/**
+ * ComponentContainer that provides Providers for service name T, e.g. `auth`, `auth-internal`
+ */
+class ComponentContainer {
+    constructor(name) {
+        this.name = name;
+        this.providers = new Map();
+    }
+    /**
+     *
+     * @param component Component being added
+     * @param overwrite When a component with the same name has already been registered,
+     * if overwrite is true: overwrite the existing component with the new component and create a new
+     * provider with the new component. It can be useful in tests where you want to use different mocks
+     * for different tests.
+     * if overwrite is false: throw an exception
+     */
+    addComponent(component) {
+        const provider = this.getProvider(component.name);
+        if (provider.isComponentSet()) {
+            throw new Error(`Component ${component.name} has already been registered with ${this.name}`);
+        }
+        provider.setComponent(component);
+    }
+    addOrOverwriteComponent(component) {
+        const provider = this.getProvider(component.name);
+        if (provider.isComponentSet()) {
+            // delete the existing provider from the container, so we can register the new component
+            this.providers.delete(component.name);
+        }
+        this.addComponent(component);
+    }
+    /**
+     * getProvider provides a type safe interface where it can only be called with a field name
+     * present in NameServiceMapping interface.
+     *
+     * Firebase SDKs providing services should extend NameServiceMapping interface to register
+     * themselves.
+     */
+    getProvider(name) {
+        if (this.providers.has(name)) {
+            return this.providers.get(name);
+        }
+        // create a Provider for a service that hasn't registered with Firebase
+        const provider = new Provider(name, this);
+        this.providers.set(name, provider);
+        return provider;
+    }
+    getProviders() {
+        return Array.from(this.providers.values());
+    }
+}
+
+/**
+ * @license
+ * Copyright 2017 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+/**
+ * A container for all of the Logger instances
+ */
+const instances = [];
+/**
+ * The JS SDK supports 5 log levels and also allows a user the ability to
+ * silence the logs altogether.
+ *
+ * The order is a follows:
+ * DEBUG < VERBOSE < INFO < WARN < ERROR
+ *
+ * All of the log types above the current log level will be captured (i.e. if
+ * you set the log level to `INFO`, errors will still be logged, but `DEBUG` and
+ * `VERBOSE` logs will not)
+ */
+var LogLevel;
+(function (LogLevel) {
+    LogLevel[LogLevel["DEBUG"] = 0] = "DEBUG";
+    LogLevel[LogLevel["VERBOSE"] = 1] = "VERBOSE";
+    LogLevel[LogLevel["INFO"] = 2] = "INFO";
+    LogLevel[LogLevel["WARN"] = 3] = "WARN";
+    LogLevel[LogLevel["ERROR"] = 4] = "ERROR";
+    LogLevel[LogLevel["SILENT"] = 5] = "SILENT";
+})(LogLevel || (LogLevel = {}));
+const levelStringToEnum = {
+    'debug': LogLevel.DEBUG,
+    'verbose': LogLevel.VERBOSE,
+    'info': LogLevel.INFO,
+    'warn': LogLevel.WARN,
+    'error': LogLevel.ERROR,
+    'silent': LogLevel.SILENT
+};
+/**
+ * The default log level
+ */
+const defaultLogLevel = LogLevel.INFO;
+/**
+ * By default, `console.debug` is not displayed in the developer console (in
+ * chrome). To avoid forcing users to have to opt-in to these logs twice
+ * (i.e. once for firebase, and once in the console), we are sending `DEBUG`
+ * logs to the `console.log` function.
+ */
+const ConsoleMethod = {
+    [LogLevel.DEBUG]: 'log',
+    [LogLevel.VERBOSE]: 'log',
+    [LogLevel.INFO]: 'info',
+    [LogLevel.WARN]: 'warn',
+    [LogLevel.ERROR]: 'error'
+};
+/**
+ * The default log handler will forward DEBUG, VERBOSE, INFO, WARN, and ERROR
+ * messages on to their corresponding console counterparts (if the log method
+ * is supported by the current log level)
+ */
+const defaultLogHandler = (instance, logType, ...args) => {
+    if (logType < instance.logLevel) {
+        return;
+    }
+    const now = new Date().toISOString();
+    const method = ConsoleMethod[logType];
+    if (method) {
+        console[method](`[${now}]  ${instance.name}:`, ...args);
+    }
+    else {
+        throw new Error(`Attempted to log a message with an invalid logType (value: ${logType})`);
+    }
+};
+class Logger {
+    /**
+     * Gives you an instance of a Logger to capture messages according to
+     * Firebase's logging scheme.
+     *
+     * @param name The name that the logs will be associated with
+     */
+    constructor(name) {
+        this.name = name;
+        /**
+         * The log level of the given Logger instance.
+         */
+        this._logLevel = defaultLogLevel;
+        /**
+         * The main (internal) log handler for the Logger instance.
+         * Can be set to a new function in internal package code but not by user.
+         */
+        this._logHandler = defaultLogHandler;
+        /**
+         * The optional, additional, user-defined log handler for the Logger instance.
+         */
+        this._userLogHandler = null;
+        /**
+         * Capture the current instance for later use
+         */
+        instances.push(this);
+    }
+    get logLevel() {
+        return this._logLevel;
+    }
+    set logLevel(val) {
+        if (!(val in LogLevel)) {
+            throw new TypeError(`Invalid value "${val}" assigned to \`logLevel\``);
+        }
+        this._logLevel = val;
+    }
+    // Workaround for setter/getter having to be the same type.
+    setLogLevel(val) {
+        this._logLevel = typeof val === 'string' ? levelStringToEnum[val] : val;
+    }
+    get logHandler() {
+        return this._logHandler;
+    }
+    set logHandler(val) {
+        if (typeof val !== 'function') {
+            throw new TypeError('Value assigned to `logHandler` must be a function');
+        }
+        this._logHandler = val;
+    }
+    get userLogHandler() {
+        return this._userLogHandler;
+    }
+    set userLogHandler(val) {
+        this._userLogHandler = val;
+    }
+    /**
+     * The functions below are all based on the `console` interface
+     */
+    debug(...args) {
+        this._userLogHandler && this._userLogHandler(this, LogLevel.DEBUG, ...args);
+        this._logHandler(this, LogLevel.DEBUG, ...args);
+    }
+    log(...args) {
+        this._userLogHandler &&
+            this._userLogHandler(this, LogLevel.VERBOSE, ...args);
+        this._logHandler(this, LogLevel.VERBOSE, ...args);
+    }
+    info(...args) {
+        this._userLogHandler && this._userLogHandler(this, LogLevel.INFO, ...args);
+        this._logHandler(this, LogLevel.INFO, ...args);
+    }
+    warn(...args) {
+        this._userLogHandler && this._userLogHandler(this, LogLevel.WARN, ...args);
+        this._logHandler(this, LogLevel.WARN, ...args);
+    }
+    error(...args) {
+        this._userLogHandler && this._userLogHandler(this, LogLevel.ERROR, ...args);
+        this._logHandler(this, LogLevel.ERROR, ...args);
+    }
+}
+function setLogLevel$1(level) {
+    instances.forEach(inst => {
+        inst.setLogLevel(level);
+    });
+}
+function setUserLogHandler(logCallback, options) {
+    for (const instance of instances) {
+        let customLogLevel = null;
+        if (options && options.level) {
+            customLogLevel = levelStringToEnum[options.level];
+        }
+        if (logCallback === null) {
+            instance.userLogHandler = null;
+        }
+        else {
+            instance.userLogHandler = (instance, level, ...args) => {
+                const message = args
+                    .map(arg => {
+                    if (arg == null) {
+                        return null;
+                    }
+                    else if (typeof arg === 'string') {
+                        return arg;
+                    }
+                    else if (typeof arg === 'number' || typeof arg === 'boolean') {
+                        return arg.toString();
+                    }
+                    else if (arg instanceof Error) {
+                        return arg.message;
+                    }
+                    else {
+                        try {
+                            return JSON.stringify(arg);
+                        }
+                        catch (ignored) {
+                            return null;
+                        }
+                    }
+                })
+                    .filter(arg => arg)
+                    .join(' ');
+                if (level >= (customLogLevel !== null && customLogLevel !== void 0 ? customLogLevel : instance.logLevel)) {
+                    logCallback({
+                        level: LogLevel[level].toLowerCase(),
+                        message,
+                        args,
+                        type: instance.name
+                    });
+                }
+            };
+        }
+    }
+}
+
+const instanceOfAny = (object, constructors) => constructors.some((c) => object instanceof c);
+
+let idbProxyableTypes;
+let cursorAdvanceMethods;
+// This is a function to prevent it throwing up in node environments.
+function getIdbProxyableTypes() {
+    return (idbProxyableTypes ||
+        (idbProxyableTypes = [
+            IDBDatabase,
+            IDBObjectStore,
+            IDBIndex,
+            IDBCursor,
+            IDBTransaction,
+        ]));
+}
+// This is a function to prevent it throwing up in node environments.
+function getCursorAdvanceMethods() {
+    return (cursorAdvanceMethods ||
+        (cursorAdvanceMethods = [
+            IDBCursor.prototype.advance,
+            IDBCursor.prototype.continue,
+            IDBCursor.prototype.continuePrimaryKey,
+        ]));
+}
+const cursorRequestMap = new WeakMap();
+const transactionDoneMap = new WeakMap();
+const transactionStoreNamesMap = new WeakMap();
+const transformCache = new WeakMap();
+const reverseTransformCache = new WeakMap();
+function promisifyRequest(request) {
+    const promise = new Promise((resolve, reject) => {
+        const unlisten = () => {
+            request.removeEventListener('success', success);
+            request.removeEventListener('error', error);
+        };
+        const success = () => {
+            resolve(wrap(request.result));
+            unlisten();
+        };
+        const error = () => {
+            reject(request.error);
+            unlisten();
+        };
+        request.addEventListener('success', success);
+        request.addEventListener('error', error);
+    });
+    promise
+        .then((value) => {
+        // Since cursoring reuses the IDBRequest (*sigh*), we cache it for later retrieval
+        // (see wrapFunction).
+        if (value instanceof IDBCursor) {
+            cursorRequestMap.set(value, request);
+        }
+        // Catching to avoid "Uncaught Promise exceptions"
+    })
+        .catch(() => { });
+    // This mapping exists in reverseTransformCache but doesn't doesn't exist in transformCache. This
+    // is because we create many promises from a single IDBRequest.
+    reverseTransformCache.set(promise, request);
+    return promise;
+}
+function cacheDonePromiseForTransaction(tx) {
+    // Early bail if we've already created a done promise for this transaction.
+    if (transactionDoneMap.has(tx))
+        return;
+    const done = new Promise((resolve, reject) => {
+        const unlisten = () => {
+            tx.removeEventListener('complete', complete);
+            tx.removeEventListener('error', error);
+            tx.removeEventListener('abort', error);
+        };
+        const complete = () => {
+            resolve();
+            unlisten();
+        };
+        const error = () => {
+            reject(tx.error || new DOMException('AbortError', 'AbortError'));
+            unlisten();
+        };
+        tx.addEventListener('complete', complete);
+        tx.addEventListener('error', error);
+        tx.addEventListener('abort', error);
+    });
+    // Cache it for later retrieval.
+    transactionDoneMap.set(tx, done);
+}
+let idbProxyTraps = {
+    get(target, prop, receiver) {
+        if (target instanceof IDBTransaction) {
+            // Special handling for transaction.done.
+            if (prop === 'done')
+                return transactionDoneMap.get(target);
+            // Polyfill for objectStoreNames because of Edge.
+            if (prop === 'objectStoreNames') {
+                return target.objectStoreNames || transactionStoreNamesMap.get(target);
+            }
+            // Make tx.store return the only store in the transaction, or undefined if there are many.
+            if (prop === 'store') {
+                return receiver.objectStoreNames[1]
+                    ? undefined
+                    : receiver.objectStore(receiver.objectStoreNames[0]);
+            }
+        }
+        // Else transform whatever we get back.
+        return wrap(target[prop]);
+    },
+    set(target, prop, value) {
+        target[prop] = value;
+        return true;
+    },
+    has(target, prop) {
+        if (target instanceof IDBTransaction &&
+            (prop === 'done' || prop === 'store')) {
+            return true;
+        }
+        return prop in target;
+    },
+};
+function replaceTraps(callback) {
+    idbProxyTraps = callback(idbProxyTraps);
+}
+function wrapFunction(func) {
+    // Due to expected object equality (which is enforced by the caching in `wrap`), we
+    // only create one new func per func.
+    // Edge doesn't support objectStoreNames (booo), so we polyfill it here.
+    if (func === IDBDatabase.prototype.transaction &&
+        !('objectStoreNames' in IDBTransaction.prototype)) {
+        return function (storeNames, ...args) {
+            const tx = func.call(unwrap(this), storeNames, ...args);
+            transactionStoreNamesMap.set(tx, storeNames.sort ? storeNames.sort() : [storeNames]);
+            return wrap(tx);
+        };
+    }
+    // Cursor methods are special, as the behaviour is a little more different to standard IDB. In
+    // IDB, you advance the cursor and wait for a new 'success' on the IDBRequest that gave you the
+    // cursor. It's kinda like a promise that can resolve with many values. That doesn't make sense
+    // with real promises, so each advance methods returns a new promise for the cursor object, or
+    // undefined if the end of the cursor has been reached.
+    if (getCursorAdvanceMethods().includes(func)) {
+        return function (...args) {
+            // Calling the original function with the proxy as 'this' causes ILLEGAL INVOCATION, so we use
+            // the original object.
+            func.apply(unwrap(this), args);
+            return wrap(cursorRequestMap.get(this));
+        };
+    }
+    return function (...args) {
+        // Calling the original function with the proxy as 'this' causes ILLEGAL INVOCATION, so we use
+        // the original object.
+        return wrap(func.apply(unwrap(this), args));
+    };
+}
+function transformCachableValue(value) {
+    if (typeof value === 'function')
+        return wrapFunction(value);
+    // This doesn't return, it just creates a 'done' promise for the transaction,
+    // which is later returned for transaction.done (see idbObjectHandler).
+    if (value instanceof IDBTransaction)
+        cacheDonePromiseForTransaction(value);
+    if (instanceOfAny(value, getIdbProxyableTypes()))
+        return new Proxy(value, idbProxyTraps);
+    // Return the same value back if we're not going to transform it.
+    return value;
+}
+function wrap(value) {
+    // We sometimes generate multiple promises from a single IDBRequest (eg when cursoring), because
+    // IDB is weird and a single IDBRequest can yield many responses, so these can't be cached.
+    if (value instanceof IDBRequest)
+        return promisifyRequest(value);
+    // If we've already transformed this value before, reuse the transformed value.
+    // This is faster, but it also provides object equality.
+    if (transformCache.has(value))
+        return transformCache.get(value);
+    const newValue = transformCachableValue(value);
+    // Not all types are transformed.
+    // These may be primitive types, so they can't be WeakMap keys.
+    if (newValue !== value) {
+        transformCache.set(value, newValue);
+        reverseTransformCache.set(newValue, value);
+    }
+    return newValue;
+}
+const unwrap = (value) => reverseTransformCache.get(value);
+
+/**
+ * Open a database.
+ *
+ * @param name Name of the database.
+ * @param version Schema version.
+ * @param callbacks Additional callbacks.
+ */
+function openDB(name, version, { blocked, upgrade, blocking, terminated } = {}) {
+    const request = indexedDB.open(name, version);
+    const openPromise = wrap(request);
+    if (upgrade) {
+        request.addEventListener('upgradeneeded', (event) => {
+            upgrade(wrap(request.result), event.oldVersion, event.newVersion, wrap(request.transaction), event);
+        });
+    }
+    if (blocked) {
+        request.addEventListener('blocked', (event) => blocked(
+        // Casting due to https://github.com/microsoft/TypeScript-DOM-lib-generator/pull/1405
+        event.oldVersion, event.newVersion, event));
+    }
+    openPromise
+        .then((db) => {
+        if (terminated)
+            db.addEventListener('close', () => terminated());
+        if (blocking) {
+            db.addEventListener('versionchange', (event) => blocking(event.oldVersion, event.newVersion, event));
+        }
+    })
+        .catch(() => { });
+    return openPromise;
+}
+
+const readMethods = ['get', 'getKey', 'getAll', 'getAllKeys', 'count'];
+const writeMethods = ['put', 'add', 'delete', 'clear'];
+const cachedMethods = new Map();
+function getMethod(target, prop) {
+    if (!(target instanceof IDBDatabase &&
+        !(prop in target) &&
+        typeof prop === 'string')) {
+        return;
+    }
+    if (cachedMethods.get(prop))
+        return cachedMethods.get(prop);
+    const targetFuncName = prop.replace(/FromIndex$/, '');
+    const useIndex = prop !== targetFuncName;
+    const isWrite = writeMethods.includes(targetFuncName);
+    if (
+    // Bail if the target doesn't exist on the target. Eg, getAll isn't in Edge.
+    !(targetFuncName in (useIndex ? IDBIndex : IDBObjectStore).prototype) ||
+        !(isWrite || readMethods.includes(targetFuncName))) {
+        return;
+    }
+    const method = async function (storeName, ...args) {
+        // isWrite ? 'readwrite' : undefined gzipps better, but fails in Edge :(
+        const tx = this.transaction(storeName, isWrite ? 'readwrite' : 'readonly');
+        let target = tx.store;
+        if (useIndex)
+            target = target.index(args.shift());
+        // Must reject if op rejects.
+        // If it's a write operation, must reject if tx.done rejects.
+        // Must reject with op rejection first.
+        // Must resolve with op value.
+        // Must handle both promises (no unhandled rejections)
+        return (await Promise.all([
+            target[targetFuncName](...args),
+            isWrite && tx.done,
+        ]))[0];
+    };
+    cachedMethods.set(prop, method);
+    return method;
+}
+replaceTraps((oldTraps) => ({
+    ...oldTraps,
+    get: (target, prop, receiver) => getMethod(target, prop) || oldTraps.get(target, prop, receiver),
+    has: (target, prop) => !!getMethod(target, prop) || oldTraps.has(target, prop),
+}));
+
+/**
+ * @license
+ * Copyright 2019 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+class PlatformLoggerServiceImpl {
+    constructor(container) {
+        this.container = container;
+    }
+    // In initial implementation, this will be called by installations on
+    // auth token refresh, and installations will send this string.
+    getPlatformInfoString() {
+        const providers = this.container.getProviders();
+        // Loop through providers and get library/version pairs from any that are
+        // version components.
+        return providers
+            .map(provider => {
+            if (isVersionServiceProvider(provider)) {
+                const service = provider.getImmediate();
+                return `${service.library}/${service.version}`;
+            }
+            else {
+                return null;
+            }
+        })
+            .filter(logString => logString)
+            .join(' ');
+    }
+}
+/**
+ *
+ * @param provider check if this provider provides a VersionService
+ *
+ * NOTE: Using Provider<'app-version'> is a hack to indicate that the provider
+ * provides VersionService. The provider is not necessarily a 'app-version'
+ * provider.
+ */
+function isVersionServiceProvider(provider) {
+    const component = provider.getComponent();
+    return (component === null || component === void 0 ? void 0 : component.type) === "VERSION" /* ComponentType.VERSION */;
+}
+
+const name$o = "https://www.gstatic.com/firebasejs/10.8.0/firebase-app.js";
+const version$1 = "0.9.27";
+
+/**
+ * @license
+ * Copyright 2019 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+const logger = new Logger('https://www.gstatic.com/firebasejs/10.8.0/firebase-app.js');
+
+const name$n = "@firebase/app-compat";
+
+const name$m = "@firebase/analytics-compat";
+
+const name$l = "@firebase/analytics";
+
+const name$k = "@firebase/app-check-compat";
+
+const name$j = "@firebase/app-check";
+
+const name$i = "@firebase/auth";
+
+const name$h = "@firebase/auth-compat";
+
+const name$g = "@firebase/database";
+
+const name$f = "@firebase/database-compat";
+
+const name$e = "@firebase/functions";
+
+const name$d = "@firebase/functions-compat";
+
+const name$c = "@firebase/installations";
+
+const name$b = "@firebase/installations-compat";
+
+const name$a = "@firebase/messaging";
+
+const name$9 = "@firebase/messaging-compat";
+
+const name$8 = "@firebase/performance";
+
+const name$7 = "@firebase/performance-compat";
+
+const name$6 = "@firebase/remote-config";
+
+const name$5 = "@firebase/remote-config-compat";
+
+const name$4 = "@firebase/storage";
+
+const name$3 = "@firebase/storage-compat";
+
+const name$2 = "@firebase/firestore";
+
+const name$1 = "@firebase/firestore-compat";
+
+const name$p = "firebase";
+const version$2 = "10.8.0";
+
+/**
+ * @license
+ * Copyright 2019 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+/**
+ * The default app name
+ *
+ * @internal
+ */
+const DEFAULT_ENTRY_NAME = '[DEFAULT]';
+const PLATFORM_LOG_STRING = {
+    [name$o]: 'fire-core',
+    [name$n]: 'fire-core-compat',
+    [name$l]: 'fire-analytics',
+    [name$m]: 'fire-analytics-compat',
+    [name$j]: 'fire-app-check',
+    [name$k]: 'fire-app-check-compat',
+    [name$i]: 'fire-auth',
+    [name$h]: 'fire-auth-compat',
+    [name$g]: 'fire-rtdb',
+    [name$f]: 'fire-rtdb-compat',
+    [name$e]: 'fire-fn',
+    [name$d]: 'fire-fn-compat',
+    [name$c]: 'fire-iid',
+    [name$b]: 'fire-iid-compat',
+    [name$a]: 'fire-fcm',
+    [name$9]: 'fire-fcm-compat',
+    [name$8]: 'fire-perf',
+    [name$7]: 'fire-perf-compat',
+    [name$6]: 'fire-rc',
+    [name$5]: 'fire-rc-compat',
+    [name$4]: 'fire-gcs',
+    [name$3]: 'fire-gcs-compat',
+    [name$2]: 'fire-fst',
+    [name$1]: 'fire-fst-compat',
+    'fire-js': 'fire-js',
+    [name$p]: 'fire-js-all'
+};
+
+/**
+ * @license
+ * Copyright 2019 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+/**
+ * @internal
+ */
+const _apps = new Map();
+/**
+ * Registered components.
+ *
+ * @internal
+ */
+// eslint-disable-next-line @typescript-eslint/no-explicit-any
+const _components = new Map();
+/**
+ * @param component - the component being added to this app's container
+ *
+ * @internal
+ */
+function _addComponent(app, component) {
+    try {
+        app.container.addComponent(component);
+    }
+    catch (e) {
+        logger.debug(`Component ${component.name} failed to register with FirebaseApp ${app.name}`, e);
+    }
+}
+/**
+ *
+ * @internal
+ */
+function _addOrOverwriteComponent(app, component) {
+    app.container.addOrOverwriteComponent(component);
+}
+/**
+ *
+ * @param component - the component to register
+ * @returns whether or not the component is registered successfully
+ *
+ * @internal
+ */
+function _registerComponent(component) {
+    const componentName = component.name;
+    if (_components.has(componentName)) {
+        logger.debug(`There were multiple attempts to register component ${componentName}.`);
+        return false;
+    }
+    _components.set(componentName, component);
+    // add the component to existing app instances
+    for (const app of _apps.values()) {
+        _addComponent(app, component);
+    }
+    return true;
+}
+/**
+ *
+ * @param app - FirebaseApp instance
+ * @param name - service name
+ *
+ * @returns the provider for the service with the matching name
+ *
+ * @internal
+ */
+function _getProvider(app, name) {
+    const heartbeatController = app.container
+        .getProvider('heartbeat')
+        .getImmediate({ optional: true });
+    if (heartbeatController) {
+        void heartbeatController.triggerHeartbeat();
+    }
+    return app.container.getProvider(name);
+}
+/**
+ *
+ * @param app - FirebaseApp instance
+ * @param name - service name
+ * @param instanceIdentifier - service instance identifier in case the service supports multiple instances
+ *
+ * @internal
+ */
+function _removeServiceInstance(app, name, instanceIdentifier = DEFAULT_ENTRY_NAME) {
+    _getProvider(app, name).clearInstance(instanceIdentifier);
+}
+/**
+ * Test only
+ *
+ * @internal
+ */
+function _clearComponents() {
+    _components.clear();
+}
+
+/**
+ * @license
+ * Copyright 2019 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+const ERRORS = {
+    ["no-app" /* AppError.NO_APP */]: "No Firebase App '{$appName}' has been created - " +
+        'call initializeApp() first',
+    ["bad-app-name" /* AppError.BAD_APP_NAME */]: "Illegal App name: '{$appName}",
+    ["duplicate-app" /* AppError.DUPLICATE_APP */]: "Firebase App named '{$appName}' already exists with different options or config",
+    ["app-deleted" /* AppError.APP_DELETED */]: "Firebase App named '{$appName}' already deleted",
+    ["no-options" /* AppError.NO_OPTIONS */]: 'Need to provide options, when not being deployed to hosting via source.',
+    ["invalid-app-argument" /* AppError.INVALID_APP_ARGUMENT */]: 'firebase.{$appName}() takes either no argument or a ' +
+        'Firebase App instance.',
+    ["invalid-log-argument" /* AppError.INVALID_LOG_ARGUMENT */]: 'First argument to `onLog` must be null or a function.',
+    ["idb-open" /* AppError.IDB_OPEN */]: 'Error thrown when opening IndexedDB. Original error: {$originalErrorMessage}.',
+    ["idb-get" /* AppError.IDB_GET */]: 'Error thrown when reading from IndexedDB. Original error: {$originalErrorMessage}.',
+    ["idb-set" /* AppError.IDB_WRITE */]: 'Error thrown when writing to IndexedDB. Original error: {$originalErrorMessage}.',
+    ["idb-delete" /* AppError.IDB_DELETE */]: 'Error thrown when deleting from IndexedDB. Original error: {$originalErrorMessage}.'
+};
+const ERROR_FACTORY = new ErrorFactory('app', 'Firebase', ERRORS);
+
+/**
+ * @license
+ * Copyright 2019 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+class FirebaseAppImpl {
+    constructor(options, config, container) {
+        this._isDeleted = false;
+        this._options = Object.assign({}, options);
+        this._config = Object.assign({}, config);
+        this._name = config.name;
+        this._automaticDataCollectionEnabled =
+            config.automaticDataCollectionEnabled;
+        this._container = container;
+        this.container.addComponent(new Component('app', () => this, "PUBLIC" /* ComponentType.PUBLIC */));
+    }
+    get automaticDataCollectionEnabled() {
+        this.checkDestroyed();
+        return this._automaticDataCollectionEnabled;
+    }
+    set automaticDataCollectionEnabled(val) {
+        this.checkDestroyed();
+        this._automaticDataCollectionEnabled = val;
+    }
+    get name() {
+        this.checkDestroyed();
+        return this._name;
+    }
+    get options() {
+        this.checkDestroyed();
+        return this._options;
+    }
+    get config() {
+        this.checkDestroyed();
+        return this._config;
+    }
+    get container() {
+        return this._container;
+    }
+    get isDeleted() {
+        return this._isDeleted;
+    }
+    set isDeleted(val) {
+        this._isDeleted = val;
+    }
+    /**
+     * This function will throw an Error if the App has already been deleted -
+     * use before performing API actions on the App.
+     */
+    checkDestroyed() {
+        if (this.isDeleted) {
+            throw ERROR_FACTORY.create("app-deleted" /* AppError.APP_DELETED */, { appName: this._name });
+        }
+    }
+}
+
+/**
+ * @license
+ * Copyright 2019 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+/**
+ * The current SDK version.
+ *
+ * @public
+ */
+const SDK_VERSION = version$2;
+function initializeApp(_options, rawConfig = {}) {
+    let options = _options;
+    if (typeof rawConfig !== 'object') {
+        const name = rawConfig;
+        rawConfig = { name };
+    }
+    const config = Object.assign({ name: DEFAULT_ENTRY_NAME, automaticDataCollectionEnabled: false }, rawConfig);
+    const name = config.name;
+    if (typeof name !== 'string' || !name) {
+        throw ERROR_FACTORY.create("bad-app-name" /* AppError.BAD_APP_NAME */, {
+            appName: String(name)
+        });
+    }
+    options || (options = getDefaultAppConfig());
+    if (!options) {
+        throw ERROR_FACTORY.create("no-options" /* AppError.NO_OPTIONS */);
+    }
+    const existingApp = _apps.get(name);
+    if (existingApp) {
+        // return the existing app if options and config deep equal the ones in the existing app.
+        if (deepEqual(options, existingApp.options) &&
+            deepEqual(config, existingApp.config)) {
+            return existingApp;
+        }
+        else {
+            throw ERROR_FACTORY.create("duplicate-app" /* AppError.DUPLICATE_APP */, { appName: name });
+        }
+    }
+    const container = new ComponentContainer(name);
+    for (const component of _components.values()) {
+        container.addComponent(component);
+    }
+    const newApp = new FirebaseAppImpl(options, config, container);
+    _apps.set(name, newApp);
+    return newApp;
+}
+/**
+ * Retrieves a {@link @firebase/app#FirebaseApp} instance.
+ *
+ * When called with no arguments, the default app is returned. When an app name
+ * is provided, the app corresponding to that name is returned.
+ *
+ * An exception is thrown if the app being retrieved has not yet been
+ * initialized.
+ *
+ * @example
+ * ```javascript
+ * // Return the default app
+ * const app = getApp();
+ * ```
+ *
+ * @example
+ * ```javascript
+ * // Return a named app
+ * const otherApp = getApp("otherApp");
+ * ```
+ *
+ * @param name - Optional name of the app to return. If no name is
+ *   provided, the default is `"[DEFAULT]"`.
+ *
+ * @returns The app corresponding to the provided app name.
+ *   If no app name is provided, the default app is returned.
+ *
+ * @public
+ */
+function getApp(name = DEFAULT_ENTRY_NAME) {
+    const app = _apps.get(name);
+    if (!app && name === DEFAULT_ENTRY_NAME && getDefaultAppConfig()) {
+        return initializeApp();
+    }
+    if (!app) {
+        throw ERROR_FACTORY.create("no-app" /* AppError.NO_APP */, { appName: name });
+    }
+    return app;
+}
+/**
+ * A (read-only) array of all initialized apps.
+ * @public
+ */
+function getApps() {
+    return Array.from(_apps.values());
+}
+/**
+ * Renders this app unusable and frees the resources of all associated
+ * services.
+ *
+ * @example
+ * ```javascript
+ * deleteApp(app)
+ *   .then(function() {
+ *     console.log("App deleted successfully");
+ *   })
+ *   .catch(function(error) {
+ *     console.log("Error deleting app:", error);
+ *   });
+ * ```
+ *
+ * @public
+ */
+async function deleteApp(app) {
+    const name = app.name;
+    if (_apps.has(name)) {
+        _apps.delete(name);
+        await Promise.all(app.container
+            .getProviders()
+            .map(provider => provider.delete()));
+        app.isDeleted = true;
+    }
+}
+/**
+ * Registers a library's name and version for platform logging purposes.
+ * @param library - Name of 1p or 3p library (e.g. firestore, angularfire)
+ * @param version - Current version of that library.
+ * @param variant - Bundle variant, e.g., node, rn, etc.
+ *
+ * @public
+ */
+function registerVersion(libraryKeyOrName, version, variant) {
+    var _a;
+    // TODO: We can use this check to whitelist strings when/if we set up
+    // a good whitelist system.
+    let library = (_a = PLATFORM_LOG_STRING[libraryKeyOrName]) !== null && _a !== void 0 ? _a : libraryKeyOrName;
+    if (variant) {
+        library += `-${variant}`;
+    }
+    const libraryMismatch = library.match(/\s|\//);
+    const versionMismatch = version.match(/\s|\//);
+    if (libraryMismatch || versionMismatch) {
+        const warning = [
+            `Unable to register library "${library}" with version "${version}":`
+        ];
+        if (libraryMismatch) {
+            warning.push(`library name "${library}" contains illegal characters (whitespace or "/")`);
+        }
+        if (libraryMismatch && versionMismatch) {
+            warning.push('and');
+        }
+        if (versionMismatch) {
+            warning.push(`version name "${version}" contains illegal characters (whitespace or "/")`);
+        }
+        logger.warn(warning.join(' '));
+        return;
+    }
+    _registerComponent(new Component(`${library}-version`, () => ({ library, version }), "VERSION" /* ComponentType.VERSION */));
+}
+/**
+ * Sets log handler for all Firebase SDKs.
+ * @param logCallback - An optional custom log handler that executes user code whenever
+ * the Firebase SDK makes a logging call.
+ *
+ * @public
+ */
+function onLog(logCallback, options) {
+    if (logCallback !== null && typeof logCallback !== 'function') {
+        throw ERROR_FACTORY.create("invalid-log-argument" /* AppError.INVALID_LOG_ARGUMENT */);
+    }
+    setUserLogHandler(logCallback, options);
+}
+/**
+ * Sets log level for all Firebase SDKs.
+ *
+ * All of the log types above the current log level are captured (i.e. if
+ * you set the log level to `info`, errors are logged, but `debug` and
+ * `verbose` logs are not).
+ *
+ * @public
+ */
+function setLogLevel(logLevel) {
+    setLogLevel$1(logLevel);
+}
+
+/**
+ * @license
+ * Copyright 2021 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+const DB_NAME = 'firebase-heartbeat-database';
+const DB_VERSION = 1;
+const STORE_NAME = 'firebase-heartbeat-store';
+let dbPromise = null;
+function getDbPromise() {
+    if (!dbPromise) {
+        dbPromise = openDB(DB_NAME, DB_VERSION, {
+            upgrade: (db, oldVersion) => {
+                // We don't use 'break' in this switch statement, the fall-through
+                // behavior is what we want, because if there are multiple versions between
+                // the old version and the current version, we want ALL the migrations
+                // that correspond to those versions to run, not only the last one.
+                // eslint-disable-next-line default-case
+                switch (oldVersion) {
+                    case 0:
+                        try {
+                            db.createObjectStore(STORE_NAME);
+                        }
+                        catch (e) {
+                            // Safari/iOS browsers throw occasional exceptions on
+                            // db.createObjectStore() that may be a bug. Avoid blocking
+                            // the rest of the app functionality.
+                            console.warn(e);
+                        }
+                }
+            }
+        }).catch(e => {
+            throw ERROR_FACTORY.create("idb-open" /* AppError.IDB_OPEN */, {
+                originalErrorMessage: e.message
+            });
+        });
+    }
+    return dbPromise;
+}
+async function readHeartbeatsFromIndexedDB(app) {
+    try {
+        const db = await getDbPromise();
+        const tx = db.transaction(STORE_NAME);
+        const result = await tx.objectStore(STORE_NAME).get(computeKey(app));
+        // We already have the value but tx.done can throw,
+        // so we need to await it here to catch errors
+        await tx.done;
+        return result;
+    }
+    catch (e) {
+        if (e instanceof FirebaseError) {
+            logger.warn(e.message);
+        }
+        else {
+            const idbGetError = ERROR_FACTORY.create("idb-get" /* AppError.IDB_GET */, {
+                originalErrorMessage: e === null || e === void 0 ? void 0 : e.message
+            });
+            logger.warn(idbGetError.message);
+        }
+    }
+}
+async function writeHeartbeatsToIndexedDB(app, heartbeatObject) {
+    try {
+        const db = await getDbPromise();
+        const tx = db.transaction(STORE_NAME, 'readwrite');
+        const objectStore = tx.objectStore(STORE_NAME);
+        await objectStore.put(heartbeatObject, computeKey(app));
+        await tx.done;
+    }
+    catch (e) {
+        if (e instanceof FirebaseError) {
+            logger.warn(e.message);
+        }
+        else {
+            const idbGetError = ERROR_FACTORY.create("idb-set" /* AppError.IDB_WRITE */, {
+                originalErrorMessage: e === null || e === void 0 ? void 0 : e.message
+            });
+            logger.warn(idbGetError.message);
+        }
+    }
+}
+function computeKey(app) {
+    return `${app.name}!${app.options.appId}`;
+}
+
+/**
+ * @license
+ * Copyright 2021 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+const MAX_HEADER_BYTES = 1024;
+// 30 days
+const STORED_HEARTBEAT_RETENTION_MAX_MILLIS = 30 * 24 * 60 * 60 * 1000;
+class HeartbeatServiceImpl {
+    constructor(container) {
+        this.container = container;
+        /**
+         * In-memory cache for heartbeats, used by getHeartbeatsHeader() to generate
+         * the header string.
+         * Stores one record per date. This will be consolidated into the standard
+         * format of one record per user agent string before being sent as a header.
+         * Populated from indexedDB when the controller is instantiated and should
+         * be kept in sync with indexedDB.
+         * Leave public for easier testing.
+         */
+        this._heartbeatsCache = null;
+        const app = this.container.getProvider('app').getImmediate();
+        this._storage = new HeartbeatStorageImpl(app);
+        this._heartbeatsCachePromise = this._storage.read().then(result => {
+            this._heartbeatsCache = result;
+            return result;
+        });
+    }
+    /**
+     * Called to report a heartbeat. The function will generate
+     * a HeartbeatsByUserAgent object, update heartbeatsCache, and persist it
+     * to IndexedDB.
+     * Note that we only store one heartbeat per day. So if a heartbeat for today is
+     * already logged, subsequent calls to this function in the same day will be ignored.
+     */
+    async triggerHeartbeat() {
+        var _a, _b;
+        const platformLogger = this.container
+            .getProvider('platform-logger')
+            .getImmediate();
+        // This is the "Firebase user agent" string from the platform logger
+        // service, not the browser user agent.
+        const agent = platformLogger.getPlatformInfoString();
+        const date = getUTCDateString();
+        if (((_a = this._heartbeatsCache) === null || _a === void 0 ? void 0 : _a.heartbeats) == null) {
+            this._heartbeatsCache = await this._heartbeatsCachePromise;
+            // If we failed to construct a heartbeats cache, then return immediately.
+            if (((_b = this._heartbeatsCache) === null || _b === void 0 ? void 0 : _b.heartbeats) == null) {
+                return;
+            }
+        }
+        // Do not store a heartbeat if one is already stored for this day
+        // or if a header has already been sent today.
+        if (this._heartbeatsCache.lastSentHeartbeatDate === date ||
+            this._heartbeatsCache.heartbeats.some(singleDateHeartbeat => singleDateHeartbeat.date === date)) {
+            return;
+        }
+        else {
+            // There is no entry for this date. Create one.
+            this._heartbeatsCache.heartbeats.push({ date, agent });
+        }
+        // Remove entries older than 30 days.
+        this._heartbeatsCache.heartbeats = this._heartbeatsCache.heartbeats.filter(singleDateHeartbeat => {
+            const hbTimestamp = new Date(singleDateHeartbeat.date).valueOf();
+            const now = Date.now();
+            return now - hbTimestamp <= STORED_HEARTBEAT_RETENTION_MAX_MILLIS;
+        });
+        return this._storage.overwrite(this._heartbeatsCache);
+    }
+    /**
+     * Returns a base64 encoded string which can be attached to the heartbeat-specific header directly.
+     * It also clears all heartbeats from memory as well as in IndexedDB.
+     *
+     * NOTE: Consuming product SDKs should not send the header if this method
+     * returns an empty string.
+     */
+    async getHeartbeatsHeader() {
+        var _a;
+        if (this._heartbeatsCache === null) {
+            await this._heartbeatsCachePromise;
+        }
+        // If it's still null or the array is empty, there is no data to send.
+        if (((_a = this._heartbeatsCache) === null || _a === void 0 ? void 0 : _a.heartbeats) == null ||
+            this._heartbeatsCache.heartbeats.length === 0) {
+            return '';
+        }
+        const date = getUTCDateString();
+        // Extract as many heartbeats from the cache as will fit under the size limit.
+        const { heartbeatsToSend, unsentEntries } = extractHeartbeatsForHeader(this._heartbeatsCache.heartbeats);
+        const headerString = base64urlEncodeWithoutPadding(JSON.stringify({ version: 2, heartbeats: heartbeatsToSend }));
+        // Store last sent date to prevent another being logged/sent for the same day.
+        this._heartbeatsCache.lastSentHeartbeatDate = date;
+        if (unsentEntries.length > 0) {
+            // Store any unsent entries if they exist.
+            this._heartbeatsCache.heartbeats = unsentEntries;
+            // This seems more likely than emptying the array (below) to lead to some odd state
+            // since the cache isn't empty and this will be called again on the next request,
+            // and is probably safest if we await it.
+            await this._storage.overwrite(this._heartbeatsCache);
+        }
+        else {
+            this._heartbeatsCache.heartbeats = [];
+            // Do not wait for this, to reduce latency.
+            void this._storage.overwrite(this._heartbeatsCache);
+        }
+        return headerString;
+    }
+}
+function getUTCDateString() {
+    const today = new Date();
+    // Returns date format 'YYYY-MM-DD'
+    return today.toISOString().substring(0, 10);
+}
+function extractHeartbeatsForHeader(heartbeatsCache, maxSize = MAX_HEADER_BYTES) {
+    // Heartbeats grouped by user agent in the standard format to be sent in
+    // the header.
+    const heartbeatsToSend = [];
+    // Single date format heartbeats that are not sent.
+    let unsentEntries = heartbeatsCache.slice();
+    for (const singleDateHeartbeat of heartbeatsCache) {
+        // Look for an existing entry with the same user agent.
+        const heartbeatEntry = heartbeatsToSend.find(hb => hb.agent === singleDateHeartbeat.agent);
+        if (!heartbeatEntry) {
+            // If no entry for this user agent exists, create one.
+            heartbeatsToSend.push({
+                agent: singleDateHeartbeat.agent,
+                dates: [singleDateHeartbeat.date]
+            });
+            if (countBytes(heartbeatsToSend) > maxSize) {
+                // If the header would exceed max size, remove the added heartbeat
+                // entry and stop adding to the header.
+                heartbeatsToSend.pop();
+                break;
+            }
+        }
+        else {
+            heartbeatEntry.dates.push(singleDateHeartbeat.date);
+            // If the header would exceed max size, remove the added date
+            // and stop adding to the header.
+            if (countBytes(heartbeatsToSend) > maxSize) {
+                heartbeatEntry.dates.pop();
+                break;
+            }
+        }
+        // Pop unsent entry from queue. (Skipped if adding the entry exceeded
+        // quota and the loop breaks early.)
+        unsentEntries = unsentEntries.slice(1);
+    }
+    return {
+        heartbeatsToSend,
+        unsentEntries
+    };
+}
+class HeartbeatStorageImpl {
+    constructor(app) {
+        this.app = app;
+        this._canUseIndexedDBPromise = this.runIndexedDBEnvironmentCheck();
+    }
+    async runIndexedDBEnvironmentCheck() {
+        if (!isIndexedDBAvailable()) {
+            return false;
+        }
+        else {
+            return validateIndexedDBOpenable()
+                .then(() => true)
+                .catch(() => false);
+        }
+    }
+    /**
+     * Read all heartbeats.
+     */
+    async read() {
+        const canUseIndexedDB = await this._canUseIndexedDBPromise;
+        if (!canUseIndexedDB) {
+            return { heartbeats: [] };
+        }
+        else {
+            const idbHeartbeatObject = await readHeartbeatsFromIndexedDB(this.app);
+            if (idbHeartbeatObject === null || idbHeartbeatObject === void 0 ? void 0 : idbHeartbeatObject.heartbeats) {
+                return idbHeartbeatObject;
+            }
+            else {
+                return { heartbeats: [] };
+            }
+        }
+    }
+    // overwrite the storage with the provided heartbeats
+    async overwrite(heartbeatsObject) {
+        var _a;
+        const canUseIndexedDB = await this._canUseIndexedDBPromise;
+        if (!canUseIndexedDB) {
+            return;
+        }
+        else {
+            const existingHeartbeatsObject = await this.read();
+            return writeHeartbeatsToIndexedDB(this.app, {
+                lastSentHeartbeatDate: (_a = heartbeatsObject.lastSentHeartbeatDate) !== null && _a !== void 0 ? _a : existingHeartbeatsObject.lastSentHeartbeatDate,
+                heartbeats: heartbeatsObject.heartbeats
+            });
+        }
+    }
+    // add heartbeats
+    async add(heartbeatsObject) {
+        var _a;
+        const canUseIndexedDB = await this._canUseIndexedDBPromise;
+        if (!canUseIndexedDB) {
+            return;
+        }
+        else {
+            const existingHeartbeatsObject = await this.read();
+            return writeHeartbeatsToIndexedDB(this.app, {
+                lastSentHeartbeatDate: (_a = heartbeatsObject.lastSentHeartbeatDate) !== null && _a !== void 0 ? _a : existingHeartbeatsObject.lastSentHeartbeatDate,
+                heartbeats: [
+                    ...existingHeartbeatsObject.heartbeats,
+                    ...heartbeatsObject.heartbeats
+                ]
+            });
+        }
+    }
+}
+/**
+ * Calculate bytes of a HeartbeatsByUserAgent array after being wrapped
+ * in a platform logging header JSON object, stringified, and converted
+ * to base 64.
+ */
+function countBytes(heartbeatsCache) {
+    // base64 has a restricted set of characters, all of which should be 1 byte.
+    return base64urlEncodeWithoutPadding(
+    // heartbeatsCache wrapper properties
+    JSON.stringify({ version: 2, heartbeats: heartbeatsCache })).length;
+}
+
+/**
+ * @license
+ * Copyright 2019 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+function registerCoreComponents(variant) {
+    _registerComponent(new Component('platform-logger', container => new PlatformLoggerServiceImpl(container), "PRIVATE" /* ComponentType.PRIVATE */));
+    _registerComponent(new Component('heartbeat', container => new HeartbeatServiceImpl(container), "PRIVATE" /* ComponentType.PRIVATE */));
+    // Register `app` package.
+    registerVersion(name$o, version$1, variant);
+    // BUILD_TARGET will be replaced by values like esm5, esm2017, cjs5, etc during the compilation
+    registerVersion(name$o, version$1, 'esm2017');
+    // Register platform SDK identifier (no version).
+    registerVersion('fire-js', '');
+}
+
+/**
+ * Firebase App
+ *
+ * @remarks This package coordinates the communication between the different Firebase components
+ * @packageDocumentation
+ */
+registerCoreComponents('');
+
+var name = "firebase";
+var version = "10.8.0";
+
+/**
+ * @license
+ * Copyright 2020 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+registerVersion(name, version, 'cdn');
+
+export { FirebaseError, SDK_VERSION, DEFAULT_ENTRY_NAME as _DEFAULT_ENTRY_NAME, _addComponent, _addOrOverwriteComponent, _apps, _clearComponents, _components, _getProvider, _registerComponent, _removeServiceInstance, deleteApp, getApp, getApps, initializeApp, onLog, registerVersion, setLogLevel };
+
+//# sourceMappingURL=firebase-app.js.map

packages/firebase/js/firebase-messaging-sw.js

@@ -0,0 +1,21 @@
+importScripts('https://www.gstatic.com/firebasejs/9.2.0/firebase-app-compat.js');
+importScripts('https://www.gstatic.com/firebasejs/9.2.0/firebase-messaging-compat.js');
+importScripts('config.js');
+
+firebase.initializeApp(firebaseConfig);
+
+const messaging = firebase.messaging();
+
+// If you would like to customize notifications that are received in the
+// background (Web app is closed or not in browser focus) then you should
+// implement this optional method.
+// Keep in mind that FCM will still show notification messages automatically 
+// and you should use data messages for custom notifications.
+// For more info see: 
+// https://firebase.google.com/docs/cloud-messaging/concept-options
+messaging.onBackgroundMessage(function(payload) {
+  console.log('[firebase-messaging-sw.js] Received background message ', payload);
+  // Customize notification here
+  const notificationTitle = 'We received a message';
+  self.registration.showNotification(notificationTitle,payload.notification);
+});

packages/firebase/namespaced/Api.Firebase.pas

@@ -0,0 +1,3 @@
+{$DEFINE FPC_DOTTEDUNITS}
+unit Api.Firebase;
+{$include ../src/firebaseapp.pp}

packages/firebase/src/firebaseapp.pp

@@ -0,0 +1,62 @@
+unit firebaseapp;
+{
+  Minimal interface for firebird messaging using compatibility API.
+}
+
+{$mode ObjFPC}
+{$modeswitch externalclass}
+
+interface
+
+uses js, types, weborworker, web;
+
+Type
+
+  TMessagingGetTokenOptions = class external name 'Object' (TJSObject)
+    serviceWorkerRegistration : TJSServiceWorkerRegistration;
+    vapidKey : string;
+  end;
+
+  TFirebaseUnsubscribeFunction = reference to procedure;
+
+  TFirebaseMessageCallBack = reference to procedure(aMessage : TJSObject);
+
+  TFirebaseMessaging = class external name 'firebase.messaging.Messaging' (TJSObject)
+    function deleteToken : boolean; async;
+    function getToken : string; async;
+    function getToken (options : TMessagingGetTokenOptions): string; async;
+    function onBackgroundMessage(aCallback : TFirebaseMessageCallBack) : TFirebaseUnsubscribeFunction;
+    function onMessage(aCallback : TFirebaseMessageCallBack) : TFirebaseUnsubscribeFunction;
+    procedure useServiceWorker(registration : TJSServiceWorkerRegistration);
+  end;
+
+  TFirebaseApp = class external name 'firebase.app.App' (TJSObject)
+  Private
+    fname : string; external name 'name';
+    FOptions : TJSObject; external name 'options';
+  Public
+    function messaging : TFirebaseMessaging;
+    property name: string read FName;
+    property options : TJSObject read FOptions;
+  end;
+
+  TFirebaseLogCallBack = procedure (args : TJSValueDynArray; level : string; Message : string; _type : string);
+
+  TFirebase = class external name 'Firebase' (TJSObject)
+  Private
+    fapps : TJSObjectDynArray; external name 'apps';
+  Public
+    function initializeApp(Obj : TJSObject) : TFirebaseApp;
+    function initializeApp(Obj : TJSObject; const aName : string) : TFirebaseApp;
+    procedure onLog(callback : TFirebaseLogCallBack);
+    procedure onLog(callback : TFirebaseLogCallBack; options : TJSObject);
+    property apps : TJSObjectDynArray read fapps;
+  end;
+
+var
+  firebase : TFirebase external name 'firebase';
+
+implementation
+
+end.
+