// This code is adapted from https://github.com/devblackops/Terminal-Icons (which also uses the MIT license).

using System.Diagnostics.CodeAnalysis;
using System.IO.Abstractions;

namespace Terminal.Gui {

	/// <summary>
	/// Provides a way to get the color of a file or directory.
	/// </summary>
	public class FileSystemColorProvider {
		/// <summary>
		/// Gets the color to use.
		/// </summary>
		/// <param name="file"></param>
		/// <returns></returns>
		public Color? GetColor (IFileSystemInfo file)
		{
			if ( FilenameToColor.TryGetValue (file.Name, out Color nameColor) ) {
				return nameColor;
			}

			if ( ExtensionToColor.TryGetValue (file.Extension, out Color extColor) ) {
				return extColor;
			}

			return null;
		}

		/// <summary>
		/// Mapping of file/dir name to color.
		/// </summary>
		public Dictionary<string, Color> FilenameToColor { get; set; } = new ()
		{
	    {"docs",StringToColor("#00BFFF")},
	    {"documents",StringToColor("#00BFFF")},
	    {"desktop",StringToColor("#00FBFF")},
	    {"benchmark",StringToColor("#F08519")},
	    {"demo",StringToColor("#5F3EC3")},
	    {"samples",StringToColor("#5F3EC3")},
	    {"contacts",StringToColor("#00FBFF")},
	    {"apps",StringToColor("#FF143C")},
	    {"applications",StringToColor("#FF143C")},
	    {"artifacts",StringToColor("#D49653")},
	    {"shortcuts",StringToColor("#FF143C")},
	    {"links",StringToColor("#FF143C")},
	    {"fonts",StringToColor("#DC143C")},
	    {"images",StringToColor("#9ACD32")},
	    {"photos",StringToColor("#9ACD32")},
	    {"pictures",StringToColor("#9ACD32")},
	    {"videos",StringToColor("#FFA500")},
	    {"movies",StringToColor("#FFA500")},
	    {"media",StringToColor("#D3D3D3")},
	    {"music",StringToColor("#DB7093")},
	    {"songs",StringToColor("#DB7093")},
	    {"onedrive",StringToColor("#D3D3D3")},
	    {"downloads",StringToColor("#D3D3D3")},
	    {"src",StringToColor("#00FF7F")},
	    {"development",StringToColor("#00FF7F")},
	    {"projects",StringToColor("#00FF7F")},
	    {"bin",StringToColor("#00FFF7")},
	    {"tests",StringToColor("#87CEEB")},
	    {"windows",StringToColor("#00A8E8")},
	    {"users",StringToColor("#F4F4F4")},
	    {"favorites",StringToColor("#F7D72C")},
	    {"output",StringToColor("#00FF7F")},
	    {".config",StringToColor("#87CEAF")},
	    {".cache",StringToColor("#87ECAF")},
	    {".vscode",StringToColor("#87CEFA")},
	    {".vscode-insiders",StringToColor("#24BFA5")},
	    {".git",StringToColor("#FF4500")},
	    {".github",StringToColor("#C0C0C0")},
	    {"github",StringToColor("#C0C0C0")},
	    {"node_modules",StringToColor("#6B8E23")},
	    {".terraform",StringToColor("#948EEC")},
	    {".azure",StringToColor("#00BFFF")},
	    {".aws",StringToColor("#EC912D")},
	    {".kube",StringToColor("#326DE6")},
	    {".docker",StringToColor("#2391E6")},
	    {".gitattributes",StringToColor("#FF4500")},
	    {".gitconfig",StringToColor("#FF4500")},
	    {".gitignore",StringToColor("#FF4500")},
	    {".gitmodules",StringToColor("#FF4500")},
	    {".gitkeep",StringToColor("#FF4500")},
	    {"git-history",StringToColor("#FF4500")},
	    {"LICENSE",StringToColor("#CD5C5C")},
	    {"LICENSE.md",StringToColor("#CD5C5C")},
	    {"LICENSE.txt",StringToColor("#CD5C5C")},
	    {"CHANGELOG.md",StringToColor("#98FB98")},
	    {"CHANGELOG.txt",StringToColor("#98FB98")},
	    {"CHANGELOG",StringToColor("#98FB98")},
	    {"README.md",StringToColor("#00FFFF")},
	    {"README.txt",StringToColor("#00FFFF")},
	    {"README",StringToColor("#00FFFF")},
	    {".DS_Store",StringToColor("#696969")},
	    {".tsbuildinfo",StringToColor("#F4A460")},
	    {".jscsrc",StringToColor("#F4A460")},
	    {".jshintrc",StringToColor("#F4A460")},
	    {"tsconfig.json",StringToColor("#F4A460")},
	    {"tslint.json",StringToColor("#F4A460")},
	    {"composer.lock",StringToColor("#F4A460")},
	    {".jsbeautifyrc",StringToColor("#F4A460")},
	    {".esformatter",StringToColor("#F4A460")},
	    {"cdp.pid",StringToColor("#F4A460")},
	    {".htaccess",StringToColor("#9ACD32")},
	    {".jshintignore",StringToColor("#87CEEB")},
	    {".buildignore",StringToColor("#87CEEB")},
	    {".mrconfig",StringToColor("#87CEEB")},
	    {".yardopts",StringToColor("#87CEEB")},
	    {"manifest.mf",StringToColor("#87CEEB")},
	    {".clang-format",StringToColor("#87CEEB")},
	    {".clang-tidy",StringToColor("#87CEEB")},
	    {"favicon.ico",StringToColor("#FFD700")},
	    {".travis.yml",StringToColor("#FFE4B5")},
	    {".gitlab-ci.yml",StringToColor("#FF4500")},
	    {".jenkinsfile",StringToColor("#6495ED")},
	    {"bitbucket-pipelines.yml",StringToColor("#87CEFA")},
	    {"bitbucket-pipelines.yaml",StringToColor("#87CEFA")},
	    {".azure-pipelines.yml",StringToColor("#00BFFF")},
	    {"firebase.json",StringToColor("#FFA500")},
	    {".firebaserc",StringToColor("#FFA500")},
	    {".bowerrc",StringToColor("#CD5C5C")},
	    {"bower.json",StringToColor("#CD5C5C")},
	    {"code_of_conduct.md",StringToColor("#FFFFE0")},
	    {"code_of_conduct.txt",StringToColor("#FFFFE0")},
	    {"Dockerfile",StringToColor("#4682B4")},
	    {"docker-compose.yml",StringToColor("#4682B4")},
	    {"docker-compose.yaml",StringToColor("#4682B4")},
	    {"docker-compose.dev.yml",StringToColor("#4682B4")},
	    {"docker-compose.local.yml",StringToColor("#4682B4")},
	    {"docker-compose.ci.yml",StringToColor("#4682B4")},
	    {"docker-compose.override.yml",StringToColor("#4682B4")},
	    {"docker-compose.staging.yml",StringToColor("#4682B4")},
	    {"docker-compose.prod.yml",StringToColor("#4682B4")},
	    {"docker-compose.production.yml",StringToColor("#4682B4")},
	    {"docker-compose.test.yml",StringToColor("#4682B4")},
	    {"vue.config.js",StringToColor("#778899")},
	    {"vue.config.ts",StringToColor("#778899")},
	    {"gulpfile.js",StringToColor("#CD5C5C")},
	    {"gulpfile.ts",StringToColor("#CD5C5C")},
	    {"gulpfile.babel.js",StringToColor("#CD5C5C")},
	    {"gruntfile.js",StringToColor("#CD5C5C")},
	    {"package.json",StringToColor("#6B8E23")},
	    {"package-lock.json",StringToColor("#6B8E23")},
	    {".nvmrc",StringToColor("#6B8E23")},
	    {".esmrc",StringToColor("#6B8E23")},
	    {".nmpignore",StringToColor("#00BFFF")},
	    {".npmrc",StringToColor("#00BFFF")},
	    {"authors",StringToColor("#FF6347")},
	    {"authors.md",StringToColor("#FF6347")},
	    {"authors.txt",StringToColor("#FF6347")},
	    {".terraform.lock.hcl",StringToColor("#948EEC")},
	    {"gradlew",StringToColor("#39D52D")},
	};


		/// <summary>
		/// Mapping of file extension to color.
		/// </summary>
		public Dictionary<string, Color> ExtensionToColor = new ()
	{
			{".7z",StringToColor("#DAA520")},
	    {".bz",StringToColor("#DAA520")},
	    {".tar",StringToColor("#DAA520")},
	    {".zip",StringToColor("#DAA520")},
	    {".gz",StringToColor("#DAA520")},
	    {".xz",StringToColor("#DAA520")},
	    {".br",StringToColor("#DAA520")},
	    {".bzip2",StringToColor("#DAA520")},
	    {".gzip",StringToColor("#DAA520")},
	    {".brotli",StringToColor("#DAA520")},
	    {".rar",StringToColor("#DAA520")},
	    {".tgz",StringToColor("#DAA520")},
	    {".bat",StringToColor("#008000")},
	    {".cmd",StringToColor("#008000")},
	    {".exe",StringToColor("#00FA9A")},
	    {".pl",StringToColor("#8A2BE2")},
	    {".sh",StringToColor("#FF4500")},
	    {".msi",StringToColor("#FFC77A")},
	    {".msix",StringToColor("#FFC77A")},
	    {".msixbundle",StringToColor("#FFC77A")},
	    {".appx",StringToColor("#FFC77A")},
	    {".AppxBundle",StringToColor("#FFC77A")},
	    {".deb",StringToColor("#FFC77A")},
	    {".rpm",StringToColor("#FFC77A")},
	    {".ps1",StringToColor("#00BFFF")},
	    {".psm1",StringToColor("#00BFFF")},
	    {".psd1",StringToColor("#00BFFF")},
	    {".ps1xml",StringToColor("#00BFFF")},
	    {".psc1",StringToColor("#00BFFF")},
	    {".pssc",StringToColor("#00BFFF")},
	    {".js",StringToColor("#F0E68C")},
	    {".esx",StringToColor("#F0E68C")},
	    {".mjs",StringToColor("#F0E68C")},
	    {".java",StringToColor("#F89820")},
	    {".jar",StringToColor("#F89820")},
	    {".gradle",StringToColor("#39D52D")},
	    {".py",StringToColor("#4B8BBE")},
	    {".ipynb",StringToColor("#4B8BBE")},
	    {".jsx",StringToColor("#20B2AA")},
	    {".tsx",StringToColor("#20B2AA")},
	    {".ts",StringToColor("#F0E68C")},
	    {".dll",StringToColor("#87CEEB")},
	    {".clixml",StringToColor("#00BFFF")},
	    {".csv",StringToColor("#9ACD32")},
	    {".tsv",StringToColor("#9ACD32")},
	    {".ini",StringToColor("#6495ED")},
	    {".dlc",StringToColor("#6495ED")},
	    {".config",StringToColor("#6495ED")},
	    {".conf",StringToColor("#6495ED")},
	    {".properties",StringToColor("#6495ED")},
	    {".prop",StringToColor("#6495ED")},
	    {".settings",StringToColor("#6495ED")},
	    {".option",StringToColor("#6495ED")},
	    {".reg",StringToColor("#6495ED")},
	    {".props",StringToColor("#6495ED")},
	    {".toml",StringToColor("#6495ED")},
	    {".prefs",StringToColor("#6495ED")},
	    {".sln.dotsettings",StringToColor("#6495ED")},
	    {".sln.dotsettings.user",StringToColor("#6495ED")},
	    {".cfg",StringToColor("#6495ED")},
	    {".c",StringToColor("#A9A9A9")},
	    {".cpp",StringToColor("#A9A9A9")},
	    {".go",StringToColor("#20B2AA")},
	    {".php",StringToColor("#6A5ACD")},
	    {".csproj",StringToColor("#EE82EE")},
	    {".ruleset",StringToColor("#EE82EE")},
	    {".sln",StringToColor("#EE82EE")},
	    {".slnf",StringToColor("#EE82EE")},
	    {".suo",StringToColor("#EE82EE")},
	    {".vb",StringToColor("#EE82EE")},
	    {".vbs",StringToColor("#EE82EE")},
	    {".vcxitems",StringToColor("#EE82EE")},
	    {".vcxitems.filters",StringToColor("#EE82EE")},
	    {".vcxproj",StringToColor("#EE82EE")},
	    {".vsxproj.filters",StringToColor("#EE82EE")},
	    {".cs",StringToColor("#7B68EE")},
	    {".csx",StringToColor("#7B68EE")},
	    {".hs",StringToColor("#9932CC")},
	    {".xaml",StringToColor("#87CEFA")},
	    {".rs",StringToColor("#FF4500")},
	    {".pdb",StringToColor("#FFD700")},
	    {".sql",StringToColor("#FFD700")},
	    {".pks",StringToColor("#FFD700")},
	    {".pkb",StringToColor("#FFD700")},
	    {".accdb",StringToColor("#FFD700")},
	    {".mdb",StringToColor("#FFD700")},
	    {".sqlite",StringToColor("#FFD700")},
	    {".pgsql",StringToColor("#FFD700")},
	    {".postgres",StringToColor("#FFD700")},
	    {".psql",StringToColor("#FFD700")},
	    {".patch",StringToColor("#FF4500")},
	    {".user",StringToColor("#00BFFF")},
	    {".code-workspace",StringToColor("#00BFFF")},
	    {".log",StringToColor("#F0E68C")},
	    {".txt",StringToColor("#00CED1")},
	    {".srt",StringToColor("#00CED1")},
	    {".lrc",StringToColor("#00CED1")},
	    {".ass",StringToColor("#C50000")},
	    {".html",StringToColor("#CD5C5C")},
	    {".htm",StringToColor("#CD5C5C")},
	    {".xhtml",StringToColor("#CD5C5C")},
	    {".html_vm",StringToColor("#CD5C5C")},
	    {".asp",StringToColor("#CD5C5C")},
	    {".css",StringToColor("#87CEFA")},
	    {".sass",StringToColor("#FF00FF")},
	    {".scss",StringToColor("#FF00FF")},
	    {".less",StringToColor("#6B8E23")},
	    {".md",StringToColor("#00BFFF")},
	    {".markdown",StringToColor("#00BFFF")},
	    {".rst",StringToColor("#00BFFF")},
	    {".hbs",StringToColor("#E37933")},
	    {".json",StringToColor("#FFD700")},
	    {".tsbuildinfo",StringToColor("#FFD700")},
	    {".yml",StringToColor("#FF6347")},
	    {".yaml",StringToColor("#FF6347")},
	    {".lua",StringToColor("#87CEFA")},
	    {".clj",StringToColor("#00FF7F")},
	    {".cljs",StringToColor("#00FF7F")},
	    {".cljc",StringToColor("#00FF7F")},
	    {".groovy",StringToColor("#87CEFA")},
	    {".vue",StringToColor("#20B2AA")},
	    {".dart",StringToColor("#4682B4")},
	    {".ex",StringToColor("#8B4513")},
	    {".exs",StringToColor("#8B4513")},
	    {".eex",StringToColor("#8B4513")},
	    {".leex",StringToColor("#8B4513")},
	    {".erl",StringToColor("#FF6347")},
	    {".elm",StringToColor("#9932CC")},
	    {".applescript",StringToColor("#4682B4")},
	    {".xml",StringToColor("#98FB98")},
	    {".plist",StringToColor("#98FB98")},
	    {".xsd",StringToColor("#98FB98")},
	    {".dtd",StringToColor("#98FB98")},
	    {".xsl",StringToColor("#98FB98")},
	    {".xslt",StringToColor("#98FB98")},
	    {".resx",StringToColor("#98FB98")},
	    {".iml",StringToColor("#98FB98")},
	    {".xquery",StringToColor("#98FB98")},
	    {".tmLanguage",StringToColor("#98FB98")},
	    {".manifest",StringToColor("#98FB98")},
	    {".project",StringToColor("#98FB98")},
	    {".chm",StringToColor("#87CEEB")},
	    {".pdf",StringToColor("#CD5C5C")},
	    {".xls",StringToColor("#9ACD32")},
	    {".xlsx",StringToColor("#9ACD32")},
	    {".pptx",StringToColor("#DC143C")},
	    {".ppt",StringToColor("#DC143C")},
	    {".pptm",StringToColor("#DC143C")},
	    {".potx",StringToColor("#DC143C")},
	    {".potm",StringToColor("#DC143C")},
	    {".ppsx",StringToColor("#DC143C")},
	    {".ppsm",StringToColor("#DC143C")},
	    {".pps",StringToColor("#DC143C")},
	    {".ppam",StringToColor("#DC143C")},
	    {".ppa",StringToColor("#DC143C")},
	    {".doc",StringToColor("#00BFFF")},
	    {".docx",StringToColor("#00BFFF")},
	    {".rtf",StringToColor("#00BFFF")},
	    {".mp3",StringToColor("#DB7093")},
	    {".flac",StringToColor("#DB7093")},
	    {".m4a",StringToColor("#DB7093")},
	    {".wma",StringToColor("#DB7093")},
	    {".aiff",StringToColor("#DB7093")},
	    {".wav",StringToColor("#DB7093")},
	    {".aac",StringToColor("#DB7093")},
	    {".opus",StringToColor("#DB7093")},
	    {".png",StringToColor("#20B2AA")},
	    {".jpeg",StringToColor("#20B2AA")},
	    {".jpg",StringToColor("#20B2AA")},
	    {".gif",StringToColor("#20B2AA")},
	    {".ico",StringToColor("#20B2AA")},
	    {".tif",StringToColor("#20B2AA")},
	    {".tiff",StringToColor("#20B2AA")},
	    {".psd",StringToColor("#20B2AA")},
	    {".psb",StringToColor("#20B2AA")},
	    {".ami",StringToColor("#20B2AA")},
	    {".apx",StringToColor("#20B2AA")},
	    {".bmp",StringToColor("#20B2AA")},
	    {".bpg",StringToColor("#20B2AA")},
	    {".brk",StringToColor("#20B2AA")},
	    {".cur",StringToColor("#20B2AA")},
	    {".dds",StringToColor("#20B2AA")},
	    {".dng",StringToColor("#20B2AA")},
	    {".eps",StringToColor("#20B2AA")},
	    {".exr",StringToColor("#20B2AA")},
	    {".fpx",StringToColor("#20B2AA")},
	    {".gbr",StringToColor("#20B2AA")},
	    {".jbig2",StringToColor("#20B2AA")},
	    {".jb2",StringToColor("#20B2AA")},
	    {".jng",StringToColor("#20B2AA")},
	    {".jxr",StringToColor("#20B2AA")},
	    {".pbm",StringToColor("#20B2AA")},
	    {".pgf",StringToColor("#20B2AA")},
	    {".pic",StringToColor("#20B2AA")},
	    {".raw",StringToColor("#20B2AA")},
	    {".webp",StringToColor("#20B2AA")},
	    {".svg",StringToColor("#F4A460")},
	    {".webm",StringToColor("#FFA500")},
	    {".mkv",StringToColor("#FFA500")},
	    {".flv",StringToColor("#FFA500")},
	    {".vob",StringToColor("#FFA500")},
	    {".ogv",StringToColor("#FFA500")},
	    {".ogg",StringToColor("#FFA500")},
	    {".gifv",StringToColor("#FFA500")},
	    {".avi",StringToColor("#FFA500")},
	    {".mov",StringToColor("#FFA500")},
	    {".qt",StringToColor("#FFA500")},
	    {".wmv",StringToColor("#FFA500")},
	    {".yuv",StringToColor("#FFA500")},
	    {".rm",StringToColor("#FFA500")},
	    {".rmvb",StringToColor("#FFA500")},
	    {".mp4",StringToColor("#FFA500")},
	    {".mpg",StringToColor("#FFA500")},
	    {".mp2",StringToColor("#FFA500")},
	    {".mpeg",StringToColor("#FFA500")},
	    {".mpe",StringToColor("#FFA500")},
	    {".mpv",StringToColor("#FFA500")},
	    {".m2v",StringToColor("#FFA500")},
	    {".ics",StringToColor("#00CED1")},
	    {".cer",StringToColor("#FF6347")},
	    {".cert",StringToColor("#FF6347")},
	    {".crt",StringToColor("#FF6347")},
	    {".pfx",StringToColor("#FF6347")},
	    {".pem",StringToColor("#66CDAA")},
	    {".pub",StringToColor("#66CDAA")},
	    {".key",StringToColor("#66CDAA")},
	    {".asc",StringToColor("#66CDAA")},
	    {".gpg",StringToColor("#66CDAA")},
	    {".woff",StringToColor("#DC143C")},
	    {".woff2",StringToColor("#DC143C")},
	    {".ttf",StringToColor("#DC143C")},
	    {".eot",StringToColor("#DC143C")},
	    {".suit",StringToColor("#DC143C")},
	    {".otf",StringToColor("#DC143C")},
	    {".bmap",StringToColor("#DC143C")},
	    {".fnt",StringToColor("#DC143C")},
	    {".odttf",StringToColor("#DC143C")},
	    {".ttc",StringToColor("#DC143C")},
	    {".font",StringToColor("#DC143C")},
	    {".fonts",StringToColor("#DC143C")},
	    {".sui",StringToColor("#DC143C")},
	    {".ntf",StringToColor("#DC143C")},
	    {".mrg",StringToColor("#DC143C")},
	    {".rb",StringToColor("#FF0000")},
	    {".erb",StringToColor("#FF0000")},
	    {".gemfile",StringToColor("#FF0000")},
	    {"Rakefile",StringToColor("#FF0000")},
	    {".fs",StringToColor("#00BFFF")},
	    {".fsx",StringToColor("#00BFFF")},
	    {".fsi",StringToColor("#00BFFF")},
	    {".fsproj",StringToColor("#00BFFF")},
	    {".dockerignore",StringToColor("#4682B4")},
	    {".dockerfile",StringToColor("#4682B4")},
	    {".vscodeignore",StringToColor("#6495ED")},
	    {".vsixmanifest",StringToColor("#6495ED")},
	    {".vsix",StringToColor("#6495ED")},
	    {".code-workplace",StringToColor("#6495ED")},
	    {".sublime-project",StringToColor("#F4A460")},
	    {".sublime-workspace",StringToColor("#F4A460")},
	    {".lock",StringToColor("#DAA520")},
	    {".tf",StringToColor("#948EEC")},
	    {".tfvars",StringToColor("#948EEC")},
	    {".auto.tfvars",StringToColor("#948EEC")},
	    {".bicep",StringToColor("#00BFFF")},
	    {".vmdk",StringToColor("#E1E3E6")},
	    {".vhd",StringToColor("#E1E3E6")},
	    {".vhdx",StringToColor("#E1E3E6")},
	    {".img",StringToColor("#E1E3E6")},
	    {".iso",StringToColor("#E1E3E6")},
	    {".R",StringToColor("#276DC3")},
	    {".Rmd",StringToColor("#276DC3")},
	    {".Rproj",StringToColor("#276DC3")},
	    {".jl",StringToColor("#9259a3")},
	    {".vim",StringToColor("#019833")},
	    {".pp",StringToColor("#FFA61A")},
	    {".epp",StringToColor("#FFA61A")},
	    {".scala",StringToColor("#DE3423")},
	    {".sc",StringToColor("#DE3423")},
	    {".iLogicVb",StringToColor("#A63B22")},
	};


		private static Color StringToColor (string str)
		{
			if ( !Color.TryParse (str, out var c) ) {
				ThrowFormatException (str);
			}
			return c.Value;

			[DoesNotReturn]
			static void ThrowFormatException (string s)
			{
				throw new FormatException ($"Failed to parse Color from {s}");
			}
		}
	}
}