#include "Base.h"
#include "ScriptController.h"
#include "FileSystem.h"
#include "lua_FileSystem.h"
#include "lua_Global.h"

namespace gameplay
{

void luaRegister_FileSystem()
{
    ScriptController* sc = ScriptController::getInstance();

    const luaL_Reg lua_members[] = 
    {
        {NULL, NULL}
    };
    const luaL_Reg lua_statics[] = 
    {
        {"fileExists", lua_FileSystem_static_fileExists},
        {"getResourcePath", lua_FileSystem_static_getResourcePath},
        {"loadResourceAliases", lua_FileSystem_static_loadResourceAliases},
        {"readAll", lua_FileSystem_static_readAll},
        {"resolvePath", lua_FileSystem_static_resolvePath},
        {"setResourcePath", lua_FileSystem_static_setResourcePath},
        {NULL, NULL}
    };
    std::vector<std::string> scopePath;

    sc->registerClass("FileSystem", lua_members, NULL, lua_FileSystem__gc, lua_statics, scopePath);
}

static FileSystem* getInstance(lua_State* state)
{
    void* userdata = luaL_checkudata(state, 1, "FileSystem");
    luaL_argcheck(state, userdata != NULL, 1, "'FileSystem' expected.");
    return (FileSystem*)((ScriptController::LuaObject*)userdata)->instance;
}

int lua_FileSystem__gc(lua_State* state)
{
    // Get the number of parameters.
    int paramCount = lua_gettop(state);

    // Attempt to match the parameters to a valid binding.
    switch (paramCount)
    {
        case 1:
        {
            if ((lua_type(state, 1) == LUA_TUSERDATA))
            {
                void* userdata = luaL_checkudata(state, 1, "FileSystem");
                luaL_argcheck(state, userdata != NULL, 1, "'FileSystem' expected.");
                ScriptController::LuaObject* object = (ScriptController::LuaObject*)userdata;
                if (object->owns)
                {
                    FileSystem* instance = (FileSystem*)object->instance;
                    SAFE_DELETE(instance);
                }
                
                return 0;
            }
            else
            {
                lua_pushstring(state, "Failed to match the given parameters to a valid function signature.");
                lua_error(state);
            }
            break;
        }
        default:
        {
            lua_pushstring(state, "Invalid number of parameters (expected 1).");
            lua_error(state);
            break;
        }
    }
    return 0;
}

int lua_FileSystem_static_fileExists(lua_State* state)
{
    // Get the number of parameters.
    int paramCount = lua_gettop(state);

    // Attempt to match the parameters to a valid binding.
    switch (paramCount)
    {
        case 1:
        {
            if ((lua_type(state, 1) == LUA_TSTRING || lua_type(state, 1) == LUA_TNIL))
            {
                // Get parameter 1 off the stack.
                const char* param1 = ScriptController::getInstance()->getString(1, false);

                bool result = FileSystem::fileExists(param1);

                // Push the return value onto the stack.
                lua_pushboolean(state, result);

                return 1;
            }
            else
            {
                lua_pushstring(state, "Failed to match the given parameters to a valid function signature.");
                lua_error(state);
            }
            break;
        }
        default:
        {
            lua_pushstring(state, "Invalid number of parameters (expected 1).");
            lua_error(state);
            break;
        }
    }
    return 0;
}

int lua_FileSystem_static_getResourcePath(lua_State* state)
{
    // Get the number of parameters.
    int paramCount = lua_gettop(state);

    // Attempt to match the parameters to a valid binding.
    switch (paramCount)
    {
        case 0:
        {
            const char* result = FileSystem::getResourcePath();

            // Push the return value onto the stack.
            lua_pushstring(state, result);

            return 1;
            break;
        }
        default:
        {
            lua_pushstring(state, "Invalid number of parameters (expected 0).");
            lua_error(state);
            break;
        }
    }
    return 0;
}

int lua_FileSystem_static_loadResourceAliases(lua_State* state)
{
    // Get the number of parameters.
    int paramCount = lua_gettop(state);

    // Attempt to match the parameters to a valid binding.
    switch (paramCount)
    {
        case 1:
        {
            if ((lua_type(state, 1) == LUA_TSTRING || lua_type(state, 1) == LUA_TNIL))
            {
                // Get parameter 1 off the stack.
                const char* param1 = ScriptController::getInstance()->getString(1, false);

                FileSystem::loadResourceAliases(param1);
                
                return 0;
            }
            else if ((lua_type(state, 1) == LUA_TUSERDATA || lua_type(state, 1) == LUA_TTABLE || lua_type(state, 1) == LUA_TNIL))
            {
                // Get parameter 1 off the stack.
                Properties* param1 = ScriptController::getInstance()->getObjectPointer<Properties>(1, "Properties", false);

                FileSystem::loadResourceAliases(param1);
                
                return 0;
            }
            else
            {
                lua_pushstring(state, "Failed to match the given parameters to a valid function signature.");
                lua_error(state);
            }
            break;
        }
        default:
        {
            lua_pushstring(state, "Invalid number of parameters (expected 1).");
            lua_error(state);
            break;
        }
    }
    return 0;
}

int lua_FileSystem_static_readAll(lua_State* state)
{
    // Get the number of parameters.
    int paramCount = lua_gettop(state);

    // Attempt to match the parameters to a valid binding.
    switch (paramCount)
    {
        case 1:
        {
            if ((lua_type(state, 1) == LUA_TSTRING || lua_type(state, 1) == LUA_TNIL))
            {
                // Get parameter 1 off the stack.
                const char* param1 = ScriptController::getInstance()->getString(1, false);

                const char* result = FileSystem::readAll(param1);

                // Push the return value onto the stack.
                lua_pushstring(state, result);

                return 1;
            }
            else
            {
                lua_pushstring(state, "Failed to match the given parameters to a valid function signature.");
                lua_error(state);
            }
            break;
        }
        case 2:
        {
            if ((lua_type(state, 1) == LUA_TSTRING || lua_type(state, 1) == LUA_TNIL) &&
                (lua_type(state, 2) == LUA_TTABLE || lua_type(state, 2) == LUA_TLIGHTUSERDATA))
            {
                // Get parameter 1 off the stack.
                const char* param1 = ScriptController::getInstance()->getString(1, false);

                // Get parameter 2 off the stack.
                int* param2 = ScriptController::getInstance()->getIntPointer(2);

                const char* result = FileSystem::readAll(param1, param2);

                // Push the return value onto the stack.
                lua_pushstring(state, result);

                return 1;
            }
            else
            {
                lua_pushstring(state, "Failed to match the given parameters to a valid function signature.");
                lua_error(state);
            }
            break;
        }
        default:
        {
            lua_pushstring(state, "Invalid number of parameters (expected 1 or 2).");
            lua_error(state);
            break;
        }
    }
    return 0;
}

int lua_FileSystem_static_resolvePath(lua_State* state)
{
    // Get the number of parameters.
    int paramCount = lua_gettop(state);

    // Attempt to match the parameters to a valid binding.
    switch (paramCount)
    {
        case 1:
        {
            if ((lua_type(state, 1) == LUA_TSTRING || lua_type(state, 1) == LUA_TNIL))
            {
                // Get parameter 1 off the stack.
                const char* param1 = ScriptController::getInstance()->getString(1, false);

                const char* result = FileSystem::resolvePath(param1);

                // Push the return value onto the stack.
                lua_pushstring(state, result);

                return 1;
            }
            else
            {
                lua_pushstring(state, "Failed to match the given parameters to a valid function signature.");
                lua_error(state);
            }
            break;
        }
        default:
        {
            lua_pushstring(state, "Invalid number of parameters (expected 1).");
            lua_error(state);
            break;
        }
    }
    return 0;
}

int lua_FileSystem_static_setResourcePath(lua_State* state)
{
    // Get the number of parameters.
    int paramCount = lua_gettop(state);

    // Attempt to match the parameters to a valid binding.
    switch (paramCount)
    {
        case 1:
        {
            if ((lua_type(state, 1) == LUA_TSTRING || lua_type(state, 1) == LUA_TNIL))
            {
                // Get parameter 1 off the stack.
                const char* param1 = ScriptController::getInstance()->getString(1, false);

                FileSystem::setResourcePath(param1);
                
                return 0;
            }
            else
            {
                lua_pushstring(state, "Failed to match the given parameters to a valid function signature.");
                lua_error(state);
            }
            break;
        }
        default:
        {
            lua_pushstring(state, "Invalid number of parameters (expected 1).");
            lua_error(state);
            break;
        }
    }
    return 0;
}

}