/*****************************************************************************************
 *                                                                                       *
 * OpenSpace                                                                             *
 *                                                                                       *
 * Copyright (c) 2014-2020                                                               *
 *                                                                                       *
 * Permission is hereby granted, free of charge, to any person obtaining a copy of this  *
 * software and associated documentation files (the "Software"), to deal in the Software *
 * without restriction, including without limitation the rights to use, copy, modify,    *
 * merge, publish, distribute, sublicense, and/or sell copies of the Software, and to    *
 * permit persons to whom the Software is furnished to do so, subject to the following   *
 * conditions:                                                                           *
 *                                                                                       *
 * The above copyright notice and this permission notice shall be included in all copies *
 * or substantial portions of the Software.                                              *
 *                                                                                       *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED,   *
 * INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A         *
 * PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT    *
 * HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF  *
 * CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE  *
 * OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.                                         *
 ****************************************************************************************/

namespace openspace::assetloader {

/**
 * Adds a Lua function to be called upon asset initialization
 * Usage: void asset.onInitialize(function<void()> initFun)
 */
int onInitialize(lua_State* state) {
    Asset* asset = reinterpret_cast<Asset*>(lua_touserdata(state, lua_upvalueindex(1)));
    return asset->loader()->onInitializeLua(asset);
}

/**
 * Adds a Lua function to be called upon asset deinitialization
 * Usage: void asset.onDeinitialize(function<void()> initFun)
 */
int onDeinitialize(lua_State* state) {
    Asset* asset = reinterpret_cast<Asset*>(lua_touserdata(state, lua_upvalueindex(1)));
    return asset->loader()->onDeinitializeLua(asset);
}

/**
* Adds a Lua function to be called when a dependency link is initialized
* Usage: void asset.onInitialize(function<void()> initFun)
*/
int onInitializeDependency(lua_State* state) {
    Asset* dependant = reinterpret_cast<Asset*>(
        lua_touserdata(state, lua_upvalueindex(1))
    );
    Asset* dependency = reinterpret_cast<Asset*>(
        lua_touserdata(state, lua_upvalueindex(2))
    );
    return dependant->loader()->onInitializeDependencyLua(dependant, dependency);
}

/**
* Adds a Lua function to be called upon asset deinitialization
* Usage: void asset.onDeinitialize(function<void()> initFun)
*/
int onDeinitializeDependency(lua_State* state) {
    Asset* dependant = reinterpret_cast<Asset*>(
        lua_touserdata(state, lua_upvalueindex(1))
    );
    Asset* dependency = reinterpret_cast<Asset*>(
        lua_touserdata(state, lua_upvalueindex(2))
    );
    return dependant->loader()->onDeinitializeDependencyLua(dependant, dependency);
}

/**
 * Requires dependency
 * Gives access to
 *   AssetTable: Exported lua values
 *   Dependency: ...
 * Usage: {AssetTable, Dependency} = asset.import(string assetIdentifier)
 */
int require(lua_State* state) {
    Asset* asset = reinterpret_cast<Asset*>(lua_touserdata(state, lua_upvalueindex(1)));
    return asset->loader()->requireLua(asset);
}

int exists(lua_State* state) {
    Asset* asset = reinterpret_cast<Asset*>(lua_touserdata(state, lua_upvalueindex(1)));
    return asset->loader()->existsLua(asset);
}

int localResource(lua_State* state) {
    Asset* asset = reinterpret_cast<Asset*>(lua_touserdata(state, lua_upvalueindex(1)));
    return asset->loader()->localResourceLua(asset);
}

int syncedResource(lua_State* state) {
    Asset* asset = reinterpret_cast<Asset*>(lua_touserdata(state, lua_upvalueindex(1)));
    return asset->loader()->syncedResourceLua(asset);
}

int exportAsset(lua_State* state) {
    Asset* asset = reinterpret_cast<Asset*>(lua_touserdata(state, lua_upvalueindex(1)));
    return asset->loader()->exportAssetLua(asset);
}

} // namespace openspace::assetloader
