const { mainWindow, ipcRenderer, ipcMain, dialog } = require( 'electron' );

const r_fsys = require( 'fs' );

const version_str = '2.0.7';

var open_menu_name = '';

const flash_container = document.getElementById( 'flash_container' );

/*
 * window_resize is used to resize
 * the container element of flash content
 * container to fit under the menu bar.
*/
function window_resize(){
    flash_container.style.height = window.innerHeight - 35;
}

/*
 * set_container_content function
 * is used to set the flash container
 * element's flash content
*/
function set_container_content( flash_url ){
    if ( flash_url[flash_url.indexOf('.swf') + 4] === undefined ){
        document.getElementById( 'flash_container' ).style.height = window.innerHeight - 35;
        document.getElementById( 'flash_container' ).innerHTML = '<embed src="' + flash_url + '" type="application/x-shockwave-flash" width="100%" height="100%" style="position: relative; top: 0px; left: 0px;"></embed>';
    }
    else
    {
        alert( 'Error: That doesn\'t look like a swf link because it doesn\'t end in .swf' );
    }
}

/*
 * open_url is used to open file/url
*/
function open_url( runner_url ){
    try {
        if ( runner_url === undefined || runner_url === null || runner_url === '' )
            throw new Error( 'Link must not be empty' );
        if ( !runner_url.startsWith('http://') && !runner_url.startsWith('https://') && !runner_url.startsWith('file:///') )
            throw new Error( 'Invalid link' );
        if ( !runner_url.endsWith('.swf') )
            throw new Error( 'Invalid swf file link or location' );
        if ( runner_url.startsWith('file:///') ){
            if ( !r_fsys.existsSync(runner_url.replace('file:///', '')) )
                throw new Error( 'File doesn\'t exist' );
        }
        if ( runner_url[runner_url.indexOf('.swf') + 4] === undefined ){
            set_container_content( runner_url );
            if ( document.getElementById( 'file_opener' ).style.display === 'block' )
                document.getElementById( 'file_opener' ).style.display = 'none';
            if ( document.getElementById( 'file_opener_bg' ).style.display === 'block' );
                document.getElementById( 'file_opener_bg' ).style.display = 'none';
            if ( document.getElementById( 'game_selector' ).style.display === 'block' )
                document.getElementById( 'game_selector' ).style.display = 'none';
            if ( document.getElementById( 'games_list' ).style.display === 'block' )
                document.getElementById( 'games_list' ).style.display = 'none';
        }
        else
        {
            alert( 'Error: that doesn\'t look like a swf link because it doesn\'t end in .swf' );
        }
        runner_url = undefined;
    } catch( err_c ){
        alert( 'Error:\n' + err_c );
    }
}

/*
 * open_modal opens the file/url opener dialog
*/
function open_modal(){
    open_menu_name = 'url_opener';
    document.getElementById( 'file_opener_bg' ).style.display = 'block';
    document.getElementById( 'file_opener' ).style.display = 'block';
}

/*
 * close_modal closes the file/url opener dialog
*/
function close_modal(){
    open_menu_name = '';
    document.getElementById( 'file_opener' ).style.display = 'none';
    document.getElementById( 'file_opener_bg' ).style.display = 'none';
}

/*
 * open_game_selector_menu opens the easy to use
 * game selection menu
*/
function open_game_selector_menu(){
    open_menu_name = 'game_selector';
    document.getElementById( 'file_opener_bg' ).style.display = 'block';
    document.getElementById( 'game_selector' ).style.display = 'block';
    document.getElementById( 'games_list' ).style.display = 'block';
}

/*
 * close_game_selector_menu closes the easy to use
 * game selection menu
*/
function close_game_selector_menu(){
    open_menu_name = '';
    document.getElementById( 'file_opener_bg' ).style.display = 'none';
    document.getElementById( 'game_selector' ).style.display = 'none';
    document.getElementById( 'games_list' ).style.display = 'none';
}

/*
 * create_games_list creates the easy to use
 * list of games received from JSON file on server
*/
function create_games_list( parsed_json ){
    var g_list = document.getElementById( 'games_list' );
    g_list.innerHTML = '';
    var game_index = null;
    for ( game_index in parsed_json.games_menu )
        if ( parsed_json.games_menu[game_index].game_name !== undefined && parsed_json.games_menu[game_index].game_name !== null && parsed_json.games_menu[game_index].game_name !== '' && typeof parsed_json.games_menu[game_index].game_name === 'string' && parsed_json.games_menu[game_index].game_swf !== undefined && parsed_json.games_menu[game_index].game_swf !== null && parsed_json.games_menu[game_index].game_swf !== '' && typeof parsed_json.games_menu[game_index].game_swf === 'string' )
            g_list.innerHTML += '<a href="#" onclick="open_url(\'' + parsed_json.games_menu[game_index].game_swf + '\');" class="modal_game_selector_menu_item">' + parsed_json.games_menu[game_index].game_name + '</a>';
    game_index = undefined;
    g_list = undefined;
}

/*
 * flashrunner_get_game_list gets the list of games
 * from JSON file for the easy to use game selection menu
*/
function flashrunner_get_game_list(){
    try {
        if ( r_fsys.existsSync('./flashrunner_game_list.json') ){
            var game_list_json = r_fsys.readFileSync( './flashrunner_game_list.json', {
                encoding: 'utf8',
                flag: 'r'
            } );
            var games_list_parsed = JSON.parse( game_list_json );
            create_games_list( games_list_parsed );
            games_list_parsed = undefined;
            game_list_json = undefined;
        }
        else
        {
            document.getElementById( 'game_list' ).innerHTML = '<span class="wtext">Error: could not find games list file</span>';
        }
    } catch ( err_m ){
        document.getElementById( 'game_list' ).innerHTML = '<span class="wtext">Error loading games list</span>';
    }
}

/*
 * flashrunner_about is the about dialog, simple
*/
function flashrunner_about(){
    alert( 'FlashRunner by VoidNet\nVersion: ' + version_str + '\n\nFlash copyright:\n\u00A9 Adobe Systems Incorporated and its licensors. All rights reserved.' );
}

document.getElementById( 'menu_open' ).addEventListener( 'click', function(){
    open_modal();
} );

document.getElementById( 'menu_about' ).addEventListener( 'click', function(){
    flashrunner_about();
} );

document.getElementById( 'modal_run_btn' ).addEventListener( 'click', function(){
    if ( document.getElementById('flash_file').value !== undefined && document.getElementById('flash_file').value !== null && document.getElementById('flash_file').value !== '' ){
        if ( document.getElementById('flash_file').value.startsWith('http://') || document.getElementById('flash_file').value.startsWith('https://') )
            open_url( document.getElementById('flash_file').value );
        else
            open_url( 'file:///' + document.getElementById('flash_file').value );
	}
    else
    {
        alert( 'Flash file URL or path can\'t be empty' );
	}
} );

document.getElementById( 'menu_game_selector' ).addEventListener( 'click', function(){
    open_game_selector_menu();
} );

document.getElementById( 'menu_steamgroup' ).addEventListener( 'click', function(){
    ipcRenderer.send( 'asyncmsg', 'OPEN_URL https://steamcommunity.com/groups/VoidNet_' );
} );

window.addEventListener( 'resize', window_resize );

document.getElementById( 'menu_exit' ).addEventListener( 'click', function(){
    ipcRenderer.send( 'asyncmsg', 'APP_SHUTDOWN' );
} );

document.getElementById( 'close_flash_opener' ).addEventListener( 'click', function(){
    switch ( open_menu_name ){
        case 'url_opener':
            close_modal();
        break;
        case 'game_selector':
            close_game_selector_menu();
        break;
        default:
        break;
    }
} );

document.addEventListener( 'contextmenu', function(ctx_event){
    ctx_event.preventDefault();
} );

flashrunner_get_game_list();