/*
    Images
        background.jpg: https://www.lignaushop.de/images/product_images/popup_images/treppenstufe-buecherregal-fensterbank-eiche-country-rustikal-unbehandelt-wuppertal.JPG
        card_stack.png: https://www.google.de/url?sa=i&url=https%3A%2F%2Fwww.pngegg.com%2Fpt%2Fsearch%3Fq%3Drainha%2Bde%2Bcopas&psig=AOvVaw3wwfk87wAXBxqmdXnoGSfe&ust=1623254731054000&source=images&cd=vfe&ved=0CAIQjRxqFwoTCMjUoaG1iPECFQAAAAAdAAAAABA5
        dice.svg: https://www.svgrepo.com/download/198836/gambler-casino.svg
        sprite.jpg: https://media.istockphoto.com/photos/gray-granite-stone-texture-seamless-square-background-tile-ready-picture-id1096464726
*/
let card;
let answer = null;
let show_card = false;
let diced = false;
let rolled_number = null;

let game = document.getElementById('game');
let app;
let border_card_stack = new PIXI.Graphics();

let game_board_size = 2000;
let max_size = calculate_size();
let sprite_size = Math.floor(game_board_size / 11);

const rolled_number_style = new PIXI.TextStyle({
    fontFamily: 'Arial',
    fontSize: 140,
    fontWeight: 'bold',
    wordWrap: true,
    wordWrapWidth: game_board_size * 0.5 - 20,
});
let rolled_number_text = new PIXI.Text("", rolled_number_style);

// fields
let sprites = [
    new Sprite(9, 9),
    new Sprite(9, 7),
    new Sprite(9, 5),
    new Sprite(9, 3),
    new Sprite(9, 1),
    new Sprite(7, 1),
    new Sprite(5, 1),
    new Sprite(3, 1),
    new Sprite(1, 1),
    new Sprite(1, 3),
    new Sprite(1, 5),
    new Sprite(1, 7),
    new Sprite(1, 9),
    new Sprite(3, 9),
    new Sprite(5, 9),
    new Sprite(7, 9)
];

function start_game() {
    app = new PIXI.Application({
        autoResize: true,
        resolution: 1,
        backgroundAlpha: 0,
        width: max_size / game_board_size,
        height: max_size / game_board_size
    });
    document.getElementById('game').appendChild(app.view);

    sprites.forEach(sprite => app.stage.addChild(sprite.getSprite()));

    // Red border
    let red_border = generate_red_border(new PIXI.Graphics());
    app.stage.addChild(red_border);


    // White circles
    let first_circle = generate_circle(new PIXI.Graphics(), 9, 9, 'yellow', 1);
    app.stage.addChild(first_circle);

    let second_circle = generate_circle(new PIXI.Graphics(), 9, 9, 'blue', 2);
    app.stage.addChild(second_circle);
    
    let third_circle = generate_circle(new PIXI.Graphics(), 9, 9, 'green', 3);
    app.stage.addChild(third_circle);
    
    let fourth_circle = generate_circle(new PIXI.Graphics(), 9, 9, 'red', 4);
    app.stage.addChild(fourth_circle);


    // Card stacks
    let cards_1 = generate_card_stack(PIXI.Sprite.from('/img/card_stack.png'), 3, 3, function () {
        if (!show_card && rolled_number === 1) {
            console.log("1");
            socket.emit('get card', 1);
        }
    });
    app.stage.addChild(cards_1);

    let cards_2 = generate_card_stack(PIXI.Sprite.from('/img/card_stack.png'), 5, 3, function () {
        if (!show_card && rolled_number === 2) {
            console.log("2");
            socket.emit('get card', 2);
        }
    });
    app.stage.addChild(cards_2);

    let cards_3 = generate_card_stack(PIXI.Sprite.from('/img/card_stack.png'), 7, 3, function () {
        if (!show_card && rolled_number === 3) {
            console.log("3");
            socket.emit('get card', 3);
        }
    });
    app.stage.addChild(cards_3);


    // Die
    let diceTexture = PIXI.Texture.from('/img/dice.svg');
    let dice = new PIXI.Sprite(diceTexture);
    dice.x = sprite_size * 7 - sprite_size * 0.2;
    dice.y = sprite_size * 7 - sprite_size * 0.2;
    dice.width = 200;
    dice.height = 200;
    dice.interactive = true;
    dice.buttonMode = true;
    dice.defaultCursor = 'pointer';
    dice.on('pointerdown', function () {
        if (!diced) {
            socket.emit('roll dice');
        }
    });
    app.stage.addChild(dice);

    app.stage.addChild(border_card_stack);


    // Logo
    let logo = PIXI.Sprite.from('/img/logo_2.png');
    logo.x = sprite_size * 3 - sprite_size * 0.2;
    logo.y = sprite_size * 5.5 - sprite_size * 0.2;
    logo.width = sprite_size * 3.5;
    logo.height = sprite_size * 1.5;
    // logo.rotation -= Math.PI / 8;
    app.stage.addChild(logo);

    socket.on('dice', function (randomInt) {
        rolled_number = randomInt;
        diced = true;
        border_card_stack.clear();
        border_card_stack.lineStyle(15, 0x862323, 1);
        border_card_stack.drawRoundedRect(sprite_size * (1 + 2 * rolled_number) - sprite_size * 0.2, sprite_size * 3 - sprite_size * 0.2, sprite_size * 1.5, sprite_size * 3 * 0.72, 10);

        rolled_number_text = new PIXI.Text(rolled_number, rolled_number_style);
        rolled_number_text.x = sprite_size * 7 - sprite_size * 0.2 + dice.width / 2 - rolled_number_text.width / 2;
        rolled_number_text.y = sprite_size * 6 - sprite_size * 0.2;
        app.stage.addChild(rolled_number_text);
    });

    socket.on('card', function (data) {
        let u = data.username;
        let q = data.card.question;
        let a = data.card.answers;
        let d = data.card.difficulty;
        card = new Card(game_board_size, q, a[0], a[1], a[2], a[3], d, u === username);
        card.showCard();
        show_card = true;
    });

    socket.on('card destroyed', function () {
        diced = false;
        show_card = false;
        card.destroyCard();
        rolled_number_text.destroy();
        border_card_stack.clear();
    });

    socket.on('player moved', function(data){
        let player = data.player;
        let position = data.position;
        console.log("player: " + player); // test
        console.log("position: " + position); // test
        let x = 0;
        let y = 0;
        switch (position){
            case 0: x = 9; y = 9; break;
            case 1: x = 9; y = 7; break;
            case 2: x = 9; y = 5; break;
            case 3: x = 9; y = 3; break;
            case 4: x = 9; y = 1; break;
            case 5: x = 7; y = 1; break;
            case 6: x = 5; y = 1; break;
            case 7: x = 3; y = 1; break;
            case 8: x = 1; y = 1; break;
            case 9: x = 1; y = 3; break;
            case 10: x = 1; y = 5; break;
            case 11: x = 1; y = 7; break;
            case 12: x = 1; y = 9; break;
            case 13: x = 3; y = 9; break;
            case 14: x = 5; y = 9; break;
            case 15: x = 7; y = 9; break;
        }
        switch(player){
            case 0:
                first_circle.clear();
                first_circle = generate_circle(new PIXI.Graphics(), y, x, 'yellow', 1);
                app.stage.addChild(first_circle);
                break;
            case 1: 
                second_circle.clear();
                second_circle = generate_circle(new PIXI.Graphics(), y, x, 'blue', 2);
                app.stage.addChild(second_circle);
                break;
            case 2: 
                third_circle.clear();
                third_circle = generate_circle(new PIXI.Graphics(), y, x, 'green', 3);
                app.stage.addChild(third_circle);
                break;
            case 3:  
                fourth_circle.clear();
                fourth_circle = generate_circle(new PIXI.Graphics(), y, x, 'red', 4);
                app.stage.addChild(fourth_circle);
                break;
        }
    });

    resize();
}

function generate_card_stack(sprite, x, y, onclick) {
    sprite.x = sprite_size * x - sprite_size * 0.2;
    sprite.y = sprite_size * y - sprite_size * 0.2;
    sprite.width = sprite_size * 1.5;
    sprite.height = sprite_size * 3 * 0.72;
    sprite.interactive = true;
    sprite.buttonMode = true;
    sprite.defaultCursor = 'pointer';
    sprite.on('pointerdown', onclick);
    return sprite;
}

function generate_red_border(graphics) {
    graphics.lineStyle(sprite_size * 0.10, 0x862323, 1);
    graphics.drawRect(sprite_size * 9 - sprite_size * 0.2, sprite_size * 9 - sprite_size * 0.2, sprite_size * 1.5, sprite_size * 1.5);
    return graphics;
}

function generate_circle(graphics, x, y, color, offset) {
    graphics.lineStyle(0);
    switch (color){
        case 'yellow': graphics.beginFill(0xFFDDA1, 1); break;
        case 'red': graphics.beginFill(0xF47A93, 1); break;
        case 'green': graphics.beginFill(0x6C9A8B, 1); break;
        case 'blue': graphics.beginFill(0x4169E1, 1); break;
    }
    switch(offset){
        case 1: graphics.drawCircle(sprite_size * x - 65 - sprite_size * 0.2 + sprite_size * 0.75, sprite_size * y + 65 - sprite_size * 0.2 + sprite_size * 0.75, sprite_size / 4); break; // upper left
        case 2: graphics.drawCircle(sprite_size * x + 65 - sprite_size * 0.2 + sprite_size * 0.75, sprite_size * y + 65 - sprite_size * 0.2 + sprite_size * 0.75, sprite_size / 4); break; // upper right
        case 3: graphics.drawCircle(sprite_size * x - 65 - sprite_size * 0.2 + sprite_size * 0.75, sprite_size * y - 65 - sprite_size * 0.2 + sprite_size * 0.75, sprite_size / 4); break; // lower left
        case 4: graphics.drawCircle(sprite_size * x + 65 - sprite_size * 0.2 + sprite_size * 0.75, sprite_size * y - 65 - sprite_size * 0.2 + sprite_size * 0.75, sprite_size / 4); break; // lower right
    }
    graphics.endFill();
    return graphics;
}

function calculate_size() {
    let width;
    let height;
    if (game.offsetWidth > window.innerWidth) {
        width = window.innerWidth - document.getElementById('chat').offsetWidth;
    } else {
        width = game.offsetWidth;
    }

    if (game.offsetHeight > window.innerHeight) {
        height = window.innerHeight - document.getElementsByTagName('header')[0].offsetHeight;
    } else {
        height = game.offsetHeight;
    }

    if (width > height) {
        return height;
    } else {
        return width;
    }
}

// Resize
window.addEventListener('resize', resize);

function resize() {
    let size = calculate_size();
    app.stage.scale.set(size / game_board_size, size / game_board_size);

    app.renderer.resize(size, size);
}