// Copyright © SixtyFPS GmbH <info@slint.dev>
// SPDX-License-Identifier: MIT

struct TileData  {
    image: image,
    image-visible: bool,
    solved: bool,
}

component MemoryTile inherits Rectangle {
    in property <bool> open-curtain;
    in property <bool> solved;
    in property <image> icon;

    callback clicked;

    border-radius: 8px;
    background: root.solved ? #70ff00 : #858585;

    animate background { duration: 800ms; }

    Image {
        source: root.icon;
        width: parent.width - 16px;
        height: parent.height - 16px;
        x: 8px;
        y: 8px;
    }

    // Left curtain
    Rectangle {
        x: 0;
        background: #0025ff;
        border-radius: 4px;
        width: root.open-curtain ? 0px : parent.width / 2 + 4px;
        height: parent.height;
        clip: true;

        animate width { duration: 250ms; easing: ease-in; }

        Image {
            width: root.width - 32px;
            height: root.height - 32px;
            x: 16px;
            y: 16px;
            source: @image-url("icons/tile_logo.png");
        }
    }

    // Right curtain
    right-curtain := Rectangle {
        background: #0025ff;
        border-radius: 4px;
        x: root.open-curtain ? parent.width : parent.width / 2 - 4px;
        width: root.open-curtain ? 0px : parent.width / 2 + 4px;
        height: parent.height;
        clip: true;

        animate width { duration: 250ms; easing: ease-in; }
        animate x { duration: 250ms; easing: ease-in; }

        Image {
            width: root.width - 32px;
            height: root.height - 32px;
            x: right-curtain.width - self.width - 16px;
            y: 16px;
            source: @image-url("icons/tile_logo.png");
        }
    }

    TouchArea {
        clicked => {
            root.clicked();
        }

        width: 100%;
        height: 100%;
    }
}

export component MainWindow inherits Window {
    in property <bool> disable-tiles;
    in property <[TileData]> memory-tiles : [
        { image: @image-url("icons/at.png") },
        { image: @image-url("icons/balance-scale.png") },
        { image: @image-url("icons/bicycle.png") },
        { image: @image-url("icons/bus.png") },
        { image: @image-url("icons/cloud.png") },
        { image: @image-url("icons/cogs.png") },
        { image: @image-url("icons/motorcycle.png") },
        { image: @image-url("icons/video.png") },
    ];

    callback check-if-pair-solved();

    private property <length> tile-size: 80px;
    private property <length> tile-spacing: 10px;
    private property <int> row-count: 4;
    private property <int> column-count: 4;

    // "column_count + 1" and "row_count + 1" are the number of gaps between the tiles.
    width: (root.column-count * root.tile-size) + ((root.column-count + 1) * root.tile-spacing);
    height: (root.row-count * root.tile-size) + ((root.row-count + 1) * root.tile-spacing);
    title: "Memory Game - Slint Demo";

    for tile[i] in root.memory-tiles: MemoryTile {
        clicked => {
            if (!root.disable-tiles) {
                tile.image-visible = true;
                root.check-if-pair-solved();
            }
        }

        x: root.tile-spacing + mod(i, root.column-count) * (root.tile-size + root.tile-spacing);
        y: root.tile-spacing + floor(i / root.row-count) * (root.tile-size + root.tile-spacing);
        width: root.tile-size;
        height: root.tile-size;

        icon: tile.image;

        open-curtain: tile.image-visible || tile.solved;
        solved: tile.solved;
    }
}