window.DefinePanel("GetAlbumArtV2", { author: "T.P Wang" });
include(`${fb.ComponentPath}docs\\Flags.js`);
include(`${fb.ComponentPath}docs\\Helpers.js`);

// Nothing will show until you start playing a new track

let g_img = null;
let ww = 0, wh = 0;

function on_paint(gr) {
    gr.FillSolidRect(0, 0, ww, wh, RGB(255, 255, 255));
    if (!g_img) {
        return;
    }

    // Keep aspect ratio
    let scale_w = ww / g_img.Width;
    let scale_h = wh / g_img.Height;
    let scale = Math.min(scale_w, scale_h);
    let pos_x = 0, pos_y = 0;
    if (scale_w < scale_h) {
        pos_y = (wh - g_img.Height * scale) / 2;
    }
    else if (scale_w > scale_h) {
        pos_x = (ww - g_img.Width * scale) / 2;
    }
    gr.DrawImage(g_img, pos_x, pos_y, g_img.Width * scale, g_img.Height * scale, 0, 0, g_img.Width, g_img.Height);
}

function on_size() {
    ww = window.Width;
    wh = window.Height;
}

function on_playback_new_track(metadb) {
    if (!metadb) {
        return;
    }
    g_img = utils.GetAlbumArtV2(metadb, AlbumArtId.front);
    window.Repaint();
}
