/*
 *  This file is part of Deliantra clientV.
 *
 *  Copyright (©) 2017 Marek Olszewski <m.olszewski@wit.edu.pl>
 *
 *  Deliantra clientV is free software: you can redistribute it and/or
 *  modify it under the terms of the Affero GNU General Public License as
 *  published by the Free Software Foundation, either version 3 of the
 *  License, or (at your option) any later version.
 *
 *  This program is distributed in the hope that it will be useful,
 *  but WITHOUT ANY WARRANTY; without even the implied warranty of
 *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
 *  GNU General Public License for more details.
 *
 *  You should have received a copy of the Affero GNU General Public Licens
 *  and the GNU General Public License along with this program. If not, see
 *  <http://www.gnu.org/licenses/>.
 *
 *  The authors can be reached via e-mail to <support@deliantra.net>
 */

function CProgressBar (game, foreColor, backColor, width) {
    this.x          = 0;
    this.y          = 0;
    this.width      = width || 800;
    this.height     = 20;
    this.currentVal = parseInt (Math.random () * 100);
    this.maxVal     = 100;
    this.foreColor  = foreColor;
    this.backColor  = backColor;
    this.rotation   = 0;
    this.game       = game;
}
CProgressBar.prototype.draw = function (ctx) {
    ctx.fillStyle = this.foreColor || "blue";
    ctx.fillRect (0, 0, 1, 1);
    var data = ctx.getImageData (0, 0, 1, 1);

    ctx.clearRect (0, 0, 1, 1);
    var r = 255 - data.data[0];
    var g = 255 - data.data[1];
    var b = 255 - data.data[2];

    ctx.fillStyle = this.backColor || "lightblue";
    ctx.fillRect (0, 0, 1, 1);
    data = ctx.getImageData (0, 0, 1, 1);

    ctx.clearRect (0, 0, 1, 1);
    r = parseInt ((r + 255 - data.data[0]) * 0.5);
    g = parseInt ((g + 255 - data.data[1]) * 0.5);
    b = parseInt ((b + 255 - data.data[2]) * 0.5);

    data = null;
    ctx.save ();
    ctx.translate (this.x, this.y);
    var w,descText;

    if (this.percent) {
        ctx.rotate (this.rotation);
        w = Math.min (this.width * this.percent, this.width);

        ctx.fillStyle = this.backColor || "lightblue";
        ctx.fillRect (0, 0, this.width, this.height);
        ctx.fillStyle = this.foreColor || "blue";
        ctx.fillRect (0, 0, w, this.height);
        ctx.strokeStyle = "yellow";
        ctx.strokeRect (0, 0, this.width, this.height);
        descText = "" + this.currentVal + " (" + parseInt (this.percent * 100) + "%)";

        w             = ctx.measureText (descText).width;
        ctx.fillStyle = "rgb(" + r + "," + g + "," + b + ")";
        ctx.fillText (descText, this.width * 0.5 - w * 0.5, 13);
    } else {
        ctx.fillStyle = "rgb(" + r + "," + g + "," + b + ")";
        descText = "" + this.currentVal; // + " (" + parseInt ((this.currentVal / this.maxVal) * 100) + "%)";

        w = ctx.measureText (descText).width;
        ctx.fillText (descText, this.height * 0.5 - w * 0.5, 23);
        descText = "" + this.maxVal;

        w = ctx.measureText (descText).width;
        ctx.fillText (descText, this.height * 0.5 - w * 0.5, -this.width - 20);
        w = Math.min ((this.currentVal / this.maxVal) * this.width, this.width);

        ctx.rotate (this.rotation);
        ctx.fillStyle = this.backColor || "lightblue";
        ctx.fillRect (0, 0, this.width, this.height);
        ctx.fillStyle = this.foreColor || "blue";
        ctx.fillRect (0, 0, w, this.height);
        ctx.strokeStyle = "yellow";
        ctx.strokeRect (0, 0, this.width, this.height);
    }
    ctx.restore ();
};