/* eslint-disable no-var */
/* globals svgEditor, $, DOMParser */
/*
 * ext-shapes.js
 *
 * Licensed under the MIT License
 *
 * Copyright(c) 2010 Christian Tzurcanu
 * Copyright(c) 2010 Alexis Deveria
 *
 */

svgEditor.addExtension('shapes', function () {
  'use strict';
  var currentD, curShapeId;
  var canv = svgEditor.canvas;
  var curShape;
  var startX, startY;
  var svgroot = canv.getRootElem();
  var lastBBox = {};

  // This populates the category list
  var categories = {
    basic: 'Basic',
    object: 'Objects',
    symbol: 'Symbols',
    arrow: 'Arrows',
    flowchart: 'Flowchart',
    animal: 'Animals',
    game: 'Cards & Chess',
    dialog_balloon: 'Dialog balloons',
    electronics: 'Electronics',
    math: 'Mathematical',
    music: 'Music',
    misc: 'Miscellaneous',
    raphael_1: 'raphaeljs.com set 1',
    raphael_2: 'raphaeljs.com set 2'
  };

  var library = {
    basic: {
      data: {
        'heart': 'm150,73c61,-175 300,0 0,225c-300,-225 -61,-400 0,-225z',
        'frame': 'm0,0l300,0l0,300l-300,0zm35,-265l0,230l230,0l0,-230z',
        'donut': 'm1,150l0,0c0,-82.29042 66.70958,-149 149,-149l0,0c39.51724,0 77.41599,15.69816 105.35889,43.64108c27.94293,27.94293 43.64111,65.84165 43.64111,105.35892l0,0c0,82.29041 -66.70958,149 -149,149l0,0c-82.29041,0 -149,-66.70959 -149,-149zm74.5,0l0,0c0,41.1452 33.35481,74.5 74.5,74.5c41.14522,0 74.5,-33.3548 74.5,-74.5c0,-41.1452 -33.3548,-74.5 -74.5,-74.5l0,0c-41.14519,0 -74.5,33.35481 -74.5,74.5z',
        'triangle': 'm1,280.375l149,-260.75l149,260.75z',
        'right_triangle': 'm1,299l0,-298l298,298z',
        'diamond': 'm1,150l149,-149l149,149l-149,149l-149,-149z',
        'pentagon': 'm1.00035,116.97758l148.99963,-108.4053l148.99998,108.4053l-56.91267,175.4042l-184.1741,0l-56.91284,-175.4042z',
        'hexagon': 'm1,149.99944l63.85715,-127.71428l170.28572,0l63.85713,127.71428l-63.85713,127.71428l-170.28572,0l-63.85715,-127.71428z',
        'septagon1': 'm0.99917,191.06511l29.51249,-127.7108l119.48833,-56.83673l119.48836,56.83673l29.51303,127.7108l-82.69087,102.41679l-132.62103,0l-82.69031,-102.41679z',
        'heptagon': 'm1,88.28171l87.28172,-87.28171l123.43653,0l87.28172,87.28171l0,123.43654l-87.28172,87.28172l-123.43653,0l-87.28172,-87.28172l0,-123.43654z',
        'decagon': 'm1,150.00093l28.45646,-88.40318l74.49956,-54.63682l92.08794,0l74.50002,54.63682l28.45599,88.40318l-28.45599,88.40318l-74.50002,54.63681l-92.08794,0l-74.49956,-54.63681l-28.45646,-88.40318z',
        'dodecagon': 'm1,110.07421l39.92579,-69.14842l69.14842,-39.92579l79.85159,0l69.14842,39.92579l39.92578,69.14842l0,79.85159l-39.92578,69.14842l-69.14842,39.92578l-79.85159,0l-69.14842,-39.92578l-39.92579,-69.14842l0,-79.85159z',
        'star_points_5': 'm1,116.58409l113.82668,0l35.17332,-108.13487l35.17334,108.13487l113.82666,0l-92.08755,66.83026l35.17514,108.13487l-92.08759,-66.83208l-92.08757,66.83208l35.17515,-108.13487l-92.08758,-66.83026z',
        'trapezoid': 'm1,299l55.875,-298l186.25001,0l55.87498,298z',
        'arrow_up': 'm1.49805,149.64304l148.50121,-148.00241l148.50121,148.00241l-74.25061,0l0,148.71457l-148.5012,0l0,-148.71457z',
        'vertical_scrool': 'm37.375,261.625l0,-242.9375l0,0c0,-10.32083 8.36669,-18.6875 18.6875,-18.6875l224.25,0c10.32083,0 18.6875,8.36667 18.6875,18.6875c0,10.32081 -8.36667,18.6875 -18.6875,18.6875l-18.6875,0l0,242.9375c0,10.32083 -8.36668,18.6875 -18.6875,18.6875l-224.25,0l0,0c-10.32083,0 -18.6875,-8.36667 -18.6875,-18.6875c0,-10.32083 8.36667,-18.6875 18.6875,-18.6875zm37.375,-261.625l0,0c10.32081,0 18.6875,8.36667 18.6875,18.6875c0,10.32081 -8.36669,18.6875 -18.6875,18.6875c-5.1604,0 -9.34375,-4.18335 -9.34375,-9.34375c0,-5.16041 4.18335,-9.34375 9.34375,-9.34375l18.6875,0m186.875,18.6875l-205.5625,0m-37.375,224.25l0,0c5.1604,0 9.34375,4.18335 9.34375,9.34375c0,5.1604 -4.18335,9.34375 -9.34375,9.34375l18.6875,0m-18.6875,18.6875l0,0c10.32081,0 18.6875,-8.36667 18.6875,-18.6875l0,-18.6875',
        'smiley': 'm68.49886,214.78838q81.06408,55.67332 161.93891,0m-144.36983,-109.9558c0,-8.60432 6.97517,-15.57949 15.57948,-15.57949c8.60431,0 15.57948,6.97517 15.57948,15.57949c0,8.60431 -6.97517,15.57947 -15.57948,15.57947c-8.60431,0 -15.57948,-6.97516 -15.57948,-15.57947m95.83109,0c0,-8.60432 6.97517,-15.57949 15.57948,-15.57949c8.60431,0 15.57947,6.97517 15.57947,15.57949c0,8.60431 -6.97516,15.57947 -15.57947,15.57947c-8.60429,0 -15.57948,-6.97516 -15.57948,-15.57947m-181.89903,44.73038l0,0c0,-82.60133 66.96162,-149.56296 149.56296,-149.56296c82.60135,0 149.56296,66.96162 149.56296,149.56296c0,82.60135 -66.96161,149.56296 -149.56296,149.56296c-82.60133,0 -149.56296,-66.96161 -149.56296,-149.56296zm0,0l0,0c0,-82.60133 66.96162,-149.56296 149.56296,-149.56296c82.60135,0 149.56296,66.96162 149.56296,149.56296c0,82.60135 -66.96161,149.56296 -149.56296,149.56296c-82.60133,0 -149.56296,-66.96161 -149.56296,-149.56296z',
        'left_braket': 'm174.24565,298.5c-13.39009,0 -24.24489,-1.80908 -24.24489,-4.04065l0,-140.4187c0,-2.23158 -10.85481,-4.04065 -24.2449,-4.04065l0,0c13.39009,0 24.2449,-1.80907 24.2449,-4.04065l0,-140.4187l0,0c0,-2.23159 10.8548,-4.04066 24.24489,-4.04066',
        'uml_actor': 'm40.5,100l219,0m-108.99991,94.00006l107,105m-107.00009,-106.00006l-100,106m99.5,-231l0,125m33.24219,-158.75781c0,18.35916 -14.88303,33.24219 -33.24219,33.24219c-18.35916,0 -33.2422,-14.88303 -33.2422,-33.24219c0.00002,-18.35915 14.88304,-33.24219 33.2422,-33.24219c18.35916,0 33.24219,14.88304 33.24219,33.24219z',
        'dialog_balloon_1': 'm0.99786,35.96579l0,0c0,-19.31077 15.28761,-34.96524 34.14583,-34.96524l15.52084,0l0,0l74.50001,0l139.68748,0c9.05606,0 17.74118,3.68382 24.14478,10.24108c6.40356,6.55726 10.00107,15.45081 10.00107,24.72416l0,87.41311l0,0l0,52.44785l0,0c0,19.31078 -15.2876,34.96524 -34.14584,34.96524l-139.68748,0l-97.32507,88.90848l22.82506,-88.90848l-15.52084,0c-18.85822,0 -34.14583,-15.65446 -34.14583,-34.96524l0,0l0,-52.44785l0,0z',
        'cloud': 'm182.05086,34.31005c-0.64743,0.02048 -1.27309,0.07504 -1.92319,0.13979c-10.40161,1.03605 -19.58215,7.63722 -24.24597,17.4734l-2.47269,7.44367c0.53346,-2.57959 1.35258,-5.08134 2.47269,-7.44367c-8.31731,-8.61741 -19.99149,-12.59487 -31.52664,-10.72866c-11.53516,1.8662 -21.55294,9.3505 -27.02773,20.19925c-15.45544,-9.51897 -34.72095,-8.94245 -49.62526,1.50272c-14.90431,10.44516 -22.84828,28.93916 -20.43393,47.59753l1.57977,7.58346c-0.71388,-2.48442 -1.24701,-5.01186 -1.57977,-7.58346l-0.2404,0.69894c-12.95573,1.4119 -23.58103,11.46413 -26.34088,24.91708c-2.75985,13.45294 2.9789,27.25658 14.21789,34.21291l17.54914,4.26352c-6.1277,0.50439 -12.24542,-0.9808 -17.54914,-4.26352c-8.66903,9.71078 -10.6639,24.08736 -4.94535,35.96027c5.71854,11.87289 17.93128,18.70935 30.53069,17.15887l7.65843,-2.02692c-2.46413,1.0314 -5.02329,1.70264 -7.65843,2.02692c7.15259,13.16728 19.01251,22.77237 32.93468,26.5945c13.92217,3.82214 28.70987,1.56322 41.03957,-6.25546c10.05858,15.86252 27.91113,24.19412 45.81322,21.38742c17.90208,-2.8067 32.66954,-16.26563 37.91438,-34.52742l1.82016,-10.20447c-0.27254,3.46677 -0.86394,6.87508 -1.82016,10.20447c12.31329,8.07489 27.80199,8.52994 40.52443,1.18819c12.72244,-7.34175 20.6609,-21.34155 20.77736,-36.58929l-4.56108,-22.7823l-17.96776,-15.41455c13.89359,8.70317 22.6528,21.96329 22.52884,38.19685c16.5202,0.17313 30.55292,-13.98268 36.84976,-30.22897c6.29684,-16.24631 3.91486,-34.76801 -6.2504,-48.68089c4.21637,-10.35873 3.96622,-22.14172 -0.68683,-32.29084c-4.65308,-10.14912 -13.23602,-17.69244 -23.55914,-20.65356c-2.31018,-13.45141 -11.83276,-24.27162 -24.41768,-27.81765c-12.58492,-3.54603 -25.98557,0.82654 -34.41142,11.25287l-5.11707,8.63186c1.30753,-3.12148 3.01521,-6.03101 5.11707,-8.63186c-5.93959,-8.19432 -15.2556,-12.8181 -24.96718,-12.51096z',
        'cylinder': 'm299.0007,83.77844c0,18.28676 -66.70958,33.11111 -149.00002,33.11111m149.00002,-33.11111l0,0c0,18.28676 -66.70958,33.11111 -149.00002,33.11111c-82.29041,0 -148.99997,-14.82432 -148.99997,-33.11111m0,0l0,0c0,-18.28674 66.70956,-33.1111 148.99997,-33.1111c82.29044,0 149.00002,14.82436 149.00002,33.1111l0,132.44449c0,18.28674 -66.70958,33.11105 -149.00002,33.11105c-82.29041,0 -148.99997,-14.82431 -148.99997,-33.11105z',
        'arrow_u_turn': 'm1.00059,299.00055l0,-167.62497l0,0c0,-72.00411 58.37087,-130.37499 130.375,-130.37499l0,0l0,0c34.57759,0 67.73898,13.7359 92.18906,38.18595c24.45006,24.45005 38.18593,57.61144 38.18593,92.18904l0,18.625l37.24997,0l-74.49995,74.50002l-74.50002,-74.50002l37.25,0l0,-18.625c0,-30.8589 -25.0161,-55.87498 -55.87498,-55.87498l0,0l0,0c-30.85892,0 -55.875,25.01608 -55.875,55.87498l0,167.62497z',
        'arrow_left_up': 'm0.99865,224.5l74.50004,-74.5l0,37.25l111.74991,0l0,-111.75l-37.25,0l74.5,-74.5l74.5,74.5l-37.25,0l0,186.25l-186.24989,0l0,37.25l-74.50005,-74.5z',
        'maximize': 'm1.00037,150.34581l55.30305,-55.30267l0,27.65093l22.17356,0l0,-44.21833l44.21825,0l0,-22.17357l-27.65095,0l55.30267,-55.30292l55.3035,55.30292l-27.65175,0l0,22.17357l44.21835,0l0,44.21833l22.17357,0l0,-27.65093l55.30345,55.30267l-55.30345,55.3035l0,-27.65175l-22.17357,0l0,44.21834l-44.21835,0l0,22.17355l27.65175,0l-55.3035,55.30348l-55.30267,-55.30348l27.65095,0l0,-22.17355l-44.21825,0l0,-44.21834l-22.17356,0l0,27.65175l-55.30305,-55.3035z',
        'cross': 'm0.99844,99.71339l98.71494,0l0,-98.71495l101.26279,0l0,98.71495l98.71495,0l0,101.2628l-98.71495,0l0,98.71494l-101.26279,0l0,-98.71494l-98.71494,0z',
        'plaque': 'm-0.00197,49.94376l0,0c27.5829,0 49.94327,-22.36036 49.94327,-49.94327l199.76709,0l0,0c0,27.5829 22.36037,49.94327 49.94325,49.94327l0,199.7671l0,0c-27.58289,0 -49.94325,22.36034 -49.94325,49.94325l-199.76709,0c0,-27.58292 -22.36037,-49.94325 -49.94327,-49.94325z',
        'page': 'm249.3298,298.99744l9.9335,-39.73413l39.73413,-9.93355l-49.66763,49.66768l-248.33237,0l0,-298.00001l298.00001,0l0,248.33234'

      },
      buttons: []
    }
  };

  var curLib = library.basic;
  var modeId = 'shapelib';
  var startClientPos = {};

  function loadIcons () {
    $('#shape_buttons').empty().append(curLib.buttons);
  }

  function makeButtons (cat, shapes) {
    var size = curLib.size || 300;
    var fill = curLib.fill || false;
    var off = size * 0.05;
    var vb = [-off, -off, size + off * 2, size + off * 2].join(' ');
    var stroke = fill ? 0 : (size / 30);
    var shapeIcon = new DOMParser().parseFromString(
      '<svg xmlns="http://www.w3.org/2000/svg"><svg viewBox="' + vb + '"><path fill="' + (fill ? '#333' : 'none') + '" stroke="#000" stroke-width="' + stroke + '" /></svg></svg>',
      'text/xml');

    var width = 24;
    var height = 24;
    shapeIcon.documentElement.setAttribute('width', width);
    shapeIcon.documentElement.setAttribute('height', height);
    var svgElem = $(document.importNode(shapeIcon.documentElement, true));

    var data = shapes.data;

    curLib.buttons = [];
    var id;
    for (id in data) {
      var pathD = data[id];
      var icon = svgElem.clone();
      icon.find('path').attr('d', pathD);

      var iconBtn = icon.wrap('<div class="tool_button">').parent().attr({
        id: modeId + '_' + id,
        title: id
      });
      // Store for later use
      curLib.buttons.push(iconBtn[0]);
    }
  }

  function loadLibrary (catId) {
    var lib = library[catId];

    if (!lib) {
      $('#shape_buttons').html('Loading...');
      $.getJSON(svgEditor.curConfig.extPath + 'shapelib/' + catId + '.json', function (result) {
        curLib = library[catId] = {
          data: result.data,
          size: result.size,
          fill: result.fill
        };
        makeButtons(catId, result);
        loadIcons();
      });
      return;
    }
    curLib = lib;
    if (!lib.buttons.length) { makeButtons(catId, lib); }
    loadIcons();
  }

  return {
    svgicons: svgEditor.curConfig.extPath + 'ext-shapes.xml',
    buttons: [{
      id: 'tool_shapelib',
      type: 'mode_flyout', // _flyout
      position: 6,
      title: 'Shape library',
      events: {
        click: function () {
          canv.setMode(modeId);
        }
      }
    }],
    callback: function () {
      $('<style>').text(
        '#shape_buttons {' +
        'overflow: auto;' +
        'width: 180px;' +
        'max-height: 300px;' +
        'display: table-cell;' +
        'vertical-align: middle;' +
      '}' +
      '#shape_cats {' +
        'min-width: 110px;' +
        'display: table-cell;' +
        'vertical-align: middle;' +
        'height: 300px;' +
      '}' +
      '#shape_cats > div {' +
        'line-height: 1em;' +
        'padding: .5em;' +
        'border:1px solid #B0B0B0;' +
        'background: #E8E8E8;' +
        'margin-bottom: -1px;' +
      '}' +
      '#shape_cats div:hover {' +
        'background: #FFFFCC;' +
      '}' +
      '#shape_cats div.current {' +
        'font-weight: bold;' +
      '}').appendTo('head');

      var btnDiv = $('<div id="shape_buttons">');
      $('#tools_shapelib > *').wrapAll(btnDiv);

      var shower = $('#tools_shapelib_show');

      loadLibrary('basic');

      // Do mouseup on parent element rather than each button
      $('#shape_buttons').mouseup(function (evt) {
        var btn = $(evt.target).closest('div.tool_button');

        if (!btn.length) { return; }

        var copy = btn.children().clone();
        shower.children(':not(.flyout_arrow_horiz)').remove();
        shower
          .append(copy)
          .attr('data-curopt', '#' + btn[0].id) // This sets the current mode
          .mouseup();
        canv.setMode(modeId);

        curShapeId = btn[0].id.substr((modeId + '_').length);
        currentD = curLib.data[curShapeId];

        $('.tools_flyout').fadeOut();
      });

      var shapeCats = $('<div id="shape_cats">');
      var catStr = '';

      $.each(categories, function (id, label) {
        catStr += '<div data-cat=' + id + '>' + label + '</div>';
      });

      shapeCats.html(catStr).children().bind('mouseup', function () {
        var catlink = $(this);
        catlink.siblings().removeClass('current');
        catlink.addClass('current');

        loadLibrary(catlink.attr('data-cat'));
        // Get stuff
        return false;
      });

      shapeCats.children().eq(0).addClass('current');

      $('#tools_shapelib').append(shapeCats);

      shower.mouseup(function () {
        canv.setMode(currentD ? modeId : 'select');
      });
      $('#tool_shapelib').remove();

      var h = $('#tools_shapelib').height();
      $('#tools_shapelib').css({
        'margin-top': -(h / 2 - 15),
        'margin-left': 3
      });
    },
    mouseDown: function (opts) {
      var mode = canv.getMode();
      if (mode !== modeId) { return; }

      startX = opts.start_x;
      var x = startX;
      startY = opts.start_y;
      var y = startY;
      var curStyle = canv.getStyle();

      startClientPos.x = opts.event.clientX;
      startClientPos.y = opts.event.clientY;

      curShape = canv.addSvgElementFromJson({
        'element': 'path',
        'curStyles': true,
        'attr': {
          'd': currentD,
          'id': canv.getNextId(),
          'opacity': curStyle.opacity / 2,
          'style': 'pointer-events:none'
        }
      });

      // Make sure shape uses absolute values
      if (/[a-z]/.test(currentD)) {
        currentD = curLib.data[curShapeId] = canv.pathActions.convertPath(curShape);
        curShape.setAttribute('d', currentD);
        canv.pathActions.fixEnd(curShape);
      }
      curShape.setAttribute('transform', 'translate(' + x + ',' + y + ') scale(0.005) translate(' + -x + ',' + -y + ')');

      canv.recalculateDimensions(curShape);

      /* var tlist = */ canv.getTransformList(curShape);

      lastBBox = curShape.getBBox();

      return {
        started: true
      };
    },
    mouseMove: function (opts) {
      var mode = canv.getMode();
      if (mode !== modeId) { return; }

      var zoom = canv.getZoom();
      var evt = opts.event;

      var x = opts.mouse_x / zoom;
      var y = opts.mouse_y / zoom;

      var tlist = canv.getTransformList(curShape),
        box = curShape.getBBox(),
        left = box.x, top = box.y, width = box.width,
        height = box.height;
      var dx = (x - startX), dy = (y - startY);

      var newbox = {
        'x': Math.min(startX, x),
        'y': Math.min(startY, y),
        'width': Math.abs(x - startX),
        'height': Math.abs(y - startY)
      };

      var tx = 0, ty = 0,
        sy = height ? (height + dy) / height : 1,
        sx = width ? (width + dx) / width : 1;

      sx = (newbox.width / lastBBox.width) || 1;
      sy = (newbox.height / lastBBox.height) || 1;

      // Not perfect, but mostly works...
      if (x < startX) {
        tx = lastBBox.width;
      }
      if (y < startY) { ty = lastBBox.height; }

      // update the transform list with translate,scale,translate
      var translateOrigin = svgroot.createSVGTransform(),
        scale = svgroot.createSVGTransform(),
        translateBack = svgroot.createSVGTransform();

      translateOrigin.setTranslate(-(left + tx), -(top + ty));
      if (!evt.shiftKey) {
        var max = Math.min(Math.abs(sx), Math.abs(sy));

        sx = max * (sx < 0 ? -1 : 1);
        sy = max * (sy < 0 ? -1 : 1);
      }
      scale.setScale(sx, sy);

      translateBack.setTranslate(left + tx, top + ty);
      tlist.appendItem(translateBack);
      tlist.appendItem(scale);
      tlist.appendItem(translateOrigin);

      canv.recalculateDimensions(curShape);

      lastBBox = curShape.getBBox();
    },
    mouseUp: function (opts) {
      var mode = canv.getMode();
      if (mode !== modeId) { return; }

      var keepObject = (opts.event.clientX !== startClientPos.x && opts.event.clientY !== startClientPos.y);

      return {
        keep: keepObject,
        element: curShape,
        started: false
      };
    }
  };
});