var zrUtil = require("zrender/lib/core/util");

var graphic = require("../../util/graphic");

var AxisBuilder = require("./AxisBuilder");

var AxisView = require("./AxisView");

var cartesianAxisHelper = require("./cartesianAxisHelper");

var ifIgnoreOnTick = AxisBuilder.ifIgnoreOnTick;
var getInterval = AxisBuilder.getInterval;
var axisBuilderAttrs = ['axisLine', 'axisTickLabel', 'axisName'];
var selfBuilderAttrs = ['splitArea', 'splitLine']; // function getAlignWithLabel(model, axisModel) {
//     var alignWithLabel = model.get('alignWithLabel');
//     if (alignWithLabel === 'auto') {
//         alignWithLabel = axisModel.get('axisTick.alignWithLabel');
//     }
//     return alignWithLabel;
// }

var CartesianAxisView = AxisView.extend({
  type: 'cartesianAxis',
  axisPointerClass: 'CartesianAxisPointer',

  /**
   * @override
   */
  render: function (axisModel, ecModel, api, payload) {
    this.group.removeAll();
    var oldAxisGroup = this._axisGroup;
    this._axisGroup = new graphic.Group();
    this.group.add(this._axisGroup);

    if (!axisModel.get('show')) {
      return;
    }

    var gridModel = axisModel.getCoordSysModel();
    var layout = cartesianAxisHelper.layout(gridModel, axisModel);
    var axisBuilder = new AxisBuilder(axisModel, layout);
    zrUtil.each(axisBuilderAttrs, axisBuilder.add, axisBuilder);

    this._axisGroup.add(axisBuilder.getGroup());

    zrUtil.each(selfBuilderAttrs, function (name) {
      if (axisModel.get(name + '.show')) {
        this['_' + name](axisModel, gridModel, layout.labelInterval);
      }
    }, this);
    graphic.groupTransition(oldAxisGroup, this._axisGroup, axisModel);
    CartesianAxisView.superCall(this, 'render', axisModel, ecModel, api, payload);
  },

  /**
   * @param {module:echarts/coord/cartesian/AxisModel} axisModel
   * @param {module:echarts/coord/cartesian/GridModel} gridModel
   * @param {number|Function} labelInterval
   * @private
   */
  _splitLine: function (axisModel, gridModel, labelInterval) {
    var axis = axisModel.axis;

    if (axis.scale.isBlank()) {
      return;
    }

    var splitLineModel = axisModel.getModel('splitLine');
    var lineStyleModel = splitLineModel.getModel('lineStyle');
    var lineColors = lineStyleModel.get('color');
    var lineInterval = getInterval(splitLineModel, labelInterval);
    lineColors = zrUtil.isArray(lineColors) ? lineColors : [lineColors];
    var gridRect = gridModel.coordinateSystem.getRect();
    var isHorizontal = axis.isHorizontal();
    var lineCount = 0;
    var ticksCoords = axis.getTicksCoords();
    var ticks = axis.scale.getTicks();
    var showMinLabel = axisModel.get('axisLabel.showMinLabel');
    var showMaxLabel = axisModel.get('axisLabel.showMaxLabel');
    var p1 = [];
    var p2 = []; // Simple optimization
    // Batching the lines if color are the same

    var lineStyle = lineStyleModel.getLineStyle();

    for (var i = 0; i < ticksCoords.length; i++) {
      if (ifIgnoreOnTick(axis, i, lineInterval, ticksCoords.length, showMinLabel, showMaxLabel)) {
        continue;
      }

      var tickCoord = axis.toGlobalCoord(ticksCoords[i]);

      if (isHorizontal) {
        p1[0] = tickCoord;
        p1[1] = gridRect.y;
        p2[0] = tickCoord;
        p2[1] = gridRect.y + gridRect.height;
      } else {
        p1[0] = gridRect.x;
        p1[1] = tickCoord;
        p2[0] = gridRect.x + gridRect.width;
        p2[1] = tickCoord;
      }

      var colorIndex = lineCount++ % lineColors.length;

      this._axisGroup.add(new graphic.Line(graphic.subPixelOptimizeLine({
        anid: 'line_' + ticks[i],
        shape: {
          x1: p1[0],
          y1: p1[1],
          x2: p2[0],
          y2: p2[1]
        },
        style: zrUtil.defaults({
          stroke: lineColors[colorIndex]
        }, lineStyle),
        silent: true
      })));
    }
  },

  /**
   * @param {module:echarts/coord/cartesian/AxisModel} axisModel
   * @param {module:echarts/coord/cartesian/GridModel} gridModel
   * @param {number|Function} labelInterval
   * @private
   */
  _splitArea: function (axisModel, gridModel, labelInterval) {
    var axis = axisModel.axis;

    if (axis.scale.isBlank()) {
      return;
    }

    var splitAreaModel = axisModel.getModel('splitArea');
    var areaStyleModel = splitAreaModel.getModel('areaStyle');
    var areaColors = areaStyleModel.get('color');
    var gridRect = gridModel.coordinateSystem.getRect();
    var ticksCoords = axis.getTicksCoords();
    var ticks = axis.scale.getTicks();
    var prevX = axis.toGlobalCoord(ticksCoords[0]);
    var prevY = axis.toGlobalCoord(ticksCoords[0]);
    var count = 0;
    var areaInterval = getInterval(splitAreaModel, labelInterval);
    var areaStyle = areaStyleModel.getAreaStyle();
    areaColors = zrUtil.isArray(areaColors) ? areaColors : [areaColors];
    var showMinLabel = axisModel.get('axisLabel.showMinLabel');
    var showMaxLabel = axisModel.get('axisLabel.showMaxLabel');

    for (var i = 1; i < ticksCoords.length; i++) {
      if (ifIgnoreOnTick(axis, i, areaInterval, ticksCoords.length, showMinLabel, showMaxLabel) && i < ticksCoords.length - 1) {
        continue;
      }

      var tickCoord = axis.toGlobalCoord(ticksCoords[i]);
      var x;
      var y;
      var width;
      var height;

      if (axis.isHorizontal()) {
        x = prevX;
        y = gridRect.y;
        width = tickCoord - x;
        height = gridRect.height;
      } else {
        x = gridRect.x;
        y = prevY;
        width = gridRect.width;
        height = tickCoord - y;
      }

      var colorIndex = count++ % areaColors.length;

      this._axisGroup.add(new graphic.Rect({
        anid: 'area_' + ticks[i],
        shape: {
          x: x,
          y: y,
          width: width,
          height: height
        },
        style: zrUtil.defaults({
          fill: areaColors[colorIndex]
        }, areaStyle),
        silent: true
      }));

      prevX = x + width;
      prevY = y + height;
    }
  }
});
CartesianAxisView.extend({
  type: 'xAxis'
});
CartesianAxisView.extend({
  type: 'yAxis'
});