'use strict';

Object.defineProperty(exports, '__esModule', { value: true });

var View = require('../../coord/View.js');
var layout = require('../../util/layout.js');
var bbox = require('../../../../../../zrender@6.0.0/node_modules/zrender/lib/core/bbox.js');
var util = require('../../../../../../zrender@6.0.0/node_modules/zrender/lib/core/util.js');
var CoordinateSystem = require('../../core/CoordinateSystem.js');

function getViewRect(seriesModel, api, aspect) {
  var layoutRef = layout.createBoxLayoutReference(seriesModel, api);
  var option = util.extend(seriesModel.getBoxLayoutParams(), {
    aspect: aspect
  });
  var viewRect = layout.getLayoutRect(option, layoutRef.refContainer);
  return layout.applyPreserveAspect(seriesModel, viewRect, aspect);
}
function createViewCoordSys(ecModel, api) {
  var viewList = [];
  ecModel.eachSeriesByType('graph', function (seriesModel) {
    CoordinateSystem.injectCoordSysByOption({
      targetModel: seriesModel,
      coordSysType: 'view',
      coordSysProvider: createViewCoordSys,
      isDefaultDataCoordSys: true
    });
    function createViewCoordSys() {
      var data = seriesModel.getData();
      var positions = data.mapArray(function (idx) {
        var itemModel = data.getItemModel(idx);
        return [+itemModel.get('x'), +itemModel.get('y')];
      });
      var min = [];
      var max = [];
      bbox.fromPoints(positions, min, max);
      // If width or height is 0
      if (max[0] - min[0] === 0) {
        max[0] += 1;
        min[0] -= 1;
      }
      if (max[1] - min[1] === 0) {
        max[1] += 1;
        min[1] -= 1;
      }
      var aspect = (max[0] - min[0]) / (max[1] - min[1]);
      // FIXME If get view rect after data processed?
      var viewRect = getViewRect(seriesModel, api, aspect);
      // Position may be NaN, use view rect instead
      if (isNaN(aspect)) {
        min = [viewRect.x, viewRect.y];
        max = [viewRect.x + viewRect.width, viewRect.y + viewRect.height];
      }
      var bbWidth = max[0] - min[0];
      var bbHeight = max[1] - min[1];
      var viewCoordSys = new View.default(null, {
        api: api,
        ecModel: ecModel
      });
      viewCoordSys.zoomLimit = seriesModel.get('scaleLimit');
      viewCoordSys.setBoundingRect(min[0], min[1], bbWidth, bbHeight);
      viewCoordSys.setViewRect(viewRect.x, viewRect.y, viewRect.width, viewRect.height);
      // Update roam info
      viewCoordSys.setCenter(seriesModel.get('center'));
      viewCoordSys.setZoom(seriesModel.get('zoom'));
      viewList.push(viewCoordSys);
      return viewCoordSys;
    }
  });
  return viewList;
}

exports.default = createViewCoordSys;
