"use strict";

var _interopRequireDefault = require("@babel/runtime/helpers/interopRequireDefault");

var _interopRequireWildcard = require("@babel/runtime/helpers/interopRequireWildcard");

Object.defineProperty(exports, "__esModule", {
  value: true
});
exports["default"] = void 0;

var THREE = _interopRequireWildcard(require("three"));

var _Feature = require("../Core/Feature");

var _Extent = _interopRequireDefault(require("../Core/Geographic/Extent"));

var _Coordinates = _interopRequireDefault(require("../Core/Geographic/Coordinates"));

var _extent = new _Extent["default"]('EPSG:4326', [0, 0, 0, 0]);

var svg = document.createElementNS('http://www.w3.org/2000/svg', 'svg');
var matrix = svg.createSVGMatrix();

function drawPolygon(ctx, vertices) {
  var indices = arguments.length > 2 && arguments[2] !== undefined ? arguments[2] : [{
    offset: 0,
    count: 1
  }];
  var style = arguments.length > 3 && arguments[3] !== undefined ? arguments[3] : {};
  var size = arguments.length > 4 ? arguments[4] : undefined;
  var extent = arguments.length > 5 ? arguments[5] : undefined;
  var invCtxScale = arguments.length > 6 ? arguments[6] : undefined;
  var canBeFilled = arguments.length > 7 ? arguments[7] : undefined;

  if (vertices.length === 0) {
    return;
  }

  if (style.length) {
    var _iteratorNormalCompletion = true;
    var _didIteratorError = false;
    var _iteratorError = undefined;

    try {
      for (var _iterator = style[Symbol.iterator](), _step; !(_iteratorNormalCompletion = (_step = _iterator.next()).done); _iteratorNormalCompletion = true) {
        var s = _step.value;

        _drawPolygon(ctx, vertices, indices, s, size, extent, invCtxScale, canBeFilled);
      }
    } catch (err) {
      _didIteratorError = true;
      _iteratorError = err;
    } finally {
      try {
        if (!_iteratorNormalCompletion && _iterator["return"] != null) {
          _iterator["return"]();
        }
      } finally {
        if (_didIteratorError) {
          throw _iteratorError;
        }
      }
    }
  } else {
    _drawPolygon(ctx, vertices, indices, style, size, extent, invCtxScale, canBeFilled);
  }
}

function _drawPolygon(ctx, vertices, indices, style, size, extent, invCtxScale, canBeFilled) {
  // build contour
  ctx.beginPath();
  var _iteratorNormalCompletion2 = true;
  var _didIteratorError2 = false;
  var _iteratorError2 = undefined;

  try {
    for (var _iterator2 = indices[Symbol.iterator](), _step2; !(_iteratorNormalCompletion2 = (_step2 = _iterator2.next()).done); _iteratorNormalCompletion2 = true) {
      var indice = _step2.value;

      if (indice.extent && indice.extent.intersectsExtent(extent)) {
        var offset = indice.offset * size;
        var count = offset + indice.count * size;
        ctx.moveTo(vertices[offset], vertices[offset + 1]);

        for (var j = offset + size; j < count; j += size) {
          ctx.lineTo(vertices[j], vertices[j + 1]);
        }
      }
    } // draw line or edge of polygon

  } catch (err) {
    _didIteratorError2 = true;
    _iteratorError2 = err;
  } finally {
    try {
      if (!_iteratorNormalCompletion2 && _iterator2["return"] != null) {
        _iterator2["return"]();
      }
    } finally {
      if (_didIteratorError2) {
        throw _iteratorError2;
      }
    }
  }

  if (style.stroke.color) {
    strokeStyle(style, ctx, invCtxScale);
    ctx.stroke();
  } // fill polygon only


  if (canBeFilled && (style.fill.color || style.fill.pattern)) {
    fillStyle(style, ctx, invCtxScale);
    ctx.fill();
  }
}

function fillStyle(style, ctx, invCtxScale) {
  if (style.fill.pattern && ctx.fillStyle.src !== style.fill.pattern.src) {
    ctx.fillStyle = ctx.createPattern(style.fill.pattern, 'repeat');

    if (ctx.fillStyle.setTransform) {
      ctx.fillStyle.setTransform(matrix.scale(invCtxScale));
    } else {
      console.warn('Raster pattern isn\'t completely supported on Ie and edge');
    }

    ctx.fillStyle.src = style.fill.pattern.src;
  } else if (style.fill.color && ctx.fillStyle !== style.fill.color) {
    ctx.fillStyle = style.fill.color;
  }

  if (style.fill.opacity !== ctx.globalAlpha) {
    ctx.globalAlpha = style.fill.opacity;
  }
}

function strokeStyle(style, ctx, invCtxScale) {
  if (ctx.strokeStyle !== style.stroke.color) {
    ctx.strokeStyle = style.stroke.color;
  }

  var width = Math.round(style.stroke.width || 2.0) * invCtxScale;

  if (ctx.lineWidth !== width) {
    ctx.lineWidth = width;
  }

  var alpha = style.stroke.opacity == undefined ? 1.0 : style.stroke.opacity;

  if (alpha !== ctx.globalAlpha && typeof alpha == 'number') {
    ctx.globalAlpha = alpha;
  }
}

function drawPoint(ctx, x, y) {
  var style = arguments.length > 3 && arguments[3] !== undefined ? arguments[3] : {};
  var invCtxScale = arguments.length > 4 ? arguments[4] : undefined;
  ctx.beginPath();
  var opacity = style.point.opacity == undefined ? 1.0 : style.point.opacity;

  if (opacity !== ctx.globalAlpha) {
    ctx.globalAlpha = opacity;
  }

  ctx.arc(x, y, (style.point.radius || 3.0) * invCtxScale, 0, 2 * Math.PI, false);

  if (style.point.color) {
    ctx.fillStyle = style.point.color;
    ctx.fill();
  }

  if (style.point.line) {
    ctx.lineWidth = (style.point.width || 1.0) * invCtxScale;
    ctx.strokeStyle = style.point.line;
    ctx.stroke();
  }
}

var coord = new _Coordinates["default"]('EPSG:4326', 0, 0, 0);

function drawFeature(ctx, feature, extent, style, invCtxScale) {
  var extentDim = extent.dimensions();
  var scaleRadius = extentDim.x / ctx.canvas.width;
  var _iteratorNormalCompletion3 = true;
  var _didIteratorError3 = false;
  var _iteratorError3 = undefined;

  try {
    for (var _iterator3 = feature.geometry[Symbol.iterator](), _step3; !(_iteratorNormalCompletion3 = (_step3 = _iterator3.next()).done); _iteratorNormalCompletion3 = true) {
      var geometry = _step3.value;

      if (geometry.extent.intersectsExtent(extent)) {
        var properties = geometry.properties;
        var geometryStyle = style.isStyle ? style : properties.style;

        if (feature.type === _Feature.FEATURE_TYPES.POINT) {
          // cross multiplication to know in the extent system the real size of
          // the point
          var px = (Math.round(geometryStyle.point.radius * invCtxScale) || 3 * invCtxScale) * scaleRadius;
          var _iteratorNormalCompletion4 = true;
          var _didIteratorError4 = false;
          var _iteratorError4 = undefined;

          try {
            for (var _iterator4 = geometry.indices[Symbol.iterator](), _step4; !(_iteratorNormalCompletion4 = (_step4 = _iterator4.next()).done); _iteratorNormalCompletion4 = true) {
              var indice = _step4.value;
              var offset = indice.offset * feature.size;
              var count = offset + indice.count * feature.size;

              for (var j = offset; j < count; j += feature.size) {
                coord.setFromArray(feature.vertices, j);

                if (extent.isPointInside(coord, px)) {
                  drawPoint(ctx, feature.vertices[j], feature.vertices[j + 1], geometryStyle, invCtxScale);
                }
              }
            }
          } catch (err) {
            _didIteratorError4 = true;
            _iteratorError4 = err;
          } finally {
            try {
              if (!_iteratorNormalCompletion4 && _iterator4["return"] != null) {
                _iterator4["return"]();
              }
            } finally {
              if (_didIteratorError4) {
                throw _iteratorError4;
              }
            }
          }
        } else {
          drawPolygon(ctx, feature.vertices, geometry.indices, geometryStyle, feature.size, extent, invCtxScale, feature.type == _Feature.FEATURE_TYPES.POLYGON);
        }
      }
    }
  } catch (err) {
    _didIteratorError3 = true;
    _iteratorError3 = err;
  } finally {
    try {
      if (!_iteratorNormalCompletion3 && _iterator3["return"] != null) {
        _iterator3["return"]();
      }
    } finally {
      if (_didIteratorError3) {
        throw _iteratorError3;
      }
    }
  }
}

var origin = new THREE.Vector2();
var dimension = new THREE.Vector2();
var scale = new THREE.Vector2();
var extentTransformed = new _Extent["default"]('EPSG:4326', 0, 0, 0, 0);
var _default = {
  // backgroundColor is a THREE.Color to specify a color to fill the texture
  // with, given there is no feature passed in parameter
  createTextureFromFeature: function createTextureFromFeature(collection, extent, sizeTexture, style, backgroundColor) {
    var texture;

    if (collection) {
      // A texture is instancied drawn canvas
      // origin and dimension are used to transform the feature's coordinates to canvas's space
      extent.dimensions(dimension);
      var c = document.createElement('canvas');
      coord.crs = extent.crs;
      c.width = sizeTexture;
      c.height = sizeTexture;
      var ctx = c.getContext('2d');

      if (backgroundColor) {
        ctx.fillStyle = backgroundColor.getStyle();
        ctx.fillRect(0, 0, sizeTexture, sizeTexture);
      }

      ctx.globalCompositeOperation = style.globalCompositeOperation || 'source-over';
      ctx.imageSmoothingEnabled = false;
      var ex = collection.crs == extent.crs ? extent : extent.as(collection.crs, _extent);
      var t = collection.translation;
      var s = collection.scale;
      extentTransformed.transformedCopy(t, s, ex);
      scale.set(ctx.canvas.width, ctx.canvas.width).divide(dimension);
      origin.set(extent.west, extent.south).add(t).multiply(scale).negate();
      ctx.setTransform(scale.x / s.x, 0, 0, scale.y / s.y, origin.x, origin.y); // to scale line width and radius circle

      var invCtxScale = s.x / scale.x; // Draw the canvas

      var _iteratorNormalCompletion5 = true;
      var _didIteratorError5 = false;
      var _iteratorError5 = undefined;

      try {
        for (var _iterator5 = collection.features[Symbol.iterator](), _step5; !(_iteratorNormalCompletion5 = (_step5 = _iterator5.next()).done); _iteratorNormalCompletion5 = true) {
          var feature = _step5.value;
          drawFeature(ctx, feature, extentTransformed, style, invCtxScale);
        }
      } catch (err) {
        _didIteratorError5 = true;
        _iteratorError5 = err;
      } finally {
        try {
          if (!_iteratorNormalCompletion5 && _iterator5["return"] != null) {
            _iterator5["return"]();
          }
        } finally {
          if (_didIteratorError5) {
            throw _iteratorError5;
          }
        }
      }

      texture = new THREE.CanvasTexture(c);
      texture.flipY = false;
    } else if (backgroundColor) {
      var data = new Uint8Array(3);
      data[0] = backgroundColor.r * 255;
      data[1] = backgroundColor.g * 255;
      data[2] = backgroundColor.b * 255;
      texture = new THREE.DataTexture(data, 1, 1, THREE.RGBFormat);
      texture.needsUpdate = true;
    } else {
      texture = new THREE.Texture();
    }

    return texture;
  }
};
exports["default"] = _default;