import {
  degToRads,
  roundCorner,
  bmMin,
} from '../common';
import {
  extendPrototype,
} from '../functionExtensions';
import DynamicPropertyContainer from '../helpers/dynamicProperties';
import PropertyFactory from '../PropertyFactory';
import BezierFactory from '../../3rd_party/BezierEaser';
import shapePool from '../pooling/shape_pool';
import shapeCollectionPool from '../pooling/shapeCollection_pool';

const ShapePropertyFactory = (function () {
  var initFrame = -999999;

  function interpolateShape(frameNum, previousValue, caching) {
    var iterationIndex = caching.lastIndex;
    var keyPropS;
    var keyPropE;
    var isHold;
    var j;
    var k;
    var jLen;
    var kLen;
    var perc;
    var vertexValue;
    var kf = this.keyframes;
    if (frameNum < kf[0].t - this.offsetTime) {
      keyPropS = kf[0].s[0];
      isHold = true;
      iterationIndex = 0;
    } else if (frameNum >= kf[kf.length - 1].t - this.offsetTime) {
      keyPropS = kf[kf.length - 1].s ? kf[kf.length - 1].s[0] : kf[kf.length - 2].e[0];
      /* if(kf[kf.length - 1].s){
                keyPropS = kf[kf.length - 1].s[0];
            }else{
                keyPropS = kf[kf.length - 2].e[0];
            } */
      isHold = true;
    } else {
      var i = iterationIndex;
      var len = kf.length - 1;
      var flag = true;
      var keyData;
      var nextKeyData;
      var keyframeMetadata;
      while (flag) {
        keyData = kf[i];
        nextKeyData = kf[i + 1];
        if ((nextKeyData.t - this.offsetTime) > frameNum) {
          break;
        }
        if (i < len - 1) {
          i += 1;
        } else {
          flag = false;
        }
      }
      keyframeMetadata = this.keyframesMetadata[i] || {};
      isHold = keyData.h === 1;
      iterationIndex = i;
      if (!isHold) {
        if (frameNum >= nextKeyData.t - this.offsetTime) {
          perc = 1;
        } else if (frameNum < keyData.t - this.offsetTime) {
          perc = 0;
        } else {
          var fnc;
          if (keyframeMetadata.__fnct) {
            fnc = keyframeMetadata.__fnct;
          } else {
            fnc = BezierFactory.getBezierEasing(keyData.o.x, keyData.o.y, keyData.i.x, keyData.i.y).get;
            keyframeMetadata.__fnct = fnc;
          }
          perc = fnc((frameNum - (keyData.t - this.offsetTime)) / ((nextKeyData.t - this.offsetTime) - (keyData.t - this.offsetTime)));
        }
        keyPropE = nextKeyData.s ? nextKeyData.s[0] : keyData.e[0];
      }
      keyPropS = keyData.s[0];
    }
    jLen = previousValue._length;
    kLen = keyPropS.i[0].length;
    caching.lastIndex = iterationIndex;

    for (j = 0; j < jLen; j += 1) {
      for (k = 0; k < kLen; k += 1) {
        vertexValue = isHold ? keyPropS.i[j][k] : keyPropS.i[j][k] + (keyPropE.i[j][k] - keyPropS.i[j][k]) * perc;
        previousValue.i[j][k] = vertexValue;
        vertexValue = isHold ? keyPropS.o[j][k] : keyPropS.o[j][k] + (keyPropE.o[j][k] - keyPropS.o[j][k]) * perc;
        previousValue.o[j][k] = vertexValue;
        vertexValue = isHold ? keyPropS.v[j][k] : keyPropS.v[j][k] + (keyPropE.v[j][k] - keyPropS.v[j][k]) * perc;
        previousValue.v[j][k] = vertexValue;
      }
    }
  }

  function interpolateShapeCurrentTime() {
    var frameNum = this.comp.renderedFrame - this.offsetTime;
    var initTime = this.keyframes[0].t - this.offsetTime;
    var endTime = this.keyframes[this.keyframes.length - 1].t - this.offsetTime;
    var lastFrame = this._caching.lastFrame;
    if (!(lastFrame !== initFrame && ((lastFrame < initTime && frameNum < initTime) || (lastFrame > endTime && frameNum > endTime)))) {
      /// /
      this._caching.lastIndex = lastFrame < frameNum ? this._caching.lastIndex : 0;
      this.interpolateShape(frameNum, this.pv, this._caching);
      /// /
    }
    this._caching.lastFrame = frameNum;
    return this.pv;
  }

  function resetShape() {
    this.paths = this.localShapeCollection;
  }

  function shapesEqual(shape1, shape2) {
    if (shape1._length !== shape2._length || shape1.c !== shape2.c) {
      return false;
    }
    var i;
    var len = shape1._length;
    for (i = 0; i < len; i += 1) {
      if (shape1.v[i][0] !== shape2.v[i][0]
            || shape1.v[i][1] !== shape2.v[i][1]
            || shape1.o[i][0] !== shape2.o[i][0]
            || shape1.o[i][1] !== shape2.o[i][1]
            || shape1.i[i][0] !== shape2.i[i][0]
            || shape1.i[i][1] !== shape2.i[i][1]) {
        return false;
      }
    }
    return true;
  }

  function setVValue(newPath) {
    if (!shapesEqual(this.v, newPath)) {
      this.v = shapePool.clone(newPath);
      this.localShapeCollection.releaseShapes();
      this.localShapeCollection.addShape(this.v);
      this._mdf = true;
      this.paths = this.localShapeCollection;
    }
  }

  function processEffectsSequence() {
    if (this.elem.globalData.frameId === this.frameId) {
      return;
    } if (!this.effectsSequence.length) {
      this._mdf = false;
      return;
    }
    if (this.lock) {
      this.setVValue(this.pv);
      return;
    }
    this.lock = true;
    this._mdf = false;
    var finalValue;
    if (this.kf) {
      finalValue = this.pv;
    } else if (this.data.ks) {
      finalValue = this.data.ks.k;
    } else {
      finalValue = this.data.pt.k;
    }
    var i;
    var len = this.effectsSequence.length;
    for (i = 0; i < len; i += 1) {
      finalValue = this.effectsSequence[i](finalValue);
    }
    this.setVValue(finalValue);
    this.lock = false;
    this.frameId = this.elem.globalData.frameId;
  }

  function ShapeProperty(elem, data, type) {
    this.propType = 'shape';
    this.comp = elem.comp;
    this.container = elem;
    this.elem = elem;
    this.data = data;
    this.k = false;
    this.kf = false;
    this._mdf = false;
    var pathData = type === 3 ? data.pt.k : data.ks.k;
    this.v = shapePool.clone(pathData);
    this.pv = shapePool.clone(this.v);
    this.localShapeCollection = shapeCollectionPool.newShapeCollection();
    this.paths = this.localShapeCollection;
    this.paths.addShape(this.v);
    this.reset = resetShape;
    this.effectsSequence = [];
  }

  function addEffect(effectFunction) {
    this.effectsSequence.push(effectFunction);
    this.container.addDynamicProperty(this);
  }

  ShapeProperty.prototype.interpolateShape = interpolateShape;
  ShapeProperty.prototype.getValue = processEffectsSequence;
  ShapeProperty.prototype.setVValue = setVValue;
  ShapeProperty.prototype.addEffect = addEffect;

  function KeyframedShapeProperty(elem, data, type) {
    this.propType = 'shape';
    this.comp = elem.comp;
    this.elem = elem;
    this.container = elem;
    this.offsetTime = elem.data.st;
    this.keyframes = type === 3 ? data.pt.k : data.ks.k;
    this.keyframesMetadata = [];
    this.k = true;
    this.kf = true;
    var len = this.keyframes[0].s[0].i.length;
    this.v = shapePool.newElement();
    this.v.setPathData(this.keyframes[0].s[0].c, len);
    this.pv = shapePool.clone(this.v);
    this.localShapeCollection = shapeCollectionPool.newShapeCollection();
    this.paths = this.localShapeCollection;
    this.paths.addShape(this.v);
    this.lastFrame = initFrame;
    this.reset = resetShape;
    this._caching = { lastFrame: initFrame, lastIndex: 0 };
    this.effectsSequence = [interpolateShapeCurrentTime.bind(this)];
  }
  KeyframedShapeProperty.prototype.getValue = processEffectsSequence;
  KeyframedShapeProperty.prototype.interpolateShape = interpolateShape;
  KeyframedShapeProperty.prototype.setVValue = setVValue;
  KeyframedShapeProperty.prototype.addEffect = addEffect;

  var EllShapeProperty = (function () {
    var cPoint = roundCorner;

    function EllShapePropertyFactory(elem, data) {
      this.v = shapePool.newElement();
      this.v.setPathData(true, 4);
      this.localShapeCollection = shapeCollectionPool.newShapeCollection();
      this.paths = this.localShapeCollection;
      this.localShapeCollection.addShape(this.v);
      this.d = data.d;
      this.elem = elem;
      this.comp = elem.comp;
      this.frameId = -1;
      this.initDynamicPropertyContainer(elem);
      this.p = PropertyFactory.getProp(elem, data.p, 1, 0, this);
      this.s = PropertyFactory.getProp(elem, data.s, 1, 0, this);
      if (this.dynamicProperties.length) {
        this.k = true;
      } else {
        this.k = false;
        this.convertEllToPath();
      }
    }

    EllShapePropertyFactory.prototype = {
      reset: resetShape,
      getValue: function () {
        if (this.elem.globalData.frameId === this.frameId) {
          return;
        }
        this.frameId = this.elem.globalData.frameId;
        this.iterateDynamicProperties();

        if (this._mdf) {
          this.convertEllToPath();
        }
      },
      convertEllToPath: function () {
        var p0 = this.p.v[0];
        var p1 = this.p.v[1];
        var s0 = this.s.v[0] / 2;
        var s1 = this.s.v[1] / 2;
        var _cw = this.d !== 3;
        var _v = this.v;
        _v.v[0][0] = p0;
        _v.v[0][1] = p1 - s1;
        _v.v[1][0] = _cw ? p0 + s0 : p0 - s0;
        _v.v[1][1] = p1;
        _v.v[2][0] = p0;
        _v.v[2][1] = p1 + s1;
        _v.v[3][0] = _cw ? p0 - s0 : p0 + s0;
        _v.v[3][1] = p1;
        _v.i[0][0] = _cw ? p0 - s0 * cPoint : p0 + s0 * cPoint;
        _v.i[0][1] = p1 - s1;
        _v.i[1][0] = _cw ? p0 + s0 : p0 - s0;
        _v.i[1][1] = p1 - s1 * cPoint;
        _v.i[2][0] = _cw ? p0 + s0 * cPoint : p0 - s0 * cPoint;
        _v.i[2][1] = p1 + s1;
        _v.i[3][0] = _cw ? p0 - s0 : p0 + s0;
        _v.i[3][1] = p1 + s1 * cPoint;
        _v.o[0][0] = _cw ? p0 + s0 * cPoint : p0 - s0 * cPoint;
        _v.o[0][1] = p1 - s1;
        _v.o[1][0] = _cw ? p0 + s0 : p0 - s0;
        _v.o[1][1] = p1 + s1 * cPoint;
        _v.o[2][0] = _cw ? p0 - s0 * cPoint : p0 + s0 * cPoint;
        _v.o[2][1] = p1 + s1;
        _v.o[3][0] = _cw ? p0 - s0 : p0 + s0;
        _v.o[3][1] = p1 - s1 * cPoint;
      },
    };

    extendPrototype([DynamicPropertyContainer], EllShapePropertyFactory);

    return EllShapePropertyFactory;
  }());

  var StarShapeProperty = (function () {
    function StarShapePropertyFactory(elem, data) {
      this.v = shapePool.newElement();
      this.v.setPathData(true, 0);
      this.elem = elem;
      this.comp = elem.comp;
      this.data = data;
      this.frameId = -1;
      this.d = data.d;
      this.initDynamicPropertyContainer(elem);
      if (data.sy === 1) {
        this.ir = PropertyFactory.getProp(elem, data.ir, 0, 0, this);
        this.is = PropertyFactory.getProp(elem, data.is, 0, 0.01, this);
        this.convertToPath = this.convertStarToPath;
      } else {
        this.convertToPath = this.convertPolygonToPath;
      }
      this.pt = PropertyFactory.getProp(elem, data.pt, 0, 0, this);
      this.p = PropertyFactory.getProp(elem, data.p, 1, 0, this);
      this.r = PropertyFactory.getProp(elem, data.r, 0, degToRads, this);
      this.or = PropertyFactory.getProp(elem, data.or, 0, 0, this);
      this.os = PropertyFactory.getProp(elem, data.os, 0, 0.01, this);
      this.localShapeCollection = shapeCollectionPool.newShapeCollection();
      this.localShapeCollection.addShape(this.v);
      this.paths = this.localShapeCollection;
      if (this.dynamicProperties.length) {
        this.k = true;
      } else {
        this.k = false;
        this.convertToPath();
      }
    }

    StarShapePropertyFactory.prototype = {
      reset: resetShape,
      getValue: function () {
        if (this.elem.globalData.frameId === this.frameId) {
          return;
        }
        this.frameId = this.elem.globalData.frameId;
        this.iterateDynamicProperties();
        if (this._mdf) {
          this.convertToPath();
        }
      },
      convertStarToPath: function () {
        var numPts = Math.floor(this.pt.v) * 2;
        var angle = (Math.PI * 2) / numPts;
        /* this.v.v.length = numPts;
                this.v.i.length = numPts;
                this.v.o.length = numPts; */
        var longFlag = true;
        var longRad = this.or.v;
        var shortRad = this.ir.v;
        var longRound = this.os.v;
        var shortRound = this.is.v;
        var longPerimSegment = (2 * Math.PI * longRad) / (numPts * 2);
        var shortPerimSegment = (2 * Math.PI * shortRad) / (numPts * 2);
        var i;
        var rad;
        var roundness;
        var perimSegment;
        var currentAng = -Math.PI / 2;
        currentAng += this.r.v;
        var dir = this.data.d === 3 ? -1 : 1;
        this.v._length = 0;
        for (i = 0; i < numPts; i += 1) {
          rad = longFlag ? longRad : shortRad;
          roundness = longFlag ? longRound : shortRound;
          perimSegment = longFlag ? longPerimSegment : shortPerimSegment;
          var x = rad * Math.cos(currentAng);
          var y = rad * Math.sin(currentAng);
          var ox = x === 0 && y === 0 ? 0 : y / Math.sqrt(x * x + y * y);
          var oy = x === 0 && y === 0 ? 0 : -x / Math.sqrt(x * x + y * y);
          x += +this.p.v[0];
          y += +this.p.v[1];
          this.v.setTripleAt(x, y, x - ox * perimSegment * roundness * dir, y - oy * perimSegment * roundness * dir, x + ox * perimSegment * roundness * dir, y + oy * perimSegment * roundness * dir, i, true);

          /* this.v.v[i] = [x,y];
                    this.v.i[i] = [x+ox*perimSegment*roundness*dir,y+oy*perimSegment*roundness*dir];
                    this.v.o[i] = [x-ox*perimSegment*roundness*dir,y-oy*perimSegment*roundness*dir];
                    this.v._length = numPts; */
          longFlag = !longFlag;
          currentAng += angle * dir;
        }
      },
      convertPolygonToPath: function () {
        var numPts = Math.floor(this.pt.v);
        var angle = (Math.PI * 2) / numPts;
        var rad = this.or.v;
        var roundness = this.os.v;
        var perimSegment = (2 * Math.PI * rad) / (numPts * 4);
        var i;
        var currentAng = -Math.PI * 0.5;
        var dir = this.data.d === 3 ? -1 : 1;
        currentAng += this.r.v;
        this.v._length = 0;
        for (i = 0; i < numPts; i += 1) {
          var x = rad * Math.cos(currentAng);
          var y = rad * Math.sin(currentAng);
          var ox = x === 0 && y === 0 ? 0 : y / Math.sqrt(x * x + y * y);
          var oy = x === 0 && y === 0 ? 0 : -x / Math.sqrt(x * x + y * y);
          x += +this.p.v[0];
          y += +this.p.v[1];
          this.v.setTripleAt(x, y, x - ox * perimSegment * roundness * dir, y - oy * perimSegment * roundness * dir, x + ox * perimSegment * roundness * dir, y + oy * perimSegment * roundness * dir, i, true);
          currentAng += angle * dir;
        }
        this.paths.length = 0;
        this.paths[0] = this.v;
      },

    };
    extendPrototype([DynamicPropertyContainer], StarShapePropertyFactory);

    return StarShapePropertyFactory;
  }());

  var RectShapeProperty = (function () {
    function RectShapePropertyFactory(elem, data) {
      this.v = shapePool.newElement();
      this.v.c = true;
      this.localShapeCollection = shapeCollectionPool.newShapeCollection();
      this.localShapeCollection.addShape(this.v);
      this.paths = this.localShapeCollection;
      this.elem = elem;
      this.comp = elem.comp;
      this.frameId = -1;
      this.d = data.d;
      this.initDynamicPropertyContainer(elem);
      this.p = PropertyFactory.getProp(elem, data.p, 1, 0, this);
      this.s = PropertyFactory.getProp(elem, data.s, 1, 0, this);
      this.r = PropertyFactory.getProp(elem, data.r, 0, 0, this);
      if (this.dynamicProperties.length) {
        this.k = true;
      } else {
        this.k = false;
        this.convertRectToPath();
      }
    }

    RectShapePropertyFactory.prototype = {
      convertRectToPath: function () {
        var p0 = this.p.v[0];
        var p1 = this.p.v[1];
        var v0 = this.s.v[0] / 2;
        var v1 = this.s.v[1] / 2;
        var round = bmMin(v0, v1, this.r.v);
        var cPoint = round * (1 - roundCorner);
        this.v._length = 0;

        if (this.d === 2 || this.d === 1) {
          this.v.setTripleAt(p0 + v0, p1 - v1 + round, p0 + v0, p1 - v1 + round, p0 + v0, p1 - v1 + cPoint, 0, true);
          this.v.setTripleAt(p0 + v0, p1 + v1 - round, p0 + v0, p1 + v1 - cPoint, p0 + v0, p1 + v1 - round, 1, true);
          if (round !== 0) {
            this.v.setTripleAt(p0 + v0 - round, p1 + v1, p0 + v0 - round, p1 + v1, p0 + v0 - cPoint, p1 + v1, 2, true);
            this.v.setTripleAt(p0 - v0 + round, p1 + v1, p0 - v0 + cPoint, p1 + v1, p0 - v0 + round, p1 + v1, 3, true);
            this.v.setTripleAt(p0 - v0, p1 + v1 - round, p0 - v0, p1 + v1 - round, p0 - v0, p1 + v1 - cPoint, 4, true);
            this.v.setTripleAt(p0 - v0, p1 - v1 + round, p0 - v0, p1 - v1 + cPoint, p0 - v0, p1 - v1 + round, 5, true);
            this.v.setTripleAt(p0 - v0 + round, p1 - v1, p0 - v0 + round, p1 - v1, p0 - v0 + cPoint, p1 - v1, 6, true);
            this.v.setTripleAt(p0 + v0 - round, p1 - v1, p0 + v0 - cPoint, p1 - v1, p0 + v0 - round, p1 - v1, 7, true);
          } else {
            this.v.setTripleAt(p0 - v0, p1 + v1, p0 - v0 + cPoint, p1 + v1, p0 - v0, p1 + v1, 2);
            this.v.setTripleAt(p0 - v0, p1 - v1, p0 - v0, p1 - v1 + cPoint, p0 - v0, p1 - v1, 3);
          }
        } else {
          this.v.setTripleAt(p0 + v0, p1 - v1 + round, p0 + v0, p1 - v1 + cPoint, p0 + v0, p1 - v1 + round, 0, true);
          if (round !== 0) {
            this.v.setTripleAt(p0 + v0 - round, p1 - v1, p0 + v0 - round, p1 - v1, p0 + v0 - cPoint, p1 - v1, 1, true);
            this.v.setTripleAt(p0 - v0 + round, p1 - v1, p0 - v0 + cPoint, p1 - v1, p0 - v0 + round, p1 - v1, 2, true);
            this.v.setTripleAt(p0 - v0, p1 - v1 + round, p0 - v0, p1 - v1 + round, p0 - v0, p1 - v1 + cPoint, 3, true);
            this.v.setTripleAt(p0 - v0, p1 + v1 - round, p0 - v0, p1 + v1 - cPoint, p0 - v0, p1 + v1 - round, 4, true);
            this.v.setTripleAt(p0 - v0 + round, p1 + v1, p0 - v0 + round, p1 + v1, p0 - v0 + cPoint, p1 + v1, 5, true);
            this.v.setTripleAt(p0 + v0 - round, p1 + v1, p0 + v0 - cPoint, p1 + v1, p0 + v0 - round, p1 + v1, 6, true);
            this.v.setTripleAt(p0 + v0, p1 + v1 - round, p0 + v0, p1 + v1 - round, p0 + v0, p1 + v1 - cPoint, 7, true);
          } else {
            this.v.setTripleAt(p0 - v0, p1 - v1, p0 - v0 + cPoint, p1 - v1, p0 - v0, p1 - v1, 1, true);
            this.v.setTripleAt(p0 - v0, p1 + v1, p0 - v0, p1 + v1 - cPoint, p0 - v0, p1 + v1, 2, true);
            this.v.setTripleAt(p0 + v0, p1 + v1, p0 + v0 - cPoint, p1 + v1, p0 + v0, p1 + v1, 3, true);
          }
        }
      },
      getValue: function () {
        if (this.elem.globalData.frameId === this.frameId) {
          return;
        }
        this.frameId = this.elem.globalData.frameId;
        this.iterateDynamicProperties();
        if (this._mdf) {
          this.convertRectToPath();
        }
      },
      reset: resetShape,
    };
    extendPrototype([DynamicPropertyContainer], RectShapePropertyFactory);

    return RectShapePropertyFactory;
  }());

  function getShapeProp(elem, data, type) {
    var prop;
    if (type === 3 || type === 4) {
      var dataProp = type === 3 ? data.pt : data.ks;
      var keys = dataProp.k;
      if (keys.length) {
        prop = new KeyframedShapeProperty(elem, data, type);
      } else {
        prop = new ShapeProperty(elem, data, type);
      }
    } else if (type === 5) {
      prop = new RectShapeProperty(elem, data);
    } else if (type === 6) {
      prop = new EllShapeProperty(elem, data);
    } else if (type === 7) {
      prop = new StarShapeProperty(elem, data);
    }
    if (prop.k) {
      elem.addDynamicProperty(prop);
    }
    return prop;
  }

  function getConstructorFunction() {
    return ShapeProperty;
  }

  function getKeyframedConstructorFunction() {
    return KeyframedShapeProperty;
  }

  var ob = {};
  ob.getShapeProp = getShapeProp;
  ob.getConstructorFunction = getConstructorFunction;
  ob.getKeyframedConstructorFunction = getKeyframedConstructorFunction;
  return ob;
}());

export default ShapePropertyFactory;