import {Generator} from './id-generator'
import {Layer} from './viewer2d'
import {Styles} from './styles'
import {Arc} from './shapes/arc'
import {EndPoint} from './shapes/point'
import {Segment} from './shapes/segment'
import {Circle} from './shapes/circle'
import {Ellipse} from './shapes/ellipse'
import {EllipticalArc} from './shapes/elliptical-arc'
import {BezierCurve} from './shapes/bezier-curve'
import {AngleBetweenDimension, DiameterDimension, Dimension, HDimension, VDimension} from './shapes/dim'
import {Constraints} from './parametric'
import Vector from 'math/vector';
import exportTextData from 'gems/exportTextData';
import NurbsCurve from '../brep/geom/curves/nurbsCurve';
import {NurbsObject} from './shapes/nurbsObject';
import {AlgNumConstraint} from "./constr/ANConstraints";
import {SketchGenerator} from "./generators/sketchGenerator";
import {SketchTypes} from "./shapes/sketch-types";

const Types = SketchTypes;

IO.BOUNDARY_LAYER_NAME = "__bounds__";

/** @constructor */
function IO(viewer) {
  this.viewer = viewer;
}

IO.prototype.loadSketch = function(sketchData) {
  return this._loadSketch(JSON.parse(sketchData));
};

IO.prototype.serializeSketch = function(metadata) {
  return JSON.stringify(this._serializeSketch(metadata));
};

IO.prototype._loadSketch = function(sketch) {

  this.cleanUpData();

  this.viewer.parametricManager.startTransaction();

  const index = {};

  function endPoint(p) {
    const [id, [xref, x], [yref, y]] = p;
    let ep = index[id];
    if (ep !== undefined) {
      return;
    }
    ep = new EndPoint(x, y);
    index[xref] = ep.params.x;
    index[yref] = ep.params.y;
    index[id] = ep;
    return ep;
  }

  const getStage = pointer => {
    if (pointer === undefined) {
      return this.viewer.parametricManager.stage;
    }
    this.viewer.parametricManager.accommodateStages(pointer);
    return this.viewer.parametricManager.getStage(pointer);
  };

  let layerIdGen = 0;
  function getLayer(viewer, name) {
    if (name === undefined) {
      name = "layer_" + layerIdGen++;
    } else {
      if (name === viewer.dimLayer.name) {
        return viewer.dimLayer;
      }
      for (let i = 0; i < viewer.layers.length; ++i) {
        if (name === viewer.layers[i].name) {
          return viewer.layers[i];
        }
      }
    }
    let layer = viewer.createLayer(name, Styles.DEFAULT);
    viewer.layers.push(layer);
    return layer;
  }
  const version = sketch.version || 1;
  let T = Types;
  let maxEdge = 0;
  let sketchLayers = sketch.layers;
  let boundary = sketch.boundary;
  let boundaryNeedsUpdate = !(boundary === undefined || boundary == null);
  const dimensions = [];
  if (sketchLayers !== undefined) {
    for (let l = 0; l < sketchLayers.length; ++l) {
      let ioLayer = sketchLayers[l];
      let layerName = ioLayer.name;
      let boundaryProcessing = layerName === IO.BOUNDARY_LAYER_NAME && boundaryNeedsUpdate;
      let layer = getLayer(this.viewer, layerName);
      // if (!!ioLayer.style) layer.style = ioLayer.style;
      layer.readOnly = !!ioLayer.readOnly;
      let layerData = ioLayer.data;
      for (let i = 0; i < layerData.length; ++i) {
        let obj = layerData[i];
        let skobj = null;
        let _class = obj._class;
        let aux = !!obj.aux;
        let role = obj.role;
        
        //support legacy format
        if (!role) {
          role = layerName === '_construction_' ? 'construction' : null;
        }
        
        if (boundaryProcessing) {
          if (_class === T.SEGMENT && boundary.lines.length === 0) continue;
          else if (_class === T.ARC && boundary.arcs.length === 0) continue;
          else if (_class === T.CIRCLE && boundary.circles.length === 0) continue;
        }
        
        if (_class === T.SEGMENT) {
          const [aRef, bRef] = obj.points;
          const a = endPoint(aRef);
          const b = endPoint(bRef);
          skobj = new Segment(a, b);
        } else if (_class === T.POINT) {
          skobj = endPoint(obj.location);
        } else if (_class === T.ARC) {
          const points = obj.points;
          const a = endPoint(points[0]);
          const b = endPoint(points[1]);
          const c = endPoint(points[2]);
          skobj = new Arc(a, b, c);
        } else if (_class === T.CIRCLE) {
          const c = endPoint(obj.c);
          skobj = new Circle(c);
          skobj.r.set(obj.r);
        } else if (_class === T.ELLIPSE) {
          const ep1 = endPoint(obj.ep1);
          const ep2 = endPoint(obj.ep2);
          skobj = new Ellipse(ep1, ep2);
          skobj.r.set(obj.r);
        } else if (_class === T.ELL_ARC) {
          const ep1 = endPoint(obj.ep1);
          const ep2 = endPoint(obj.ep2);
          const a = endPoint(obj.a);
          const b = endPoint(obj.b);
          skobj = new EllipticalArc(ep1, ep2, a, b);
          skobj.r.set(obj.r);
        } else if (_class === T.BEZIER) {
          const a = endPoint(obj.a);
          const b = endPoint(obj.b);
          const cp1 = endPoint(obj.cp1);
          const cp2 = endPoint(obj.cp2);
          skobj = new BezierCurve(a, b, cp1, cp2);
        } else {
          dimensions.push(obj);
        }
        if (skobj != null) {
          skobj.role = role;
          getStage(obj.stage).assignObject(skobj);
          if (!aux) skobj.stabilize(this.viewer);
          if (aux) skobj.accept(function(o){o.aux = true; return true;});
          if (obj.edge !== undefined) {
            skobj.edge = obj.edge;
            maxEdge = Math.max(maxEdge, skobj.edge);
          }
          layer.add(skobj);
          index[obj.id] = skobj;
          
          //reindex non point children to recover constraints
          const childrenIds = obj.children;
          if (childrenIds) {
            const children = nonPointChildren(skobj);
            for (let childIdx = 0; childIdx < childrenIds.length; childIdx++) {
              index[childrenIds[childIdx]] = children[childIdx];
            }
          }
        }
        if (boundaryProcessing) {
          if (_class === T.SEGMENT) this.synchLine(skobj, boundary.lines.shift());
          else if (_class === T.ARC) this.synchArc(skobj, boundary.arcs.shift());
          else if (_class === T.CIRCLE) this.synchCircle(skobj, boundary.circles.shift());
        }
      }
    }
  }

  for (let obj of dimensions) {
    let _class = obj._class;
    let skobj = null;
    if (_class === T.HDIM) {
      skobj = new HDimension(index[obj.a], index[obj.b]);
      obj.offset !== undefined && (skobj.offset = obj.offset);
    } else if (_class === T.VDIM) {
      skobj = new VDimension(index[obj.a], index[obj.b]);
      obj.offset !== undefined && (skobj.offset = obj.offset);
    } else if (_class === T.DIM) {
      skobj = new Dimension(index[obj.a], index[obj.b]);
      obj.offset !== undefined && (skobj.offset = obj.offset);
    } else if (_class === T.DDIM) {
      skobj = new DiameterDimension(index[obj.obj]);
      skobj.angle = obj.angle;
    } else if (_class === T.ANGLE_BW) {
      skobj = new AngleBetweenDimension(index[obj.a], index[obj.b]);
      skobj.offset = obj.offset;
    }
    this.viewer.dimLayer.add(skobj);
    index[obj.id] = skobj;
  }

  if (boundaryNeedsUpdate) {
    this.addNewBoundaryObjects(boundary, maxEdge);
  }

  if (sketch.constraints && !sketch.stages) {
    sketch.stages = [
      {
        constraints: sketch.constraints,
        generators: []
      }
    ]
  }

  if (sketch.stages) {
    for (let stage of sketch.stages) {

      for (let constr of stage.constraints) {
        try {
          const constraint = AlgNumConstraint.read(constr, index);
          const stage = getStage(constr.stage||0);
          stage.addConstraint(constraint);
        } catch (e) {
          console.error(e);
          console.error("skipping errant constraint: " + constr&&constr.typeId);
        }
      }
      for (let gen of stage.generators) {
        try {
          const generator = SketchGenerator.read(gen, index);
          const stage = getStage(gen.stage||0);
          stage.addGenerator(generator);
        } catch (e) {
          console.error(e);
          console.error("skipping errant generator: " + gen&&gen.typeId);
        }
      }

    }

  }
  let constants = sketch.constants;
  if (constants !== undefined) {
    this.viewer.parametricManager.$constantDefinition.next(constants);
  }

  this.viewer.parametricManager.finishTransaction();
  this.viewer.parametricManager.notify();
};


IO.prototype.synchLine = function(skobj, edgeObj) {
  skobj.a.x = edgeObj.a.x;
  skobj.a.y = edgeObj.a.y;
  skobj.b.x = edgeObj.b.x;
  skobj.b.y = edgeObj.b.y;
};

IO.prototype.synchArc = function(skobj, edgeObj) {
  skobj.a.x = edgeObj.a.x;
  skobj.a.y = edgeObj.a.y;
  skobj.b.x = edgeObj.b.x;
  skobj.b.y = edgeObj.b.y;
  skobj.c.x = edgeObj.c.x;
  skobj.c.y = edgeObj.c.y;
};

IO.prototype.synchCircle = function(skobj, edgeObj) {
  skobj.c.x = edgeObj.c.x;
  skobj.c.y = edgeObj.c.y;
  skobj.r.set(edgeObj.r);
};

IO.prototype.addNewBoundaryObjects = function(boundary, maxEdge) {
  var boundaryLayer = this.viewer.findLayerByName(IO.BOUNDARY_LAYER_NAME);

  if (boundaryLayer === null) {
    boundaryLayer = this.viewer.createLayer(IO.BOUNDARY_LAYER_NAME, Styles.BOUNDS);
    this.viewer.layers.splice(0, 0, boundaryLayer);
  } 

  boundaryLayer.readOnly = true;
  boundaryLayer.style = Styles.BOUNDS;

  var i, obj, id = maxEdge + 1;
  function __processAux(obj) {
    obj.edge = id ++;
    obj.accept(function(o){
      o.aux = true;
      return true;
    });
  }

  for (i = 0; i < boundary.lines.length; ++i) {
    var edge = boundary.lines[i];
    var seg = this.viewer.addSegment(edge.a.x, edge.a.y, edge.b.x, edge.b.y, boundaryLayer);
    __processAux(seg);
  }
  for (i = 0; i < boundary.arcs.length; ++i) {
    var a = boundary.arcs[i];
    var arc = new Arc(
      new EndPoint(a.a.x, a.a.y),
      new EndPoint(a.b.x, a.b.y),
      new EndPoint(a.c.x, a.c.y)
    );
    boundaryLayer.objects.push(arc);
    __processAux(arc);
  }
  for (i = 0; i < boundary.circles.length; ++i) {
    obj = boundary.circles[i];
    var circle = new Circle(new EndPoint(obj.c.x, obj.c.y));
    circle.r.set(obj.r);
    boundaryLayer.objects.push(circle);
    __processAux(circle);
  }
  for (i = 0; i < boundary.nurbses.length; ++i) {
    let nurbsData = boundary.nurbses[i];
    let nurbs = new NurbsObject(NurbsCurve.deserialize(nurbsData), new EndPoint(), new EndPoint());
    boundaryLayer.objects.push(nurbs);
    __processAux(nurbs);
  }
};

IO.prototype.cleanUpData = function() {
  for (var l = 0; l < this.viewer.layers.length; ++l) {
    var layer = this.viewer.layers[l];
    if (layer.objects.length != 0) {
      layer.objects = [];
    }
  }
  this.viewer.deselectAll();
  Generator.resetIDGenerator(0);

  this.viewer.parametricManager.reset();
  this.viewer.parametricManager.notify();

};

IO.prototype._serializeSketch = function(metadata) {
  var sketch = {};
  //sketch.boundary = boundary;
  sketch.layers = [];
  function point(p) {
    return [ p.id, [p.params.x.id, p.x], [p.params.y.id, p.y] ];
  }
  var T = Types;
  var toSave = [this.viewer.dimLayers, this.viewer.layers];
  for (var t = 0; t < toSave.length; ++t) {
    var layers = toSave[t];
    for (var l = 0; l < layers.length; ++l) {
      var layer = layers[l];
      var toLayer = {name : layer.name, readOnly: layer.readOnly, data : []};
      sketch.layers.push(toLayer);
      for (var i = 0; i < layer.objects.length; ++i) {
        var obj = layer.objects[i];
        var to = {id: obj.id, _class: obj._class, role: obj.role};
        if (obj.aux) to.aux = obj.aux;
        if (obj.edge !== undefined) to.edge = obj.edge;
        to.stage = this.viewer.parametricManager.getStageIndex(obj.stage);
        toLayer.data.push(to);
        if (obj._class === T.SEGMENT) {
          to.points = [point(obj.a), point(obj.b)];
        } else if (obj._class === T.POINT) {
          to.location = point(obj);
        } else if (obj._class === T.ARC) {
          to.points = [point(obj.a), point(obj.b), point(obj.c)];
        } else if (obj._class === T.CIRCLE) {
          to.c = point(obj.c);
          to.r = obj.r.get();
        } else if (obj._class === T.ELLIPSE) {
          to.ep1 = point(obj.ep1);
          to.ep2 = point(obj.ep2);
          to.r = obj.r.get();
        } else if (obj._class === T.ELL_ARC) {
          to.ep1 = point(obj.ep1);
          to.ep2 = point(obj.ep2);
          to.a = point(obj.a);
          to.b = point(obj.b);
          to.r = obj.r.get();
        } else if (obj._class === T.BEZIER) {
          to.a = point(obj.a);
          to.b = point(obj.b);
          to.cp1 = point(obj.cp1);
          to.cp2 = point(obj.cp2);
        } else if (obj._class === T.DIM || obj._class === T.HDIM || obj._class === T.VDIM) {
          to.a = obj.a.id;
          to.b = obj.b.id;
          to.offset = obj.offset;
        } else if (obj._class === T.DDIM) {
          to.obj = obj.obj.id;
          to.angle = obj.obj.angle;
        } else if (obj._class === T.ANGLE_BW) {
          to.a = obj.a.id;
          to.b = obj.b.id;
          to.offset = obj.offset;
        }
        const children = nonPointChildren(obj).map(c => c.id);
        if (children.length !== 0) {
          to.children = children;
        }
      }
    }
  }

  sketch.stages = [];

  for (let stage of this.viewer.parametricManager.stages) {
    const stageOut = {
      constraints: [],
      generators: [],
    };
    const systemConstraints = stage.algNumSystem.allConstraints;
    for (let sc of systemConstraints) {
      if (!sc.internal) {
        stageOut.constraints.push(sc.write());
      }
    }

    for (let gen of stage.generators) {
      stageOut.generators.push(gen.write());
    }

    sketch.stages.push(stageOut);
  }

  const constantDefinition = this.viewer.parametricManager.constantDefinition;
  if (constantDefinition !== undefined && constantDefinition != null && !/^\s*$/.test(constantDefinition)) {
    sketch.constants = constantDefinition;
  }
  sketch.scene = {
    dx: this.viewer.translate.x,
    dy: this.viewer.translate.y,
    scale: this.viewer.scale,
  };
  sketch.metadata = metadata;
  sketch.version = 2;
  return sketch;
};

function nonPointChildren(obj){
  const children = [];
  obj.accept((o) => {
    if (o._class !== Types.POINT) {
      children.push(o);
    }
    return true;
  });
  return children;
}

IO.prototype.parseConstr = function (c, index) {
  var name = c[0];
  var ps = c[1];
  function find(id) {
    var p = index[id];
    if (!p) {
      throw "Constraint " + name + " refers to nonexistent object.";
    }
    return p;
  }
  var constrCreate = Constraints.Factory[name];
  if (constrCreate === undefined) {
    throw "Constraint " + name + " doesn't exist.";
  }
  return constrCreate(find, ps);
};


function _format(str, args) {
  if (args.length == 0) return str;
  var i = 0;
  return str.replace(/\$/g, function() {
    if (args === undefined || args[i] === undefined) throw "format arguments mismatch";
    var val =  args[i];
    if (typeof val === 'number') val = val.toPrecision();
    i ++;
    return val;
  });
}

/** @constructor */
function PrettyColors() {
  var colors = ["#000000", "#00008B", "#006400", "#8B0000", "#FF8C00", "#E9967A"];
  var colIdx = 0;
  this.next = function () {
    return colors[colIdx++ % colors.length];
  }
}

/** @constructor */
function TextBuilder() {
  this.data = "";
  this.fline = function (chunk, args) {
    this.data += _format(chunk, args) + "\n"
  };
  this.line = function (chunk) {
    this.data += chunk + "\n"
  };
  this.number = function (n) {
    this.data += n.toPrecision()
  };
  this.numberln = function (n) {
    this.number(n)
    this.data += "\n"
  }
}

/** @constructor */
function BBox() {
  var bbox = [Number.MAX_VALUE, Number.MAX_VALUE, - Number.MAX_VALUE, - Number.MAX_VALUE];

  var T = Types;

  this.checkLayers = function(layers) {
    for (var l = 0; l < layers.length; ++l)
      for (var i = 0; i < layers[l].objects.length; ++i)
        this.check(layers[l].objects[i]);
  };

  this.check = function(obj) {
    if (obj._class === T.SEGMENT) {
      this.checkBounds(obj.a.x, obj.a.y);
      this.checkBounds(obj.b.x, obj.b.y);
    } else if (obj._class === T.POINT) {
      this.checkBounds(obj.x, obj.y);
    } else if (obj._class === T.ARC) {
      this.checkCircBounds(obj.c.x, obj.c.y, obj.r.get());
    } else if (obj._class === T.CIRCLE) {
      this.checkCircBounds(obj.c.x, obj.c.y, obj.r.get());
    } else if (obj._class === T.ELLIPSE || obj._class === T.ELL_ARC) {
      this.checkCircBounds(obj.centerX, obj.centerY, Math.max(obj.radiusX, obj.radiusY));
    } else if (obj) {
      obj.accept((o) => {
        if (o._class == T.POINT) {
          this.checkBounds(o.x, o.y);
        }
        return true;
      });
//    } else if (obj._class === T.DIM || obj._class === T.HDIM || obj._class === T.VDIM) {
    }
  };

  this.isValid = function() {
    return bbox[0] != Number.MAX_VALUE;
  };
  
  this.checkBounds = function(x, y) {
    bbox[0] = Math.min(bbox[0], x);
    bbox[1] = Math.min(bbox[1], y);
    bbox[2] = Math.max(bbox[2], x);
    bbox[3] = Math.max(bbox[3], y);
  };

  this.checkCircBounds = function(x, y, r) {
    this.checkBounds(x + r, y + r);
    this.checkBounds(x - r, y + r);
    this.checkBounds(x - r, y - r);
    this.checkBounds(x - r, y + r);
  };

  this.inc = function(by) {
    bbox[0] -= by;
    bbox[1] -= by;
    bbox[2] += by;
    bbox[3] += by;
  };
  
  this.width = function() {
    return bbox[2] - bbox[0];
  };

  this.height = function() {
    return bbox[3] - bbox[1];
  };

  this.bbox = bbox;
}

IO.prototype.getWorkspaceToExport = function() {
  return [this.viewer.layers];
};

IO.prototype.getLayersToExport = function() {
  var ws = this.getWorkspaceToExport();
  var toExport = [];
  for (var t = 0; t < ws.length; ++t) {
    var layers = ws[t];
    for (var l = 0; l < layers.length; ++l) {
      var layer = layers[l];
      toExport.push(layer)
    }
  }
  return toExport;
};

IO.prototype.svgExport = function () {

  var T = Types;
  var out = new TextBuilder();

  var bbox = new BBox();

  var a = new Vector();
  var b = new Vector();

  var prettyColors = new PrettyColors();
  var toExport = this.getLayersToExport();
  for (var l = 0; l < toExport.length; ++l) {
    var layer = toExport[l];
    var color = prettyColors.next();
    out.fline('<g id="$" fill="$" stroke="$" stroke-width="$">', [layer.name, "none", color, '2']);
    for (var i = 0; i < layer.objects.length; ++i) {
      var obj = layer.objects[i];
      if (obj._class !== T.POINT) bbox.check(obj);
      if (obj._class === T.SEGMENT) {
        out.fline('<line x1="$" y1="$" x2="$" y2="$" />', [obj.a.x, obj.a.y, obj.b.x, obj.b.y]);
      } else if (obj._class === T.ARC) {
        a.set(obj.a.x - obj.c.x, obj.a.y - obj.c.y, 0);
        b.set(obj.b.x - obj.c.x, obj.b.y - obj.c.y, 0);
        var dir = a.cross(b).z > 0 ? 0 : 1;
        var r = obj.r.get();
        out.fline('<path d="M $ $ A $ $ 0 $ $ $ $" />', [obj.a.x, obj.a.y, r, r, dir, 1, obj.b.x, obj.b.y]);
      } else if (obj._class === T.CIRCLE) {
        out.fline('<circle cx="$" cy="$" r="$" />', [obj.c.x, obj.c.y, obj.r.get()]);
//      } else if (obj._class === T.DIM || obj._class === T.HDIM || obj._class === T.VDIM) {
      }
    }
    out.line('</g>');
  }
  bbox.inc(20);
  return _format("<svg viewBox='$ $ $ $'>\n", bbox.bbox) + out.data + "</svg>"
};

IO.prototype.dxfExport = function () {
  var T = Types;
  var out = new TextBuilder();
  var bbox = new BBox();
  var toExport = this.getLayersToExport();
  var i;
  bbox.checkLayers(toExport);
  out.line("999");
  out.line("js.parametric.sketcher");
  out.line("0");
  out.line("SECTION");
  out.line("2");
  out.line("HEADER");
  out.line("9");
  out.line("$ACADVER");
  out.line("1");
  out.line("AC1006");
  out.line("9");
  out.line("$INSBASE");
  out.line("10");
  out.line("0");
  out.line("20");
  out.line("0");
  out.line("30");
  out.line("0");
  out.line("9");
  out.line("$EXTMIN");
  out.line("10");
  out.numberln(bbox.bbox[0]);
  out.line("20");
  out.numberln(bbox.bbox[1]);
  out.line("9");
  out.line("$EXTMAX");
  out.line("10");
  out.numberln(bbox.bbox[2]);
  out.line("20");
  out.numberln(bbox.bbox[3]);
  out.line("0");
  out.line("ENDSEC");

  out.line("0");
  out.line("SECTION");
  out.line("2");
  out.line("TABLES");

  for (i = 0; i < toExport.length; i++) {
    out.line("0");
    out.line("LAYER");
    out.line("2");
    out.line("" + (i + 1));
    out.line("70");
    out.line("64");
    out.line("62");
    out.line("7");
    out.line("6");
    out.line("CONTINUOUS");
  }
  out.line("0");
  out.line("ENDTAB");
  out.line("0");
  out.line("ENDSEC");
  out.line("0");
  out.line("SECTION");
  out.line("2");
  out.line("BLOCKS");
  out.line("0");
  out.line("ENDSEC");
  out.line("0");
  out.line("SECTION");
  out.line("2");
  out.line("ENTITIES");

  for (var l = 0; l < toExport.length; l++) {
    var lid = l + 1;
    var layer = toExport[l];
    for (i = 0; i < layer.objects.length; ++i) {
      var obj = layer.objects[i];
      if (obj._class === T.POINT) {
        out.line("0");
        out.line("POINT");
        out.line("8");
        out.line(lid);
        out.line("10");
        out.numberln(obj.x);
        out.line("20");
        out.numberln(obj.y);
        out.line("30");
        out.line("0");
      } else if (obj._class === T.SEGMENT) {
        out.line("0");
        out.line("LINE");
        out.line("8");
        out.line(lid);
        //out.line("62"); color
        //out.line("4");
        out.line("10");
        out.numberln(obj.a.x);
        out.line("20");
        out.numberln(obj.a.y);
        out.line("30");
        out.line("0");
        out.line("11");
        out.numberln(obj.b.x);
        out.line("21");
        out.numberln(obj.b.y);
        out.line("31");
        out.line("0");
      } else if (obj._class === T.ARC) {
        out.line("0");
        out.line("ARC");
        out.line("8");
        out.line(lid);
        out.line("10");
        out.numberln(obj.c.x);
        out.line("20");
        out.numberln(obj.c.y);
        out.line("30");
        out.line("0");
        out.line("40");
        out.numberln(obj.r.get());
        out.line("50");
        out.numberln(obj.getStartAngle() * (180 / Math.PI));
        out.line("51");
        out.numberln(obj.getEndAngle() * (180 / Math.PI));
      } else if (obj._class === T.CIRCLE) {
        out.line("0");
        out.line("CIRCLE");
        out.line("8");
        out.line(lid);
        out.line("10");
        out.numberln(obj.c.x);
        out.line("20");
        out.numberln(obj.c.y);
        out.line("30");
        out.line("0");
        out.line("40");
        out.numberln(obj.r.get());
//      } else if (obj._class === T.DIM || obj._class === T.HDIM || obj._class === T.VDIM) {
      }
    }
  }

  out.line("0");
  out.line("ENDSEC");
  out.line("0");
  out.line("EOF");
  return out.data;
};

IO.exportTextData = exportTextData;

export {IO, BBox};