import { Component, OnInit, ViewEncapsulation } from '@angular/core';
import * as _ from 'lodash';
import * as joint from 'jointjs';
import './palette.function.element';

@Component({
  selector: 'app-designer',
  templateUrl: './designer.component.html',
  styleUrls: ['./designer.component.css'],
  encapsulation: ViewEncapsulation.None
})
export class DesignerComponent implements OnInit {

  private controllerSideBar: boolean;
  private attributesSideBar: boolean;

  boardGraph: joint.dia.Graph;
  boardPaper: joint.dia.Paper;

  paletteGraph: joint.dia.Graph;
  palettePaper: joint.dia.Paper;

  constructor() {
    this.controllerSideBar = true;
    this.attributesSideBar = false;
  }
  private _toggleSidebar1() {
    this.controllerSideBar = !this.controllerSideBar;
  }
  private _toggleSidebar2() {
    this.attributesSideBar = !this.attributesSideBar;
  }


  /**
   * - There is a board (main paper) that will the action and function selected from the palette
   * itmes in this board will be used to create tosca workflow and node templates
   * - There is also palette , whis contains all the possible functions and actions
   * that can be dragged into the board
   * - There is also a fly paper , which is temporarliy paper created on the fly
   * when items is dragged from the palette- and it's deleted when the item is dropped over
   * the board.
   * for more info about the drag and drop algorithem used please visit the following link:
   * https://stackoverflow.com/a/36932973/1340034
   */

  ngOnInit() {
    this.initializeBoard();
    this.initializePalette();
    // this.createEditBarOverThePaper();
    const list = [
      { modelName: 'component-netconf-executor'},
      { modelName: 'component-remote-ansible-executor' },
      { modelName: 'dg-generic' },
      { modelName: 'component-resource-resolution' }];

    const cells = this.buildPaletteGraphFromList(list);
    this.paletteGraph.resetCells(cells);

    let idx = 0;
    cells.forEach(cell => {
      console.log(cell);
      cell.translate(5, (cell.attributes.size.height + 5) * idx++);

    });
    this.stencilPaperEventListeners();
  }

  initializePalette() {
    if (!this.paletteGraph) {
      this.paletteGraph = new joint.dia.Graph();
      this.palettePaper = new joint.dia.Paper({
        el: $('#palette-paper'),
        model: this.paletteGraph,
        height: 300,
        width: 300,
        gridSize: 1,
        interactive: false
      });
    }
  }

  initializeBoard() {
    if (!this.boardGraph) {
      this.boardGraph = new joint.dia.Graph();
      this.boardPaper = new joint.dia.Paper({
          el: $('#board-paper'),
          model: this.boardGraph,
          height: 720,
          width: 1200,
          gridSize: 10,
          drawGrid: true,
          background: {
            color: 'rgba(0, 255, 0, 0.3)'
          },
          cellViewNamespace: joint.shapes
        });

      this.boardPaper.on('all', element => {
        // console.log(element);
      });

      this.boardPaper.on('link:pointerdown', link => {
        console.log(link);
      });

      this.boardPaper.on('element:pointerdown', element => {
        // this.modelSelected.emit(element.model.get('model'));
      });

      this.boardPaper.on('blank:pointerclick', () => {
        // this.selectedModel = undefined;
      });
    }
  }

  buildPaletteGraphFromList(list: any) {
    const elements = [];

    console.log(list);
    list.forEach(element => {
      elements.push(this.createFuctionElementForPalette(element.modelName));
    });

    return elements;
  }


  createFuctionElementForPalette(label: string) {
    const element = new joint.shapes.app.FunctionElement({
      id: label});
    element.attr('#label/text', label);
    return element;
  }

  stencilPaperEventListeners() {
    this.palettePaper.on('cell:pointerdown', (draggedCell, pointerDownEvent, x, y) => {
      console.log('pointerdown 2');

      $('body').append(`
        <div id="flyPaper"
            style="position:fixed;z-index:100;opacity:.7;pointer-event:none;background-color: transparent !important;"></div>`
        );
      const flyGraph = new joint.dia.Graph();
      const flyPaper = new joint.dia.Paper({
          el: $('#flyPaper'),
          model: flyGraph,
          interactive: true
        });
      const flyShape = draggedCell.model.clone();
      const pos = draggedCell.model.position();
      const offset = {
        x: x - pos.x,
        y: y - pos.y
      };

      flyShape.position(0, 0);
      flyGraph.addCell(flyShape);
      $('#flyPaper').offset({
        left: pointerDownEvent.pageX - offset.x,
        top: pointerDownEvent.pageY - offset.y
      });
      $('body').on('mousemove.fly', mouseMoveEvent => {
        $('#flyPaper').offset({
          left: mouseMoveEvent.pageX - offset.x,
          top: mouseMoveEvent.pageY - offset.y
        });
      });

      $('body').on('mouseup.fly', mouseupEvent => {
        const mouseupX = mouseupEvent.pageX;
        const mouseupY = mouseupEvent.pageY;
        const target = this.boardPaper.$el.offset();
        // Dropped over paper ?
        if (mouseupX > target.left &&
          mouseupX < target.left + this.boardPaper.$el.width() &&
          mouseupY > target.top && y < target.top + this.boardPaper.$el.height()) {
          const clonedShape = flyShape.clone();

          clonedShape.position(mouseupX - target.left - offset.x, mouseupY - target.top - offset.y);
          this.boardGraph.addCell(clonedShape);
          const cellViewsBelow =
            this.boardPaper.findViewsFromPoint(clonedShape.getBBox().center());

          if (cellViewsBelow.length) {
            let cellViewBelow;
            cellViewsBelow.forEach( cellItem => {
              if (cellItem.model.id !== clonedShape.id) {
                cellViewBelow = cellItem;
              }
            });
            // Prevent recursive embedding.
            if (cellViewBelow && cellViewBelow.model.get('parent') !== clonedShape.id) {
              cellViewBelow.model.embed(clonedShape);
            }
          }

        }
        $('body').off('mousemove.fly').off('mouseup.fly');
        // flyShape.remove();
        $('#flyPaper').remove();
      });
    });
  }

  /**
   * this is a way to add the button like zoom in , zoom out , and source over jointjs paper
   * may be used if no other way is found
   */
  // createEditBarOverThePaper() {
  //   joint.shapes["html"] = {};
  //   joint.shapes["html"].Element = joint.shapes.basic.Rect.extend({
  //     defaults: joint.util.deepSupplement({
  //       type: 'html.Element'
  //     }, joint.shapes.basic.Rect.prototype.defaults)
  //   });
  //   joint.shapes["html"].ElementView = joint.dia.ElementView.extend({

  //     template: [
  //       '<div>',
  //       '<div id="editbar" class="editBar text-center">',
  //       '<div class="btn-group mr-2" role="group" aria-label="First group">',
  //       '<button type="button" class="btn btn-secondary tooltip-bottom" data-tooltip="Undo">',
  //       '<img src="/assets/img/icon-undoActive.svg">',
  //       '</button>',
  //       '<button type="button" class="btn btn-secondary tooltip-bottom" data-tooltip="Redo">',
  //       '<img src="/assets/img/icon-redo.svg">',
  //       '</button>',
  //       '</div>',
  //       '<div class="btn-group mr-2" role="group" aria-label="Second group">',
  //       '<button type="button" class="btn btn-secondary tooltip-bottom" data-tooltip="Zoom Out">',
  //       '<img src="/assets/img/icon-zoomOut.svg">',
  //       '</button>',
  //       '<button type="button" class="btn btn-secondary pl-0 pr-0">100%</button>',
  //       '<button type="button" class="btn btn-secondary tooltip-bottom" data-tooltip="Zoom In">',
  //       '<img src="/assets/img/icon-zoomIn.svg">',
  //       '</button>',
  //       '</div>',
  //       '<div class="btn-group viewBtns" role="group" aria-label="Third group">',
  //       '<button type="button" class="btn btn-secondary topologySource active">View</button>',
  //       '<button type="button" class="btn btn-secondary topologyView">Source</button>',
  //       '</div>',
  //       '</div>',
  //       '</div>'
  //     ].join(''),
  //     initialize: function () {
  //       _.bindAll(this, 'updateBox');
  //       joint.dia.ElementView.prototype.initialize.apply(this, arguments);

  //       this.$box = $(_.template(this.template)());
  //       // Prevent paper from handling pointerdown.
  //       this.$box.find('input,select').on('mousedown click', function (evt) {
  //         evt.stopPropagation();
  //       });
  //       this.model.on('change', this.updateBox, this);
  //       this.updateBox();
  //     },
  //     render: function () {
  //       joint.dia.ElementView.prototype.render.apply(this, arguments);
  //       this.paper.$el.prepend(this.$box);
  //       this.updateBox();
  //       return this;
  //     },
  //     updateBox: function () {
  //       // Set the position and dimension of the box so that it covers the JointJS element.
  //       var bbox = this.model.getBBox();
  //       this.$box.css({
  //         width: bbox.width,
  //         height: bbox.height,
  //         left: bbox.x,
  //         top: bbox.y,
  //         transform: 'rotate(' + (this.model.get('angle') || 0) + 'deg)'
  //       });
  //     }
  //   });

  // }
}