"use strict";
/*
*  Copyright (C) 1998-2017 by Northwoods Software Corporation. All Rights Reserved.
*/
import * as go from "../release/go";
import { DrawCommandHandlerTool } from "./DrawCommandHandlerTool";
import { RotateMultipleTool } from "./RotateMultipleTool";
import { ResizeMultipleTool } from "./ResizeMultipleTool";
import { GuidedDraggingTool } from "./GuidedDraggingTool";

var myDiagram: go.Diagram = null;
var myOverview: go.Overview = null;

export function init() {
    // displays cached floor plan files in the listbox
    var listbox = document.getElementById("file list") as any;
    for (var key in localStorage) {
      var storedFile = localStorage.getItem(key);
      if (storedFile === null || storedFile === undefined) continue;
      var option = document.createElement('option');
      option.value = key;
      option.text = key;
      listbox.add(option, null)
    }

    var $ = go.GraphObject.make;  // for more concise visual tree definitions

    myDiagram =
      $(go.Diagram, "myDiagramDiv",
        {
          isReadOnly: true  // allow selection but not moving or copying or deleting
        });

    // converts data about the item into a string
    function tooltipTextConverter(data: any) {
      if (data.item != undefined) return data.item;
      return "(unnamed item)";
    }

    // sets the qualities of the tooltip
    var tooltiptemplate =
      $(go.Adornment, go.Panel.Auto,
        $(go.Shape, "RoundedRectangle",
          { fill: "whitesmoke", stroke: "gray" }),
        $(go.TextBlock,
          { margin: 3, editable: true },
          new go.Binding("text", "", tooltipTextConverter)));

    // Define the generic furniture and structure Nodes.
    // The Shape gets its Geometry from a geometry path string in the bound data.
    myDiagram.nodeTemplate =
      $(go.Node, "Spot",
        {
          locationObjectName: "SHAPE",
          locationSpot: go.Spot.Center,
          toolTip: tooltiptemplate,
          selectionAdorned: false  // use a Binding on the Shape.stroke to show selection
        },
        // remember the location of this Node
        new go.Binding("location", "loc", go.Point.parse).makeTwoWay(go.Point.stringify),
        // move a selected part into the Foreground layer, so it isn't obscured by any non-selected parts
        new go.Binding("layerName", "isSelected", function(s) { return s ? "Foreground" : ""; }).ofObject(),
        $(go.Shape,
          {
            name: "SHAPE",
            // the following are default values;
            // actual values may come from the node data object via data-binding
            geometryString: "F1 M0 0 L20 0 20 20 0 20 z",
            fill: "rgb(130, 130, 256)"
          },
          // this determines the actual shape of the Shape
          new go.Binding("geometryString", "geo"),
          // allows the color to be determined by the node data
          new go.Binding("fill", "color"),
          // selection causes the stroke to be blue instead of black
          new go.Binding("stroke", "isSelected", function(s) { return s ? "dodgerblue" : "black"; }).ofObject(),
          // remember the size of this node
          new go.Binding("desiredSize", "size", go.Size.parse),
          // can set the angle of this Node
          new go.Binding("angle", "angle")
        )
      );

    //group settings from basic.html to lock things together
    myDiagram.groupTemplate =
      $(go.Group, go.Panel.Auto,
        { toolTip: tooltiptemplate },
        $(go.Shape, "Rectangle",  // the Group is not seen but can be selected due to the transparent fill
          { fill: "transparent", stroke: "lightgray", strokeWidth: 1 }),
        $(go.Placeholder)
      );

    myOverview =
      $(go.Overview, "myOverviewDiv",
        { observed: myDiagram, maxScale: 0.5 });
    // change color of viewport border in Overview
    (myOverview.box.elt(0) as go.Shape).stroke = "dodgerblue";


    // linear brushes for the gradient of the alert adornment
    var redAlertBrush = go.GraphObject.make(go.Brush, "Linear", { 0: "#EEB4B4", 1: "#FF0000" });
    var greenAlertBrush = go.GraphObject.make(go.Brush, "Linear", { 0: "#BCED91", 1: "#397D02" });

    // Call this to add an Adornment for a particular GraphObject.
    // Pass "" or undefined as the text value to remove any Adornment for that GraphObject.
    function adorn(obj: go.GraphObject, id: number, text: string, color: string, info: string) {
      // for changing the brush
      var red = (color == "red");
      // removes adornment
      if (!text) {
        obj.part.removeAdornment(id.toString());
      } else {
        var $ = go.GraphObject.make;
        var ad =
          $(go.Adornment, "Auto",
            {
              locationSpot: go.Spot.Center,
              mouseOver: function(e: go.InputEvent, obj: go.GraphObject) { displayAlertInfo(e, info) },
              mouseLeave: function(e: go.InputEvent, obj1: go.GraphObject, obj2: go.GraphObject) { hideAlertInfo() }
            },
            $(go.Shape,
              {
                geometryString: "F1 M0,0 L30,0 30,60 15,95 0,60z",
                fill: (red ? redAlertBrush : greenAlertBrush),
                stroke: "black", strokeWidth: 1
              }),
            $(go.TextBlock, text,
              {
                font: "small-caps bold 20px sans-serif",
                stroke: "white",
                textAlign: "center",
                margin: 5
              }));
        var p = obj.getDocumentPoint(go.Spot.Center);
        p.y = p.y - 10;
        ad.location = p;
        ad.adornedObject = obj;
        obj.part.addAdornment(id.toString(), ad);
      }
    }

    // a Part for displaying information about alerts
    var displayBox =
      $(go.Part, go.Panel.Auto, { layerName: "Tool" },
          $(go.Shape, "RoundedRectangle",
              { fill: "whitesmoke", stroke: "red", strokeWidth: 1 }),
          $(go.TextBlock,
              { margin: 3, text: " " }
      ));

    function displayAlertInfo(e: go.InputEvent, myText: string) {
      displayBox.elt(1).text = myText;
      displayBox.move(new go.Point(e.documentPoint.x, e.documentPoint.y));
      myDiagram.add(displayBox);
    }
    function hideAlertInfo() {
      myDiagram.remove(displayBox);
    }

    // simulate some real-time monitoring
    function randomState() {
      // for each node, randomly determines if it will have an alert or not
      for (var i = 0; i < chairArr.length; i++) {
        var node = chairArr[i];
        var randColor = Math.random();
        adorn(node, i,
              (Math.random() < .5 ? "!" : ""),
              (randColor < .5 ? "red" : "green"),
              (randColor < .5 ? "Need assistance." : "Checking in."));
      }
    }

    function loop() {
      setTimeout(function() { randomState(); loop(); }, 5000);
    }
    loop();  // start the simulation
  } //END init

  // keep track of places where people will be and thus will get "alerts"
  var chairArr = new Array();

  // call this after modifying the diagram's contents
  function updateChairArray() {
    chairArr.length = 0;  // clear the Array
    myDiagram.nodes.each(function(node) {
      if (node.data === null) return;
      if (node.data.item === "chair" || node.data.item === "arm chair" || node.data.item === "couch"
          || node.data.item === "queen bed" || node.data.item === "twin bed") {
        chairArr.push(node);
      }
    });
  }

  // opens the selected floorplan in the diagram
  export function load() {
    var str = null;
    var sel = document.getElementById('file list') as any;
    for (var i = 0; i < sel.options.length; i++) {
      if (sel.options[i].selected) {
        str = localStorage.getItem(sel.options[i].text);
      }
    }
    if (str !== null) {
      myDiagram.model = go.Model.fromJson(str);
      myDiagram.undoManager.isEnabled = true;
      updateChairArray();
    }
  }