<template>
  <QuickNav selected="Profile"></QuickNav>
  <!-- CONTENT -->
  <section id="Content" class="p-6 pb-24">
    <!-- Heading -->
    <h1 id="ViewHeading" class="text-4xl text-center font-light pt-4 mb-8">
      Achievements & Statistics
    </h1>

    <div>
      Here is a view of the activity you can see.
      <ul class="list-disc list-inside">
        <li>Each identity and claim has a unique position.</li>
        <!-- eslint-disable prettier/prettier --><!-- If we format prettier then there is extra space at the start of the line. -->
        <li>Each will show at their time of appearance relative to all others.</li>
        <li>Note that the ones on the left and right edges are randomized
          because their data isn't all visible to you.
        </li>
        <!-- eslint-enable -->
      </ul>
    </div>

    <div class="mt-3">
      <div v-if="worldProperties.startTime">
        <label>Time Range:&nbsp;</label>
        {{ worldProperties.startTime }}
        -
        {{ worldProperties.endTime }}
      </div>
      <div v-if="worldProperties.animationDurationSeconds">
        <label>Animation Time:&nbsp;</label>
        {{ worldProperties.animationDurationSeconds }} seconds
      </div>
    </div>
    <button class="float-right" @click="captureGraphics()">Screenshot</button>
    <div id="scene-container" class="h-screen"></div>
    <AlertMessage
      :alertTitle="alertTitle"
      :alertMessage="alertMessage"
    ></AlertMessage>   
  </section>
</template>
<script lang="ts">
import { SVGRenderer } from "three/addons/renderers/SVGRenderer.js";
import { Component, Vue } from "vue-facing-decorator";
import { World } from "@/components/World/World.js";
import AlertMessage from "@/components/AlertMessage";
import QuickNav from "@/components/QuickNav";

@Component({ components: { AlertMessage, World, QuickNav } })
export default class StatisticsView extends Vue {
  world: World;
  worldProperties: WorldProperties = {};
  alertTitle = "";
  alertMessage = "";

  mounted() {
    try {
      const container = document.querySelector("#scene-container");
      const newWorld = new World(container, this);
      newWorld.start();
      this.world = newWorld;
    } catch (err) {
      console.log(err);
      this.alertTitle = "Mounting error";
      this.alertMessage = err.message;
    }
  }

  public captureGraphics() {
    /**
     * This yields an SVG that only shows white and black highlights
     // from https://stackoverflow.com/questions/27632621/exporting-from-three-js-scene-to-svg-or-other-vector-format
     **/
    const rendererSVG = new SVGRenderer();
    rendererSVG.setSize(window.innerWidth, window.innerHeight);
    rendererSVG.render(this.world.scene, this.world.camera);
    ExportToSVG(rendererSVG, "test.svg");
  }

  public setWorldProperty(propertyName, propertyValue) {
    this.worldProperties[propertyName] = propertyValue;
  }
}

function ExportToSVG(rendererSVG, filename) {
  const XMLS = new XMLSerializer();
  const svgfile = XMLS.serializeToString(rendererSVG.domElement);
  const svgData = svgfile;
  const preface = '<?xml version="1.0" standalone="no"?>\r\n';
  const svgBlob = new Blob([preface, svgData], {
    type: "image/svg+xml;charset=utf-8",
  });
  const svgUrl = URL.createObjectURL(svgBlob);
  const downloadLink = document.createElement("a");

  downloadLink.href = svgUrl;
  downloadLink.download = filename;
  document.body.appendChild(downloadLink);
  downloadLink.click();
  document.body.removeChild(downloadLink);
}
</script>