import {
  AdditiveBlending,
  Mesh,
  MeshBasicMaterial,
  PlaneGeometry,
  Vector3,
} from "three";
import { MapControls } from "three/examples/jsm/controls/MapControls.js";

import OSM from "ol/source/OSM.js";

import Extent from "@giro3d/giro3d/core/geographic/Extent.js";
import Instance from "@giro3d/giro3d/core/Instance.js";
import Map from "@giro3d/giro3d/entities/Map.js";
import ColorLayer from "@giro3d/giro3d/core/layer/ColorLayer.js";
import TiledImageSource from "@giro3d/giro3d/sources/TiledImageSource.js";
import Inspector from "@giro3d/giro3d/gui/Inspector.js";
import StaticImageSource from "@giro3d/giro3d/sources/StaticImageSource.js";

function bindTextInput(id, onChange) {
  const element = document.getElementById(id);
  if (!(element instanceof HTMLInputElement)) {
    throw new Error(
      "invalid binding element: expected HTMLInputElement, got: " +
        element.constructor.name,
    );
  }

  element.onchange = () => {
    if (element.checkValidity()) {
      onChange(element.value);
    }
  };

  const setValue = (v) => {
    element.value = v;
    onChange(element.value);
  };

  const currentValue = element.value;

  return [setValue, currentValue, element];
}

function bindButton(id, onClick) {
  const element = document.getElementById(id);
  if (!(element instanceof HTMLButtonElement)) {
    throw new Error(
      "invalid binding element: expected HTMLButtonElement, got: " +
        element.constructor.name,
    );
  }

  element.onclick = () => {
    onClick(element);
  };

  return element;
}

const extent = new Extent(
  "EPSG:3857",
  -20037508.342789244,
  20037508.342789244,
  -20037508.342789244,
  20037508.342789244,
);

const instance = new Instance({
  target: "view",
  crs: extent.crs,
  backgroundColor: 0x0a3b59,
});

const map = new Map({ extent, backgroundColor: "white" });

instance.add(map);

// Create the OpenStreetMap color layer using an OpenLayers source.
// See https://openlayers.org/en/latest/apidoc/module-ol_source_OSM-OSM.html
// for more informations.
const osm = new ColorLayer({
  name: "osm",
  source: new TiledImageSource({ source: new OSM() }),
});

map.addLayer(osm);

instance.view.camera.position.set(0, 0, 80000000);

const controls = new MapControls(instance.view.camera, instance.domElement);

controls.enableRotate = false;

instance.view.setControls(controls);

Inspector.attach("inspector", instance);

let url = null;

const extentPreview = new Mesh(
  new PlaneGeometry(1, 1, 1, 1),
  new MeshBasicMaterial({
    color: "white",
    opacity: 0.1,
    transparent: true,
    blending: AdditiveBlending,
    depthTest: false,
  }),
);

instance.scene.add(extentPreview);

let topLeftCorner;

function drawExtent() {
  return new Promise((resolve) => {
    let clickCount = 0;

    const onMouseMove = (mouseEvent) => {
      if (topLeftCorner) {
        const picked = instance.pickObjectsAt(mouseEvent)[0];
        if (picked) {
          const currentPoint = picked.point;
          const width = Math.abs(topLeftCorner.x - currentPoint.x);
          const height = Math.abs(topLeftCorner.y - currentPoint.y);

          extentPreview.scale.set(width, height, 1);

          const center = new Vector3().lerpVectors(
            currentPoint,
            topLeftCorner,
            0.5,
          );

          extentPreview.position.copy(center);

          extentPreview.updateMatrixWorld(true);

          instance.notifyChange();
        }
      }
    };

    const onClick = (mouseEvent) => {
      clickCount++;
      const picked = instance.pickObjectsAt(mouseEvent)[0];
      if (picked) {
        controls.enabled = false;
        extentPreview.visible = true;
        const point = picked.point;
        if (clickCount === 1) {
          topLeftCorner = point;
          extentPreview.scale.set(0, 0, 1);
        } else if (clickCount === 2) {
          instance.domElement.removeEventListener("mousedown", onClick);
          instance.domElement.removeEventListener("mousemove", onMouseMove);

          topLeftCorner = null;

          const { x, y } = extentPreview.position;
          const scale = extentPreview.scale;

          controls.enabled = true;

          resolve(
            Extent.fromCenterAndSize(
              instance.referenceCrs,
              { x, y },
              scale.x,
              scale.y,
            ),
          );
        }
      }
    };

    instance.domElement.addEventListener("mousedown", onClick);
    instance.domElement.addEventListener("mousemove", onMouseMove);
  });
}

let currentImage;

const showErrorMessage = (show, message) => {
  const errorElement = document.getElementById("error");
  if (show) {
    errorElement.innerText = `Failed to load remote image: ${message}`;
    errorElement.style.display = "block";
  } else {
    errorElement.style.display = "none";
  }
};

const startButton = bindButton("draw", (button) => {
  button.disabled = true;
  showErrorMessage(false);

  drawExtent().then((extent) => {
    if (currentImage) {
      map.removeLayer(currentImage, { disposeLayer: true });
    }
    const source = new StaticImageSource({
      extent,
      source: url,
    });
    currentImage = new ColorLayer({ source });

    source.addEventListener("loaded", () => (extentPreview.visible = false));
    source.addEventListener("error", ({ error }) => {
      extentPreview.visible = false;

      showErrorMessage(true, error.message);
    });

    map.addLayer(currentImage);
    instance.notifyChange(map);
    button.disabled = false;
  });
});

const [setCurrentUrl, currentUrl] = bindTextInput("url", (v) => {
  url = v;
  startButton.disabled = !url;
});

setCurrentUrl(currentUrl);

<!doctype html>
<html lang="en">
  <head>
    <title>Static image</title>
    <meta charset="UTF-8" />
    <meta name="name" content="static_image_source" />
    <meta
      name="description"
      content="Display a single image on a Map with a &lt;code&gt;StaticImageSource&lt;/code&gt;."
    />
    <meta name="viewport" content="width=device-width, initial-scale=1.0" />

    <link rel="icon" href="https://giro3d.org/images/favicon.svg" />
    <link
      href="https://giro3d.org/assets/bootstrap-custom.css"
      rel="stylesheet"
    />
    <script src="https://giro3d.org/assets/bootstrap.bundle.min.js"></script>
    <link
      rel="stylesheet"
      type="text/css"
      href="https://giro3d.org/latest/css/example.css"
    />
  </head>

  <body>
    <div id="view" class="m-0 p-0 w-100 h-100"></div>
    <div
      id="inspector"
      class="position-absolute top-0 start-0 mh-100 overflow-auto"
    ></div>

    <div class="side-pane-with-status-bar" style="width: 20rem">
      <!--Parameters -->
      <div class="card">
        <div class="card-header">Parameters</div>

        <div class="card-body" id="top-options">
          <!-- Image URL -->
          <div class="input-group mb-3">
            <span class="input-group-text">URL</span>
            <input
              type="url"
              class="form-control"
              id="url"
              required
              value="https://giro3d.org/images/giro3d_logo_big.jpg"
              placeholder="Image URL..."
            />
          </div>

          <!-- Draw extent -->
          <button
            type="button"
            class="btn btn-primary w-100"
            disabled
            id="draw"
          >
            <i class="bi bi-pencil-square"></i>
            Draw extent and load image
          </button>

          <!-- Error message -->
          <div
            class="alert alert-danger m-0 mt-3"
            id="error"
            style="display: none"
            role="alert"
          >
            A simple primary alert—check it out!
          </div>
        </div>
      </div>
    </div>

    <script type="module" src="index.js"></script>
    <script>
      /* activate popovers */
      const popoverTriggerList = [].slice.call(
        document.querySelectorAll('[data-bs-toggle="popover"]'),
      );
      popoverTriggerList.map(
        // bootstrap is used as script in the template, disable warning about undef
        // eslint-disable-next-line no-undef
        (popoverTriggerEl) =>
          new bootstrap.Popover(popoverTriggerEl, {
            trigger: "hover",
            placement: "left",
            content: document.getElementById(
              popoverTriggerEl.getAttribute("data-bs-content"),
            ).innerHTML,
            html: true,
          }),
      );
    </script>
  </body>
</html>

{
    "name": "static_image_source",
    "dependencies": {
        "@giro3d/giro3d": "0.39.0"
    },
    "devDependencies": {
        "vite": "^3.2.3"
    },
    "scripts": {
        "start": "vite",
        "build": "vite build"
    }
}