window.addEventListener("load", async () => {
  try {
    await Scheme.load_main("game.wasm", {
      user_imports: {
        window: {
          get: () => window,
          innerWidth: () => window.innerWidth,
          innerHeight: () => window.innerHeight,
          requestAnimationFrame: (f) => window.requestAnimationFrame(f),
          setTimeout: (f, delay) => window.setTimeout(f, delay)
        },
        document: {
          get: () => document,
          body: () => document.body,
          getElementById: (id) => document.getElementById(id),
          createTextNode: (text) => document.createTextNode(text),
          createElement: (tag) => document.createElement(tag)
        },
        element: {
          value: (elem) => elem.value,
          setValue: (elem, value) => elem.value = value,
          width: (elem) => elem.width,
          height: (elem) => elem.height,
          setWidth: (elem, width) => elem.width = width,
          setHeight: (elem, height) => elem.height = height,
          appendChild: (parent, child) => parent.appendChild(child),
          setAttribute: (elem, name, value) => elem.setAttribute(name, value),
          removeAttribute: (elem, name) => elem.removeAttribute(name),
          remove: (elem) => elem.remove(),
          replaceWith: (oldElem, newElem) => oldElem.replaceWith(newElem),
          clone: (elem) => elem.cloneNode()
        },
        event: {
          addEventListener: (target, type, listener) => target.addEventListener(type, listener),
          removeEventListener: (target, type, listener) => target.removeEventListener(type, listener),
          preventDefault: (event) => event.preventDefault(),
          keyboardCode: (event) => event.code
        },
        image: {
          new: (src) => {
            const img = new Image();
            img.src = src;
            return img;
          }
        },
        media: {
          newAudio: (src) => new Audio(src),
          play: (media) => media.play(),
          pause: (media) => media.pause(),
          volume: (media) => media.volume,
          setVolume: (media, volume) => media.volume = volume,
          setLoop: (media, loop) => media.loop = (loop == 1),
          seek: (media, time) => media.currentTime = time
        },
        canvas: {
          getContext: (elem, type) => elem.getContext(type),
          setFillColor: (ctx, color) => ctx.fillStyle = color,
          setFont: (ctx, font) => ctx.font = font,
          setTextAlign: (ctx, align) => ctx.textAlign = align,
          clearRect: (ctx, x, y, w, h) => ctx.clearRect(x, y, w, h),
          fillRect: (ctx, x, y, w, h) => ctx.fillRect(x, y, w, h),
          fillText: (ctx, text, x, y) => ctx.fillText(text, x, y),
          drawImage: (ctx, image, sx, sy, sw, sh, dx, dy, dw, dh) => ctx.drawImage(image, sx, sy, sw, sh, dx, dy, dw, dh),
          setScale: (ctx, sx, sy) => ctx.scale(sx, sy),
          setTransform: (ctx, a, b, c, d, e, f) => ctx.setTransform(a, b, c, d, e, f),
          setImageSmoothingEnabled: (ctx, enabled) => ctx.imageSmoothingEnabled = (enabled == 1)
        },
        math: {
          random: () => Math.random()
        }
      }
    });
  } catch(e) {
    if(e instanceof WebAssembly.CompileError) {
      document.getElementById("wasm-error").hidden = false;
    }
    throw e;
  }
});