import { type FrameTime, type InitConfig } from '$/lib/Player/Video';
import ThreeVideo, { OnceCell } from './ThreeVideo';
import AudioURL from './03. Lemaitre, Jennie A. - Closer - 40sec version.flac?url'
import * as THREE from 'three';
import { RoundedBoxGeometry } from 'three/examples/jsm/geometries/RoundedBoxGeometry.js';

type FontInfo = {
  family: string, size: number, weight?: number
}
const renderText = (ctx: CanvasRenderingContext2D, text: string, color: string, fontInfo: FontInfo, { x, y }: { x: number, y: number }, align = 'left' as CanvasTextAlign) => {
  ctx.font = `normal normal ${fontInfo.weight ?? 400} ${fontInfo.size}px ${fontInfo.family}`;
  ctx.fillStyle = color
  ctx.textAlign = align
  ctx.fillText(text, x, y)
}
const getTextSize = (ctx: CanvasRenderingContext2D, text: string, fontInfo: FontInfo) => {
  ctx.font = `normal normal ${fontInfo.weight ?? 400} ${fontInfo.size}px ${fontInfo.family}`;
  return ctx.measureText(text)
}

const lerp = (t: number, initial: number, final: number) => {
  return initial + ((final - initial) * t)
}
const bezier = (t: number, initial: number, p1: number, p2: number, final: number) => {
  return (1 - t) * (1 - t) * (1 - t) * initial
    +
    3 * (1 - t) * (1 - t) * t * p1
    +
    3 * (1 - t) * t * t * p2
    +
    t * t * t * final;
}

export default class Video extends ThreeVideo {
  protected ctx!: CanvasRenderingContext2D
  protected isPreview = false;
  protected px(pixels: number) {
    return this.isPreview ? pixels / 1.5 : pixels
  }
  public async init(config: InitConfig): Promise<void> {
    const { isPreview } = config
    this.isPreview = isPreview
    this.resize(this.px(1920), this.px(1080))
    this.ctx = this.canvas.getContext('2d', {
      willReadFrequently: !isPreview,
      desynchronized: isPreview,
    })!
    const threeInit = super.init(config).catch(e => ([1, e] as const))

    // const v = document.createElement('video')
    // v.load()
    // await new Promise((rs, rj) => {
    //   let debounce = false;
    //   const timeout = setTimeout(() => {
    //     if (!debounce) rj('Failed to load video - timed out.')
    //   }, 1000);
    //   v.addEventListener('load', () => {
    //     rs(void 0)
    //     clearTimeout(timeout)
    //   }, {
    //     once: true
    //   })
    // })
    const rs = await threeInit
    if (rs && rs[0] === 1) { console.error(rs[1]); throw new Error('Failed to initialize ThreeJS!'); }
  }
  protected uiGeometry = OnceCell(() => new THREE.BoxGeometry(0.1, 5, 7));
  protected uiDarkMaterial = OnceCell(() => new THREE.MeshStandardMaterial({
    roughness: 0.8,
    color: 0xffffff,
    metalness: 0.2,
    bumpScale: 1
  }));
  protected uiDark = OnceCell(() => new THREE.Mesh(this.uiGeometry(), this.uiDarkMaterial()))
  protected uiLightMaterial = OnceCell(() => new THREE.MeshBasicMaterial({ color: 0x000000 }))
  protected uiLight = OnceCell(() => new THREE.Mesh(this.uiGeometry(), this.uiLightMaterial()))
  protected lighting = OnceCell(() => {
    const dirLight = new THREE.DirectionalLight(0xffffff, 3);
    dirLight.castShadow = true;
    dirLight.shadow.camera.top = 0;
    dirLight.shadow.camera.bottom = 0;
    dirLight.shadow.camera.left = 0;
    dirLight.shadow.camera.right = 0;
    dirLight.shadow.camera.near = 0.1;
    dirLight.shadow.camera.far = 90;

    const cam = dirLight.shadow.camera;
    cam.top = cam.right = 0;
    cam.bottom = cam.left = 0;
    cam.near = 3;
    cam.far = 8;
    dirLight.shadow.mapSize.set(1024, 1024);

    return dirLight;
  })
  protected uiCanvas = OnceCell(() => {
    const c = document.createElement('canvas');
    c.width = this.px(1000);
    c.height = c.width / 5 * 7;
    return c;
  });
  protected uiCanvasCtx = OnceCell(() => this.uiCanvas().getContext('2d', {
    alpha: true,
  }))
  protected drawUiCanvas() { }
  public renderFrame(time: FrameTime): Promise<void> | void {
    const beat = 1 + ((time.seconds - 0.098) * (92 / 60))
    const center = [this.w / 2, this.h / 2] as const
    this.ctx.fillStyle = '#fff';
    this.ctx.fillRect(0, 0, this.w, this.h);

    this.scene.background = null;

    const AdDefault: FontInfo = {
      // family: 'Inter Variable',
      family: 'Adwaita Sans',
      size: this.px(58),
      weight: 450
    }
    switch (true) {
      case beat < 1:
        break;
      case beat >= 1 && beat < 4.3:
        renderText(this.ctx, `Need a new AI assistant?`, '#646663', AdDefault, { x: center[0], y: center[1] }, 'center')
        break;
      case beat >= 4.3 && beat < 8.4: {
        const text = `Like${beat >= 4.8 ? ' new' : ''}${beat >= 5.02 ? ' new?' : ''}`;
        const longTextWidth = getTextSize(this.ctx, 'Like new new?', AdDefault)
        renderText(this.ctx, text, '#646663', AdDefault, { x: center[0] - longTextWidth.width / 2, y: center[1] }, 'start')
        break;
      }
      case beat >= 8.4 && beat < 13: {
        const text = `Like${beat >= 9 ? ` has a hyprminimal design` : ''}${beat >= 11 ? ' new' : ''}`;
        const longTextWidth = getTextSize(this.ctx, `Like has a hyprminimal design new`, AdDefault)
        renderText(this.ctx, text, '#646663', AdDefault, { x: center[0] - longTextWidth.width / 2, y: center[1] }, 'start')
        break;
      }
      case beat >= 13 && beat < 15: {
        this.scene.background = new THREE.Color(0x000000);

        this.scene.add(this.lighting())

        this.scene.add(this.uiDark());
        const progress = (beat - 13) / 3.5
        this.uiDark().rotation.x = bezier(progress, 0.4, 0.6, 0.6, 1.1);
        this.uiDark().rotation.y = bezier(progress, 2, 1.7, 1.6, bezier(progress, 1, 0.8, 0.3, -0.5));
        this.camera.position.z = bezier(progress, 6, 4, 4, bezier(progress, 7, 9, 15, 25));
        this.lighting().position.set(0, 0, this.camera.position.z);
        this.renderScene(this.ctx)
        this.scene.remove(this.uiDark());
        this.scene.remove(this.lighting())
        break;
      }
      case beat >= 15 && beat < 16: {
        this.scene.background = new THREE.Color(0x000000);

        this.scene.add(this.lighting())

        this.scene.add(this.uiDark());
        const progress = (beat - 15)
        this.uiDark().rotation.x = bezier(progress, -0.5, -0.5, -0.5, -0.5);
        this.uiDark().rotation.y = bezier(progress, 0.7, 0.6, 0.4, 0.4);
        this.camera.position.z = bezier(progress, 4, 5, 5, 8);
        this.lighting().position.set(-0.5, 0, this.camera.position.z);
        this.renderScene(this.ctx)
        this.scene.remove(this.uiDark());
        this.scene.remove(this.lighting())
        break;
      }
      case beat >= 16 && beat < 18.4: {
        this.scene.add(this.uiLight());
        const progress = (beat - 16) / 3.5
        this.uiLight().rotation.x = bezier(progress, -0.5, 0.6, 0.6, 1.1) * (beat < 17 ? 1 : -1);
        this.uiLight().rotation.y = bezier(progress, 0.4, 1.7, 1.8, 2) * (beat < 17 ? 1 : -1);
        this.camera.position.z = bezier(progress, 8, 4, 4, 12);

        this.renderScene(this.ctx)
        this.scene.remove(this.uiLight());
        break;
      }
      case beat >= 18.4 && beat < 22.8: {
        const text = `Efficiency ${beat >= 19 ? `so hyprefficient, ` : ''}${beat >= 20 ? 'we created it' : ''}${beat >= 21 ? ' hypr' + (beat >= 22.1 ? 'new' : '') : ''}`;
        const longTextWidth = getTextSize(this.ctx, `Efficiency so hyprefficient, we created it hyprnew`, AdDefault)
        renderText(this.ctx, text, '#646663', AdDefault, { x: center[0] - longTextWidth.width / 2, y: center[1] }, 'start')
        break;
      }
      case beat >= 22.8 && beat < 25:
        // TODO: add animation for hyprefficient
        renderText(this.ctx, `TODO`, '#ff000099', AdDefault, { x: center[0], y: center[1] }, 'center')
        break;
      case beat >= 25 && beat < 31 || beat < 33: {
        const text = `1 month free ${beat >= 26.5 ? 'for a hypr' : ''}${beat >= 26.7 ? 'local Mistral 7b' : ''}${beat >= 29 ? ' new' : ''}`;
        const longTextWidth = getTextSize(this.ctx, `1 month free for a hyprlocal Mistral 7b new`, AdDefault)
        renderText(this.ctx, text, '#646663', AdDefault, { x: center[0] - longTextWidth.width / 2, y: center[1] }, 'start')
        renderText(this.ctx, '*Not guaranteed to work. Subscriptions start at 69.99CHF/mo and get billed on the first of the next month automatically.', '#64666366', { ...AdDefault, size: 12, weight: 400 }, { x: center[0], y: this.h - this.px(44) }, 'center')
        renderText(this.ctx, 'Cancellable only within 12 hours of the first day of the month.', '#64666366', { ...AdDefault, size: 12, weight: 400 }, { x: center[0], y: this.h - this.px(24) }, 'center')
        break;
      }
      case beat >= 31 && beat < 33://&& beat < 33:
        // TODO: add animation for hyprsubscription
        renderText(this.ctx, `i've already dumped too much time into this pls contribute`, '#ff000099', AdDefault, { x: center[0], y: center[1] }, 'center')
        break;
      case beat >= 33 && beat < 41: {
        if (beat >= 34.75) {
          this.ctx.fillStyle = '#23f';
          this.ctx.fillRect(0, 0, this.w, this.h);
          // renderText(this.ctx, `Need a new AI assistant?`, '#646663', AdDefault, { x: center[0], y: center[1] }, 'center')
        }
        const text = `Accents ${beat >= 34.5 ? `so ` : ''}${beat >= 34.75 ? 'hyprblue, ' : ''}${beat >= 35.8 ? 'we created them' : ''}${beat >= 37 ? ' hypr' + (beat >= 38.1 ? 'new' : '') : ''}`;
        const longTextWidth = getTextSize(this.ctx, `Accents so hyprblue, we created them hyprnew`, AdDefault)
        renderText(this.ctx, text, beat >= 34.75 ? '#ffffff' : '#646663', AdDefault, { x: center[0] - longTextWidth.width / 2, y: center[1] }, 'start')
        break;
      }

      case beat >= 49 && beat < 56.8: {
        const opacity1 = Math.min(Math.max(Math.floor(255 - lerp((beat - 50) * 1.1, 255, 0)), 0), 255).toString(16).padStart(2, '0')
        const opacity2 = Math.min(Math.max(Math.floor(255 - lerp((beat - 52.7) * 1.1, 255, 0)), 0), 255).toString(16).padStart(2, '0')
        const text1 = `Introducing `;
        const text2 = `HyprAI`;
        const longTextWidth = getTextSize(this.ctx, `Introducing HyprAI`, AdDefault)
        const shortTextWidth = getTextSize(this.ctx, `Introducing `, AdDefault)
        renderText(this.ctx, text1, '#646663' + opacity1, AdDefault, { x: center[0] - longTextWidth.width / 2, y: center[1] }, 'start')
        renderText(this.ctx, text2, '#646663' + opacity2, AdDefault, { x: (center[0] - longTextWidth.width / 2) + shortTextWidth.width, y: center[1] }, 'start')
        break;
      }
      case beat >= 56.8 && beat < 67: {
        renderText(this.ctx, beat < 61 ? `AI assistant by Hyprland` : 'Who knew?', '#646663', AdDefault, { x: center[0], y: center[1] }, 'center')
        if (beat < 61)
          renderText(this.ctx, `*This ad is satire vaxry please don't sue me`, '#64666366', {
            ...AdDefault,
            size: 12,
            weight: 400
          }, { x: center[0], y: this.h - this.px(24) }, 'center')
        // fall-thru
      }
      case beat >= 64: {
        if (beat >= 64) {
          // needed due to fallthru
          // TODO: animate ui going up over text
        }
        break;
      }
      default:
        break;
    }
    if (this.isPreview)
      renderText(this.ctx, `${(Math.floor(beat * 10) / 10).toFixed(1)}`, '#646663', { ...AdDefault, size: this.px(12), weight: 400 }, { x: this.w - this.px(4), y: this.h - this.px(4) }, 'end')
  }
  public cleanup(): void {
    this.uiCanvas().remove()
    super.cleanup()
  }
  public fps = 59.94;
  // public fps = 119.88;
  // public fps = 30;
  public length = Math.ceil(43.5 * this.fps);
  public audioUrl = ['03. Lemaitre, Jennie A. - Closer.flac', AudioURL] as const
}