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odyssey-frontend
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<script lang="ts">
  import { onMount, onDestroy } from 'svelte';
  import { extractFinalFrame } from '$lib/utils/video';

  export let videoUrl: string | undefined;
  export let onVideoEnd: ((finalFrame: Blob) => void) | undefined = undefined;
  export let onError: ((error: string) => void) | undefined = undefined;

  let videoElement: HTMLVideoElement;
  let isPlaying = false;
  let hasError = false;
  let errorMessage = '';

  onMount(() => {
    if (videoElement) {
      videoElement.addEventListener('ended', handleVideoEnd);
      videoElement.addEventListener('error', handleError);
    }
  });

  onDestroy(() => {
    if (videoElement) {
      videoElement.removeEventListener('ended', handleVideoEnd);
      videoElement.removeEventListener('error', handleError);
    }
  });

  async function handleVideoEnd() {
    if (!videoElement) return;

    try {
      // Extract the final frame for continuity
      const finalFrame = await extractFinalFrame(videoElement);
      onVideoEnd?.(finalFrame);
    } catch (error) {
      console.error('Failed to extract final frame:', error);
      const errorMsg = error instanceof Error ? error.message : 'Unknown error';
      handleError(new Error(`Failed to extract final frame: ${errorMsg}`));
    }
  }

  function handleError(error: Event | Error) {
    hasError = true;

    if (error instanceof Error) {
      errorMessage = error.message;
    } else {
      const videoError = videoElement?.error;
      errorMessage = videoError
        ? `Video error (code ${videoError.code}): ${videoError.message}`
        : 'Failed to load video';
    }

    onError?.(errorMessage);
  }

  function handlePlay() {
    isPlaying = true;
  }

  function handlePause() {
    isPlaying = false;
  }

  // Reset error when video URL changes
  $: if (videoUrl) {
    hasError = false;
    errorMessage = '';
  }
</script>

<div class="video-player-container">
  {#if videoUrl}
    {#if !hasError}
      <video
        bind:this={videoElement}
        src={videoUrl}
        controls
        autoplay
        class="video-player"
        on:play={handlePlay}
        on:pause={handlePause}
      >
        <track kind="captions" />
      </video>
    {:else}
      <div class="error-container">
        <p class="error-message">❌ {errorMessage}</p>
      </div>
    {/if}
  {:else}
    <div class="placeholder">
      <p>No video loaded</p>
    </div>
  {/if}
</div>

<style>
  .video-player-container {
    width: 100%;
    max-width: 1280px;
    margin: 0 auto;
    background: #000;
    border-radius: 0.5rem;
    overflow: hidden;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
  }

  .video-player {
    width: 100%;
    height: auto;
    display: block;
  }

  .placeholder,
  .error-container {
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 400px;
    background: #1a1a1a;
    color: #999;
  }

  .placeholder p {
    font-size: 1.1rem;
    margin: 0;
  }

  .error-message {
    color: #ff6b6b;
    font-size: 1rem;
    margin: 0;
    padding: 2rem;
    text-align: center;
  }

  @media (max-width: 768px) {
    .placeholder,
    .error-container {
      min-height: 250px;
    }

    .placeholder p,
    .error-message {
      font-size: 0.9rem;
    }
  }
</style>