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piclets
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<script lang="ts">
  interface Props {
    onImageSelected: (image: File) => void;
    isProcessing?: boolean;
  }
  
  let { onImageSelected, isProcessing = false }: Props = $props();
  
  let fileInput: HTMLInputElement;
  let dragActive = $state(false);
  let preview: string | null = $state(null);
  
  function handleFileSelect(e: Event) {
    const target = e.target as HTMLInputElement;
    if (target.files && target.files[0]) {
      processFile(target.files[0]);
    }
  }
  
  function handleDrop(e: DragEvent) {
    e.preventDefault();
    dragActive = false;
    
    if (e.dataTransfer?.files && e.dataTransfer.files[0]) {
      processFile(e.dataTransfer.files[0]);
    }
  }
  
  function handleDragOver(e: DragEvent) {
    e.preventDefault();
    dragActive = true;
  }
  
  function handleDragLeave(e: DragEvent) {
    e.preventDefault();
    dragActive = false;
  }
  
  function processFile(file: File) {
    if (!file.type.startsWith('image/')) {
      alert('Please upload an image file');
      return;
    }
    
    // Create preview
    const reader = new FileReader();
    reader.onload = (e) => {
      preview = e.target?.result as string;
    };
    reader.readAsDataURL(file);
    
    onImageSelected(file);
  }
  
  function triggerFileSelect() {
    fileInput.click();
  }
</script>

<div class="upload-container">
  <h3>Upload Your Photo</h3>
  <p class="subtitle">Upload a photo that will inspire your monster creation</p>
  
  <div 
    class="upload-area"
    class:drag-active={dragActive}
    class:has-preview={preview}
    ondrop={handleDrop}
    ondragover={handleDragOver}
    ondragleave={handleDragLeave}
    onclick={triggerFileSelect}
    onkeypress={(e) => e.key === 'Enter' && triggerFileSelect()}
    role="button"
    tabindex="0"
  >
    {#if preview}
      <img src={preview} alt="Preview" class="preview-image" />
      <div class="overlay">
        <p>Click to change image</p>
      </div>
    {:else}
      <svg class="upload-icon" width="64" height="64" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2">
        <path d="M21 15v4a2 2 0 0 1-2 2H5a2 2 0 0 1-2-2v-4"></path>
        <polyline points="17 8 12 3 7 8"></polyline>
        <line x1="12" y1="3" x2="12" y2="15"></line>
      </svg>
      <p class="upload-text">Drop an image here or click to upload</p>
      <p class="upload-hint">Supports JPG, PNG, GIF</p>
    {/if}
  </div>
  
  <input
    type="file"
    accept="image/*"
    onchange={handleFileSelect}
    bind:this={fileInput}
    class="hidden-input"
    disabled={isProcessing}
  />
</div>

<style>
  .upload-container {
    max-width: 600px;
    margin: 0 auto;
    text-align: center;
  }
  
  h3 {
    margin-bottom: 0.5rem;
    color: #333;
  }
  
  .subtitle {
    color: #666;
    margin-bottom: 2rem;
  }
  
  .upload-area {
    border: 2px dashed #ccc;
    border-radius: 12px;
    padding: 3rem;
    background: #fafafa;
    transition: all 0.3s ease;
    cursor: pointer;
    position: relative;
    overflow: hidden;
  }
  
  .upload-area:hover {
    border-color: #007bff;
    background: #f0f7ff;
  }
  
  .upload-area.drag-active {
    border-color: #007bff;
    background: #e3f2ff;
    transform: scale(1.02);
  }
  
  .upload-area.has-preview {
    padding: 0;
    background: #fff;
  }
  
  .upload-icon {
    color: #007bff;
    margin-bottom: 1rem;
  }
  
  .upload-text {
    font-size: 1.1rem;
    color: #333;
    margin-bottom: 0.5rem;
  }
  
  .upload-hint {
    font-size: 0.9rem;
    color: #666;
  }
  
  .hidden-input {
    display: none;
  }
  
  .preview-image {
    width: 100%;
    height: 400px;
    object-fit: contain;
    display: block;
  }
  
  .overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.7);
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    transition: opacity 0.3s ease;
  }
  
  .upload-area:hover .overlay {
    opacity: 1;
  }
  
  .overlay p {
    color: white;
    font-size: 1.1rem;
  }
</style>