<template>
    <div class="input-section">
      <div class="header-section">
        <div class="logo-container">
          <div class="logo-icon">AI</div>
        </div>
        <div class="header-content">
          <h1 class="title">文案生成工具</h1>
          <p class="subtitle">智能改写，提升文案质量</p>
        </div>
        <button @click="$emit('toggle-settings')" class="settings-button">
          <span class="settings-icon">⚙️</span>
        </button>
      </div>
      
      <ModelSelector 
        :selectedModel="selectedModel"
        :availableModels="availableModels"
        @update:selectedModel="$emit('update:selectedModel', $event)"
      />
      
      <RewriteMode 
        :mode="mode"
        :generationCount="generationCount"
        @update:mode="$emit('update:mode', $event)"
        @update:generationCount="$emit('update:generationCount', $event)"
      />
      
      <div class="original-text-section">
        <h2 class="section-title">
          <span class="section-icon">📝</span>
          原始文案
          <span v-if="originalText" class="char-count">{{ originalText.length }} 字</span>
        </h2>
        <textarea 
          :value="originalText"
          @input="$emit('update:originalText', $event.target.value)"
          class="text-input"
          placeholder="请在此输入需要改写的文本..."
        ></textarea>
      </div>
      
      <button 
        :disabled="isGenerating"
        @click="$emit('rewrite')"
        class="rewrite-button"
      >
        <span v-if="isGenerating" class="loading-spinner"></span>
        <span v-else>{{ mode === 'single' ? '生成改写' : '批量生成' }}</span>
      </button>
    </div>
  </template>
  
  <script setup>
  import ModelSelector from './ModelSelector.vue'
  import RewriteMode from './RewriteMode.vue'
  
  defineProps({
    mode: String,
    originalText: String,
    generationCount: Number,
    selectedModel: String,
    availableModels: Array,
    isGenerating: Boolean
  })
  
  defineEmits([
    'update:mode',
    'update:originalText',
    'update:generationCount',
    'update:selectedModel',
    'rewrite',
    'toggle-settings'
  ])
  </script>
  
  <style scoped>
  .input-section {
    flex: 0 0 40%;
    max-width: 600px;
    min-width: 320px;
    background-color: white;
    border-radius: 16px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
    padding: 28px;
    display: flex;
    flex-direction: column;
    overflow-y: auto;
    transition: all 0.3s ease;
    backdrop-filter: blur(10px);
    background-color: rgba(255, 255, 255, 0.9);
  }
  
  :deep(.dark-mode) .input-section {
    background-color: rgba(30, 30, 46, 0.9);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.3);
  }
  
  /* Logo 样式 */
  .header-section {
    display: flex;
    align-items: center;
    gap: 16px;
    margin-bottom: 28px;
    position: relative;
  }
  
  .header-content {
    flex: 1;
  }
  
  .logo-container {
    display: flex;
    align-items: center;
    justify-content: center;
  }
  
  .logo-icon {
    width: 48px;
    height: 48px;
    background: linear-gradient(135deg, #2ecc71, #27ae60);
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-weight: bold;
    font-size: 20px;
    box-shadow: 0 4px 12px rgba(46, 204, 113, 0.3);
  }
  
  /* 设置按钮 */
  .settings-button {
    width: 40px;
    height: 40px;
    border-radius: 10px;
    background-color: #f5f5f5;
    border: none;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: all 0.3s ease;
  }
  
  .settings-button:hover {
    background-color: #e0e0e0;
    transform: rotate(30deg);
  }
  
  .settings-icon {
    font-size: 20px;
  }
  
  :deep(.dark-mode) .settings-button {
    background-color: #2d2d3a;
    color: #f0f0f0;
  }
  
  :deep(.dark-mode) .settings-button:hover {
    background-color: #3d3d4a;
  }
  
  /* 标题样式 */
  .title {
    font-size: 24px;
    font-weight: 700;
    margin: 0 0 4px 0;
    background: linear-gradient(90deg, #2ecc71, #27ae60);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    text-fill-color: transparent;
  }
  
  .subtitle {
    color: #666;
    margin: 0;
    font-size: 14px;
  }
  
  :deep(.dark-mode) .subtitle {
    color: #aaa;
  }
  
  .section-title {
    font-size: 18px;
    font-weight: 600;
    margin: 0 0 16px 0;
    color: #333;
    display: flex;
    align-items: center;
    gap: 8px;
  }
  
  :deep(.dark-mode) .section-title {
    color: #f0f0f0;
  }
  
  .section-icon {
    font-size: 20px;
  }
  
  /* 字数统计 */
  .char-count {
    font-size: 14px;
    color: #666;
    font-weight: normal;
    margin-left: auto;
    background-color: #f0f0f0;
    padding: 2px 8px;
    border-radius: 12px;
  }
  
  :deep(.dark-mode) .char-count {
    background-color: #2d2d3a;
    color: #aaa;
  }
  
  /* 输入区域样式 */
  .original-text-section {
    margin-bottom: 24px;
    flex-grow: 1;
    display: flex;
    flex-direction: column;
  }
  
  .text-input {
    border: 1px solid #e0e0e0;
    border-radius: 10px;
    font-family: inherit;
    font-size: 16px;
    padding: 16px;
    resize: none;
    width: 100%;
    flex-grow: 1;
    min-height: 150px;
    white-space: pre-wrap;
    word-wrap: break-word;
    overflow-wrap: break-word;
    transition: border-color 0.3s, box-shadow 0.3s;
    background-color: #f9f9f9;
  }
  
  .text-input:focus {
    outline: none;
    border-color: #2ecc71;
    box-shadow: 0 0 0 3px rgba(46, 204, 113, 0.2);
    background-color: white;
  }
  
  :deep(.dark-mode) .text-input {
    background-color: #2d2d3a;
    border-color: #3d3d4a;
    color: #f0f0f0;
  }
  
  :deep(.dark-mode) .text-input:focus {
    border-color: #2ecc71;
    background-color: #252533;
  }
  
  /* 按钮样式 */
  .rewrite-button {
    background: linear-gradient(135deg, #2ecc71, #27ae60);
    border: none;
    border-radius: 10px;
    color: white;
    cursor: pointer;
    font-size: 16px;
    font-weight: 600;
    margin-top: 16px;
    padding: 16px;
    transition: all 0.3s ease;
    width: 100%;
    position: relative;
    overflow: hidden;
    box-shadow: 0 4px 12px rgba(46, 204, 113, 0.3);
  }
  
  .rewrite-button:hover:not(:disabled) {
    transform: translateY(-2px);
    box-shadow: 0 6px 16px rgba(46, 204, 113, 0.4);
  }
  
  .rewrite-button:active:not(:disabled) {
    transform: translateY(1px);
    box-shadow: 0 2px 8px rgba(46, 204, 113, 0.3);
  }
  
  .rewrite-button:disabled {
    opacity: 0.7;
    cursor: not-allowed;
  }
  
  /* 加载动画 */
  .loading-spinner {
    display: inline-block;
    width: 20px;
    height: 20px;
    border: 3px solid rgba(255, 255, 255, 0.3);
    border-radius: 50%;
    border-top-color: white;
    animation: spin 1s ease-in-out infinite;
  }
  
  @keyframes spin {
    to { transform: rotate(360deg); }
  }
  
  @media (max-width: 1200px) {
    .input-section {
      flex: none;
      width: 100%;
      max-width: 100%;
    }
  }
  
  @media (max-width: 768px) {
    .input-section {
      padding: 20px;
      border-radius: 12px;
    }
    
    .header-section {
      flex-direction: column;
      text-align: center;
    }
    
    .settings-button {
      position: absolute;
      top: 0;
      right: 0;
    }
  }
  
  @media (max-width: 480px) {
    .input-section {
      padding: 16px;
    }
  }
  </style>