<template>
  <BasicLayout
    title="配音管理"
    :show-back="false"
  >
    <!-- 搜索栏 -->
    <div class="search-bar">
      <a-space>
        <a-button type="primary" @click="handleCreate">
          <PlusOutlined />
          新建配音
        </a-button>
        <a-input
          v-model:value="searchParams.name"
          placeholder="搜索配音名称"
          style="width: 250px"
          @press-enter="handleSearch"
        >
          <SearchOutlined />
        </a-input>
        <a-button @click="handleSearch">查询</a-button>
        <a-button @click="handleReset">重置</a-button>
      </a-space>
    </div>

    <!-- 列表表格 -->
    <div class="table-container">
      <a-table
        :columns="columns"
        :data-source="voiceList"
        :loading="loading"
        :pagination="pagination"
        row-key="id"
        @change="handleTableChange"
      >
        <template #bodyCell="{ column, record }">
          <div v-if="column.key === 'name'" class="voice-name">
            {{ record.name || '未命名' }}
          </div>
          <span v-else-if="column.key === 'createTime'">
            {{ formatDateTime(record.createTime) }}
          </span>
          <a-button v-else-if="column.key === 'fileUrl'" type="link" size="small" @click="handlePlayAudio(record)">
            <PlayCircleOutlined />
            播放
          </a-button>
          <a-space v-else-if="column.key === 'actions'">
            <a-button type="link" size="small" @click="handleEdit(record)">编辑</a-button>
            <a-button type="link" size="small" danger @click="handleDelete(record)">删除</a-button>
          </a-space>
        </template>
      </a-table>
    </div>

    <!-- 表单 Modal -->
    <a-modal
      v-model:open="modalVisible"
      :title="isCreateMode ? '新建配音' : '编辑配音'"
      :width="600"
      :confirm-loading="submitting"
      @ok="handleSubmit"
      @cancel="handleCancel"
    >
      <a-form ref="formRef" :model="formData" :rules="formRules" layout="vertical">
        <a-form-item label="配音名称" name="name">
          <a-input v-model:value="formData.name" placeholder="请输入配音名称" />
        </a-form-item>

        <a-form-item
          v-if="isCreateMode"
          label="音频文件"
          name="fileId"
          :rules="[{ required: true, message: '请上传音频文件' }]"
        >
          <a-upload
            v-model:file-list="fileList"
            :custom-request="handleCustomUpload"
            :before-upload="handleBeforeUpload"
            :max-count="1"
            accept="audio/*,.mp3,.wav,.aac,.m4a,.flac,.ogg"
            @remove="handleRemoveFile"
            @change="handleFileListChange"
          >
            <a-button type="primary" :loading="uploadState.uploading">
              <UploadOutlined v-if="!uploadState.uploading" />
              {{ uploadState.uploading ? '上传中...' : (fileList.length > 0 ? '重新上传' : '上传音频文件') }}
            </a-button>
          </a-upload>
          <div class="upload-hint">
            支持格式：MP3、WAV、AAC、M4A、FLAC、OGG，单个文件不超过 50MB<br>
            <span class="hint-text">🎤 配音建议：使用 30 秒 - 2 分钟的短配音效果更佳</span>
          </div>
        </a-form-item>

        <a-form-item label="备注" name="note">
          <a-textarea v-model="formData.note" :rows="3" placeholder="请输入备注信息" />
        </a-form-item>
      </a-form>
    </a-modal>

    <audio ref="audioPlayer" style="display: none" />
  </BasicLayout>
</template>

<script setup>
import { ref, reactive, computed, onMounted, nextTick } from 'vue'
import { message, Modal } from 'ant-design-vue'
import { PlusOutlined, SearchOutlined, UploadOutlined, PlayCircleOutlined } from '@ant-design/icons-vue'
import { VoiceService } from '@/api/voice'
import { MaterialService } from '@/api/material'
import { useUpload } from '@/composables/useUpload'
import dayjs from 'dayjs'
import BasicLayout from '@/layouts/components/BasicLayout.vue'

// ========== 常量 ==========
const DEFAULT_FORM_DATA = {
  id: null,
  name: '',
  fileId: null,
  autoTranscribe: true,
  language: 'zh-CN',
  gender: 'female',
  note: ''
}

// ========== 响应式数据 ==========
const loading = ref(false)
const submitting = ref(false)
const voiceList = ref([])
const modalVisible = ref(false)
const formMode = ref('create')
const formRef = ref(null)
const audioPlayer = ref(null)
const fileList = ref([])

const searchParams = reactive({
  name: '',
  pageNo: 1,
  pageSize: 10
})

const pagination = reactive({
  current: 1,
  pageSize: 10,
  total: 0,
  showSizeChanger: true,
  showTotal: (total) => `共 ${total} 条`
})

const formData = reactive({ ...DEFAULT_FORM_DATA })

// ========== Upload Hook ==========
const { state: uploadState, upload } = useUpload()

// ========== 计算属性 ==========
const isCreateMode = computed(() => formMode.value === 'create')

// ========== 表格配置 ==========
const columns = [
  { title: '配音名称', key: 'name', dataIndex: 'name', width: 200 },
  { title: '创建时间', key: 'createTime', dataIndex: 'createTime', width: 180 },
  { title: '操作', key: 'actions', width: 200, fixed: 'right' }
]

// ========== 表单验证规则 ==========
const formRules = {
  name: [{ required: true, message: '请输入配音名称' }],
  fileId: [{ required: true, message: '请上传音频文件' }]
}

// ========== 工具函数 ==========
const formatDateTime = (value) => {
  if (!value) return '-'
  return dayjs(value).format('YYYY-MM-DD HH:mm:ss')
}

const fillFormData = (data) => {
  Object.assign(formData, {
    id: data.id || null,
    name: data.name || '',
    fileId: data.fileId || null,
    language: data.language || 'zh-CN',
    gender: data.gender || 'female',
    note: data.note || ''
  })
}

// ========== 数据加载 ==========
const loadVoiceList = async () => {
  loading.value = true
  try {
    const res = await VoiceService.getPage({
      pageNo: pagination.current,
      pageSize: pagination.pageSize,
      name: searchParams.name || undefined
    })
    if (res.code !== 0) return message.error(res.msg || '加载失败')

    voiceList.value = res.data.list || []
    pagination.total = res.data.total || 0
  } catch (error) {
    console.error('加载配音列表失败:', error)
    message.error('加载失败，请稍后重试')
  } finally {
    loading.value = false
  }
}

// ========== 搜索和分页 ==========
const handleSearch = () => {
  pagination.current = 1
  loadVoiceList()
}

const handleReset = () => {
  searchParams.name = ''
  pagination.current = 1
  loadVoiceList()
}

const handleTableChange = (pag) => {
  pagination.current = pag.current
  pagination.pageSize = pag.pageSize
  loadVoiceList()
}

// ========== CRUD 操作 ==========
const handleCreate = () => {
  formMode.value = 'create'
  resetForm()
  modalVisible.value = true
}

const handleEdit = async (record) => {
  formMode.value = 'edit'
  try {
    const res = await VoiceService.get(record.id)
    fillFormData(res.code === 0 && res.data ? res.data : record)
  } catch (error) {
    console.error('获取配音详情失败:', error)
    fillFormData(record)
  }
  modalVisible.value = true
}

const handleDelete = (record) => {
  Modal.confirm({
    title: '确认删除',
    content: `确定要删除配音「${record.name}」吗？此操作不可恢复。`,
    okText: '删除',
    okButtonProps: { danger: true },
    cancelText: '取消',
    onOk: async () => {
      try {
        const res = await VoiceService.delete(record.id)
        if (res.code !== 0) return message.error(res.msg || '删除失败')

        message.success('删除成功')
        loadVoiceList()
      } catch (error) {
        console.error('删除失败:', error)
        message.error('删除失败，请稍后重试')
      }
    }
  })
}

// ========== 音频播放 ==========
const handlePlayAudio = (record) => {
  if (record.fileUrl && audioPlayer.value) {
    audioPlayer.value.src = record.fileUrl
    audioPlayer.value.play()
  } else {
    message.warning('音频文件不存在')
  }
}

// ========== 文件上传 ==========
const handleBeforeUpload = (file) => {
  const MAX_FILE_SIZE = 50 * 1024 * 1024
  if (file.size > MAX_FILE_SIZE) {
    message.error('文件大小不能超过 50MB')
    return false
  }

  const validTypes = ['audio/mpeg', 'audio/wav', 'audio/wave', 'audio/x-wav', 'audio/aac', 'audio/mp4', 'audio/flac', 'audio/ogg']
  const validExtensions = ['.mp3', '.wav', '.aac', '.m4a', '.flac', '.ogg']
  const fileName = file.name.toLowerCase()
  const fileType = file.type.toLowerCase()

  const isValidType = validTypes.some(type => fileType.includes(type)) ||
                      validExtensions.some(ext => fileName.endsWith(ext))

  if (!isValidType) {
    message.error('请上传音频文件（MP3、WAV、AAC、M4A、FLAC、OGG）')
    return false
  }

  return true
}

const handleCustomUpload = async (options) => {
  const { file, onSuccess, onError } = options

  try {
    const fileId = await upload(file, {
      fileCategory: 'voice',
      groupId: null, // 配音模块不使用groupId
      coverBase64: null,
      onStart: () => {},
      onProgress: () => {},
      onSuccess: (id) => {
        formData.fileId = id
        message.success('文件上传成功')
        onSuccess?.({ code: 0, data: id }, file)
      },
      onError: (error) => {
        const errorMsg = error.message || '上传失败，请稍后重试'
        message.error(errorMsg)
        onError?.(error)
      }
    })

    return fileId
  } catch (error) {
    console.error('上传失败:', error)
    onError?.(error)
  }
}

const handleFileListChange = (info) => {
  // 处理文件列表变化，避免直接修改导致 DOM 错误
  const { fileList: newFileList } = info
  
  // 只更新文件列表，不直接修改文件项的状态
  // 让组件自己管理状态
  if (newFileList) {
    fileList.value = newFileList.filter(item => item.status !== 'removed')
  }
}

const handleRemoveFile = () => {
  formData.fileId = null
  fileList.value = []
}

// ========== 表单操作 ==========
const handleSubmit = async () => {
  try {
    await formRef.value.validate()
  } catch {
    return
  }

  submitting.value = true

  const params = isCreateMode.value
    ? {
        name: formData.name,
        fileId: formData.fileId,
        autoTranscribe: formData.autoTranscribe,
        language: formData.language,
        gender: formData.gender,
        note: formData.note
      }
    : {
        id: formData.id,
        name: formData.name,
        language: formData.language,
        gender: formData.gender,
        note: formData.note
      }

  try {
    const res = isCreateMode.value
      ? await VoiceService.create(params)
      : await VoiceService.update(params)

    if (res.code !== 0) {
      message.error(res.msg || '操作失败')
      return
    }

    message.success(isCreateMode.value ? '创建成功' : '更新成功')
    modalVisible.value = false
    loadVoiceList()
  } catch (error) {
    console.error('提交失败:', error)
    message.error('操作失败，请稍后重试')
  } finally {
    submitting.value = false
  }
}

const handleCancel = () => {
  modalVisible.value = false
  resetForm()
}

const resetForm = () => {
  Object.assign(formData, { ...DEFAULT_FORM_DATA })
  fileList.value = []
  formRef.value?.resetFields()
}

// ========== 生命周期 ==========
onMounted(() => {
  loadVoiceList()
})
</script>

<style scoped>
.search-bar {
  background: var(--color-surface);
  border-radius: var(--radius-card);
  margin-bottom: 16px;
}

.table-container {
  background: var(--color-surface);
  border-radius: var(--radius-card);
}

.voice-name {
  font-weight: 500;
  color: var(--color-text);
}

.upload-hint {
  font-size: 12px;
  color: var(--color-text-secondary);
  margin-top: 8px;
  line-height: 1.5;
}
</style>
