import { request } from '@/utils/request'
import { API_BASE } from '@/config'

/** 通知 */
export interface Notification {
  id: number
  type: 'system' | 'group' | 'personal'
  title: string
  content: string
  is_read: number
  created_at: string
  group_id?: number | null
  is_pinned?: number
  is_urgent?: number
  publish_at?: string | null
  expire_at?: string | null
  image_url?: string
  link_url?: string
}

/** 通知列表响应 */
export interface NotificationList {
  list: Notification[]
  total: number
  page: number
  pageSize: number
}

/** 发布公告参数 */
export interface PublishParams {
  title: string
  content?: string
  type?: 'system' | 'group' | 'personal'
  group_id?: number
  is_pinned?: boolean
  is_urgent?: boolean
  publish_at?: string
  expire_at?: string
  image_url?: string
  link_url?: string
}

/** 获取通知列表 */
export function getNotifications(params?: { type?: string; page?: number; pageSize?: number }) {
  return request<NotificationList>({ url: '/notifications', data: params })
}

/** 获取置顶/强提醒公告 */
export function getPinnedNotifications() {
  return request<Notification[]>({ url: '/notifications/pinned' })
}

/** 获取未读数量 */
export function getUnreadCount() {
  return request<{ count: number }>({ url: '/notifications/unread-count' })
}

/** 标记单条已读 */
export function markRead(id: number) {
  return request({ url: `/notifications/${id}/read`, method: 'PUT' })
}

/** 全部标记已读 */
export function markAllRead() {
  return request({ url: '/notifications/read-all', method: 'PUT' })
}

/** 上传通知图片（返回文件名） */
export function uploadNotificationImage(filePath: string): Promise<{ image_url: string }> {
  return new Promise((resolve, reject) => {
    const token = uni.getStorageSync('xc:token')
    uni.uploadFile({
      url: `${API_BASE}/notifications/upload-image`,
      filePath,
      name: 'file',
      header: {
        ...(token ? { Authorization: `Bearer ${token}` } : {})
      },
      success: (res) => {
        try {
          const data = JSON.parse(res.data)
          if (data.code === 0) {
            resolve(data.data)
          } else {
            reject(data)
          }
        } catch {
          reject({ message: '上传失败' })
        }
      },
      fail: () => reject({ message: '网络错误' })
    })
  })
}

/** 获取通知图片完整 URL */
export function getNotificationImageUrl(filename: string): string {
  if (!filename) return ''
  // 如果已经是完整 URL 或 blob URL，直接返回
  if (filename.startsWith('http') || filename.startsWith('blob:')) return filename
  return `${API_BASE}/notifications/image/${filename}`
}

/** 发布公告 */
export function publishNotification(data: PublishParams) {
  return request<{ id: number }>({ url: '/notifications', method: 'POST', data })
}

/** 编辑公告 */
export function updateNotification(id: number, data: Partial<PublishParams>) {
  return request({ url: `/notifications/${id}`, method: 'PUT', data })
}

/** 删除公告 */
export function deleteNotification(id: number) {
  return request({ url: `/notifications/${id}`, method: 'DELETE' })
}