import axios from 'axios'
import axiosRetry from 'axios-retry'
import router from '@/router'

/** 标记是否正在处理 401，防多个并发 */
let isHandlingUnauthorized = false

/** 统一的 401 处理：清登录态 + 提示 + 跳转 /login */
async function handleUnauthorized() {
  if (isHandlingUnauthorized) return
  isHandlingUnauthorized = true
  try {
    const { useAuthStore } = await import('@/stores/auth')
    useAuthStore().clear()

    const { ElMessage } = await import('element-plus')
    ElMessage.warning('登录已过期，请重新登录')

    if (router.currentRoute.value.path !== '/login') {
      await router.replace('/login')
    }
  } finally {
    isHandlingUnauthorized = false
  }
}

export const api = axios.create({
  baseURL: '/',
  timeout: 30000,
})

axiosRetry(api, {
  retries: 3,
  retryDelay: axiosRetry.exponentialDelay,
  onRetry: (_retryCount, _err, _requestConfig) => {
    // no-op — could log in dev
  },
  // Only retry idempotent methods — never retry POST/PUT/PATCH/DELETE
  retryCondition: (err) => {
    const method = (err.config?.method ?? '').toUpperCase()
    if (!['GET', 'HEAD', 'OPTIONS'].includes(method)) return false
    // Retry on network errors or 5xx, but never on 401/403/404/4xx
    if (!err.response) return true
    return err.response.status >= 500 && err.response.status < 600
  },
})

api.interceptors.response.use(
  (r) => r,
  (err) => {
    // 跳过登录接口的 401（密码错误等正常登录失败场景）
    const requestPath = new URL(err.config?.url || '', window.location.origin).pathname
    if (err.response?.status === 401 && requestPath === '/api/auth/login') {
      return Promise.reject(err)
    }
    if (err.response?.status === 401) {
      void handleUnauthorized()
    }
    return Promise.reject(err)
  }
)

// ——— Auth ———
export const authApi = {
  login: (email: string, password: string) =>
    api.post<{ access_token: string }>('/api/auth/login', { email, password }),
  me: () => api.get<{ email: string }>('/api/auth/me'),
}

// ——— Upstreams ———
export interface UpstreamData {
  id: number
  name: string
  base_url: string
  api_prefix: string
  auth_type: string
  auth_config_masked: Record<string, any>
  rate_endpoint: string
  groups_endpoint: string
  enabled: boolean
  check_interval_seconds: number
  timeout_seconds: number
  last_status: string
  last_checked_at: string | null
  last_error: string | null
  balance: number | null
  balance_updated_at: string | null
  balance_endpoint: string
  balance_response_path: string
  balance_divisor: number
  balance_alert_threshold: number | null
  created_at: string
  updated_at: string
}

export interface UpstreamForm {
  name: string
  base_url: string
  api_prefix: string
  auth_type: string
  auth_config: Record<string, any>
  rate_endpoint: string
  groups_endpoint: string
  enabled: boolean
  check_interval_seconds: number
  timeout_seconds: number
  balance_endpoint: string
  balance_response_path: string
  balance_divisor: number
  balance_alert_threshold: number | null
}

export interface GeneratedUpstreamKey {
  id: number | null
  upstream_id: number
  group_id: string
  group_name: string
  key_id: string | null
  key_name: string
  key_value: string | null
  masked_key: string
  status: string
  error: string | null
  imported_website_id: number | null
  imported_account_id: string | null
  imported_at: string | null
  created_at: string | null
  has_key_value: boolean
}

export interface GenerateKeysByGroupsForm {
  group_ids: string[]
  name_prefix: string
  quota: number
  expires_in_days?: number | null
  rate_limit_5h: number
  rate_limit_1d: number
  rate_limit_7d: number
  endpoint: string
}

export interface UpstreamBatchActionItem {
  upstream_id: number
  upstream_name: string
  status: 'success' | 'failed' | 'skipped'
  message: string
  detail?: string | null
}

export interface UpstreamBatchActionSummary {
  total: number
  success: number
  failed: number
  skipped: number
}

export interface UpstreamBatchActionResponse {
  success: boolean
  message: string
  summary: UpstreamBatchActionSummary
  items: UpstreamBatchActionItem[]
}

export const upstreamsApi = {
  list: () => api.get<UpstreamData[]>('/api/upstreams'),
  create: (data: UpstreamForm) => api.post<UpstreamData>('/api/upstreams', data),
  update: (id: number, data: Partial<UpstreamForm>) => api.put<UpstreamData>(`/api/upstreams/${id}`, data),
  delete: (id: number) => api.delete(`/api/upstreams/${id}`),
  test: (id: number) => api.post<{ success: boolean; message: string; detail?: string }>(`/api/upstreams/${id}/test`),
  checkNow: (id: number) => api.post<{ success: boolean; message: string }>(`/api/upstreams/${id}/check-now`),
  generatedKeys: (id: number) => api.get<GeneratedUpstreamKey[]>(`/api/upstreams/${id}/generated-keys`),
  generateKeysByGroups: (id: number, data: GenerateKeysByGroupsForm) =>
    api.post<{ success: boolean; message: string; items: GeneratedUpstreamKey[] }>(`/api/upstreams/${id}/keys/generate-by-groups`, data),
  latestSnapshot: (id: number) => api.get(`/api/upstreams/${id}/snapshots/latest`),
  listSnapshots: (id: number, limit = 20, offset = 0) =>
    api.get<any[]>(`/api/upstreams/${id}/snapshots`, { params: { limit, offset } }),
  testAll: () => api.post<UpstreamBatchActionResponse>('/api/upstreams/test-all'),
  checkNowAll: () => api.post<UpstreamBatchActionResponse>('/api/upstreams/check-now-all'),
}

// ——— Websites ———
export interface WebsiteData {
  id: number
  name: string
  site_type: string
  base_url: string
  api_prefix: string
  auth_type: string
  auth_config_masked: Record<string, any>
  groups_endpoint: string
  group_update_endpoint: string
  enabled: boolean
  auto_sync_enabled: boolean
  timeout_seconds: number
  last_status: string
  last_checked_at: string | null
  last_error: string | null
  created_at: string
  updated_at: string
}

export interface WebsiteForm {
  name: string
  site_type: string
  base_url: string
  api_prefix: string
  auth_type: string
  auth_config: Record<string, any>
  groups_endpoint: string
  group_update_endpoint: string
  enabled: boolean
  auto_sync_enabled: boolean
  timeout_seconds: number
}

export interface WebsiteGroup {
  id: string
  name: string
  rate_multiplier: string | null
  raw: Record<string, any>
}

export interface BindingSourceGroup {
  upstream_id: number
  group_id: string
  upstream_name: string
  group_name: string
}

export interface GroupBindingData {
  id: number
  website_id: number
  website_name: string
  target_group_id: string
  target_group_name: string
  source_groups: BindingSourceGroup[]
  percent: number
  algorithm: string
  enabled: boolean
  created_at: string
  updated_at: string
}

export interface GroupBindingForm {
  website_id: number
  target_group_id: string
  target_group_name: string
  source_groups: BindingSourceGroup[]
  percent: number
  algorithm: string
  enabled: boolean
}

export interface WebsiteSyncLog {
  id: number
  website_id: number
  binding_id: number | null
  target_group_id: string
  target_group_name: string
  algorithm: string
  percent: number
  source_rates: Array<Record<string, any>>
  old_rate: string | null
  new_rate: string | null
  status: string
  message: string
  created_at: string
}

export interface ImportGroupItem {
  source_group_id: string
  source_group_name: string
  target_group_id: string | null
  target_group_name: string
  status: string
  message: string
  raw: Record<string, any>
}

export interface ImportAccountItem {
  upstream_key_id: number
  source_group_id: string
  source_group_name: string
  target_group_id: string | null
  account_id: string | null
  account_name: string
  platform: string
  upstream_base_url: string
  status: string
  message: string
  raw: Record<string, any>
}

export interface WebsiteBatchSyncResponse {
  total: number
  success: number
  failed: number
  skipped: number
  message: string
  logs: WebsiteSyncLog[]
}

export const websitesApi = {
  list: () => api.get<WebsiteData[]>('/api/websites'),
  create: (data: WebsiteForm) => api.post<WebsiteData>('/api/websites', data),
  update: (id: number, data: Partial<WebsiteForm>) => api.put<WebsiteData>(`/api/websites/${id}`, data),
  delete: (id: number) => api.delete(`/api/websites/${id}`),
  test: (id: number) => api.post<{ success: boolean; message: string; detail?: string }>(`/api/websites/${id}/test`),
  groups: (id: number) => api.get<WebsiteGroup[]>(`/api/websites/${id}/groups`),
  importGroupsFromUpstream: (id: number, upstreamId: number, data: { group_ids: string[]; name_prefix: string }) =>
    api.post<{ success: boolean; message: string; items: ImportGroupItem[] }>(`/api/websites/${id}/groups/import-from-upstream/${upstreamId}`, data),
  syncImportedUpstreamKeys: (id: number, data: { upstream_id: number }) =>
    api.post<{ success: boolean; message: string; items: ImportAccountItem[] }>(`/api/websites/${id}/accounts/sync-imported-upstream-keys`, data),
  importAccountsFromUpstreamKeys: (id: number, data: {
    upstream_key_ids: number[]
    target_group_map: Record<string, string>
    account_name_prefix: string
    default_platform: string
    platform_mode?: string
    concurrency?: number
    priority?: number
    auto_priority_by_rate?: boolean
  }) => api.post<{ success: boolean; message: string; items: ImportAccountItem[] }>(`/api/websites/${id}/accounts/import-upstream-keys`, data),
  listBindings: () => api.get<GroupBindingData[]>('/api/group-bindings'),
  createBinding: (data: GroupBindingForm) => api.post<GroupBindingData>('/api/group-bindings', data),
  updateBinding: (id: number, data: Partial<GroupBindingForm>) => api.put<GroupBindingData>(`/api/group-bindings/${id}`, data),
  deleteBinding: (id: number) => api.delete(`/api/group-bindings/${id}`),
  syncNow: (id: number) => api.post<WebsiteSyncLog>(`/api/group-bindings/${id}/sync-now`),
  syncWebsiteBindings: (id: number) => api.post<WebsiteBatchSyncResponse>(`/api/websites/${id}/group-bindings/sync-now`),
  logs: (params?: { website_id?: number; binding_id?: number; limit?: number; offset?: number }) =>
    api.get<WebsiteSyncLog[]>('/api/website-sync-logs', { params }),
}

// ——— Webhooks ———
export interface WebhookData {
  id: number
  name: string
  type: string
  url: string
  secret_masked: string
  enabled: boolean
  events: string[]
  created_at: string
  updated_at: string
}

export interface WebhookForm {
  name: string
  type: string
  url: string
  secret: string
  enabled: boolean
  events: string[]
}

export const webhooksApi = {
  list: () => api.get<WebhookData[]>('/api/webhooks'),
  create: (data: WebhookForm) => api.post<WebhookData>('/api/webhooks', data),
  update: (id: number, data: Partial<WebhookForm>) => api.put<WebhookData>(`/api/webhooks/${id}`, data),
  delete: (id: number) => api.delete(`/api/webhooks/${id}`),
  test: (id: number) => api.post<{ success: boolean; message: string }>(`/api/webhooks/${id}/test`),
}

// ——— Logs ———
export interface LogData {
  id: number
  webhook_config_id: number
  webhook_name: string
  event_type: string
  payload: Record<string, any>
  status: string
  response_text: string | null
  created_at: string
}

export const logsApi = {
  list: (params?: { status?: string; event_type?: string; limit?: number; offset?: number }) =>
    api.get<LogData[]>('/api/notification-logs', { params }),
}

// ——— Custom Pages ———
export type CustomPageAccessMode = 'direct' | 'proxy'

export interface CustomPageData {
  id: number
  name: string
  url: string
  icon: string
  sort_order: number
  enabled: boolean
  use_proxy: boolean
  access_mode: CustomPageAccessMode
  description: string | null
  login_username: string | null
  login_username_selector: string | null
  login_password_selector: string | null
  login_submit_selector: string | null
  login_autofill_enabled: boolean
  login_password_configured: boolean
  linked_upstream_id: number | null
  created_at: string
  updated_at: string
}

export interface CustomPageForm {
  name: string
  url: string
  icon: string
  sort_order: number
  enabled: boolean
  use_proxy?: boolean
  access_mode?: CustomPageAccessMode
  description?: string
  login_username?: string
  login_password?: string
  login_username_selector?: string
  login_password_selector?: string
  login_submit_selector?: string
  login_autofill_enabled?: boolean
  login_password_clear?: boolean
  linked_upstream_id?: number | null
}

export const customPagesApi = {
  list: () => api.get<CustomPageData[]>('/api/custom-pages'),
  listPublic: () => axios.get<CustomPageData[]>('/api/custom-pages/public'),
  create: (data: CustomPageForm) => api.post<CustomPageData>('/api/custom-pages', data),
  update: (id: number, data: Partial<CustomPageForm>) => api.put<CustomPageData>(`/api/custom-pages/${id}`, data),
  delete: (id: number) => api.delete(`/api/custom-pages/${id}`),
}

// ——— Auth Capture ———
export interface BrowserImportSession {
  session_id: string
  secret: string
  expires_in_seconds: number
}

export interface AuthCaptureCandidate {
  type: 'bearer_token' | 'cookie' | 'cookie_bundle' | 'credential' | 'api_key'
  source: string
  preview: string
  label: string
  confidence: number
  value?: string
  cookie_name?: string
  cookie_value?: string
  cookie_count?: number
  cookie_names?: string[]
  new_api_user?: string
}

export interface AuthCaptureResult {
  cookies: Record<string, any>[]
  storage: Record<string, string>
  session_storage: Record<string, string>
  auth_headers: Record<string, string>[]
  candidates: AuthCaptureCandidate[]
}

export interface BrowserImportStatus {
  session_id: string
  ready: boolean
  expires_at: number
  result: AuthCaptureResult | null
}

export const authCaptureApi = {
  createImportSession: (targetUrl: string) =>
    api.post<BrowserImportSession>('/api/auth-capture/import-sessions', { target_url: targetUrl }),
  importSessionStatus: (sessionId: string, options?: { includeRaw?: boolean }) =>
    api.get<BrowserImportStatus>(`/api/auth-capture/import-sessions/${sessionId}`, {
      params: options?.includeRaw ? { include_raw: true } : undefined,
    }),
}