// Typed endpoint wrappers for the M5b browse experience.
//
// Mirrors the FastAPI routes in yunke-server/app/api/routers/. Each wrapper
// drops `undefined`/empty params so the query string only carries set filters
// (the backend treats missing as "no filter").
import { getJson } from './client'
import type {
  Account,
  CallChannel,
  Channel,
  Customer,
  Department,
  Group,
  GroupMember,
  Message,
  Page,
  PhoneCall,
  Sms,
  Staff,
  StaffChatStats,
  SyncRun,
  SyncState,
  SyncStatus,
} from './types'

/** Drop entries whose value is `undefined`, `null`, or `''`. */
function clean(params: Record<string, unknown>): Record<string, unknown> {
  const out: Record<string, unknown> = {}
  for (const [k, v] of Object.entries(params)) {
    if (v === undefined || v === null || v === '') continue
    out[k] = v
  }
  return out
}

export interface CustomerQuery {
  channel?: Channel | 'all'
  page?: number
  page_size?: number
  owner_account_id?: string
  user_id?: string
  department_id?: string
  add_time_since?: number
  last_chat_since?: number
}

export function getCustomers(query: CustomerQuery = {}): Promise<Page<Customer>> {
  return getJson<Page<Customer>>(
    '/customers',
    clean({
      page: query.page ?? 1,
      page_size: query.page_size ?? 20,
      channel: query.channel === 'all' ? undefined : query.channel,
      owner_account_id: query.owner_account_id,
      user_id: query.user_id,
      department_id: query.department_id,
      add_time_since: query.add_time_since,
      last_chat_since: query.last_chat_since,
    }),
  )
}

export interface MessageQuery {
  channel?: Channel
  owner_account_id: string
  talker_id?: string
  room_id?: string
  start?: number
  end?: number
  page?: number
  page_size?: number
}

export function getMessages(query: MessageQuery): Promise<Page<Message>> {
  return getJson<Page<Message>>(
    '/messages',
    clean({
      channel: query.channel,
      owner_account_id: query.owner_account_id,
      talker_id: query.talker_id,
      room_id: query.room_id,
      start: query.start,
      end: query.end,
      page: query.page ?? 1,
      page_size: query.page_size ?? 50,
    }),
  )
}

export function getDepartments(): Promise<Department[]> {
  return getJson<Department[]>('/departments')
}

export interface StaffQuery {
  department_id?: string
  is_on_job?: boolean
  page?: number
  page_size?: number
}

export function getStaff(query: StaffQuery = {}): Promise<Page<Staff>> {
  return getJson<Page<Staff>>(
    '/staff',
    clean({
      department_id: query.department_id,
      is_on_job: query.is_on_job,
      page: query.page ?? 1,
      page_size: query.page_size ?? 20,
    }),
  )
}

export interface AccountQuery {
  /** channel filter; `'all'` (default) drops the param so both channels union. */
  channel?: Channel | 'all'
  page?: number
  page_size?: number
}

export function getAccounts(query: AccountQuery = {}): Promise<Page<Account>> {
  return getJson<Page<Account>>(
    '/accounts',
    clean({
      channel: query.channel === 'all' ? undefined : query.channel,
      page: query.page ?? 1,
      page_size: query.page_size ?? 20,
    }),
  )
}

// ---------------------------------------------------------------------------
// Chat groups
// ---------------------------------------------------------------------------

export interface GroupQuery {
  channel?: Channel | 'all'
  owner_account_id?: string
  user_id?: string
  page?: number
  page_size?: number
}

export function getGroups(query: GroupQuery = {}): Promise<Page<Group>> {
  return getJson<Page<Group>>(
    '/groups',
    clean({
      channel: query.channel === 'all' ? undefined : query.channel,
      owner_account_id: query.owner_account_id,
      user_id: query.user_id,
      page: query.page ?? 1,
      page_size: query.page_size ?? 20,
    }),
  )
}

export function getGroupMembers(roomId: string): Promise<GroupMember[]> {
  // room_id can contain '@' — axios encodes params, but path segments need
  // explicit encoding so the FastAPI `{room_id}` path param matches.
  return getJson<GroupMember[]>(
    `/groups/${encodeURIComponent(roomId)}/members`,
  )
}

// ---------------------------------------------------------------------------
// Phone / voice calls
// ---------------------------------------------------------------------------

export interface CallQuery {
  /** call-type filter; `'all'` (default) drops the param. */
  channel?: CallChannel | 'all'
  user_id?: string
  /** ms-epoch inclusive window compared against start_call_time. */
  start?: number
  end?: number
  page?: number
  page_size?: number
}

export function getCalls(query: CallQuery = {}): Promise<Page<PhoneCall>> {
  return getJson<Page<PhoneCall>>(
    '/calls',
    clean({
      channel: query.channel === 'all' ? undefined : query.channel,
      user_id: query.user_id,
      start: query.start,
      end: query.end,
      page: query.page ?? 1,
      page_size: query.page_size ?? 20,
    }),
  )
}

// ---------------------------------------------------------------------------
// SMS
// ---------------------------------------------------------------------------

export interface SmsQuery {
  user_id?: string
  /** ms-epoch inclusive window compared against create_time. */
  start?: number
  end?: number
  page?: number
  page_size?: number
}

export function getSms(query: SmsQuery = {}): Promise<Page<Sms>> {
  return getJson<Page<Sms>>(
    '/sms',
    clean({
      user_id: query.user_id,
      start: query.start,
      end: query.end,
      page: query.page ?? 1,
      page_size: query.page_size ?? 20,
    }),
  )
}

// ---------------------------------------------------------------------------
// Staff chat stats (微信员工 5 数字 + 客户明细，全本地 message 聚合)
// ---------------------------------------------------------------------------

export interface StaffChatStatsQuery {
  owner_account_id: string
  /** ms-epoch inclusive 窗口（默认近 3 天，由后端兜底）。 */
  start?: number
  end?: number
}

export function getStaffChatStats(query: StaffChatStatsQuery): Promise<StaffChatStats> {
  return getJson<StaffChatStats>(
    '/staff-chat-stats',
    clean({
      owner_account_id: query.owner_account_id,
      start: query.start,
      end: query.end,
    }),
  )
}

// ---------------------------------------------------------------------------
// Sync monitor
// ---------------------------------------------------------------------------

export function getSyncStatus(): Promise<SyncStatus> {
  return getJson<SyncStatus>('/sync/status')
}

// ---------------------------------------------------------------------------
// Full-text search (messages + customers)
// ---------------------------------------------------------------------------

export type SearchType = 'messages' | 'customers' | 'all'

export interface SearchQuery {
  q: string
  /** which section(s) to query; defaults to `all`. */
  type?: SearchType
  channel?: Channel | 'all'
  /** ms-epoch inclusive window compared against message.timestamp. */
  start?: number
  end?: number
  page?: number
  page_size?: number
}

/**
 * Combined search payload returned by `/api/search`. Each requested section is
 * present; unrequested sections are omitted entirely by the backend (so the
 * caller can branch on `section in payload`).
 */
export interface SearchPayload {
  messages?: Page<Message>
  customers?: Page<Customer>
}

export function search(query: SearchQuery): Promise<SearchPayload> {
  return getJson<SearchPayload>(
    '/search',
    clean({
      q: query.q,
      type: query.type ?? 'all',
      channel: query.channel === 'all' ? undefined : query.channel,
      start: query.start,
      end: query.end,
      page: query.page ?? 1,
      page_size: query.page_size ?? 20,
    }),
  )
}

export type {
  Account,
  CallChannel,
  Channel,
  Customer,
  Department,
  Group,
  GroupMember,
  Message,
  Page,
  PhoneCall,
  Sms,
  Staff,
  StaffChatStats,
  SyncRun,
  SyncState,
  SyncStatus,
}