import { get, post, request } from './request.js'
import { getToken } from './auth.js'

function authHeader() {
  const token = getToken()
  return token ? { Authorization: 'Bearer ' + token } : {}
}

/** 小程序侧无 URLSearchParams 时用手写 query */
function buildQuery(params) {
  const parts = []
  Object.keys(params || {}).forEach((k) => {
    const v = params[k]
    if (v == null || v === '') return
    parts.push(encodeURIComponent(k) + '=' + encodeURIComponent(String(v)))
  })
  return parts.join('&')
}

function withQuery(path, params) {
  const qs = buildQuery(params)
  return qs ? path + '?' + qs : path
}

export function fetchOaGroupList() {
  return get('/web/admin/oa-approval/groups', authHeader())
}

export function fetchOaTemplates() {
  return get('/web/admin/oa-approval/templates', authHeader())
}

export function fetchOaTemplateDetail(appId) {
  return get(
    '/web/admin/oa-approval/templates/' + encodeURIComponent(appId),
    authHeader()
  )
}

// —— drafts ——

export function fetchOaInstanceDraftList(params) {
  const p = params || {}
  return get(
    withQuery('/web/admin/oa-approval/drafts', {
      keyword: p.keyword,
      groupId: p.groupId,
      updateTimeFrom: p.updateTimeFrom,
      updateTimeTo: p.updateTimeTo,
      page: p.page != null ? p.page : 1,
      pageSize: p.pageSize != null ? p.pageSize : 20
    }),
    authHeader()
  )
}

export function fetchOaInstanceDraftCount() {
  return get('/web/admin/oa-approval/drafts/count', authHeader())
}

export function fetchDeleteOaInstanceDraft(id) {
  return request({
    url: '/web/admin/oa-approval/drafts/' + encodeURIComponent(id),
    method: 'DELETE',
    header: authHeader()
  })
}

export function fetchBatchDeleteOaInstanceDrafts(ids) {
  return post(
    '/web/admin/oa-approval/drafts/batch-delete',
    { ids: ids || [] },
    authHeader()
  )
}

export function fetchSubmitOaInstanceDraft(id, data) {
  return post(
    '/web/admin/oa-approval/drafts/' + encodeURIComponent(id) + '/submit',
    data || {},
    authHeader()
  )
}

// —— tasks ——

export function fetchOaTasks(kind, params) {
  const p = params || {}
  const keyword = (p.keyword || '').trim()
  const appName = (p.appName || '').trim()
  const initiatorName = (p.initiatorName || '').trim()
  const query = {
    page: p.page != null ? p.page : 1,
    pageSize: p.pageSize != null ? p.pageSize : 20
  }
  if (kind === 'cc') {
    query.readStatus = p.readStatus != null && p.readStatus !== '' ? p.readStatus : 'unread'
  }
  if (keyword) query.keyword = keyword
  if (appName) query.appName = appName
  if (initiatorName) query.initiatorName = initiatorName
  return get(
    withQuery('/web/admin/oa-approval/tasks/' + encodeURIComponent(kind), query),
    authHeader()
  )
}

export function fetchOaPendingTaskCount() {
  return get('/web/admin/oa-approval/tasks/pending/count', authHeader())
}

export function fetchOaCcUnreadCount() {
  return get('/web/admin/oa-approval/tasks/cc/unread-count', authHeader())
}

export function fetchMarkOaCcTaskRead(taskId) {
  return post(
    '/web/admin/oa-approval/tasks/' + encodeURIComponent(taskId) + '/read',
    {},
    authHeader()
  )
}

export function fetchBatchMarkOaCcTasksRead(ids) {
  return post(
    '/web/admin/oa-approval/tasks/cc/read-batch',
    { ids: ids || [] },
    authHeader()
  )
}

export function fetchApproveOaTask(taskId, comment) {
  return post(
    '/web/admin/oa-approval/tasks/' + encodeURIComponent(taskId) + '/approve',
    { comment: comment || undefined },
    authHeader()
  )
}

export function fetchReturnOaTask(taskId, comment) {
  return post(
    '/web/admin/oa-approval/tasks/' + encodeURIComponent(taskId) + '/return',
    { comment: comment || undefined },
    authHeader()
  )
}