import { currentUser as mockCurrentUser } from '@/data/mock'

const APPLY_KEY = 'aimill_hr_applications'
const DRAFT_KEY = 'aimill_hr_application_drafts'
const APPROVAL_KEY = 'aimill_hr_approval_results'
const TRAINING_KEY = 'aimill_hr_training_progress'
const PROFILE_KEY = 'aimill_hr_profile_changes'
const ONBOARD_MATERIALS_KEY = 'aimill_hr_onboard_materials'
const ONBOARD_LIST_KEY = 'aimill_hr_onboardings'
const ONBOARD_INVITATION_KEY = 'aimill_hr_onboarding_invitations'
const ONBOARD_DRAFT_KEY = 'aimill_hr_onboarding_drafts'
const RESIGN_KEY = 'aimill_hr_resignations'
const AUTH_KEY = 'aimill_hr_auth'
const REMEMBER_KEY = 'aimill_hr_remembered_account'
const PASSWORD_MEMO_KEY = 'passwordMemo'
const PASSWORD_INFO_KEY = 'passInfo'
const TOKEN_KEY = 'token'
const USER_INFO_KEY = 'userInfo'
const TREE_KEY = 'treeList'
const AUTHORITIES_KEY = 'authorities'
const CURRENT_USER_KEY = 'currentUser'
const API_INFO_KEY = 'apiInfo'

export const DEMO_ACCOUNT = 'ZY20230128'
export const DEMO_PASSWORD = '123456'

export function saveLoginSession(data, account) {
  const userInfo = data && typeof data === 'object' ? data : {}
  const token = userInfo.token || `demo-token-${Date.now()}`
  const normalizedAccount = String(account || userInfo.loginName || '').trim().toUpperCase()

  uni.setStorageSync(TOKEN_KEY, token)
  uni.setStorageSync(USER_INFO_KEY, { ...userInfo, token, loginName: normalizedAccount })
  uni.setStorageSync(AUTH_KEY, { account: normalizedAccount, loggedInAt: Date.now() })
}

export function login(account, password, remember = true) {
  const normalizedAccount = String(account || '').trim().toUpperCase()
  if (normalizedAccount !== DEMO_ACCOUNT || String(password) !== DEMO_PASSWORD) {
    return false
  }

  saveLoginSession({
    token: `demo-token-${Date.now()}`,
    sessionId: 'demo-session',
    userId: normalizedAccount,
    userName: '陈晓雨',
    loginName: normalizedAccount,
  }, normalizedAccount)
  saveRememberedCredentials({
    account: normalizedAccount,
    password,
    rememberPassword: remember,
  })
  savePermissionData([], [])
  return true
}

export function logout() {
  [AUTH_KEY, TOKEN_KEY, USER_INFO_KEY, TREE_KEY, AUTHORITIES_KEY, CURRENT_USER_KEY].forEach((key) =>
    uni.removeStorageSync(key),
  )
}

export function isLoggedIn() {
  return Boolean(uni.getStorageSync(TOKEN_KEY) && uni.getStorageSync(USER_INFO_KEY))
}

// 服务器模式下需要的是真实 token（demo 登录的是 demo-token- 开头，残留时视为无效）
export function hasServerAuth() {
  const token = uni.getStorageSync(TOKEN_KEY)
  const userInfo = uni.getStorageSync(USER_INFO_KEY)
  return Boolean(token && userInfo && !String(token).startsWith('demo-token-'))
}

export function getRememberedAccount() {
  return getRememberedCredentials().account
}

export function saveRememberedCredentials({ account, password, rememberPassword }) {
  const normalizedAccount = String(account || '').trim()
  if (!rememberPassword) {
    uni.removeStorageSync(PASSWORD_MEMO_KEY)
    uni.removeStorageSync(PASSWORD_INFO_KEY)
    uni.removeStorageSync(REMEMBER_KEY)
    return
  }
  uni.setStorageSync(PASSWORD_MEMO_KEY, '1')
  uni.setStorageSync(PASSWORD_INFO_KEY, { username: normalizedAccount, passwd: String(password || '') })
  uni.setStorageSync(REMEMBER_KEY, normalizedAccount)
}

export function getRememberedCredentials() {
  const remembered = uni.getStorageSync(PASSWORD_INFO_KEY) || {}
  const rememberPassword = uni.getStorageSync(PASSWORD_MEMO_KEY) === '1'
  return {
    account: remembered.username || uni.getStorageSync(REMEMBER_KEY) || '',
    password: rememberPassword ? remembered.passwd || '' : '',
    rememberPassword,
  }
}

export function savePermissionData(tree, authorities) {
  uni.setStorageSync(TREE_KEY, JSON.stringify(Array.isArray(tree) ? tree : []))
  uni.setStorageSync(AUTHORITIES_KEY, JSON.stringify(Array.isArray(authorities) ? authorities : []))
}

export function getLoginUser() {
  return uni.getStorageSync(USER_INFO_KEY) || null
}

export function saveCurrentUser(data) {
  if (!data) return
  uni.setStorageSync(CURRENT_USER_KEY, data)
}

// 把 /system/account/getLoginUser 与 /main/users/{userId}/profile 合并后的 VO 映射成页面字段
// - 部门：vo.deptName
// - 岗位：fetchUserDetail 已用 vo.postId 解析并写入 vo.position；这里兜底再读 postName / positionList
// - 入职时间：profile 用的是 joinDate，getLoginUser 用 entryDate，两边都兼容
// - 紧急联系人：secondLinkName + secondLinkPhone（关系 secondLinkRelation 可选带入）
function mapCurrentUser(vo) {
  if (!vo || typeof vo !== 'object') return null
  const name = String(vo.name || '')
  let position = vo.position || ''
  if (!position) position = vo.postName || ''
  if (!position && Array.isArray(vo.positionList)) {
    const primary = vo.positionList.find((p) => p && p.primaryFlag === 1)
    position = primary ? String(primary.positionName || '') : ''
  }
  const emergencyName = vo.secondLinkName || ''
  const emergencyPhone = vo.secondLinkPhone || ''
  const emergencyRelation = vo.secondLinkRelation || ''
  // 拼成 "姓名（关系）· 电话" 或 "姓名 · 电话"
  const emergencyParts = []
  if (emergencyName && emergencyRelation) emergencyParts.push(`${emergencyName}（${emergencyRelation}）`)
  else if (emergencyName) emergencyParts.push(emergencyName)
  if (emergencyPhone) emergencyParts.push(emergencyPhone)
  const emergencyContact = emergencyParts.join(' · ')
  const rawBankCards = Array.isArray(vo.bankCardList) ? vo.bankCardList : []
  const bankCardList = rawBankCards.map((c) => ({
    id: String(c.id ?? c.cardId ?? c.cardNumber ?? ''),
    cardNumber: String(c.cardNumber ?? c.cardNo ?? ''),
    openingBank: String(c.openingBank ?? c.bankName ?? ''),
    branch: String(c.branch ?? c.subBranch ?? ''),
  }))
  return {
    id: vo.jobNumber || vo.loginName || '',
    name,
    initials: name ? name.charAt(0) : '',
    department: vo.deptName || '',
    position,
    company: vo.groupName || '',
    phone: vo.phone || '',
    entryDate: vo.joinDate || vo.entryDate || '',
    workAge: vo.workAge || '',
    emergencyContact,
    maritalStatus: vo.maritalStatus || vo.marital || '',
    emergencyName: emergencyName,
    emergencyPhone: emergencyPhone,
    emergencyRelation: emergencyRelation,
    bankCardList,
    raw: vo,
  }
}

function isServerMode() {
  const info = uni.getStorageSync(API_INFO_KEY)
  return Boolean(info && info.mode === 'server')
}

// 演示模式 → mock 数据；服务器模式 → 接口返回的数据；服务器模式未拉到则返回 null
export function getCurrentUser() {
  if (!isServerMode()) return mockCurrentUser
  const stored = uni.getStorageSync(CURRENT_USER_KEY)
  return mapCurrentUser(stored)
}

export function getAuthCredentials() {
  const userInfo = uni.getStorageSync(USER_INFO_KEY) || {}
  return {
    token: userInfo.token || '',
    sessionId: userInfo.sessionId || '',
  }
}

export function clearDemoStorage() {
  [APPLY_KEY, DRAFT_KEY, APPROVAL_KEY, TRAINING_KEY, PROFILE_KEY, ONBOARD_MATERIALS_KEY, ONBOARD_LIST_KEY, ONBOARD_INVITATION_KEY, ONBOARD_DRAFT_KEY, RESIGN_KEY].forEach((key) =>
    uni.removeStorageSync(key),
  )
}

// 入职记录持久化：mock 中的 defaultOnboardings 是只读示例，
// 用户通过创建表单新增 / 编辑的记录存在 ONBOARD_LIST_KEY
export function getCustomOnboardings() {
  const saved = uni.getStorageSync(ONBOARD_LIST_KEY)
  return Array.isArray(saved) ? saved : []
}

export function addOnboarding(staff) {
  if (!staff || !staff.id) return getCustomOnboardings()
  const list = getCustomOnboardings()
  list.unshift(staff)
  uni.setStorageSync(ONBOARD_LIST_KEY, list)
  return list
}

export function updateOnboarding(id, patch) {
  if (!id) return getCustomOnboardings()
  const list = getCustomOnboardings()
  const idx = list.findIndex((o) => o.id === id)
  if (idx >= 0) {
    list[idx] = { ...list[idx], ...patch }
    uni.setStorageSync(ONBOARD_LIST_KEY, list)
  }
  return list
}

export function removeOnboarding(id) {
  if (!id) return getCustomOnboardings()
  const list = getCustomOnboardings().filter((o) => o.id !== id)
  uni.setStorageSync(ONBOARD_LIST_KEY, list)
  return list
}

export function getOnboardingById(id, defaults = []) {
  const custom = getCustomOnboardings().find((o) => o.id === id)
  if (custom) return custom
  return defaults.find((o) => o.id === id) || null
}

// 把 mock 默认数据 + 用户新增的合并；用户数据优先
export function mergeOnboardings(defaults = []) {
  const custom = getCustomOnboardings()
  const ids = new Set(custom.map((o) => o.id))
  return [...custom, ...defaults.filter((o) => !ids.has(o.id))]
}

// 入职邀请链接持久化（mock 中 defaultOnboardingInvitations 是只读示例）
export function getOnboardingInvitations() {
  const saved = uni.getStorageSync(ONBOARD_INVITATION_KEY)
  return Array.isArray(saved) ? saved : []
}

export function addOnboardingInvitation(invite) {
  if (!invite || !invite.invitationId) return getOnboardingInvitations()
  const list = getOnboardingInvitations()
  list.unshift(invite)
  uni.setStorageSync(ONBOARD_INVITATION_KEY, list)
  return list
}

export function updateOnboardingInvitation(invitationId, patch) {
  if (!invitationId) return getOnboardingInvitations()
  const list = getOnboardingInvitations()
  const idx = list.findIndex((i) => i.invitationId === invitationId)
  if (idx >= 0) {
    list[idx] = { ...list[idx], ...patch }
    uni.setStorageSync(ONBOARD_INVITATION_KEY, list)
  }
  return list
}

export function getOnboardingInvitationById(invitationId) {
  return getOnboardingInvitations().find((i) => i.invitationId === invitationId) || null
}

// 入职创建表单草稿（按 latest-by-type 持久化一份）
export function saveOnboardingDraft(draft) {
  if (!draft) return null
  uni.setStorageSync(ONBOARD_DRAFT_KEY, { ...draft, savedAt: Date.now() })
  return draft
}

export function loadOnboardingDraft() {
  return uni.getStorageSync(ONBOARD_DRAFT_KEY) || null
}

export function clearOnboardingDraft() {
  uni.removeStorageSync(ONBOARD_DRAFT_KEY)
}

// 入职材料上传：按 employeeId → materialKey → FileInfo[] 索引
// FileInfo = { id, name, path, size, uploadedAt, sourceType }
// 演示版只存元信息 + 本地临时路径，不上传到对象存储
export function getOnboardMaterials(employeeId) {
  if (!employeeId) return {}
  const all = uni.getStorageSync(ONBOARD_MATERIALS_KEY) || {}
  const record = all[employeeId]
  return record && typeof record === 'object' ? record : {}
}

export function getOnboardMaterialList(employeeId, materialKey) {
  const record = getOnboardMaterials(employeeId)
  const list = record[materialKey]
  return Array.isArray(list) ? list : []
}

export function addOnboardMaterial(employeeId, materialKey, file) {
  if (!employeeId || !materialKey) return []
  const all = uni.getStorageSync(ONBOARD_MATERIALS_KEY) || {}
  const prev = all[employeeId] && typeof all[employeeId] === 'object' ? all[employeeId] : {}
  const list = Array.isArray(prev[materialKey]) ? prev[materialKey] : []
  const item = {
    id: `mat_${Date.now()}_${Math.floor(Math.random() * 1000)}`,
    name: file.name || `材料_${materialKey}`,
    path: file.path || '',
    size: Number(file.size) || 0,
    sourceType: file.sourceType || 'album',
    uploadedAt: formatNow(),
  }
  const next = [...list, item]
  all[employeeId] = { ...prev, [materialKey]: next }
  uni.setStorageSync(ONBOARD_MATERIALS_KEY, all)
  return next
}

export function removeOnboardMaterial(employeeId, materialKey, fileId) {
  if (!employeeId || !materialKey) return []
  const all = uni.getStorageSync(ONBOARD_MATERIALS_KEY) || {}
  const prev = all[employeeId] && typeof all[employeeId] === 'object' ? all[employeeId] : {}
  const list = Array.isArray(prev[materialKey]) ? prev[materialKey] : []
  const next = list.filter((f) => f.id !== fileId)
  all[employeeId] = { ...prev, [materialKey]: next }
  uni.setStorageSync(ONBOARD_MATERIALS_KEY, all)
  return next
}

export function renameOnboardMaterial(employeeId, materialKey, fileId, newName) {
  const trimmed = String(newName || '').trim()
  if (!employeeId || !materialKey || !trimmed) return []
  const all = uni.getStorageSync(ONBOARD_MATERIALS_KEY) || {}
  const prev = all[employeeId] && typeof all[employeeId] === 'object' ? all[employeeId] : {}
  const list = Array.isArray(prev[materialKey]) ? prev[materialKey] : []
  const next = list.map((f) => (f.id === fileId ? { ...f, name: trimmed } : f))
  all[employeeId] = { ...prev, [materialKey]: next }
  uni.setStorageSync(ONBOARD_MATERIALS_KEY, all)
  return next
}

// 把临时路径读取为 base64 dataURL，用于在 storage 中持久化预览
// - H5：tempFilePath 通常是 blob://，用 fetch + FileReader
// - 小程序：通过 uni.getFileSystemManager.readFile({ encoding: 'base64' })
// - App：由原生 chooseImage 返回本地绝对路径，读不到时回退空字符串
export async function readFileAsBase64(tempPath) {
  if (!tempPath) return ''
  // 已是 dataURL：直接返回
  if (tempPath.startsWith('data:')) return tempPath
  // #ifdef H5
  try {
    const resp = await fetch(tempPath)
    const blob = await resp.blob()
    return await new Promise((resolve) => {
      const reader = new FileReader()
      reader.onload = () => resolve(String(reader.result || ''))
      reader.onerror = () => resolve('')
      reader.readAsDataURL(blob)
    })
  } catch (e) {
    return ''
  }
  // #endif
  // #ifdef MP-WEIXIN
  return new Promise((resolve) => {
    if (!uni.getFileSystemManager) return resolve('')
    uni.getFileSystemManager().readFile({
      filePath: tempPath,
      encoding: 'base64',
      success: (res) => {
        const ext = (tempPath.match(/\.(\w+)$/)?.[1] || 'jpg').toLowerCase()
        const mime = ext === 'png' ? 'image/png' : ext === 'gif' ? 'image/gif' : 'image/jpeg'
        resolve(`data:${mime};base64,${res.data}`)
      },
      fail: () => resolve(''),
    })
  })
  // #endif
  // #ifdef APP-PLUS
  return new Promise((resolve) => {
    if (!plus || !plus.io) return resolve('')
    plus.io.resolveLocalFileSystemURL(
      tempPath,
      (entry) => entry.file(
        (file) => {
          const reader = new plus.nativeUI.FileReader()
          reader.onloadend = (e) => resolve(`data:image/jpeg;base64,${e.target.result}`)
          reader.onerror = () => resolve('')
          reader.readAsDataURL(file)
        },
        () => resolve(''),
      ),
      () => resolve(''),
    )
  })
  // #endif
}

// 演示版上传：模拟 0-100% 进度回调。真实接入时替换为 uni.uploadFile({ url: realEndpoint })
// 返回 { uploaded, url }，url 在演示版等于原临时路径
export function mockUpload(tempPath, { onProgress } = {}) {
  return new Promise((resolve) => {
    let progress = 0
    const tick = () => {
      progress += Math.floor(Math.random() * 25) + 15
      if (progress > 100) progress = 100
      onProgress?.(progress)
      if (progress >= 100) resolve({ uploaded: true, url: tempPath, mock: true })
      else setTimeout(tick, 120)
    }
    setTimeout(tick, 80)
  })
}

export function getApplications() {
  const saved = uni.getStorageSync(APPLY_KEY)
  return Array.isArray(saved) ? saved : []
}

export function addApplication(item) {
  const list = getApplications()
  // 若调用方已传 id（如服务器模式返回的单据主键），保留以便与后端对齐；
  // 否则按本地时间戳生成唯一 id
  const id = item && item.id ? item.id : Date.now()
  const { id: _omit, ...rest } = item || {}
  list.unshift({ ...rest, id, status: '审批中', createdAt: formatNow() })
  uni.setStorageSync(APPLY_KEY, list)
  return list
}

export function saveDraft(type, form) {
  const drafts = uni.getStorageSync(DRAFT_KEY) || {}
  drafts[type] = { ...form, savedAt: formatNow() }
  uni.setStorageSync(DRAFT_KEY, drafts)
}

export function getDraft(type) {
  const drafts = uni.getStorageSync(DRAFT_KEY) || {}
  return drafts[type] || null
}

export function removeDraft(type) {
  const drafts = uni.getStorageSync(DRAFT_KEY) || {}
  delete drafts[type]
  uni.setStorageSync(DRAFT_KEY, drafts)
}

export function getApprovalResults() {
  const saved = uni.getStorageSync(APPROVAL_KEY)
  return saved && typeof saved === 'object' ? saved : {}
}

export function setApprovalResult(id, status, comment = '') {
  const results = getApprovalResults()
  results[id] = { status, comment, handledAt: formatNow() }
  uni.setStorageSync(APPROVAL_KEY, results)
  return results[id]
}

export function getTrainingProgress(defaults) {
  const saved = uni.getStorageSync(TRAINING_KEY) || {}
  return defaults.map((item) => ({ ...item, progress: saved[item.id] ?? item.progress }))
}

export function setTrainingProgress(id, progress) {
  const saved = uni.getStorageSync(TRAINING_KEY) || {}
  saved[id] = progress
  uni.setStorageSync(TRAINING_KEY, saved)
}

export function saveProfileChange(item) {
  const list = uni.getStorageSync(PROFILE_KEY) || []
  list.unshift({ ...item, id: Date.now(), status: '审核中', createdAt: formatNow() })
  uni.setStorageSync(PROFILE_KEY, list)
  return list
}

export function getResignations() {
  const saved = uni.getStorageSync(RESIGN_KEY)
  return saved && typeof saved === 'object' ? saved : {}
}

export function getResignDetail(id) {
  if (!id) return null
  const all = getResignations()
  return all[id] && typeof all[id] === 'object' ? all[id] : null
}

export function setResignStage(id, stageKey, state = 'done') {
  if (!id || !stageKey) return null
  const all = getResignations()
  const prev = all[id] && typeof all[id] === 'object' ? all[id] : {}
  const stages = prev.stages && typeof prev.stages === 'object' ? prev.stages : {}
  stages[stageKey] = state
  all[id] = { ...prev, stages, updatedAt: formatNow() }
  uni.setStorageSync(RESIGN_KEY, all)
  return all[id]
}

export function setResignStatus(id, status) {
  if (!id || !status) return null
  const all = getResignations()
  const prev = all[id] && typeof all[id] === 'object' ? all[id] : {}
  all[id] = { ...prev, status, updatedAt: formatNow() }
  uni.setStorageSync(RESIGN_KEY, all)
  return all[id]
}

export function addResignAssetReturn(id, assetName, returned = true) {
  if (!id || !assetName) return null
  const all = getResignations()
  const prev = all[id] && typeof all[id] === 'object' ? all[id] : {}
  const map = prev.assetReturnMap && typeof prev.assetReturnMap === 'object' ? prev.assetReturnMap : {}
  map[assetName] = !!returned
  all[id] = { ...prev, assetReturnMap: map, updatedAt: formatNow() }
  uni.setStorageSync(RESIGN_KEY, all)
  return all[id]
}

export function setResignLocalState(id, patch) {
  if (!id || !patch || typeof patch !== 'object') return null
  const all = getResignations()
  const prev = all[id] && typeof all[id] === 'object' ? all[id] : {}
  all[id] = { ...prev, ...patch, updatedAt: formatNow() }
  uni.setStorageSync(RESIGN_KEY, all)
  return all[id]
}

export function formatNow() {
  const d = new Date()
  const pad = (n) => String(n).padStart(2, '0')
  return `${d.getFullYear()}-${pad(d.getMonth() + 1)}-${pad(d.getDate())} ${pad(d.getHours())}:${pad(d.getMinutes())}`
}