import { session } from '@/stores/session.js'

const EVIDENCE_TYPES = Object.freeze([
  'PHOTO_STEP_1', 'PHOTO_STEP_2', 'PHOTO_STEP_3', 'PHOTO_STEP_4', 'SEAL'
])

// C02 supplies inboundId/inboundVersion and loading.pickingVersion. C04 supplies
// inbound-scoped task and evidence operations. No local task is promoted to a
// server success when any required identifier or version is absent.

function request(options) {
  const baseUrl = session.apiBase || '/api/platform/v1'
  const headers = { ...(options.header || {}) }
  if (session.token) headers.Authorization = `Bearer ${session.token}`
  if (session.requestId) headers['X-Request-Id'] = session.requestId

  return new Promise((resolve, reject) => {
    uni.request({
      ...options,
      url: `${baseUrl}${options.url}`,
      header: headers,
      success(response) {
        const body = response.data || {}
        const code = String(body.code ?? response.statusCode)
        if (code !== '200') {
          const error = new Error(body.message || '服务端请求失败')
          error.code = body.code || response.statusCode
          error.statusCode = response.statusCode
          reject(error)
          return
        }
        resolve(body.data)
      },
      fail(error) {
        const next = new Error(error.errMsg || '网络连接失败')
        next.network = true
        reject(next)
      }
    })
  })
}

function idempotencyKey(operation, inboundId) {
  return `pda-${operation}-${inboundId}-${Date.now()}-${Math.random().toString(36).slice(2, 8)}`
}

function tenantQuery(tenantId) {
  const value = tenantId ?? session.tenantId
  if (!value) throw new Error('缺少客户隔离标识 tenantId，无法请求现场任务')
  return String(value)
}

export function isRemoteReady(inboundId) {
  return Boolean(session.token && session.tenantId && inboundId)
}

export function listLoadingOrders({ page = 1, size = 50, keyword = '' } = {}) {
  const query = [`mainStatus=LOADING`, `page=${page}`, `size=${size}`]
  if (session.tenantId) query.push(`tenantId=${encodeURIComponent(session.tenantId)}`)
  if (keyword) query.push(`keyword=${encodeURIComponent(keyword)}`)
  return request({ url: `/orders?${query.join('&')}`, method: 'GET' }).then((data) => ({
    ...data,
    records: (data && data.records ? data.records : []).map(normalizePdaOrder)
  }))
}

export function normalizePdaOrder(row = {}) {
  row = row || {}
  return {
    ...row,
    inboundId: row.inboundId ?? row.inbound?.id ?? null,
    inboundVersion: row.inboundVersion ?? row.inbound?.version ?? null,
    pickingVersion: row.pickingVersion ?? row.loading?.pickingVersion ?? null
  }
}

export function normalizePickingTask(task = {}) {
  task = task || {}
  return {
    ...task,
    pickingVersion: task.pickingVersion ?? task.version ?? null,
    inboundVersion: task.inboundVersion ?? null
  }
}

export function getPickingTask(inboundId, tenantId) {
  return request({
    url: `/inbounds/${encodeURIComponent(inboundId)}/loading/picking?tenantId=${encodeURIComponent(tenantQuery(tenantId))}`,
    method: 'GET'
  })
}

export function startPicking(inboundId, payload, tenantId) {
  return request({
    url: `/inbounds/${encodeURIComponent(inboundId)}/loading/picking/start?tenantId=${encodeURIComponent(tenantQuery(tenantId))}`,
    method: 'POST',
    header: { 'Idempotency-Key': idempotencyKey('start-picking', inboundId) },
    data: payload
  })
}

export function completePicking(inboundId, payload, tenantId) {
  return request({
    url: `/inbounds/${encodeURIComponent(inboundId)}/loading/picking/complete?tenantId=${encodeURIComponent(tenantQuery(tenantId))}`,
    method: 'POST',
    header: { 'Idempotency-Key': idempotencyKey('complete-picking', inboundId) },
    data: payload
  })
}

export function getEvidence(inboundId, tenantId) {
  return request({
    url: `/inbounds/${encodeURIComponent(inboundId)}/loading/evidence?tenantId=${encodeURIComponent(tenantQuery(tenantId))}`,
    method: 'GET'
  })
}

export function upsertEvidence(inboundId, payload, tenantId) {
  if (!EVIDENCE_TYPES.includes(payload.evidenceType)) throw new Error('不支持的装柜证据类型')
  return request({
    url: `/inbounds/${encodeURIComponent(inboundId)}/loading/evidence?tenantId=${encodeURIComponent(tenantQuery(tenantId))}`,
    method: 'POST',
    header: { 'Idempotency-Key': idempotencyKey(`evidence-${payload.evidenceType}`, inboundId) },
    data: payload
  })
}

export function completeLoading(inboundId, payload, tenantId) {
  return request({
    url: `/inbounds/${encodeURIComponent(inboundId)}/loading/complete?tenantId=${encodeURIComponent(tenantQuery(tenantId))}`,
    method: 'POST',
    header: { 'Idempotency-Key': idempotencyKey('complete-loading', inboundId) },
    data: payload
  })
}

export { EVIDENCE_TYPES }