import { http, unwrapApiResponse, type ApiEnvelope } from '@/shared/api/http'

export type TerminalDrayageStatus = 'WAITING_FOR_ARRIVAL' | 'ARRIVED' | 'PICKUP_SCHEDULED' | 'PICKED_UP' | 'UNLOADED' | 'EMPTY_RETURNED'
export type TerminalDrayageAction = 'SELECT_FLEET' | 'SCHEDULE_PICKUP' | 'RECORD_PICKUP' | 'RECORD_EMPTY_RETURN' | 'SEND_PICKUP_EMAIL'

export interface TerminalDrayageEmail {
  id: string
  fleetName: string
  recipient: string
  kind: 'REQUEST_PICKUP' | 'CANCEL_PICKUP'
  subject: string
  body: string
  status: 'PENDING' | 'SENDING' | 'SENT' | 'FAILED'
  attempts: number
  failureReason: string | null
  createdAt: string
  sentAt: string | null
}

export async function getTerminalDrayageEmails(containerId: string) {
  type Mailbox = { deliveryEnabled: boolean; records: TerminalDrayageEmail[] }
  const response = await http.get<ApiEnvelope<Mailbox>, ApiEnvelope<Mailbox>>(`${path}/${encodeURIComponent(containerId)}/emails`)
  const result = unwrapApiResponse(response)
  return { ...result, records: result.records.map((mail) => ({ ...mail, id: String(mail.id) })) }
}

export function sendTerminalDrayageEmail(containerId: string, expectedVersion: number) {
  return command(containerId, 'pickup-email', { expectedVersion })
}

export async function retryTerminalDrayageEmail(containerId: string, mailId: string) {
  const response = await http.post<ApiEnvelope<null>, ApiEnvelope<null>>(`${path}/${encodeURIComponent(containerId)}/emails/${encodeURIComponent(mailId)}/retry`)
  unwrapApiResponse(response)
}
export type EmptyReturnWarningStatus = 'NOT_APPLICABLE' | 'PENDING' | 'OVERDUE' | 'RESOLVED'

export interface EmptyReturnWarning {
  status: EmptyReturnWarningStatus
  deadlineAt: string | null
  overdueHours: number
  overdueDays: number
}

export interface TerminalDrayageView {
  containerBookingId: string
  containerNo: string | null
  oceanBookingId: string | null
  status: TerminalDrayageStatus
  version: number
  fleetSupplierId: string | null
  fleetSupplierName: string | null
  pickupAppointmentAt: string | null
  actualPickupAt: string | null
  estimatedEmptyReturnAt: string | null
  actualEmptyReturnAt: string | null
  unloadingCompletedAt: string | null
  emptyReturnWarning: EmptyReturnWarning
  allowedActions: TerminalDrayageAction[]
  updatedAt: string | null
}

export interface TerminalDrayageHistory {
  action: TerminalDrayageAction
  fromStatus: string
  toStatus: string
  fromVersion: number
  toVersion: number
  reason: string | null
  operatorId: string
  operatorName: string | null
  createdAt: string
}

const path = '/platform/v1/terminal-drayages'
function operationId(action: string) { return `terminal-drayage-${action}-${Date.now()}-${Math.random().toString(36).slice(2)}` }
function id(value: unknown): string { return value == null ? '' : String(value) }
function optionalId(value: unknown): string | null { return value == null ? null : String(value) }
function normalize(raw: TerminalDrayageView): TerminalDrayageView {
  return {
    ...raw,
    containerBookingId: id(raw.containerBookingId),
    oceanBookingId: optionalId(raw.oceanBookingId),
    fleetSupplierId: optionalId(raw.fleetSupplierId),
    version: Number(raw.version || 0),
    allowedActions: raw.allowedActions || [],
    emptyReturnWarning: {
      ...raw.emptyReturnWarning,
      overdueHours: Number(raw.emptyReturnWarning?.overdueHours || 0),
      overdueDays: Number(raw.emptyReturnWarning?.overdueDays || 0),
    },
  }
}

export async function listTerminalDrayages(containerBookingIds: string[]) {
  const params = new URLSearchParams()
  containerBookingIds.forEach((containerBookingId) => params.append('containerBookingIds', containerBookingId))
  const response = await http.get<ApiEnvelope<TerminalDrayageView[]>, ApiEnvelope<TerminalDrayageView[]>>(path, { params })
  return (unwrapApiResponse(response) || []).map(normalize)
}

export async function getTerminalDrayage(containerBookingId: string) {
  const response = await http.get<ApiEnvelope<TerminalDrayageView>, ApiEnvelope<TerminalDrayageView>>(`${path}/${encodeURIComponent(containerBookingId)}`)
  return normalize(unwrapApiResponse(response))
}

export async function getTerminalDrayageHistory(containerBookingId: string) {
  const response = await http.get<ApiEnvelope<TerminalDrayageHistory[]>, ApiEnvelope<TerminalDrayageHistory[]>>(`${path}/${encodeURIComponent(containerBookingId)}/history`)
  return (unwrapApiResponse(response) || []).map((item) => ({ ...item, operatorId: id(item.operatorId) }))
}

async function command(containerBookingId: string, action: string, body: object) {
  const response = await http.post<ApiEnvelope<TerminalDrayageView>, ApiEnvelope<TerminalDrayageView>>(
    `${path}/${encodeURIComponent(containerBookingId)}/${action}`,
    body,
    { headers: { 'Idempotency-Key': operationId(action) } },
  )
  return normalize(unwrapApiResponse(response))
}

export function selectTerminalDrayageFleet(containerBookingId: string, body: { expectedVersion: number; fleetSupplierId: string; fleetSupplierName?: string; reason?: string }) {
  return command(containerBookingId, 'fleet', body)
}
export function scheduleTerminalDrayagePickup(containerBookingId: string, body: { expectedVersion: number; pickupAppointmentAt: string; reason?: string }) {
  return command(containerBookingId, 'pickup-appointment', body)
}
export function recordTerminalDrayagePickup(containerBookingId: string, body: { expectedVersion: number; actualAt: string; remark?: string }) {
  return command(containerBookingId, 'pickup', body)
}
export function recordTerminalDrayageEmptyReturn(containerBookingId: string, body: { expectedVersion: number; actualAt: string; remark?: string }) {
  return command(containerBookingId, 'empty-return', body)
}