/**
 * 외주발주관리 API 클라이언트 (TASK:ERP-019)
 * 백엔드 라우트: /api/outsource-purchase
 *
 * 컨트롤러:
 *   GET    /                      목록
 *   GET    /auto-processes        공정 자동표기
 *   GET    /:id                   상세
 *   POST   /                      등록
 *   PUT    /:id                   수정
 *   DELETE /:id                   삭제
 *   POST   /release-request       사급자재 출고요청
 */

import { apiClient } from "@/lib/api/client";

// ─────────────────────────────────────────────────────────────────────────────
// 타입
// ─────────────────────────────────────────────────────────────────────────────

export type OPOSourceType = "수주" | "작업지시" | "품목정보" | "생산계획";
export type OPOStatus = "등록" | "진행중" | "완료" | "취소" | "출고요청";
export type ReleaseStatus = "대기" | "요청" | "완료";

export interface OPOMaterial {
  id?: string;
  item_code?: string;
  item_name?: string;
  qty?: number | string;
  unit?: string;
  release_status?: ReleaseStatus;
  release_date?: string | null;
  outbound_id?: string | null;
}

export interface OPOProcess {
  id?: string;
  seq: number;
  process_code?: string;
  process_name?: string;
  /** subcontractor_mng.id — 그룹핑·출고요청 키 */
  vendor_id?: string;
  /** 표시·하위호환용. 그룹핑 키로 사용하지 말 것 (사람이 바꿀 수 있음) */
  vendor_code?: string;
  vendor_name?: string;
  material_needed?: boolean;
  remark?: string;
  materials?: OPOMaterial[];
  /** 라우팅에 매핑된 외주사 후보 (드롭다운을 이 목록으로 제한) */
  vendor_options?: { id: string; code: string; name: string }[];
  /** item_routing_detail.id (사급자재 자동 채움 호출에 사용) */
  routing_detail_id?: string;
}

export interface OPOMaster {
  id?: string;
  company_code?: string;
  order_no?: string;
  source_type: string;
  source_no?: string;
  item_code?: string;
  item_name?: string;
  spec?: string;
  material?: string;
  quantity?: number | string;
  order_date?: string | null;
  due_date?: string | null;
  manager?: string;
  memo?: string;
  status?: OPOStatus;
  writer?: string;
  created_date?: string;
  updated_date?: string;
  // 목록 집계 필드
  process_count?: number;
  vendor_unassigned?: number;
  material_count?: number;
  material_pending?: number;
  first_process_name?: string;
  first_vendor_name?: string;
}

export interface OPODetail extends OPOMaster {
  processes: OPOProcess[];
}

export interface OPOInputPayload {
  order_no?: string;
  source_type: string;
  source_no?: string;
  item_code?: string;
  item_name?: string;
  spec?: string;
  material?: string;
  quantity?: number | string;
  order_date?: string | null;
  due_date?: string | null;
  manager?: string;
  memo?: string;
  status?: OPOStatus;
  processes?: OPOProcess[];
}

export interface ListParams {
  keyword?: string;
  status?: string;
  source_type?: string;
  date_from?: string;
  date_to?: string;
  page?: number;
  size?: number;
  sort?: string;
}

export interface ListResponse {
  rows: OPOMaster[];
  total: number;
  page: number;
  size: number;
}

export interface AutoProcessRouting {
  id: string;
  seq_no: number | string;
  process_code: string;
  process_name?: string;
  work_type?: string;
  execution_type?: string;
  outsource_supplier?: string;
  standard_time?: string | number;
  /** 작업지시 라우팅(work_order_process)에서 채워지는 필드 */
  wo_id?: string;
  plan_qty?: string | number;
  routing_detail_id?: string;
  result_status?: string;
}

export interface AutoProcessResponse {
  /** 데이터 출처 — 'work_order' (작업지시 라우팅) | 'item_routing' (품목 라우팅 폴백) | 'none' */
  source?: "work_order" | "item_routing" | "none";
  routing: AutoProcessRouting[];
  candidates: AutoProcessRouting[];
}

export interface OutsourceableWorkOrderRow {
  id: string;
  work_instruction_no: string;
  qty?: string | number;
  status?: string;
  progress_status?: string;
  item_id?: string;
  start_date?: string;
  end_date?: string;
  created_date?: string;
  /** 외주발주 가능한 첫 공정명 */
  next_process_name?: string;
  next_process_seq?: string | number;
  /** 외주/선택가능 연속 공정 개수 */
  outsourceable_count?: number;
}

export interface OutsourceableListResponse {
  rows: OutsourceableWorkOrderRow[];
  total: number;
  page: number;
  size: number;
}

export interface ReleaseRequestPayload {
  material_ids: string[];
  warehouse_code?: string;
  memo?: string;
}

export interface ReleaseRequestResult {
  outbound_ids: string[];
  material_ids: string[];
  outbound_count: number;
  material_count: number;
}

interface ApiEnvelope<T> {
  success: boolean;
  data?: T;
  message?: string;
}

// ─────────────────────────────────────────────────────────────────────────────
// API 호출
// ─────────────────────────────────────────────────────────────────────────────

/** 외주발주 목록 조회 */
export async function listOutsourcePurchaseOrders(params: ListParams = {}): Promise<ListResponse> {
  const res = await apiClient.get<ApiEnvelope<ListResponse>>("/outsource-purchase", { params });
  return res.data?.data || { rows: [], total: 0, page: 1, size: 50 };
}

/** 외주발주 상세 조회 (마스터+공정+자재) */
export async function getOutsourcePurchaseOrder(id: string): Promise<OPODetail | null> {
  const res = await apiClient.get<ApiEnvelope<OPODetail>>(`/outsource-purchase/${id}`);
  return res.data?.data || null;
}

/** 외주발주 등록 */
export async function createOutsourcePurchaseOrder(payload: OPOInputPayload): Promise<OPODetail> {
  const res = await apiClient.post<ApiEnvelope<OPODetail>>("/outsource-purchase", payload);
  if (!res.data?.success) throw new Error(res.data?.message || "외주발주 등록 실패");
  return res.data.data!;
}

/** 외주발주 수정 */
export async function updateOutsourcePurchaseOrder(id: string, payload: OPOInputPayload): Promise<OPODetail> {
  const res = await apiClient.put<ApiEnvelope<OPODetail>>(`/outsource-purchase/${id}`, payload);
  if (!res.data?.success) throw new Error(res.data?.message || "외주발주 수정 실패");
  return res.data.data!;
}

/** 외주발주 삭제 */
export async function deleteOutsourcePurchaseOrder(id: string): Promise<{ id: string; order_no: string }> {
  const res = await apiClient.delete<ApiEnvelope<{ id: string; order_no: string }>>(
    `/outsource-purchase/${id}`,
  );
  if (!res.data?.success) throw new Error(res.data?.message || "외주발주 삭제 실패");
  return res.data.data!;
}

/**
 * 공정 자동표기 (TASK:ERP-019 재구현)
 *
 * 우선순위:
 *   1) work_order_id 가 있으면 → work_order_process 기준 (작업지시별 라우팅 + 진행상황)
 *   2) work_order_id 가 없거나 작업지시 라우팅이 비어있으면 → item_code 기반 폴백
 *
 * 둘 중 하나는 반드시 제공해야 한다.
 */
export async function getAutoProcesses(
  args: { workOrderId?: string; itemCode?: string },
): Promise<AutoProcessResponse> {
  const params: Record<string, string> = {};
  if (args.workOrderId) params.work_order_id = args.workOrderId;
  if (args.itemCode) params.item_code = args.itemCode;
  if (!params.work_order_id && !params.item_code) {
    return { source: "none", routing: [], candidates: [] };
  }
  const res = await apiClient.get<ApiEnvelope<AutoProcessResponse>>(
    "/outsource-purchase/auto-processes",
    { params },
  );
  return res.data?.data || { source: "none", routing: [], candidates: [] };
}

/**
 * 공정 자재투입(material_input) 자동 채움 — 사급자재 체크 시 호출
 * 응답: 외주발주 자재 입력 형식 배열 [{item_code, item_name, qty, unit}]
 */
export async function getProcessMaterials(
  args: { workOrderId?: string; routingDetailId: string },
): Promise<Array<{ item_code: string; item_name: string; qty: string; unit: string }>> {
  if (!args.routingDetailId) return [];
  const params: Record<string, string> = { routing_detail_id: args.routingDetailId };
  if (args.workOrderId) params.work_order_id = args.workOrderId;
  const res = await apiClient.get<ApiEnvelope<Array<{ item_code: string; item_name: string; qty: string; unit: string }>>>(
    "/outsource-purchase/process-materials",
    { params },
  );
  return res.data?.data || [];
}

/**
 * 외주발주 가능 작업지시 목록 (TASK:ERP-019 재구현)
 * "이전 공정 완료 + 다음 공정 외주/선택가능" 작업지시만 반환
 */
export async function listOutsourceableWorkOrders(
  params: { keyword?: string; page?: number; size?: number } = {},
): Promise<OutsourceableListResponse> {
  const res = await apiClient.get<ApiEnvelope<OutsourceableListResponse>>(
    "/outsource-purchase/outsourceable-work-orders",
    { params },
  );
  return res.data?.data || { rows: [], total: 0, page: 1, size: 50 };
}

/** 사급자재 출고요청 (선택된 자재 ID 배열) */
export async function requestMaterialRelease(
  payload: ReleaseRequestPayload,
): Promise<ReleaseRequestResult> {
  const res = await apiClient.post<ApiEnvelope<ReleaseRequestResult>>(
    "/outsource-purchase/release-request",
    payload,
  );
  if (!res.data?.success) throw new Error(res.data?.message || "사급자재 출고요청 실패");
  return res.data.data!;
}

// ─────────────────────────────────────────────────────────────────────────────
// 보조 마스터 조회 (공통 table-management API 활용)
// ─────────────────────────────────────────────────────────────────────────────

/** 외주업체 마스터 조회 (subcontractor_mng) — 기존 외주사 활용 */
export async function listSubcontractors(): Promise<any[]> {
  const res = await apiClient.post(`/table-management/tables/subcontractor_mng/data`, {
    page: 1,
    size: 0,
    autoFilter: true,
  });
  return res.data?.data?.data || res.data?.data?.rows || [];
}

/** 수주 목록 조회 (sales_order_mng) — 등록 모달 좌측 소스 */
export async function listSalesOrdersForOPO(keyword?: string): Promise<any[]> {
  const filters: any[] = [];
  if (keyword) {
    filters.push({ columnName: "order_no", operator: "contains", value: keyword });
  }
  const res = await apiClient.post(`/table-management/tables/sales_order_mng/data`, {
    page: 1,
    size: 0,
    dataFilter: filters.length ? { enabled: true, filters } : undefined,
    autoFilter: true,
  });
  return res.data?.data?.data || res.data?.data?.rows || [];
}

/** 작업지시 목록 조회 (work_instruction) — 등록 모달 좌측 소스 */
export async function listWorkInstructionsForOPO(keyword?: string): Promise<any[]> {
  const filters: any[] = [];
  if (keyword) {
    filters.push({ columnName: "work_instruction_no", operator: "contains", value: keyword });
  }
  const res = await apiClient.post(`/table-management/tables/work_instruction/data`, {
    page: 1,
    size: 0,
    dataFilter: filters.length ? { enabled: true, filters } : undefined,
    autoFilter: true,
  });
  return res.data?.data?.data || res.data?.data?.rows || [];
}

/** 품목 마스터 조회 (item_info) — 등록 모달 좌측 소스 */
export async function listItemsForOPO(keyword?: string): Promise<any[]> {
  const filters: any[] = [];
  if (keyword) {
    filters.push({ columnName: "item_code", operator: "contains", value: keyword });
  }
  const res = await apiClient.post(`/table-management/tables/item_info/data`, {
    page: 1,
    size: 0,
    dataFilter: filters.length ? { enabled: true, filters } : undefined,
    autoFilter: true,
  });
  return res.data?.data?.data || res.data?.data?.rows || [];
}