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

import { Response } from "express";
import { AuthenticatedRequest } from "../types/auth";
import * as svc from "../services/outsourcePurchaseService";
import { logger } from "../utils/logger";

function ok(res: Response, data: any, message = "성공") {
  return res.json({ success: true, data, message });
}
function fail(res: Response, status: number, message: string, error?: any) {
  if (error) logger.error(message, { error: error?.message });
  return res.status(status).json({ success: false, message });
}

// ─────────────────────────────────────────────────────────────────────────────
// 목록
// ─────────────────────────────────────────────────────────────────────────────
export async function listOutsourceOrders(
  req: AuthenticatedRequest,
  res: Response
) {
  try {
    const companyCode = req.user!.companyCode;
    const opts: svc.ListFilter = {
      keyword: req.query.keyword as string | undefined,
      status: req.query.status as string | undefined,
      source_type: req.query.source_type as string | undefined,
      date_from: req.query.date_from as string | undefined,
      date_to: req.query.date_to as string | undefined,
      page: req.query.page ? parseInt(req.query.page as string, 10) : 1,
      size:
        req.query.size !== undefined
          ? parseInt(req.query.size as string, 10)
          : 50,
      sort: req.query.sort as string | undefined,
    };
    const data = await svc.listOrders(companyCode, opts);
    return ok(res, data);
  } catch (e: any) {
    return fail(res, 500, e?.message || "외주발주 목록 조회 실패", e);
  }
}

// ─────────────────────────────────────────────────────────────────────────────
// 상세
// ─────────────────────────────────────────────────────────────────────────────
export async function getOutsourceOrderDetail(
  req: AuthenticatedRequest,
  res: Response
) {
  try {
    const companyCode = req.user!.companyCode;
    const id = req.params.id;
    if (!id) return fail(res, 400, "id 파라미터가 필요합니다");
    const data = await svc.getOrderDetail(companyCode, id);
    if (!data) return fail(res, 404, "외주발주를 찾을 수 없습니다");
    return ok(res, data);
  } catch (e: any) {
    return fail(res, 500, e?.message || "외주발주 상세 조회 실패", e);
  }
}

// ─────────────────────────────────────────────────────────────────────────────
// 등록
// ─────────────────────────────────────────────────────────────────────────────
export async function createOutsourceOrder(
  req: AuthenticatedRequest,
  res: Response
) {
  try {
    const companyCode = req.user!.companyCode;
    const userId = req.user!.userId || "system";
    const payload = req.body as svc.OPOInput;
    if (!payload || !payload.source_type) {
      return fail(res, 400, "source_type은 필수입니다");
    }
    const data = await svc.createOrder(companyCode, userId, payload);
    return ok(res, data, "외주발주 등록 완료");
  } catch (e: any) {
    return fail(res, 500, e?.message || "외주발주 등록 실패", e);
  }
}

// ─────────────────────────────────────────────────────────────────────────────
// 수정
// ─────────────────────────────────────────────────────────────────────────────
export async function updateOutsourceOrder(
  req: AuthenticatedRequest,
  res: Response
) {
  try {
    const companyCode = req.user!.companyCode;
    const userId = req.user!.userId || "system";
    const id = req.params.id;
    if (!id) return fail(res, 400, "id 파라미터가 필요합니다");
    const data = await svc.updateOrder(
      companyCode,
      userId,
      id,
      req.body as svc.OPOInput
    );
    return ok(res, data, "외주발주 수정 완료");
  } catch (e: any) {
    return fail(res, 500, e?.message || "외주발주 수정 실패", e);
  }
}

// ─────────────────────────────────────────────────────────────────────────────
// 삭제
// ─────────────────────────────────────────────────────────────────────────────
export async function deleteOutsourceOrder(
  req: AuthenticatedRequest,
  res: Response
) {
  try {
    const companyCode = req.user!.companyCode;
    const id = req.params.id;
    if (!id) return fail(res, 400, "id 파라미터가 필요합니다");
    const data = await svc.deleteOrder(companyCode, id);
    return ok(res, data, "외주발주 삭제 완료");
  } catch (e: any) {
    return fail(res, 400, e?.message || "외주발주 삭제 실패", e);
  }
}

// ─────────────────────────────────────────────────────────────────────────────
// 사급자재 출고요청
// ─────────────────────────────────────────────────────────────────────────────
export async function requestRelease(
  req: AuthenticatedRequest,
  res: Response
) {
  try {
    const companyCode = req.user!.companyCode;
    const userId = req.user!.userId || "system";
    const payload = req.body as svc.ReleaseRequestPayload;
    if (
      !payload ||
      !Array.isArray(payload.material_ids) ||
      payload.material_ids.length === 0
    ) {
      return fail(res, 400, "material_ids 배열이 필요합니다");
    }
    const data = await svc.requestRelease(companyCode, userId, payload);
    return ok(res, data, "사급자재 출고요청 완료");
  } catch (e: any) {
    return fail(res, 400, e?.message || "사급자재 출고요청 실패", e);
  }
}

// ─────────────────────────────────────────────────────────────────────────────
// 공정 자동표기 (헬퍼)
// (TASK:ERP-019 재구현 — work_order_id 우선, item_code는 폴백)
// ─────────────────────────────────────────────────────────────────────────────
export async function autoProcesses(
  req: AuthenticatedRequest,
  res: Response
) {
  try {
    const companyCode = req.user!.companyCode;
    const itemCode = req.query.item_code as string | undefined;
    const workOrderId = req.query.work_order_id as string | undefined;
    if (!workOrderId && !itemCode) {
      return fail(res, 400, "work_order_id 또는 item_code 중 하나는 필수입니다");
    }
    const data = await svc.autoSelectProcesses(companyCode, workOrderId, itemCode);
    return ok(res, data);
  } catch (e: any) {
    return fail(res, 500, e?.message || "공정 자동표기 실패", e);
  }
}

// ─────────────────────────────────────────────────────────────────────────────
// 외주발주번호 미리보기 — 모달 진입 시 input 자동 채움용 (시퀀스 증가 없음)
// ─────────────────────────────────────────────────────────────────────────────
export async function previewOrderNo(
  req: AuthenticatedRequest,
  res: Response,
) {
  try {
    const companyCode = req.user!.companyCode;
    const code = await svc.previewOrderNo(companyCode);
    return ok(res, { generatedCode: code || "" });
  } catch (e: any) {
    return fail(res, 500, e?.message || "외주발주번호 미리보기 실패", e);
  }
}

// ─────────────────────────────────────────────────────────────────────────────
// 공정 자재투입(material_input) 자동 채움
// — 사급자재 체크 시 해당 공정의 자재 목록을 외주발주 자재 형식으로 반환
// ─────────────────────────────────────────────────────────────────────────────
export async function getProcessMaterials(
  req: AuthenticatedRequest,
  res: Response,
) {
  try {
    const companyCode = req.user!.companyCode;
    const workOrderId = req.query.work_order_id as string | undefined;
    const routingDetailId = req.query.routing_detail_id as string | undefined;
    if (!routingDetailId) {
      return fail(res, 400, "routing_detail_id는 필수입니다");
    }
    const data = await svc.getProcessMaterialInputs(
      companyCode,
      workOrderId,
      routingDetailId,
    );
    return ok(res, data);
  } catch (e: any) {
    return fail(res, 500, e?.message || "공정 자재투입 조회 실패", e);
  }
}

// ─────────────────────────────────────────────────────────────────────────────
// 외주발주현황 통합 조회 (TASK:ERP-025)
// ─────────────────────────────────────────────────────────────────────────────
export async function listOrderStatus(
  req: AuthenticatedRequest,
  res: Response,
) {
  try {
    const companyCode = req.user!.companyCode;
    const opts: svc.OrderStatusFilter = {
      keyword: req.query.keyword as string | undefined,
      source_type: req.query.source_type as string | undefined,
      order_status: req.query.order_status as string | undefined,
      release_status: req.query.release_status as string | undefined,
      date_from: req.query.date_from as string | undefined,
      date_to: req.query.date_to as string | undefined,
    };
    const data = await svc.listOrderStatus(companyCode, opts);
    return ok(res, data);
  } catch (e: any) {
    return fail(res, 500, e?.message || "외주발주현황 조회 실패", e);
  }
}

// ─────────────────────────────────────────────────────────────────────────────
// 외주발주 가능 작업지시 목록
// (TASK:ERP-019 재구현 — 좌측 리스트 필터)
// ─────────────────────────────────────────────────────────────────────────────
export async function listOutsourceableWorkOrders(
  req: AuthenticatedRequest,
  res: Response,
) {
  try {
    const companyCode = req.user!.companyCode;
    const opts: svc.OutsourceableListFilter = {
      keyword: req.query.keyword as string | undefined,
      page: req.query.page ? parseInt(req.query.page as string, 10) : 1,
      size: req.query.size !== undefined ? parseInt(req.query.size as string, 10) : 50,
    };
    const data = await svc.listOutsourceableWorkOrders(companyCode, opts);
    return ok(res, data);
  } catch (e: any) {
    return fail(res, 500, e?.message || "외주발주 가능 작업지시 조회 실패", e);
  }
}