ERP-node/backend-node/src/controllers/popProductionController.ts

import { Response } from "express";
import { getPool } from "../database/db";
import logger from "../utils/logger";
import { AuthenticatedRequest } from "../middleware/authMiddleware";

// 불량 상세 항목 타입
interface DefectDetailItem {
  defect_code: string;
  defect_name: string;
  qty: string;
  disposition: string;
}

/**
 * D-BE1: 작업지시 공정 일괄 생성
 * PC에서 작업지시 생성 후 호출. 1 트랜잭션으로 work_order_process + process_work_result 일괄 생성.
 */
export const createWorkProcesses = async (
  req: AuthenticatedRequest,
  res: Response
) => {
  const pool = getPool();
  const client = await pool.connect();

  try {
    const companyCode = req.user!.companyCode;
    const userId = req.user!.userId;

    const { work_instruction_id, item_code, routing_version_id, plan_qty } =
      req.body;

    if (!work_instruction_id || !routing_version_id) {
      return res.status(400).json({
        success: false,
        message:
          "work_instruction_id와 routing_version_id는 필수입니다.",
      });
    }

    logger.info("[pop/production] create-work-processes 요청", {
      companyCode,
      userId,
      work_instruction_id,
      item_code,
      routing_version_id,
      plan_qty,
    });

    await client.query("BEGIN");

    // 중복 호출 방지: 이미 생성된 공정이 있는지 확인
    const existCheck = await client.query(
      `SELECT COUNT(*) as cnt FROM work_order_process
       WHERE wo_id = $1 AND company_code = $2`,
      [work_instruction_id, companyCode]
    );
    if (parseInt(existCheck.rows[0].cnt, 10) > 0) {
      await client.query("ROLLBACK");
      return res.status(409).json({
        success: false,
        message: "이미 공정이 생성된 작업지시입니다.",
      });
    }

    // 1. item_routing_detail + process_mng JOIN (공정 목록 + 공정명)
    const routingDetails = await client.query(
      `SELECT rd.id, rd.seq_no, rd.process_code,
              COALESCE(pm.process_name, rd.process_code) as process_name,
              rd.is_required, rd.is_fixed_order, rd.standard_time
       FROM item_routing_detail rd
       LEFT JOIN process_mng pm ON pm.process_code = rd.process_code
         AND pm.company_code = rd.company_code
       WHERE rd.routing_version_id = $1 AND rd.company_code = $2
       ORDER BY CAST(rd.seq_no AS int) NULLS LAST`,
      [routing_version_id, companyCode]
    );

    if (routingDetails.rows.length === 0) {
      await client.query("ROLLBACK");
      return res.status(404).json({
        success: false,
        message: "라우팅 버전에 등록된 공정이 없습니다.",
      });
    }

    const processes: Array<{
      id: string;
      seq_no: string;
      process_name: string;
      checklist_count: number;
    }> = [];
    let totalChecklists = 0;

    for (const rd of routingDetails.rows) {
      // 2. work_order_process INSERT
      const wopResult = await client.query(
        `INSERT INTO work_order_process (
          company_code, wo_id, seq_no, process_code, process_name,
          is_required, is_fixed_order, standard_time, plan_qty,
          status, routing_detail_id, writer
        ) VALUES ($1, $2, $3, $4, $5, $6, $7, $8, $9, $10, $11, $12)
        RETURNING id`,
        [
          companyCode,
          work_instruction_id,
          rd.seq_no,
          rd.process_code,
          rd.process_name,
          rd.is_required,
          rd.is_fixed_order,
          rd.standard_time,
          plan_qty || null,
          parseInt(rd.seq_no, 10) === 1 ? "acceptable" : "waiting",
          rd.id,
          userId,
        ]
      );
      const wopId = wopResult.rows[0].id;

      // 3. process_work_result INSERT (스냅샷 복사)
      // process_work_item + process_work_item_detail에서 해당 routing_detail의 항목 조회 후 복사
      const snapshotResult = await client.query(
        `INSERT INTO process_work_result (
          company_code, work_order_process_id,
          source_work_item_id, source_detail_id,
          work_phase, item_title, item_sort_order,
          detail_content, detail_type, detail_sort_order, is_required,
          inspection_code, inspection_method, unit, lower_limit, upper_limit,
          input_type, lookup_target, display_fields, duration_minutes,
          status, writer
        )
        SELECT
          pwi.company_code, $1,
          pwi.id, pwd.id,
          pwi.work_phase, pwi.title, pwi.sort_order::text,
          pwd.content, pwd.detail_type, pwd.sort_order::text, pwd.is_required,
          pwd.inspection_code, pwd.inspection_method, pwd.unit, pwd.lower_limit, pwd.upper_limit,
          pwd.input_type, pwd.lookup_target, pwd.display_fields, pwd.duration_minutes::text,
          'pending', $2
        FROM process_work_item pwi
        JOIN process_work_item_detail pwd ON pwd.work_item_id = pwi.id
          AND pwd.company_code = pwi.company_code
        WHERE pwi.routing_detail_id = $3
          AND pwi.company_code = $4
        ORDER BY pwi.sort_order, pwd.sort_order`,
        [wopId, userId, rd.id, companyCode]
      );

      const checklistCount = snapshotResult.rowCount ?? 0;
      totalChecklists += checklistCount;

      processes.push({
        id: wopId,
        seq_no: rd.seq_no,
        process_name: rd.process_name,
        checklist_count: checklistCount,
      });

      logger.info("[pop/production] 공정 생성 완료", {
        wopId,
        processName: rd.process_name,
        checklistCount,
      });
    }

    await client.query("COMMIT");

    logger.info("[pop/production] create-work-processes 완료", {
      companyCode,
      work_instruction_id,
      total_processes: processes.length,
      total_checklists: totalChecklists,
    });

    return res.json({
      success: true,
      data: {
        processes,
        total_processes: processes.length,
        total_checklists: totalChecklists,
      },
    });
  } catch (error: any) {
    await client.query("ROLLBACK");
    logger.error("[pop/production] create-work-processes 오류:", error);
    return res.status(500).json({
      success: false,
      message: error.message || "공정 생성 중 오류가 발생했습니다.",
    });
  } finally {
    client.release();
  }
};

/**
 * D-BE2: 타이머 API (시작/일시정지/재시작)
 */
export const controlTimer = async (
  req: AuthenticatedRequest,
  res: Response
) => {
  const pool = getPool();

  try {
    const companyCode = req.user!.companyCode;
    const userId = req.user!.userId;

    const { work_order_process_id, action } = req.body;

    if (!work_order_process_id || !action) {
      return res.status(400).json({
        success: false,
        message: "work_order_process_id와 action은 필수입니다.",
      });
    }

    if (!["start", "pause", "resume", "complete"].includes(action)) {
      return res.status(400).json({
        success: false,
        message:
          "action은 start, pause, resume, complete 중 하나여야 합니다.",
      });
    }

    logger.info("[pop/production] timer 요청", {
      companyCode,
      userId,
      work_order_process_id,
      action,
    });

    let result;

    switch (action) {
      case "start":
        // 최초 1회만 설정, 이미 있으면 무시
        result = await pool.query(
          `UPDATE work_order_process
           SET started_at = CASE WHEN started_at IS NULL THEN NOW()::text ELSE started_at END,
               status = CASE WHEN status = 'waiting' THEN 'in_progress' ELSE status END,
               updated_date = NOW()
           WHERE id = $1 AND company_code = $2
           RETURNING id, started_at, status`,
          [work_order_process_id, companyCode]
        );
        break;

      case "pause":
        result = await pool.query(
          `UPDATE work_order_process
           SET paused_at = NOW()::text,
               updated_date = NOW()
           WHERE id = $1 AND company_code = $2 AND paused_at IS NULL
           RETURNING id, paused_at`,
          [work_order_process_id, companyCode]
        );
        break;

      case "resume":
        // 일시정지 시간 누적 후 paused_at 초기화
        result = await pool.query(
          `UPDATE work_order_process
           SET total_paused_time = (
             COALESCE(total_paused_time::int, 0)
             + EXTRACT(EPOCH FROM NOW() - paused_at::timestamp)::int
           )::text,
           paused_at = NULL,
           updated_date = NOW()
           WHERE id = $1 AND company_code = $2 AND paused_at IS NOT NULL
           RETURNING id, total_paused_time`,
          [work_order_process_id, companyCode]
        );
        break;

      case "complete": {
        const { good_qty, defect_qty } = req.body;

        const groupSumResult = await pool.query(
          `SELECT COALESCE(SUM(
            CASE WHEN group_started_at IS NOT NULL AND group_completed_at IS NOT NULL THEN
              EXTRACT(EPOCH FROM group_completed_at::timestamp - group_started_at::timestamp)::int
              - COALESCE(group_total_paused_time::int, 0)
            ELSE 0 END
          ), 0)::text AS total_work_seconds
          FROM process_work_result
          WHERE work_order_process_id = $1 AND company_code = $2`,
          [work_order_process_id, companyCode]
        );
        const calculatedWorkTime = groupSumResult.rows[0]?.total_work_seconds || "0";

        result = await pool.query(
          `UPDATE work_order_process
           SET status = 'completed',
               completed_at = NOW()::text,
               completed_by = $3,
               actual_work_time = $4,
               good_qty = COALESCE($5, good_qty),
               defect_qty = COALESCE($6, defect_qty),
               paused_at = NULL,
               updated_date = NOW()
           WHERE id = $1 AND company_code = $2
             AND status != 'completed'
           RETURNING id, status, completed_at, completed_by, actual_work_time, good_qty, defect_qty`,
          [
            work_order_process_id,
            companyCode,
            userId,
            calculatedWorkTime,
            good_qty || null,
            defect_qty || null,
          ]
        );
        break;
      }
    }

    if (!result || result.rowCount === 0) {
      return res.status(404).json({
        success: false,
        message: "대상 공정을 찾을 수 없거나 현재 상태에서 수행할 수 없습니다.",
      });
    }

    logger.info("[pop/production] timer 완료", {
      action,
      work_order_process_id,
      result: result.rows[0],
    });

    return res.json({
      success: true,
      data: result.rows[0],
    });
  } catch (error: any) {
    logger.error("[pop/production] timer 오류:", error);
    return res.status(500).json({
      success: false,
      message: error.message || "타이머 처리 중 오류가 발생했습니다.",
    });
  }
};

/**
 * 그룹(작업항목)별 타이머 제어
 * 좌측 사이드바의 각 작업 그룹마다 독립적인 시작/정지/재개/완료 타이머
 */
export const controlGroupTimer = async (
  req: AuthenticatedRequest,
  res: Response
) => {
  const pool = getPool();

  try {
    const companyCode = req.user!.companyCode;
    const { work_order_process_id, source_work_item_id, action } = req.body;

    if (!work_order_process_id || !source_work_item_id || !action) {
      return res.status(400).json({
        success: false,
        message:
          "work_order_process_id, source_work_item_id, action은 필수입니다.",
      });
    }

    if (!["start", "pause", "resume", "complete"].includes(action)) {
      return res.status(400).json({
        success: false,
        message:
          "action은 start, pause, resume, complete 중 하나여야 합니다.",
      });
    }

    logger.info("[pop/production] group-timer 요청", {
      companyCode,
      work_order_process_id,
      source_work_item_id,
      action,
    });

    const whereClause = `work_order_process_id = $1 AND source_work_item_id = $2 AND company_code = $3`;
    const baseParams = [work_order_process_id, source_work_item_id, companyCode];

    let result;

    switch (action) {
      case "start":
        result = await pool.query(
          `UPDATE process_work_result
           SET group_started_at = CASE WHEN group_started_at IS NULL THEN NOW()::text ELSE group_started_at END,
               updated_date = NOW()
           WHERE ${whereClause}
           RETURNING id, group_started_at`,
          baseParams
        );
        await pool.query(
          `UPDATE work_order_process
           SET started_at = NOW()::text, updated_date = NOW()
           WHERE id = $1 AND company_code = $2 AND started_at IS NULL`,
          [work_order_process_id, companyCode]
        );
        break;

      case "pause":
        result = await pool.query(
          `UPDATE process_work_result
           SET group_paused_at = NOW()::text,
               updated_date = NOW()
           WHERE ${whereClause} AND group_paused_at IS NULL
           RETURNING id, group_paused_at`,
          baseParams
        );
        break;

      case "resume":
        result = await pool.query(
          `UPDATE process_work_result
           SET group_total_paused_time = (
             COALESCE(group_total_paused_time::int, 0)
             + EXTRACT(EPOCH FROM NOW() - group_paused_at::timestamp)::int
           )::text,
           group_paused_at = NULL,
           updated_date = NOW()
           WHERE ${whereClause} AND group_paused_at IS NOT NULL
           RETURNING id, group_total_paused_time`,
          baseParams
        );
        break;

      case "complete": {
        result = await pool.query(
          `UPDATE process_work_result
           SET group_completed_at = NOW()::text,
               group_total_paused_time = CASE
                 WHEN group_paused_at IS NOT NULL THEN (
                   COALESCE(group_total_paused_time::int, 0)
                   + EXTRACT(EPOCH FROM NOW() - group_paused_at::timestamp)::int
                 )::text
                 ELSE group_total_paused_time
               END,
               group_paused_at = NULL,
               updated_date = NOW()
           WHERE ${whereClause}
           RETURNING id, group_started_at, group_completed_at, group_total_paused_time`,
          baseParams
        );
        break;
      }
    }

    if (!result || result.rowCount === 0) {
      return res.status(404).json({
        success: false,
        message: "대상 그룹을 찾을 수 없거나 현재 상태에서 수행할 수 없습니다.",
      });
    }

    logger.info("[pop/production] group-timer 완료", {
      action,
      source_work_item_id,
      affectedRows: result.rowCount,
    });

    return res.json({
      success: true,
      data: result.rows[0],
      affectedRows: result.rowCount,
    });
  } catch (error: any) {
    logger.error("[pop/production] group-timer 오류:", error);
    return res.status(500).json({
      success: false,
      message: error.message || "그룹 타이머 처리 중 오류가 발생했습니다.",
    });
  }
};

/**
 * 불량 유형 목록 조회 (defect_standard_mng)
 */
export const getDefectTypes = async (
  req: AuthenticatedRequest,
  res: Response
) => {
  const pool = getPool();

  try {
    const companyCode = req.user!.companyCode;

    let query: string;
    let params: unknown[];

    if (companyCode === "*") {
      query = `
        SELECT id, defect_code, defect_name, defect_type, severity, company_code
        FROM defect_standard_mng
        WHERE is_active = 'Y'
        ORDER BY defect_code`;
      params = [];
    } else {
      query = `
        SELECT id, defect_code, defect_name, defect_type, severity, company_code
        FROM defect_standard_mng
        WHERE is_active = 'Y' AND company_code = $1
        ORDER BY defect_code`;
      params = [companyCode];
    }

    const result = await pool.query(query, params);

    logger.info("[pop/production] defect-types 조회", {
      companyCode,
      count: result.rowCount,
    });

    return res.json({
      success: true,
      data: result.rows,
    });
  } catch (error: any) {
    logger.error("[pop/production] defect-types 오류:", error);
    return res.status(500).json({
      success: false,
      message: error.message || "불량 유형 조회 중 오류가 발생했습니다.",
    });
  }
};

/**
 * 실적 저장 (누적 방식)
 * 이번 차수 생산수량을 기존 누적치에 더한다.
 * result_status는 'draft' 유지 (확정 전까지 계속 추가 등록 가능)
 */
export const saveResult = async (
  req: AuthenticatedRequest,
  res: Response
) => {
  const pool = getPool();

  try {
    const companyCode = req.user!.companyCode;
    const userId = req.user!.userId;

    const {
      work_order_process_id,
      production_qty,
      good_qty,
      defect_qty,
      defect_detail,
      result_note,
    } = req.body;

    if (!work_order_process_id) {
      return res.status(400).json({
        success: false,
        message: "work_order_process_id는 필수입니다.",
      });
    }

    if (!production_qty || parseInt(production_qty, 10) <= 0) {
      return res.status(400).json({
        success: false,
        message: "생산수량을 입력해주세요.",
      });
    }

    const statusCheck = await pool.query(
      `SELECT status, result_status, total_production_qty, good_qty, defect_qty, input_qty
       FROM work_order_process
       WHERE id = $1 AND company_code = $2`,
      [work_order_process_id, companyCode]
    );

    if (statusCheck.rowCount === 0) {
      return res.status(404).json({
        success: false,
        message: "공정을 찾을 수 없습니다.",
      });
    }

    const prev = statusCheck.rows[0];

    if (prev.result_status === "confirmed") {
      return res.status(403).json({
        success: false,
        message: "이미 확정된 실적입니다. 추가 등록이 불가능합니다.",
      });
    }

    // 실적 누적이 접수량을 초과하지 않도록 검증
    const prevTotal = parseInt(prev.total_production_qty, 10) || 0;
    const acceptedQty = parseInt(prev.input_qty, 10) || 0;
    const requestedQty = parseInt(production_qty, 10) || 0;
    if (acceptedQty > 0 && (prevTotal + requestedQty) > acceptedQty) {
      return res.status(400).json({
        success: false,
        message: `실적 누적(${prevTotal + requestedQty})이 접수량(${acceptedQty})을 초과합니다. 추가 접수 후 등록해주세요.`,
      });
    }

    let defectDetailStr: string | null = null;
    if (defect_detail && Array.isArray(defect_detail)) {
      const validated = defect_detail.map((item: DefectDetailItem) => ({
        defect_code: item.defect_code || "",
        defect_name: item.defect_name || "",
        qty: item.qty || "0",
        disposition: item.disposition || "scrap",
      }));
      defectDetailStr = JSON.stringify(validated);
    }

    const addProduction = parseInt(production_qty, 10) || 0;
    const addGood = parseInt(good_qty, 10) || 0;
    const addDefect = parseInt(defect_qty, 10) || 0;

    const newTotal = (parseInt(prev.total_production_qty, 10) || 0) + addProduction;
    const newGood = (parseInt(prev.good_qty, 10) || 0) + addGood;
    const newDefect = (parseInt(prev.defect_qty, 10) || 0) + addDefect;

    // 기존 defect_detail에 이번 차수 상세를 병합
    let mergedDefectDetail: string | null = null;
    if (defectDetailStr) {
      let existingEntries: DefectDetailItem[] = [];
      try {
        existingEntries = prev.defect_detail ? JSON.parse(prev.defect_detail) : [];
      } catch { /* 파싱 실패 시 빈 배열 */ }
      const newEntries: DefectDetailItem[] = JSON.parse(defectDetailStr);
      // 같은 불량코드+처리방법 조합은 수량 합산
      const merged = [...existingEntries];
      for (const ne of newEntries) {
        const existing = merged.find(
          (e) => e.defect_code === ne.defect_code && e.disposition === ne.disposition
        );
        if (existing) {
          existing.qty = String(
            (parseInt(existing.qty, 10) || 0) + (parseInt(ne.qty, 10) || 0)
          );
        } else {
          merged.push(ne);
        }
      }
      mergedDefectDetail = JSON.stringify(merged);
    }

    const result = await pool.query(
      `UPDATE work_order_process
       SET total_production_qty = $3,
           good_qty = $4,
           defect_qty = $5,
           defect_detail = COALESCE($6, defect_detail),
           result_note = COALESCE($7, result_note),
           result_status = 'draft',
           status = CASE WHEN status IN ('acceptable', 'waiting') THEN 'in_progress' ELSE status END,
           writer = $8,
           updated_date = NOW()
       WHERE id = $1 AND company_code = $2
       RETURNING id, total_production_qty, good_qty, defect_qty, defect_detail, result_note, result_status, status`,
      [
        work_order_process_id,
        companyCode,
        String(newTotal),
        String(newGood),
        String(newDefect),
        mergedDefectDetail,
        result_note || null,
        userId,
      ]
    );

    if (result.rowCount === 0) {
      return res.status(404).json({
        success: false,
        message: "공정을 찾을 수 없거나 권한이 없습니다.",
      });
    }

    // 다음 공정 상태를 acceptable로 전환 (input_qty는 접수 버튼에서만 변경)
    const currentSeq = await pool.query(
      `SELECT wop.seq_no, wop.wo_id, wop.input_qty as current_input_qty,
              wi.qty as instruction_qty
       FROM work_order_process wop
       JOIN work_instruction wi ON wop.wo_id = wi.id AND wop.company_code = wi.company_code
       WHERE wop.id = $1 AND wop.company_code = $2`,
      [work_order_process_id, companyCode]
    );

    if (addGood > 0 && currentSeq.rowCount > 0) {
      const { seq_no, wo_id } = currentSeq.rows[0];
      const nextSeq = String(parseInt(seq_no, 10) + 1);
      const nextUpdate = await pool.query(
        `UPDATE work_order_process
         SET status = CASE WHEN status = 'waiting' THEN 'acceptable' ELSE status END,
             updated_date = NOW()
         WHERE wo_id = $1 AND seq_no = $2 AND company_code = $3
         RETURNING id, process_name, status`,
        [wo_id, nextSeq, companyCode]
      );
      if (nextUpdate.rowCount > 0) {
        logger.info("[pop/production] 다음 공정 상태 전환", {
          nextProcess: nextUpdate.rows[0],
        });
      }
    }

    // 자동 완료 체크: 접수가능 잔여 0 + 접수한 수량 전부 완료 시 자동 completed
    if (currentSeq.rowCount > 0) {
      const { seq_no, wo_id, current_input_qty, instruction_qty } = currentSeq.rows[0];
      const seqNum = parseInt(seq_no, 10);
      const myInputQty = parseInt(current_input_qty, 10) || 0;
      const instrQty = parseInt(instruction_qty, 10) || 0;

      // 앞공정 완료량 계산
      let prevGoodQty = instrQty;
      if (seqNum > 1) {
        const prevSeq = String(seqNum - 1);
        const prevProcess = await pool.query(
          `SELECT COALESCE(good_qty::int, 0) as good_qty
           FROM work_order_process
           WHERE wo_id = $1 AND seq_no = $2 AND company_code = $3`,
          [wo_id, prevSeq, companyCode]
        );
        if (prevProcess.rowCount > 0) {
          prevGoodQty = prevProcess.rows[0].good_qty;
        }
      }

      const remainingAcceptable = prevGoodQty - myInputQty;
      const allProduced = newTotal >= myInputQty && myInputQty > 0;

      if (remainingAcceptable <= 0 && allProduced) {
        await pool.query(
          `UPDATE work_order_process
           SET status = 'completed',
               result_status = 'confirmed',
               completed_at = NOW()::text,
               completed_by = $3,
               updated_date = NOW()
           WHERE id = $1 AND company_code = $2
             AND status != 'completed'`,
          [work_order_process_id, companyCode, userId]
        );
        logger.info("[pop/production] 자동 완료 처리", {
          work_order_process_id,
          remainingAcceptable,
          newTotal,
          myInputQty,
        });
      }
    }

    logger.info("[pop/production] save-result 완료 (누적)", {
      companyCode,
      work_order_process_id,
      added: { production_qty: addProduction, good_qty: addGood, defect_qty: addDefect },
      accumulated: { total: newTotal, good: newGood, defect: newDefect },
    });

    // 자동 완료 후 최신 데이터 반환 (status가 변경되었을 수 있음)
    const latestData = await pool.query(
      `SELECT id, total_production_qty, good_qty, defect_qty, defect_detail, result_note, result_status, status, input_qty
       FROM work_order_process WHERE id = $1 AND company_code = $2`,
      [work_order_process_id, companyCode]
    );

    return res.json({
      success: true,
      data: latestData.rows[0] || result.rows[0],
    });
  } catch (error: any) {
    logger.error("[pop/production] save-result 오류:", error);
    return res.status(500).json({
      success: false,
      message: error.message || "실적 저장 중 오류가 발생했습니다.",
    });
  }
};

/**
 * 실적 확정은 더 이상 단일 확정이 아님.
 * 마지막 등록 확인 용도로 유지. 실적은 save-result에서 차수별로 쌓임.
 */
export const confirmResult = async (
  req: AuthenticatedRequest,
  res: Response
) => {
  const pool = getPool();

  try {
    const companyCode = req.user!.companyCode;
    const userId = req.user!.userId;

    const { work_order_process_id } = req.body;

    if (!work_order_process_id) {
      return res.status(400).json({
        success: false,
        message: "work_order_process_id는 필수입니다.",
      });
    }

    const statusCheck = await pool.query(
      `SELECT status, result_status, total_production_qty FROM work_order_process
       WHERE id = $1 AND company_code = $2`,
      [work_order_process_id, companyCode]
    );

    if (statusCheck.rowCount === 0) {
      return res.status(404).json({
        success: false,
        message: "공정을 찾을 수 없습니다.",
      });
    }

    const currentProcess = statusCheck.rows[0];

    if (!currentProcess.total_production_qty ||
        parseInt(currentProcess.total_production_qty, 10) <= 0) {
      return res.status(400).json({
        success: false,
        message: "등록된 실적이 없습니다. 실적을 먼저 등록해주세요.",
      });
    }

    // 잔여 접수가능량 계산하여 completed 여부 결정
    const seqCheck = await pool.query(
      `SELECT wop.seq_no, wop.wo_id, wop.input_qty,
              wi.qty as instruction_qty
       FROM work_order_process wop
       JOIN work_instruction wi ON wop.wo_id = wi.id AND wop.company_code = wi.company_code
       WHERE wop.id = $1 AND wop.company_code = $2`,
      [work_order_process_id, companyCode]
    );

    let shouldComplete = false;
    if (seqCheck.rowCount > 0) {
      const { seq_no, wo_id, input_qty: currentInputQty, instruction_qty } = seqCheck.rows[0];
      const seqNum = parseInt(seq_no, 10);
      const myInputQty = parseInt(currentInputQty, 10) || 0;
      const instrQty = parseInt(instruction_qty, 10) || 0;

      let prevGoodQty = instrQty;
      if (seqNum > 1) {
        const prevSeq = String(seqNum - 1);
        const prevProcess = await pool.query(
          `SELECT COALESCE(good_qty::int, 0) as good_qty
           FROM work_order_process
           WHERE wo_id = $1 AND seq_no = $2 AND company_code = $3`,
          [wo_id, prevSeq, companyCode]
        );
        if (prevProcess.rowCount > 0) {
          prevGoodQty = prevProcess.rows[0].good_qty;
        }
      }

      const remainingAcceptable = prevGoodQty - myInputQty;
      const totalProduced = parseInt(currentProcess.total_production_qty, 10) || 0;
      shouldComplete = remainingAcceptable <= 0 && totalProduced >= myInputQty && myInputQty > 0;
    }

    // shouldComplete = true: 전량 완료 -> completed
    // shouldComplete = false: 부분 확정 -> batch_done (진행 탭에서 숨김)
    const newStatus = shouldComplete ? "completed" : "batch_done";

    const result = await pool.query(
      `UPDATE work_order_process
       SET result_status = 'confirmed',
           status = $4,
           completed_at = CASE WHEN $4 = 'completed' THEN NOW()::text ELSE completed_at END,
           completed_by = CASE WHEN $4 = 'completed' THEN $3 ELSE completed_by END,
           writer = $3,
           updated_date = NOW()
       WHERE id = $1 AND company_code = $2
       RETURNING id, status, result_status, total_production_qty, good_qty, defect_qty`,
      [work_order_process_id, companyCode, userId, newStatus]
    );

    if (result.rowCount === 0) {
      return res.status(404).json({
        success: false,
        message: "공정을 찾을 수 없습니다.",
      });
    }

    // completed로 전환된 경우에만 다음 공정 활성화
    if (shouldComplete && seqCheck.rowCount > 0) {
      const { seq_no, wo_id } = seqCheck.rows[0];
      const nextSeq = String(parseInt(seq_no, 10) + 1);
      await pool.query(
        `UPDATE work_order_process
         SET status = CASE WHEN status = 'waiting' THEN 'acceptable' ELSE status END,
             updated_date = NOW()
         WHERE wo_id = $1 AND seq_no = $2 AND company_code = $3`,
        [wo_id, nextSeq, companyCode]
      );
    }

    logger.info("[pop/production] confirm-result 완료", {
      companyCode,
      work_order_process_id,
      userId,
      shouldComplete,
      newStatus,
      finalStatus: result.rows[0].status,
    });

    return res.json({
      success: true,
      data: result.rows[0],
    });
  } catch (error: any) {
    logger.error("[pop/production] confirm-result 오류:", error);
    return res.status(500).json({
      success: false,
      message: error.message || "실적 확정 중 오류가 발생했습니다.",
    });
  }
};

/**
 * 실적 이력 조회 (work_order_process_log에서 차수별 추출)
 * total_production_qty 변경 이력 = 각 차수의 등록 기록
 */
export const getResultHistory = async (
  req: AuthenticatedRequest,
  res: Response
) => {
  const pool = getPool();

  try {
    const companyCode = req.user!.companyCode;
    const { work_order_process_id } = req.query;

    if (!work_order_process_id) {
      return res.status(400).json({
        success: false,
        message: "work_order_process_id는 필수입니다.",
      });
    }

    // 소유권 확인
    const ownerCheck = await pool.query(
      `SELECT id FROM work_order_process WHERE id = $1 AND company_code = $2`,
      [work_order_process_id, companyCode]
    );
    if (ownerCheck.rowCount === 0) {
      return res.status(404).json({ success: false, message: "공정을 찾을 수 없습니다." });
    }

    // 같은 changed_at 기준으로 그룹핑하여 차수별 이력 추출
    // total_production_qty가 증가한(new_value > old_value) 로그만 = 실적 등록 시점
    const historyResult = await pool.query(
      `WITH grouped AS (
         SELECT
           changed_at,
           MAX(changed_by) as changed_by,
           MAX(CASE WHEN changed_column = 'total_production_qty' THEN old_value END) as total_old,
           MAX(CASE WHEN changed_column = 'total_production_qty' THEN new_value END) as total_new,
           MAX(CASE WHEN changed_column = 'good_qty' THEN old_value END) as good_old,
           MAX(CASE WHEN changed_column = 'good_qty' THEN new_value END) as good_new,
           MAX(CASE WHEN changed_column = 'defect_qty' THEN old_value END) as defect_old,
           MAX(CASE WHEN changed_column = 'defect_qty' THEN new_value END) as defect_new
         FROM work_order_process_log
         WHERE original_id = $1
           AND changed_column IN ('total_production_qty', 'good_qty', 'defect_qty')
           AND new_value IS NOT NULL
         GROUP BY changed_at
       )
       SELECT * FROM grouped
       WHERE total_new IS NOT NULL
         AND (COALESCE(total_new::int, 0) - COALESCE(total_old::int, 0)) > 0
       ORDER BY changed_at ASC`,
      [work_order_process_id]
    );

    const batches = historyResult.rows.map((row: any, idx: number) => {
      const batchQty = (parseInt(row.total_new, 10) || 0) - (parseInt(row.total_old, 10) || 0);
      const batchGood = (parseInt(row.good_new, 10) || 0) - (parseInt(row.good_old, 10) || 0);
      const batchDefect = (parseInt(row.defect_new, 10) || 0) - (parseInt(row.defect_old, 10) || 0);

      return {
        seq: idx + 1,
        batch_qty: batchQty,
        batch_good: batchGood,
        batch_defect: batchDefect,
        accumulated_total: parseInt(row.total_new, 10) || 0,
        changed_at: row.changed_at,
        changed_by: row.changed_by,
      };
    });

    logger.info("[pop/production] result-history 조회", {
      work_order_process_id,
      batchCount: batches.length,
    });

    return res.json({
      success: true,
      data: batches,
    });
  } catch (error: any) {
    logger.error("[pop/production] result-history 오류:", error);
    return res.status(500).json({
      success: false,
      message: error.message || "이력 조회 중 오류가 발생했습니다.",
    });
  }
};

/**
 * 앞공정 완료량 + 접수가능량 조회
 * GET /api/pop/production/available-qty?work_order_process_id=xxx
 * 반환: { prevGoodQty, myInputQty, availableQty, instructionQty }
 */
export const getAvailableQty = async (req: AuthenticatedRequest, res: Response) => {
  const pool = getPool();
  try {
    const companyCode = req.user!.companyCode;
    const { work_order_process_id } = req.query;

    if (!work_order_process_id) {
      return res.status(400).json({
        success: false,
        message: "work_order_process_id가 필요합니다.",
      });
    }

    const current = await pool.query(
      `SELECT wop.seq_no, wop.wo_id, wop.input_qty,
              wi.qty as instruction_qty
       FROM work_order_process wop
       JOIN work_instruction wi ON wop.wo_id = wi.id AND wop.company_code = wi.company_code
       WHERE wop.id = $1 AND wop.company_code = $2`,
      [work_order_process_id, companyCode]
    );

    if (current.rowCount === 0) {
      return res.status(404).json({ success: false, message: "공정을 찾을 수 없습니다." });
    }

    const { seq_no, wo_id, input_qty, instruction_qty } = current.rows[0];
    const myInputQty = parseInt(input_qty, 10) || 0;
    const instrQty = parseInt(instruction_qty, 10) || 0;
    const seqNum = parseInt(seq_no, 10);

    let prevGoodQty = instrQty; // 첫 공정이면 지시수량이 상한
    if (seqNum > 1) {
      const prevSeq = String(seqNum - 1);
      const prevProcess = await pool.query(
        `SELECT COALESCE(good_qty::int, 0) as good_qty
         FROM work_order_process
         WHERE wo_id = $1 AND seq_no = $2 AND company_code = $3`,
        [wo_id, prevSeq, companyCode]
      );
      if (prevProcess.rowCount > 0) {
        prevGoodQty = prevProcess.rows[0].good_qty;
      }
    }

    const availableQty = Math.max(0, prevGoodQty - myInputQty);

    logger.info("[pop/production] available-qty 조회", {
      work_order_process_id,
      prevGoodQty,
      myInputQty,
      availableQty,
      instructionQty: instrQty,
    });

    return res.json({
      success: true,
      data: {
        prevGoodQty,
        myInputQty,
        availableQty,
        instructionQty: instrQty,
      },
    });
  } catch (error: any) {
    logger.error("[pop/production] available-qty 오류:", error);
    return res.status(500).json({
      success: false,
      message: error.message || "접수가능량 조회 중 오류가 발생했습니다.",
    });
  }
};

/**
 * 공정 접수 (수량 지정)
 * POST /api/pop/production/accept-process
 * body: { work_order_process_id, accept_qty }
 * - 접수 상한 = 앞공정.good_qty - 내.input_qty (첫 공정은 지시수량 - input_qty)
 * - 추가 접수 가능 (in_progress 상태에서도)
 * - status: acceptable/waiting -> in_progress (또는 이미 in_progress면 유지)
 */
export const acceptProcess = async (req: AuthenticatedRequest, res: Response) => {
  const pool = getPool();
  try {
    const companyCode = req.user!.companyCode;
    const userId = req.user!.userId;
    const { work_order_process_id, accept_qty } = req.body;

    if (!work_order_process_id || !accept_qty) {
      return res.status(400).json({
        success: false,
        message: "work_order_process_id와 accept_qty가 필요합니다.",
      });
    }

    const qty = parseInt(accept_qty, 10);
    if (qty <= 0) {
      return res.status(400).json({ success: false, message: "접수 수량은 1 이상이어야 합니다." });
    }

    const current = await pool.query(
      `SELECT wop.seq_no, wop.wo_id, wop.input_qty, wop.status, wop.accepted_by,
              wi.qty as instruction_qty
       FROM work_order_process wop
       JOIN work_instruction wi ON wop.wo_id = wi.id AND wop.company_code = wi.company_code
       WHERE wop.id = $1 AND wop.company_code = $2`,
      [work_order_process_id, companyCode]
    );

    if (current.rowCount === 0) {
      return res.status(404).json({ success: false, message: "공정을 찾을 수 없습니다." });
    }

    const { seq_no, wo_id, input_qty, status, instruction_qty } = current.rows[0];

    if (status === "completed") {
      return res.status(400).json({ success: false, message: "이미 완료된 공정입니다." });
    }
    if (status !== "acceptable" && status !== "in_progress") {
      return res.status(400).json({ success: false, message: `현재 상태(${status})에서는 접수할 수 없습니다.` });
    }

    const myInputQty = parseInt(input_qty, 10) || 0;
    const instrQty = parseInt(instruction_qty, 10) || 0;
    const seqNum = parseInt(seq_no, 10);

    // 앞공정 완료량 계산
    let prevGoodQty = instrQty;
    if (seqNum > 1) {
      const prevSeq = String(seqNum - 1);
      const prevProcess = await pool.query(
        `SELECT COALESCE(good_qty::int, 0) as good_qty
         FROM work_order_process
         WHERE wo_id = $1 AND seq_no = $2 AND company_code = $3`,
        [wo_id, prevSeq, companyCode]
      );
      if (prevProcess.rowCount > 0) {
        prevGoodQty = prevProcess.rows[0].good_qty;
      }
    }

    const availableQty = prevGoodQty - myInputQty;
    if (qty > availableQty) {
      return res.status(400).json({
        success: false,
        message: `접수가능량(${availableQty})을 초과합니다. (앞공정 완료: ${prevGoodQty}, 기접수: ${myInputQty})`,
      });
    }

    const newInputQty = myInputQty + qty;
    const result = await pool.query(
      `UPDATE work_order_process
       SET input_qty = $3,
           status = CASE WHEN status IN ('acceptable', 'waiting', 'batch_done') THEN 'in_progress' ELSE status END,
           result_status = CASE WHEN result_status = 'confirmed' THEN 'draft' ELSE result_status END,
           accepted_by = $4,
           started_at = CASE WHEN started_at IS NULL THEN NOW()::text ELSE started_at END,
           updated_date = NOW(),
           writer = $4
       WHERE id = $1 AND company_code = $2
       RETURNING id, input_qty, status, process_name, result_status`,
      [work_order_process_id, companyCode, String(newInputQty), userId]
    );

    logger.info("[pop/production] accept-process 완료", {
      companyCode,
      userId,
      work_order_process_id,
      addedQty: qty,
      newInputQty,
      prevGoodQty,
    });

    return res.json({
      success: true,
      data: result.rows[0],
      message: `${qty}개 접수 완료 (총 접수: ${newInputQty})`,
    });
  } catch (error: any) {
    logger.error("[pop/production] accept-process 오류:", error);
    return res.status(500).json({
      success: false,
      message: error.message || "접수 중 오류가 발생했습니다.",
    });
  }
};

/**
 * 접수 취소: input_qty를 0으로 리셋하고 status를 acceptable로 되돌림
 * 조건: 아직 실적(total_production_qty)이 없어야 함
 */
export const cancelAccept = async (
  req: AuthenticatedRequest,
  res: Response
) => {
  const pool = getPool();

  try {
    const companyCode = req.user!.companyCode;
    const userId = req.user!.userId;
    const { work_order_process_id } = req.body;

    if (!work_order_process_id) {
      return res.status(400).json({
        success: false,
        message: "work_order_process_id는 필수입니다.",
      });
    }

    const current = await pool.query(
      `SELECT id, status, input_qty, total_production_qty, result_status
       FROM work_order_process
       WHERE id = $1 AND company_code = $2`,
      [work_order_process_id, companyCode]
    );

    if (current.rowCount === 0) {
      return res.status(404).json({ success: false, message: "공정을 찾을 수 없습니다." });
    }

    const proc = current.rows[0];

    if (proc.status !== "in_progress") {
      return res.status(400).json({
        success: false,
        message: `현재 상태(${proc.status})에서는 접수 취소할 수 없습니다. 진행중 상태만 가능합니다.`,
      });
    }

    const totalProduced = parseInt(proc.total_production_qty ?? "0", 10) || 0;
    const currentInputQty = parseInt(proc.input_qty ?? "0", 10) || 0;

    // 미소진 접수분 = input_qty - total_production_qty
    const unproducedQty = currentInputQty - totalProduced;

    if (unproducedQty <= 0) {
      return res.status(400).json({
        success: false,
        message: "취소할 미소진 접수분이 없습니다. 모든 접수량에 대해 실적이 등록되었습니다.",
      });
    }

    // input_qty를 total_production_qty로 되돌림 (실적 있는 분량만 유지)
    // 실적이 0이면 완전 초기화, 실적이 있으면 부분 취소
    const newInputQty = totalProduced;
    const newStatus = totalProduced > 0 ? "in_progress" : "acceptable";

    const isFullCancel = newInputQty === 0;
    const result = await pool.query(
      `UPDATE work_order_process
       SET input_qty = $3,
           status = $4,
           accepted_by = CASE WHEN $6 THEN NULL ELSE accepted_by END,
           started_at = CASE WHEN $6 THEN NULL ELSE started_at END,
           updated_date = NOW(),
           writer = $5
       WHERE id = $1 AND company_code = $2
       RETURNING id, input_qty, status, process_name`,
      [work_order_process_id, companyCode, String(newInputQty), newStatus, userId, isFullCancel]
    );

    logger.info("[pop/production] cancel-accept 완료", {
      companyCode,
      userId,
      work_order_process_id,
      previousInputQty: currentInputQty,
      newInputQty,
      cancelledQty: unproducedQty,
    });

    return res.json({
      success: true,
      data: result.rows[0],
      message: `미소진 ${unproducedQty}개 접수가 취소되었습니다. (잔여 접수량: ${newInputQty})`,
    });
  } catch (error: any) {
    logger.error("[pop/production] cancel-accept 오류:", error);
    return res.status(500).json({
      success: false,
      message: error.message || "접수 취소 중 오류가 발생했습니다.",
    });
  }
};