/**
 * 채번 규칙 관리 컨트롤러
 */

import { Router, Request, Response } from "express";
import { authenticateToken } from "../middleware/authMiddleware";
import { numberingRuleService } from "../services/numberingRuleService";
import { logger } from "../utils/logger";

const router = Router();

// 규칙 목록 조회
router.get("/", authenticateToken, async (req: Request, res: Response) => {
  const companyCode = req.user!.companyCode;

  try {
    const rules = await numberingRuleService.getRuleList(companyCode);
    return res.json({ success: true, data: rules });
  } catch (error: any) {
    logger.error("규칙 목록 조회 실패", { error: error.message });
    return res.status(500).json({ success: false, error: error.message });
  }
});

// 특정 규칙 조회
router.get("/:ruleId", authenticateToken, async (req: Request, res: Response) => {
  const companyCode = req.user!.companyCode;
  const { ruleId } = req.params;

  try {
    const rule = await numberingRuleService.getRuleById(ruleId, companyCode);
    if (!rule) {
      return res.status(404).json({ success: false, error: "규칙을 찾을 수 없습니다" });
    }
    return res.json({ success: true, data: rule });
  } catch (error: any) {
    logger.error("규칙 조회 실패", { error: error.message });
    return res.status(500).json({ success: false, error: error.message });
  }
});

// 규칙 생성
router.post("/", authenticateToken, async (req: Request, res: Response) => {
  const companyCode = req.user!.companyCode;
  const userId = req.user!.userId;
  const ruleConfig = req.body;

  try {
    if (!ruleConfig.ruleId || !ruleConfig.ruleName) {
      return res.status(400).json({ success: false, error: "규칙 ID와 규칙명은 필수입니다" });
    }

    if (!Array.isArray(ruleConfig.parts) || ruleConfig.parts.length === 0) {
      return res.status(400).json({ success: false, error: "최소 1개 이상의 규칙 파트가 필요합니다" });
    }

    const newRule = await numberingRuleService.createRule(ruleConfig, companyCode, userId);
    return res.status(201).json({ success: true, data: newRule });
  } catch (error: any) {
    if (error.code === "23505") {
      return res.status(409).json({ success: false, error: "이미 존재하는 규칙 ID입니다" });
    }
    logger.error("규칙 생성 실패", { error: error.message });
    return res.status(500).json({ success: false, error: error.message });
  }
});

// 규칙 수정
router.put("/:ruleId", authenticateToken, async (req: Request, res: Response) => {
  const companyCode = req.user!.companyCode;
  const { ruleId } = req.params;
  const updates = req.body;

  try {
    const updatedRule = await numberingRuleService.updateRule(ruleId, updates, companyCode);
    return res.json({ success: true, data: updatedRule });
  } catch (error: any) {
    if (error.message.includes("찾을 수 없거나")) {
      return res.status(404).json({ success: false, error: error.message });
    }
    logger.error("규칙 수정 실패", { error: error.message });
    return res.status(500).json({ success: false, error: error.message });
  }
});

// 규칙 삭제
router.delete("/:ruleId", authenticateToken, async (req: Request, res: Response) => {
  const companyCode = req.user!.companyCode;
  const { ruleId } = req.params;

  try {
    await numberingRuleService.deleteRule(ruleId, companyCode);
    return res.json({ success: true, message: "규칙이 삭제되었습니다" });
  } catch (error: any) {
    if (error.message.includes("찾을 수 없거나")) {
      return res.status(404).json({ success: false, error: error.message });
    }
    logger.error("규칙 삭제 실패", { error: error.message });
    return res.status(500).json({ success: false, error: error.message });
  }
});

// 코드 생성
router.post("/:ruleId/generate", authenticateToken, async (req: Request, res: Response) => {
  const companyCode = req.user!.companyCode;
  const { ruleId } = req.params;

  try {
    const generatedCode = await numberingRuleService.generateCode(ruleId, companyCode);
    return res.json({ success: true, data: { code: generatedCode } });
  } catch (error: any) {
    logger.error("코드 생성 실패", { error: error.message });
    return res.status(500).json({ success: false, error: error.message });
  }
});

// 시퀀스 초기화
router.post("/:ruleId/reset", authenticateToken, async (req: Request, res: Response) => {
  const companyCode = req.user!.companyCode;
  const { ruleId } = req.params;

  try {
    await numberingRuleService.resetSequence(ruleId, companyCode);
    return res.json({ success: true, message: "시퀀스가 초기화되었습니다" });
  } catch (error: any) {
    logger.error("시퀀스 초기화 실패", { error: error.message });
    return res.status(500).json({ success: false, error: error.message });
  }
});

export default router;