/**
 * POP 입출고관리 디테일 단건 조회 컨트롤러
 *
 * inout-history 카드 클릭 시 모달용 단건 조회 API 3종 (read-only).
 * 라우트는 popInventoryRoutes.ts 에서 source 별로 분리:
 *   GET /api/pop/inventory/inout-detail/inbound/:id   (+ ?detail_id=...)
 *   GET /api/pop/inventory/inout-detail/outbound/:id
 *   GET /api/pop/inventory/inout-detail/history/:id
 */

import type { Response } from "express";
import { getPool } from "../database/db";
import type { AuthenticatedRequest } from "../types/auth";
import { logger } from "../utils/logger";

// ===== inbound: inbound_mng (헤더) + inbound_detail (1행, optional) =====

export async function getInboundDetail(
	req: AuthenticatedRequest,
	res: Response,
) {
	try {
		const companyCode = req.user!.companyCode;
		const { id } = req.params;
		const { detail_id } = req.query as Record<string, string | undefined>;

		const pool = getPool();

		const headerSql = `
			SELECT
				im.*,
				wh.warehouse_name,
				u.user_name AS writer_name
			FROM inbound_mng im
			LEFT JOIN warehouse_info wh
				ON wh.warehouse_code = im.warehouse_code
				AND wh.company_code = im.company_code
			LEFT JOIN user_info u
				ON u.user_id = im.writer
				AND u.company_code = im.company_code
			WHERE im.id = $1
				AND ($2::text = '*' OR im.company_code = $2)
		`;
		const headerResult = await pool.query(headerSql, [id, companyCode]);
		if (headerResult.rowCount === 0) {
			return res
				.status(404)
				.json({ success: false, message: "입고 데이터를 찾을 수 없습니다." });
		}
		const header = headerResult.rows[0];

		let detail: Record<string, unknown> | null = null;
		if (detail_id) {
			const detailResult = await pool.query(
				`SELECT * FROM inbound_detail
				 WHERE id = $1
				   AND ($2::text = '*' OR company_code = $2)`,
				[detail_id, companyCode],
			);
			detail = detailResult.rows[0] ?? null;
		}

		return res.json({ success: true, data: { header, detail } });
	} catch (error: unknown) {
		const msg = error instanceof Error ? error.message : "조회 실패";
		logger.error("입고 디테일 단건 조회 실패", { error: msg });
		return res.status(500).json({ success: false, message: msg });
	}
}

// ===== outbound: outbound_mng (단건) =====

export async function getOutboundDetail(
	req: AuthenticatedRequest,
	res: Response,
) {
	try {
		const companyCode = req.user!.companyCode;
		const { id } = req.params;

		const pool = getPool();

		const sql = `
			SELECT
				om.*,
				wh.warehouse_name,
				u.user_name AS writer_name
			FROM outbound_mng om
			LEFT JOIN warehouse_info wh
				ON wh.warehouse_code = om.warehouse_code
				AND wh.company_code = om.company_code
			LEFT JOIN user_info u
				ON u.user_id = om.writer
				AND u.company_code = om.company_code
			WHERE om.id = $1
				AND ($2::text = '*' OR om.company_code = $2)
		`;
		const result = await pool.query(sql, [id, companyCode]);
		if (result.rowCount === 0) {
			return res
				.status(404)
				.json({ success: false, message: "출고 데이터를 찾을 수 없습니다." });
		}

		return res.json({ success: true, data: { row: result.rows[0] } });
	} catch (error: unknown) {
		const msg = error instanceof Error ? error.message : "조회 실패";
		logger.error("출고 디테일 단건 조회 실패", { error: msg });
		return res.status(500).json({ success: false, message: msg });
	}
}

// ===== history: inventory_history (단건) + warehouse + item_info JOIN =====

export async function getHistoryDetail(
	req: AuthenticatedRequest,
	res: Response,
) {
	try {
		const companyCode = req.user!.companyCode;
		const { id } = req.params;

		const pool = getPool();

		const sql = `
			SELECT
				ih.*,
				wh.warehouse_name,
				ii.item_name AS joined_item_name,
				ii.unit      AS joined_unit
			FROM inventory_history ih
			LEFT JOIN warehouse_info wh
				ON wh.warehouse_code = ih.warehouse_code
				AND wh.company_code = ih.company_code
			LEFT JOIN (
				SELECT DISTINCT ON (item_number, company_code)
					item_number, item_name, unit, company_code
				FROM item_info
				ORDER BY item_number, company_code, created_date DESC
			) ii ON ih.item_code = ii.item_number
				AND ih.company_code = ii.company_code
			WHERE ih.id = $1
				AND ($2::text = '*' OR ih.company_code = $2)
		`;
		const result = await pool.query(sql, [id, companyCode]);
		if (result.rowCount === 0) {
			return res.status(404).json({
				success: false,
				message: "재고이력 데이터를 찾을 수 없습니다.",
			});
		}

		return res.json({ success: true, data: { row: result.rows[0] } });
	} catch (error: unknown) {
		const msg = error instanceof Error ? error.message : "조회 실패";
		logger.error("재고이력 디테일 단건 조회 실패", { error: msg });
		return res.status(500).json({ success: false, message: msg });
	}
}