package com.uas.eis.longcheer.controller;

import com.uas.eis.longcheer.config.LongcheerConfig;
import com.uas.eis.longcheer.dto.LongcheerResponse;
import com.uas.eis.longcheer.entity.PoPushRequest;
import com.uas.eis.longcheer.service.LongcheerService;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.web.bind.annotation.*;

import javax.annotation.Resource;

/**
 * 龙旗接口对接控制器
 *
 * @author ZXL
 * @date 2026-06-26
 */
@RestController
@RequestMapping("/api/longcheer")
public class LongcheerController {

    private static final Logger logger = LoggerFactory.getLogger(LongcheerController.class);

    @Resource
    private LongcheerService longcheerService;

    @Resource
    private LongcheerConfig longcheerConfig;

    /**
     * 接口01：供应商库存同步接口
     * 供应商 → 龙旗（本系统为推送方）
     *
     * @param master 账套标识
     * @param id     库存记录ID
     * @return 统一响应
     */
    @PostMapping("/inventory/push")
    public LongcheerResponse pushInventory(@RequestBody String master, Integer id) {

        try {
            LongcheerResponse response = longcheerService.pushInventory(master, id);
            logger.info("[龙旗接口]库存同步响应，code={}，message={}", response.getCode(), response.getMessage());
            return response;
        } catch (Exception e) {
            logger.error("[龙旗接口]库存同步异常", e);
            return new LongcheerResponse(500, "库存同步失败：" + e.getMessage(), false);
        }
    }

    /**
     * 接口02：供应商采购订单同步接口
     * 龙旗 → 供应商（本系统为接收方）
     * 龙旗通过 x-app-key / x-app-secret 鉴权后推送采购订单数据到本接口
     *
     * @param appKey  请求头 x-app-key
     * @param appSecret 请求头 x-app-secret
     * @param request 龙旗推送的采购订单数据
     * @return 统一响应
     */
    @PostMapping("/po/push")
    public LongcheerResponse receivePo(
            @RequestHeader(value = "x-app-key", required = false) String appKey,
            @RequestHeader(value = "x-app-secret", required = false) String appSecret,
            @RequestBody PoPushRequest request) {

        // 鉴权验证：根据 elsAccount 动态获取配置的 appKey/appSecret
            String configAppKey = longcheerConfig.getPo().getAppKey();
        String configAppSecret = longcheerConfig.getPo().getAppSecret();
        java.util.Map<String, LongcheerConfig.Credential> poCredentials =
                longcheerConfig.getPo().getCredentials();
        if (poCredentials != null && request != null && !isBlank(request.getElsAccount())) {
            LongcheerConfig.Credential cred = poCredentials.get(request.getElsAccount().trim());
            if (cred != null) {
                configAppKey = cred.getAppKey();
                configAppSecret = cred.getAppSecret();
                logger.info("[龙旗接口]采购订单鉴权使用elsAccount={}对应凭证，appKey={}",
                        request.getElsAccount().trim(), configAppKey);
            }
        }
        if (isBlank(appKey) || isBlank(appSecret)
                || !appKey.equals(configAppKey) || !appSecret.equals(configAppSecret)) {
            logger.warn("[龙旗接口]采购订单接收鉴权失败，appKey={}，elsAccount={}", appKey,
                    request == null ? null : request.getElsAccount());
            return new LongcheerResponse(401, "鉴权失败：x-app-key或x-app-secret不正确", false);
        }

        try {
            LongcheerResponse response = longcheerService.receivePo(request);
            logger.info("[龙旗接口]采购订单接收响应，erpOrderNumber={}，code={}，message={}",
                    request == null ? null : request.getErpOrderNumber(), response.getCode(), response.getMessage());
            return response;
        } catch (Exception e) {
            logger.error("[龙旗接口]采购订单接收异常，erpOrderNumber={}",
                    request == null ? null : request.getErpOrderNumber(), e);
            return new LongcheerResponse(500, "采购订单接收失败：" + e.getMessage(), false);
        }
    }

    /**
     * 判断字符串是否为空
     *
     * @param str 字符串
     * @return true 表示为空
     */
    private boolean isBlank(String str) {
        return str == null || str.trim().isEmpty();
    }
}