package com.onekeycall.videotablet.controller;

import com.onekeycall.videotablet.entity.DeviceInfo;
import com.onekeycall.videotablet.entity.User;
import com.onekeycall.videotablet.result.Result;
import com.onekeycall.videotablet.service.DeviceSnService;
import com.onekeycall.videotablet.service.UserService;
import com.onekeycall.videotablet.utils.CXAESUtil;
import com.onekeycall.videotablet.utils.JwtUtil;
import com.onekeycall.videotablet.utils.PushUtils;
import com.onekeycall.videotablet.utils.TextUtils;
import org.apache.commons.lang3.RandomStringUtils;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.web.bind.annotation.*;

import java.util.Date;
import java.util.HashMap;
import java.util.Map;

@RestController
@RequestMapping("/public")
public class ManageSnController {
    Logger logger = LoggerFactory.getLogger(ManageSnController.class);

    @Autowired
    private JwtUtil jwtUtil;
    @Autowired
    private UserService userService;
    @Autowired
    private DeviceSnService deviceSnService;

    @PostMapping("/add_sn")
    public Result addSn(
            @RequestHeader("Authorization") String authHeader, @RequestHeader("Device-ID") String deviceId,
            @RequestParam(value = "user_id") String userId, @RequestParam(value = "sn") String sn) {
        // 1. 校验 Authorization 头
        if (!authHeader.startsWith("Bearer ")) {
            return Result.error().message("Invalid Authorization header");
        }
        String token = authHeader.substring(7); // 去掉 "Bearer " 前缀

        // 2. 校验 Token
        if (!jwtUtil.validateAccessToken(userId, token, deviceId)) {
            return Result.error().message("Invalid token");
        }

        // 3. 校验 sn 是否存在
        DeviceInfo oldDeviceInfo = deviceSnService.findBySn(sn);
        if (oldDeviceInfo != null) {
            return Result.error().message("sn already exists");
        }

        // 4. 新增 sn
        DeviceInfo deviceInfo = new DeviceInfo();
        deviceInfo.setSn(sn);
        deviceInfo.setAddTime(new Date());
        deviceInfo.setDeviceModel(deviceId);
        deviceSnService.save(deviceInfo);

        return Result.ok();
    }

    @GetMapping("/decode_sn")
    public Result decodeSn(
            @RequestHeader("Authorization") String authHeader, @RequestHeader("Device-ID") String deviceId,
            @RequestParam(value = "user_id") String userId, @RequestParam(value = "encrypt_sn") String encryptSn) throws Exception {

        logger.info("Authorization = {}, Device-ID = {}, user_id = {}, encrypt_sn = {}", authHeader, deviceId, userId, encryptSn);
        // 1. 校验 Authorization 头
        if (!authHeader.startsWith("Bearer ")) {
            return Result.error().message("Invalid Authorization header");
        }
        String token = authHeader.substring(7); // 去掉 "Bearer " 前缀

        // 2. 校验 Token
        if (!jwtUtil.validateAccessToken(userId, token, deviceId)) {
            return Result.error().message("Invalid token");
        }

        // 3. 解密 sn
        String sn = CXAESUtil.decrypt(CXAESUtil.key, encryptSn);
        logger.info("sn = {}", sn);
        if (TextUtils.isEmpty(sn)) {
            return Result.error().message("sn decrypt failed");
        }

        DeviceInfo deviceInfo = deviceSnService.findBySn(sn);
        if (deviceInfo == null) {
            return Result.error().message("sn not found");
        }
        if (!TextUtils.isEmpty(deviceInfo.getBindPhone())) {
            return Result.ok().message("sn already bind");
        }
        Map<String, Object> map = new HashMap<>();
        map.put("sn", sn);

        return Result.ok().data(map);
    }
}