package xuan.controller;

import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.beans.factory.annotation.Value;
import org.springframework.web.bind.annotation.*;
import org.springframework.web.client.RestTemplate;
import org.springframework.web.multipart.MultipartFile;
import xuan.entity.UserInfo;
import xuan.service.UserInfoService;

import java.io.File;
import java.io.IOException;
import java.nio.file.Files;
import java.nio.file.Path;
import java.nio.file.Paths;
import java.util.HashMap;
import java.util.Map;
import java.util.UUID;

@RestController
@RequestMapping("/api/user")
@CrossOrigin(origins = "*")
public class UserController {
    
    @Autowired
    private UserInfoService userInfoService;
    
    @Value("${wechat.appid:}")
    private String appId;
    
    @Value("${wechat.secret:}")
    private String appSecret;
    
    @PostMapping("/login")
    public Map<String, Object> login(@RequestBody Map<String, Object> params) {
        Map<String, Object> result = new HashMap<>();
        try {
            String code = params.get("code") != null ? params.get("code").toString() : null;
            String username = params.get("nickname") != null ? params.get("nickname").toString() : "微信用户";
            String avatarUrl = params.get("avatarUrl") != null ? params.get("avatarUrl").toString() : "";
            
            System.out.println("=== 登录请求 ===");
            System.out.println("code: " + code);
            System.out.println("appId: " + appId);
            System.out.println("appSecret: " + (appSecret != null ? "已配置" : "未配置"));
            
            String openId = null;
            
            if (code != null && !code.isEmpty() && appId != null && !appId.isEmpty() && appSecret != null && !appSecret.isEmpty()) {
                String url = String.format(
                    "https://api.weixin.qq.com/sns/jscode2session?appid=%s&secret=%s&js_code=%s&grant_type=authorization_code",
                    appId, appSecret, code
                );
                
                System.out.println("调用微信API: " + url);
                
                try {
                    RestTemplate restTemplate = new RestTemplate();
                    @SuppressWarnings("unchecked")
                    Map<String, Object> wxResult = restTemplate.getForObject(url, Map.class);
                    
                    System.out.println("微信API返回: " + wxResult);
                    
                    if (wxResult != null && wxResult.containsKey("openid")) {
                        openId = (String) wxResult.get("openid");
                        System.out.println("获取到openId: " + openId);
                    } else if (wxResult != null) {
                        System.err.println("微信API返回错误: " + wxResult.get("errmsg") + ", errcode: " + wxResult.get("errcode"));
                    }
                } catch (Exception e) {
                    System.err.println("调用微信API失败: " + e.getMessage());
                    e.printStackTrace();
                }
            } else {
                System.err.println("登录参数不完整: code=" + code + ", appId=" + appId + ", appSecret=" + (appSecret != null ? "有" : "无"));
            }
            
            if (openId == null || openId.isEmpty()) {
                result.put("success", false);
                result.put("error", "获取用户身份失败，请重试");
                return result;
            }
            
            UserInfo user = userInfoService.loginOrRegister(openId, username, avatarUrl);
            
            System.out.println("登录成功: userId=" + user.getUserId() + ", openId=" + user.getOpenId());
            
            Map<String, Object> data = new HashMap<>();
            data.put("id", user.getId());
            data.put("userId", user.getUserId());
            data.put("openId", user.getOpenId());
            data.put("avatarUrl", user.getAvatarUrl());
            data.put("username", user.getUsername());
            data.put("phone", user.getPhone());
            data.put("vipLevel", user.getVipLevel());
            data.put("coins", user.getCoins());
            data.put("streakDays", user.getStreakDays());
            data.put("createTime", user.getCreateTime());
            
            result.put("success", true);
            result.put("data", data);
        } catch (Exception e) {
            System.err.println("登录异常: " + e.getMessage());
            e.printStackTrace();
            result.put("success", false);
            result.put("error", e.getMessage());
        }
        return result;
    }
    
    @GetMapping("/info")
    public Map<String, Object> getUserInfo(@RequestParam String userId) {
        Map<String, Object> result = new HashMap<>();
        try {
            UserInfo user = userInfoService.getUserInfo(userId);
            if (user != null) {
                Map<String, Object> data = new HashMap<>();
                data.put("id", user.getId());
                data.put("userId", user.getUserId());
                data.put("openId", user.getOpenId());
                data.put("avatarUrl", user.getAvatarUrl());
                data.put("username", user.getUsername());
                data.put("phone", user.getPhone());
                data.put("vipLevel", user.getVipLevel());
                data.put("coins", user.getCoins());
                data.put("streakDays", user.getStreakDays());
                data.put("createTime", user.getCreateTime());
                
                result.put("success", true);
                result.put("data", data);
            } else {
                result.put("success", false);
                result.put("error", "用户不存在");
            }
        } catch (Exception e) {
            result.put("success", false);
            result.put("error", e.getMessage());
        }
        return result;
    }
    
    @PostMapping("/updateVip")
    public Map<String, Object> updateVipLevel(@RequestBody Map<String, Object> params) {
        Map<String, Object> result = new HashMap<>();
        try {
            String userId = params.get("userId").toString();
            Integer vipLevel = Integer.parseInt(params.get("vipLevel").toString());
            
            UserInfo user = userInfoService.updateVipLevel(userId, vipLevel);
            if (user != null) {
                Map<String, Object> data = new HashMap<>();
                data.put("vipLevel", user.getVipLevel());
                result.put("success", true);
                result.put("data", data);
            } else {
                result.put("success", false);
                result.put("error", "用户不存在");
            }
        } catch (Exception e) {
            result.put("success", false);
            result.put("error", e.getMessage());
        }
        return result;
    }
    
    @PostMapping("/updateCoins")
    public Map<String, Object> updateCoins(@RequestBody Map<String, Object> params) {
        Map<String, Object> result = new HashMap<>();
        try {
            String userId = params.get("userId").toString();
            Integer coins = Integer.parseInt(params.get("coins").toString());
            
            UserInfo user = userInfoService.updateCoins(userId, coins);
            if (user != null) {
                Map<String, Object> data = new HashMap<>();
                data.put("coins", user.getCoins());
                result.put("success", true);
                result.put("data", data);
            } else {
                result.put("success", false);
                result.put("error", "用户不存在");
            }
        } catch (Exception e) {
            result.put("success", false);
            result.put("error", e.getMessage());
        }
        return result;
    }
    
    @PostMapping("/updatePhone")
    public Map<String, Object> updatePhone(@RequestBody Map<String, Object> params) {
        Map<String, Object> result = new HashMap<>();
        try {
            String userId = params.get("userId").toString();
            String phone = params.get("phone").toString();
            
            UserInfo user = userInfoService.updatePhone(userId, phone);
            if (user != null) {
                Map<String, Object> data = new HashMap<>();
                data.put("phone", user.getPhone());
                result.put("success", true);
                result.put("data", data);
            } else {
                result.put("success", false);
                result.put("error", "用户不存在");
            }
        } catch (Exception e) {
            result.put("success", false);
            result.put("error", e.getMessage());
        }
        return result;
    }
    
    @PostMapping("/updateUsername")
    public Map<String, Object> updateUsername(@RequestBody Map<String, Object> params) {
        Map<String, Object> result = new HashMap<>();
        try {
            String userId = params.get("userId").toString();
            String username = params.get("username").toString();
            
            UserInfo user = userInfoService.updateUsername(userId, username);
            if (user != null) {
                Map<String, Object> data = new HashMap<>();
                data.put("username", user.getUsername());
                result.put("success", true);
                result.put("data", data);
            } else {
                result.put("success", false);
                result.put("error", "用户不存在");
            }
        } catch (Exception e) {
            result.put("success", false);
            result.put("error", e.getMessage());
        }
        return result;
    }
    
    @PostMapping("/updateAvatar")
    public Map<String, Object> updateAvatar(@RequestBody Map<String, Object> params) {
        Map<String, Object> result = new HashMap<>();
        try {
            String userId = params.get("userId").toString();
            String avatarUrl = params.get("avatarUrl").toString();
            
            UserInfo user = userInfoService.updateAvatarUrl(userId, avatarUrl);
            if (user != null) {
                Map<String, Object> data = new HashMap<>();
                data.put("avatarUrl", user.getAvatarUrl());
                result.put("success", true);
                result.put("data", data);
            } else {
                result.put("success", false);
                result.put("error", "用户不存在");
            }
        } catch (Exception e) {
            result.put("success", false);
            result.put("error", e.getMessage());
        }
        return result;
    }
    
    @PostMapping("/permissionLog")
    public Map<String, Object> addPermissionLog(@RequestBody Map<String, Object> params) {
        Map<String, Object> result = new HashMap<>();
        try {
            result.put("success", true);
            result.put("message", "权限使用记录已保存");
        } catch (Exception e) {
            result.put("success", false);
            result.put("error", e.getMessage());
        }
        return result;
    }
    
    @PostMapping("/deleteAccount")
    public Map<String, Object> deleteAccount(@RequestBody Map<String, Object> params) {
        Map<String, Object> result = new HashMap<>();
        try {
            String userId = params.get("userId").toString();
            
            boolean deleted = userInfoService.deleteAccount(userId);
            if (deleted) {
                result.put("success", true);
                result.put("message", "账号已注销");
            } else {
                result.put("success", false);
                result.put("error", "用户不存在");
            }
        } catch (Exception e) {
            result.put("success", false);
            result.put("error", e.getMessage());
        }
        return result;
    }
    
    @PostMapping("/consumeCoins")
    public Map<String, Object> consumeCoins(@RequestBody Map<String, Object> params) {
        Map<String, Object> result = new HashMap<>();
        try {
            String userId = params.get("userId").toString();
            Integer amount = params.get("amount") != null ? Integer.parseInt(params.get("amount").toString()) : 1;
            String type = params.get("type") != null ? params.get("type").toString() : "unknown";
            String description = params.get("description") != null ? params.get("description").toString() : "金币消耗";
            String relatedId = params.get("relatedId") != null ? params.get("relatedId").toString() : null;
            
            UserInfo user = userInfoService.consumeCoins(userId, amount, type, description, relatedId);
            if (user != null) {
                Map<String, Object> data = new HashMap<>();
                data.put("coins", user.getCoins());
                result.put("success", true);
                result.put("data", data);
            } else {
                result.put("success", false);
                result.put("error", "用户不存在或金币不足");
            }
        } catch (Exception e) {
            result.put("success", false);
            result.put("error", e.getMessage());
        }
        return result;
    }
    
    @PostMapping("/addCoins")
    public Map<String, Object> addCoins(@RequestBody Map<String, Object> params) {
        Map<String, Object> result = new HashMap<>();
        try {
            String userId = params.get("userId").toString();
            Integer amount = params.get("amount") != null ? Integer.parseInt(params.get("amount").toString()) : 1;
            String type = params.get("type") != null ? params.get("type").toString() : "unknown";
            String description = params.get("description") != null ? params.get("description").toString() : "金币奖励";
            
            UserInfo user = userInfoService.addCoins(userId, amount, type, description);
            if (user != null) {
                Map<String, Object> data = new HashMap<>();
                data.put("coins", user.getCoins());
                result.put("success", true);
                result.put("data", data);
            } else {
                result.put("success", false);
                result.put("error", "用户不存在");
            }
        } catch (Exception e) {
            result.put("success", false);
            result.put("error", e.getMessage());
        }
        return result;
    }
    
    @PostMapping("/uploadAvatar")
    public Map<String, Object> uploadAvatar(
            @RequestParam("file") MultipartFile file,
            @RequestParam(value = "userId", required = false) String userId,
            @RequestParam(value = "temp", required = false) String temp) {
        Map<String, Object> result = new HashMap<>();
        try {
            if (file.isEmpty()) {
                result.put("success", false);
                result.put("error", "请选择文件");
                return result;
            }
            
            String uploadDir = "uploads/avatars/";
            File dir = new File(uploadDir);
            if (!dir.exists()) {
                dir.mkdirs();
            }
            
            String originalFilename = file.getOriginalFilename();
            String extension = ".jpg";
            if (originalFilename != null && originalFilename.contains(".")) {
                extension = originalFilename.substring(originalFilename.lastIndexOf("."));
            }
            
            String filename = UUID.randomUUID().toString() + extension;
            Path filePath = Paths.get(uploadDir + filename);
            Files.write(filePath, file.getBytes());
            
            String avatarUrl = "/uploads/avatars/" + filename;
            
            if (userId != null && !userId.isEmpty() && !"true".equals(temp)) {
                UserInfo user = userInfoService.updateAvatarUrl(userId, avatarUrl);
                if (user == null) {
                    result.put("success", false);
                    result.put("error", "用户不存在");
                    return result;
                }
            }
            
            Map<String, Object> data = new HashMap<>();
            data.put("avatarUrl", avatarUrl);
            result.put("success", true);
            result.put("data", data);
        } catch (IOException e) {
            result.put("success", false);
            result.put("error", "文件上传失败: " + e.getMessage());
        } catch (Exception e) {
            result.put("success", false);
            result.put("error", e.getMessage());
        }
        return result;
    }
}