package com.ruoyi.security.controller;

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

import org.springframework.security.access.prepost.PreAuthorize;
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.PostMapping;
import org.springframework.web.bind.annotation.RequestBody;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestParam;
import org.springframework.web.bind.annotation.RestController;

import com.ruoyi.common.annotation.Log;
import com.ruoyi.common.core.controller.BaseController;
import com.ruoyi.common.core.domain.AjaxResult;
import com.ruoyi.common.enums.BusinessType;

/**
 * 安全管理API控制器
 * 
 * 提供用户认证、MFA令牌、数据加密解密等RESTful API接口
 * 
 * @author ruoyi
 * @date 2025-12-19
 */
@RestController
@RequestMapping("/api/security")
public class SecurityController extends BaseController
{
    // 注意：这里需要注入实际的安全服务，暂时用注释表示
    // @Autowired
    // private ISecurityService securityService;

    /**
     * 用户认证
     * 
     * @param credentials 认证凭据
     * @return 认证结果
     */
    @Log(title = "用户认证", businessType = BusinessType.OTHER)
    @PostMapping("/authenticate")
    public AjaxResult authenticateUser(@RequestBody Map<String, Object> credentials)
    {
        try {
            // 这里需要实现实际的用户认证逻辑
            // Map<String, Object> authResult = securityService.authenticateUser(credentials);
            Map<String, Object> authResult = new HashMap<>();
            authResult.put("authenticated", true);
            authResult.put("token", "jwt_token_" + System.currentTimeMillis());
            authResult.put("expiresIn", 3600); // 临时模拟
            return AjaxResult.success("用户认证成功", authResult);
        } catch (Exception e) {
            logger.error("用户认证失败", e);
            return error("用户认证失败: " + e.getMessage());
        }
    }

    /**
     * 生成MFA令牌
     * 
     * @param userId 用户ID
     * @param mfaType MFA类型 (SMS/EMAIL/TOTP)
     * @return 生成结果
     */
    @PreAuthorize("@ss.hasPermi('security:mfa:generate')")
    @Log(title = "MFA令牌", businessType = BusinessType.INSERT)
    @PostMapping("/mfa/generate")
    public AjaxResult generateMFAToken(
            @RequestParam("userId") Long userId,
            @RequestParam("mfaType") String mfaType)
    {
        try {
            // 这里需要实现实际的MFA令牌生成逻辑
            // String token = securityService.generateMFAToken(userId, mfaType);
            String token = "MFA" + System.currentTimeMillis(); // 临时模拟
            return AjaxResult.success("MFA令牌生成成功", token);
        } catch (Exception e) {
            logger.error("生成MFA令牌失败", e);
            return error("生成MFA令牌失败: " + e.getMessage());
        }
    }

    /**
     * 验证MFA令牌
     * 
     * @param userId 用户ID
     * @param token 令牌
     * @return 验证结果
     */
    @PreAuthorize("@ss.hasPermi('security:mfa:validate')")
    @PostMapping("/mfa/validate")
    public AjaxResult validateMFAToken(
            @RequestParam("userId") Long userId,
            @RequestParam("token") String token)
    {
        try {
            // 这里需要实现实际的MFA令牌验证逻辑
            // boolean isValid = securityService.validateMFAToken(userId, token);
            boolean isValid = true; // 临时模拟
            return AjaxResult.success("MFA令牌验证完成", isValid);
        } catch (Exception e) {
            logger.error("验证MFA令牌失败", e);
            return error("验证MFA令牌失败: " + e.getMessage());
        }
    }

    /**
     * 查询审计日志
     * 
     * @param userId 用户ID (可选)
     * @param operation 操作类型 (可选)
     * @param startDate 开始日期 (可选)
     * @param endDate 结束日期 (可选)
     * @return 审计日志
     */
    @PreAuthorize("@ss.hasPermi('security:audit:query')")
    @GetMapping("/audit-logs")
    public AjaxResult getAuditLogs(
            @RequestParam(value = "userId", required = false) Long userId,
            @RequestParam(value = "operation", required = false) String operation,
            @RequestParam(value = "startDate", required = false) String startDate,
            @RequestParam(value = "endDate", required = false) String endDate)
    {
        try {
            // 这里需要实现实际的审计日志查询逻辑
            // List<Map<String, Object>> auditLogs = securityService.getAuditLogs(userId, operation, startDate, endDate);
            return AjaxResult.success("审计日志", null); // 临时模拟
        } catch (Exception e) {
            logger.error("查询审计日志失败", e);
            return error("查询审计日志失败: " + e.getMessage());
        }
    }

    /**
     * 数据加密
     * 
     * @param data 要加密的数据
     * @param keyId 密钥ID
     * @return 加密结果
     */
    @PreAuthorize("@ss.hasPermi('security:encrypt:add')")
    @Log(title = "数据加密", businessType = BusinessType.OTHER)
    @PostMapping("/encrypt")
    public AjaxResult encryptData(
            @RequestParam("data") String data,
            @RequestParam(value = "keyId", required = false) String keyId)
    {
        try {
            // 这里需要实现实际的数据加密逻辑
            // String encryptedData = securityService.encryptData(data, keyId);
            String encryptedData = "ENCRYPTED_" + data; // 临时模拟
            return AjaxResult.success("数据加密成功", encryptedData);
        } catch (Exception e) {
            logger.error("数据加密失败", e);
            return error("数据加密失败: " + e.getMessage());
        }
    }

    /**
     * 数据解密
     * 
     * @param encryptedData 加密数据
     * @param keyId 密钥ID
     * @return 解密结果
     */
    @PreAuthorize("@ss.hasPermi('security:decrypt:query')")
    @PostMapping("/decrypt")
    public AjaxResult decryptData(
            @RequestParam("encryptedData") String encryptedData,
            @RequestParam(value = "keyId", required = false) String keyId)
    {
        try {
            // 这里需要实现实际的数据解密逻辑
            // String decryptedData = securityService.decryptData(encryptedData, keyId);
            String decryptedData = encryptedData.replace("ENCRYPTED_", ""); // 临时模拟
            return AjaxResult.success("数据解密成功", decryptedData);
        } catch (Exception e) {
            logger.error("数据解密失败", e);
            return error("数据解密失败: " + e.getMessage());
        }
    }

    /**
     * 获取安全事件统计
     * 
     * @param timeRange 时间范围
     * @return 安全事件统计
     */
    @PreAuthorize("@ss.hasPermi('security:event:query')")
    @GetMapping("/events/statistics")
    public AjaxResult getSecurityEventStatistics(@RequestParam(value = "timeRange", defaultValue = "7d") String timeRange)
    {
        try {
            // 这里需要实现实际的安全事件统计逻辑
            // Map<String, Object> statistics = securityService.getSecurityEventStatistics(timeRange);
            Map<String, Object> statistics = new HashMap<>();
            statistics.put("totalEvents", 156);
            statistics.put("criticalEvents", 3);
            statistics.put("warningEvents", 25);
            statistics.put("infoEvents", 128); // 临时模拟
            return AjaxResult.success("安全事件统计", statistics);
        } catch (Exception e) {
            logger.error("获取安全事件统计失败", e);
            return error("获取安全事件统计失败: " + e.getMessage());
        }
    }

    /**
     * 威胁检测
     * 
     * @param eventData 事件数据
     * @return 检测结果
     */
    @PreAuthorize("@ss.hasPermi('security:threat:detect')")
    @Log(title = "威胁检测", businessType = BusinessType.OTHER)
    @PostMapping("/threat/detect")
    public AjaxResult detectThreat(@RequestBody Map<String, Object> eventData)
    {
        try {
            // 这里需要实现实际的威胁检测逻辑
            // Map<String, Object> threatResult = securityService.detectThreat(eventData);
            Map<String, Object> threatResult = new HashMap<>();
            threatResult.put("threatDetected", false);
            threatResult.put("riskLevel", "低");
            threatResult.put("confidence", 0.85); // 临时模拟
            return AjaxResult.success("威胁检测完成", threatResult);
        } catch (Exception e) {
            logger.error("威胁检测失败", e);
            return error("威胁检测失败: " + e.getMessage());
        }
    }

    /**
     * 获取用户权限信息
     * 
     * @param userId 用户ID
     * @return 权限信息
     */
    @PreAuthorize("@ss.hasPermi('security:permission:query')")
    @GetMapping("/permissions")
    public AjaxResult getUserPermissions(@RequestParam("userId") Long userId)
    {
        try {
            // 这里需要实现实际的权限查询逻辑
            // Map<String, Object> permissions = securityService.getUserPermissions(userId);
            return AjaxResult.success("用户权限信息", null); // 临时模拟
        } catch (Exception e) {
            logger.error("获取用户权限信息失败", e);
            return error("获取用户权限信息失败: " + e.getMessage());
        }
    }

    /**
     * 数据脱敏
     * 
     * @param data 原始数据
     * @param maskLevel 脱敏级别
     * @return 脱敏结果
     */
    @PreAuthorize("@ss.hasPermi('security:mask:query')")
    @PostMapping("/mask")
    public AjaxResult maskSensitiveData(
            @RequestParam("data") String data,
            @RequestParam(value = "maskLevel", defaultValue = "MEDIUM") String maskLevel)
    {
        try {
            // 这里需要实现实际的数据脱敏逻辑
            // String maskedData = securityService.maskSensitiveData(data, maskLevel);
            String maskedData = data.replaceAll("\\d{4}", "****"); // 临时模拟
            return AjaxResult.success("数据脱敏成功", maskedData);
        } catch (Exception e) {
            logger.error("数据脱敏失败", e);
            return error("数据脱敏失败: " + e.getMessage());
        }
    }
}