package com.mosquito.project.controller;

import org.springframework.http.ResponseEntity;
import org.springframework.web.bind.annotation.*;

import java.util.*;

/**
 * 系统配置控制器
 */
@RestController
@RequestMapping("/api/system")
public class SystemController {

    /**
     * 获取系统配置列表
     */
    @GetMapping("/configs")
    public ResponseEntity<Map<String, Object>> getConfigs(
            @RequestParam(required = false) String category,
            @RequestParam(required = false) String keyword) {

        // TODO: 实现实际的配置查询
        List<Map<String, Object>> configs = new ArrayList<>();

        Map<String, Object> response = new HashMap<>();
        response.put("code", 200);
        response.put("data", configs);
        return ResponseEntity.ok(response);
    }

    /**
     * 获取单个配置
     */
    @GetMapping("/configs/{key}")
    public ResponseEntity<Map<String, Object>> getConfigByKey(@PathVariable String key) {
        Map<String, Object> response = new HashMap<>();
        response.put("code", 200);
        response.put("data", null);
        return ResponseEntity.ok(response);
    }

    /**
     * 更新配置
     */
    @PutMapping("/configs/{key}")
    public ResponseEntity<Map<String, Object>> updateConfig(
            @PathVariable String key,
            @RequestBody Map<String, String> request) {

        Map<String, Object> response = new HashMap<>();
        response.put("code", 200);
        response.put("message", "配置更新成功");
        return ResponseEntity.ok(response);
    }

    /**
     * 批量更新配置
     */
    @PutMapping("/configs/batch")
    public ResponseEntity<Map<String, Object>> batchUpdateConfigs(@RequestBody Map<String, Object> request) {

        Map<String, Object> response = new HashMap<>();
        response.put("code", 200);
        response.put("message", "批量更新成功");
        return ResponseEntity.ok(response);
    }

    /**
     * 重置配置
     */
    @PostMapping("/configs/{key}/reset")
    public ResponseEntity<Map<String, Object>> resetConfig(@PathVariable String key) {

        Map<String, Object> response = new HashMap<>();
        response.put("code", 200);
        response.put("message", "配置重置成功");
        return ResponseEntity.ok(response);
    }

    /**
     * 清除缓存
     */
    @PostMapping("/cache/clear")
    public ResponseEntity<Map<String, Object>> clearCache(
            @RequestParam(required = false) String type) {

        Map<String, Object> response = new HashMap<>();
        response.put("code", 200);
        response.put("message", "缓存清除成功");
        return ResponseEntity.ok(response);
    }

    /**
     * 获取缓存列表
     */
    @GetMapping("/cache/list")
    public ResponseEntity<Map<String, Object>> getCacheList() {
        List<Map<String, Object>> caches = new ArrayList<>();

        Map<String, Object> response = new HashMap<>();
        response.put("code", 200);
        response.put("data", caches);
        return ResponseEntity.ok(response);
    }

    /**
     * 获取系统信息
     */
    @GetMapping("/info")
    public ResponseEntity<Map<String, Object>> getSystemInfo() {
        Map<String, Object> info = new HashMap<>();
        info.put("version", "1.0.0");
        info.put("uptime", System.currentTimeMillis());
        info.put("memory", Map.of("total", Runtime.getRuntime().totalMemory(),
                                   "used", Runtime.getRuntime().totalMemory() - Runtime.getRuntime().freeMemory(),
                                   "free", Runtime.getRuntime().freeMemory()));
        info.put("cpu", Runtime.getRuntime().availableProcessors());
        info.put("threads", Thread.activeCount());

        Map<String, Object> response = new HashMap<>();
        response.put("code", 200);
        response.put("data", info);
        return ResponseEntity.ok(response);
    }
}
