Add server components

server/update/utils/config.go

@@ -0,0 +1,115 @@
+package utils
+
+import (
+	"encoding/json"
+	"os"
+	"path/filepath"
+	"sync"
+)
+
+// ConfigCache 配置缓存
+type ConfigCache struct {
+	mu           sync.RWMutex
+	toolStatus   map[string]interface{}
+	updateInfo   map[string]interface{}
+	mediaTypes   map[string]interface{}
+}
+
+var configCache = &ConfigCache{}
+
+// LoadConfig 加载配置文件
+func LoadConfig(filename string) (map[string]interface{}, error) {
+	filePath := filepath.Join("public", filename)
+	
+	data, err := os.ReadFile(filePath)
+	if err != nil {
+		return nil, err
+	}
+	
+	var config map[string]interface{}
+	if err := json.Unmarshal(data, &config); err != nil {
+		return nil, err
+	}
+	
+	return config, nil
+}
+
+// SaveConfig 保存配置文件并更新缓存
+func SaveConfig(filename string, config map[string]interface{}) error {
+	filePath := filepath.Join("public", filename)
+	
+	// 转换为 JSON
+	jsonData, err := json.MarshalIndent(config, "", "  ")
+	if err != nil {
+		return err
+	}
+	
+	// 保存文件
+	if err := os.WriteFile(filePath, jsonData, 0644); err != nil {
+		return err
+	}
+	
+	// 更新缓存
+	configCache.mu.Lock()
+	defer configCache.mu.Unlock()
+	
+	switch filename {
+	case "tool-status.json":
+		configCache.toolStatus = config
+	case "update-info.json":
+		configCache.updateInfo = config
+	case "media-types.json":
+		configCache.mediaTypes = config
+	}
+	
+	return nil
+}
+
+// GetCachedConfig 获取缓存的配置
+func GetCachedConfig(filename string) (map[string]interface{}, bool) {
+	configCache.mu.RLock()
+	defer configCache.mu.RUnlock()
+	
+	switch filename {
+	case "tool-status.json":
+		if configCache.toolStatus != nil {
+			return configCache.toolStatus, true
+		}
+	case "update-info.json":
+		if configCache.updateInfo != nil {
+			return configCache.updateInfo, true
+		}
+	case "media-types.json":
+		if configCache.mediaTypes != nil {
+			return configCache.mediaTypes, true
+		}
+	}
+	
+	return nil, false
+}
+
+// ReloadConfig 重新加载配置
+func ReloadConfig(filename string) error {
+	config, err := LoadConfig(filename)
+	if err != nil {
+		return err
+	}
+	
+	return SaveConfig(filename, config)
+}
+
+// InitConfigCache 初始化配置缓存
+func InitConfigCache() error {
+	files := []string{"tool-status.json", "update-info.json", "media-types.json"}
+	
+	for _, file := range files {
+		if _, err := os.Stat(filepath.Join("public", file)); err == nil {
+			config, err := LoadConfig(file)
+			if err == nil {
+				SaveConfig(file, config)
+			}
+		}
+	}
+	
+	return nil
+}