initial commit

server/internal/config/config.go

@@ -0,0 +1,74 @@
+package config
+
+import (
+	"os"
+	"strconv"
+)
+
+// Config 应用配置
+type Config struct {
+	Server   ServerConfig
+	Database DatabaseConfig
+	JWT      JWTConfig
+	CORS     CORSConfig
+}
+
+// ServerConfig 服务器配置
+type ServerConfig struct {
+	Port string
+	Mode string // debug, release, test
+}
+
+// DatabaseConfig 数据库配置
+type DatabaseConfig struct {
+	Path string
+}
+
+// JWTConfig JWT 配置
+type JWTConfig struct {
+	Secret     string
+	ExpireTime int // 过期时间（小时）
+}
+
+// CORSConfig CORS 配置
+type CORSConfig struct {
+	AllowOrigins []string
+}
+
+// Load 从环境变量加载配置
+func Load() *Config {
+	return &Config{
+		Server: ServerConfig{
+			Port: getEnv("SERVER_PORT", "8080"),
+			Mode: getEnv("GIN_MODE", "release"),
+		},
+		Database: DatabaseConfig{
+			Path: getEnv("DB_PATH", "./data/novablog.db"),
+		},
+		JWT: JWTConfig{
+			Secret:     getEnv("JWT_SECRET", "novablog-secret-key-change-in-production"),
+			ExpireTime: getEnvAsInt("JWT_EXPIRE_HOURS", 24*7), // 默认 7 天
+		},
+		CORS: CORSConfig{
+			AllowOrigins: []string{
+				getEnv("CORS_ORIGIN", "http://localhost:4321"),
+			},
+		},
+	}
+}
+
+func getEnv(key, defaultValue string) string {
+	if value := os.Getenv(key); value != "" {
+		return value
+	}
+	return defaultValue
+}
+
+func getEnvAsInt(key string, defaultValue int) int {
+	if value := os.Getenv(key); value != "" {
+		if intValue, err := strconv.Atoi(value); err == nil {
+			return intValue
+		}
+	}
+	return defaultValue
+}