feat: add fullstack deployment and oracle app

server/internal/config/config.go

@@ -0,0 +1,91 @@
+package config
+
+import (
+	"os"
+	"strconv"
+	"strings"
+	"time"
+)
+
+// Config 定义服务运行配置。
+// AI 调用统一走 OpenAI 兼容协议，上游地址和鉴权由环境变量提供。
+type Config struct {
+	Port           string
+	ProviderName   string
+	AIBaseURL      string
+	AIChatPath     string
+	AIAPIKey       string
+	AIModel        string
+	AITimeout      time.Duration
+	AllowedOrigins []string
+}
+
+// Load 从环境变量装载运行配置。
+// 未提供的字段使用保守默认值，确保本地开发可以直接启动服务。
+func Load() Config {
+	return Config{
+		Port:           getenv("SERVER_PORT", "8080"),
+		ProviderName:   getenv("AI_PROVIDER_NAME", "OpenAI Compatible"),
+		AIBaseURL:      strings.TrimRight(getenv("AI_BASE_URL", "https://api.openai.com"), "/"),
+		AIChatPath:     normalizePath(getenv("AI_CHAT_PATH", "/v1/chat/completions")),
+		AIAPIKey:       strings.TrimSpace(os.Getenv("AI_API_KEY")),
+		AIModel:        strings.TrimSpace(os.Getenv("AI_MODEL")),
+		AITimeout:      time.Duration(getenvInt("AI_TIMEOUT_SECONDS", 60)) * time.Second,
+		AllowedOrigins: splitOrigins(getenv("WEB_ALLOWED_ORIGINS", "http://127.0.0.1:5173,http://localhost:5173")),
+	}
+}
+
+// AIEnabled 判断 AI 服务是否已具备调用条件。
+func (c Config) AIEnabled() bool {
+	return c.AIAPIKey != "" && c.AIModel != "" && c.AIBaseURL != ""
+}
+
+func getenv(key string, fallback string) string {
+	value := strings.TrimSpace(os.Getenv(key))
+	if value == "" {
+		return fallback
+	}
+	return value
+}
+
+func getenvInt(key string, fallback int) int {
+	value := strings.TrimSpace(os.Getenv(key))
+	if value == "" {
+		return fallback
+	}
+
+	parsed, err := strconv.Atoi(value)
+	if err != nil || parsed <= 0 {
+		return fallback
+	}
+
+	return parsed
+}
+
+func normalizePath(path string) string {
+	if path == "" {
+		return "/v1/chat/completions"
+	}
+	if strings.HasPrefix(path, "/") {
+		return path
+	}
+	return "/" + path
+}
+
+func splitOrigins(raw string) []string {
+	parts := strings.Split(raw, ",")
+	origins := make([]string, 0, len(parts))
+
+	for _, part := range parts {
+		origin := strings.TrimSpace(part)
+		if origin != "" {
+			origins = append(origins, origin)
+		}
+	}
+
+	if len(origins) == 0 {
+		return []string{"http://127.0.0.1:5173", "http://localhost:5173"}
+	}
+
+	return origins
+}