package server

import (
	"net/http"
	"sub2api/internal/config"
	"sub2api/internal/handler"
	"sub2api/internal/repository"
	"sub2api/internal/service"
	"time"

	"github.com/gin-gonic/gin"
	"github.com/google/wire"
)

// ProviderSet 提供服务器层的依赖
var ProviderSet = wire.NewSet(
	ProvideRouter,
	ProvideHTTPServer,
)

// ProvideRouter 提供路由器
func ProvideRouter(cfg *config.Config, handlers *handler.Handlers, services *service.Services, repos *repository.Repositories) *gin.Engine {
	if cfg.Server.Mode == "release" {
		gin.SetMode(gin.ReleaseMode)
	}

	r := gin.New()
	r.Use(gin.Recovery())

	return SetupRouter(r, cfg, handlers, services, repos)
}

// ProvideHTTPServer 提供 HTTP 服务器
func ProvideHTTPServer(cfg *config.Config, router *gin.Engine) *http.Server {
	return &http.Server{
		Addr:    cfg.Server.Address(),
		Handler: router,
		// ReadHeaderTimeout: 读取请求头的超时时间，防止慢速请求头攻击
		ReadHeaderTimeout: time.Duration(cfg.Server.ReadHeaderTimeout) * time.Second,
		// IdleTimeout: 空闲连接超时时间，释放不活跃的连接资源
		IdleTimeout: time.Duration(cfg.Server.IdleTimeout) * time.Second,
		// 注意：不设置 WriteTimeout，因为流式响应可能持续十几分钟
		// 不设置 ReadTimeout，因为大请求体可能需要较长时间读取
	}
}