package api

import (
	"github.com/gin-gonic/gin"
	"log"
	"os"
	"resource-manager/domain/cache"
	"resource-manager/domain/resource"
	"time"
)

func SetupServer() *gin.Engine {
	server := createServer()
	RegisterRoutes(server)
	return server
}

func createServer() *gin.Engine {
	server := gin.New()
	server.NoRoute(NoRoute())
	server.NoMethod(NoMethod())
	server.Use(gin.Recovery())
	return server
}

func RegisterRoutes(server *gin.Engine) {
	cacheManager := cache.NewManager()
	expiration := loadExpiration()

	log.Println("Presign | expiration set to " + expiration.String())

	resourceManager := resource.NewManager(cacheManager, expiration)

	server.POST("/api/v1/upload", HandleUpload(resourceManager))
	server.GET("/api/v1/download", HandleDownload(resourceManager))
	server.GET("/api/v1/presign", HandlePresign(resourceManager))
	server.PUT("/api/v1/copy", HandleCopy(resourceManager))
	server.DELETE("/api/v1/delete", HandleDelete(resourceManager))
}

func loadExpiration() time.Duration {
	if value := os.Getenv("PRESIGN_DURATION"); value != "" {
		duration, err := time.ParseDuration(value)
		if err != nil {
			return duration
		}
	}
	// default duration
	return 1 * time.Hour
}