package main

import (
	"fmt"
	"io"
	"log"
	"net/http"
	"os"
)

// func getRoot(w http.ResponseWriter, r *http.Request) {
// 	fmt.Printf("Received connection\n")
// 	file, err := os.Open("./index.html")
// 	if err != nil {
// 		log.Printf("Error happened opening index.html: %v\n", err)
// 	}
// 	defer file.Close()
// 	data, err := io.ReadAll(file)
// 	if err != nil {
// 		log.Printf("Error happened reading data: %v\n", err)
// 	}
// 	fmt.Fprint(w, string(data))
// }

func uploadFile(w http.ResponseWriter, r *http.Request) {
	fmt.Fprintln(w, "You have uploaded something")

	file, header, err := r.FormFile("file")

	if err != nil {
		log.Printf("Error happened receiving file: %v\n", err)
	}

	_, err = os.Stat("./temp/")
	if os.IsNotExist(err) {
		os.Mkdir("./temp/", 0700)
	}

	f, err := os.OpenFile("./temp/"+header.Filename, os.O_WRONLY|os.O_CREATE, 0660)
	if err != nil {
		log.Printf("Error happened opening file: %v\n", err)
	}
	log.Printf("[%v] Received file \"%v\" from %v\n", r.RemoteAddr, header.Filename, r.UserAgent())
	io.Copy(f, file)

	defer file.Close()
}

func main() {
	http.Handle("/", http.FileServer(http.Dir("./assets")))
	http.HandleFunc("/api/upload", uploadFile)

	fmt.Println("Listening on port 8080...")

	err := http.ListenAndServe(":8080", nil)
	if err != nil {
		log.Fatal(err)
	}
}