package main

import (
	"bufio"
	"fmt"
	"log"
	"os"
	"os/exec"
)

func input(s string) (string, error) {
	stdin_buf := bufio.NewReader(os.Stdin)

	fmt.Print(s)

	text, err := stdin_buf.ReadString('\n')
	if err != nil {
		panic(err)
	}
	return text[:len(text)-1], err
}

func searchRepo() {
	var programName, _ = input("Name of search: ")
	cmd := exec.Command("flatpak", "search", programName)
	out, err := cmd.CombinedOutput()
	if err != nil {
		log.Fatalf("cmd.Run() failed with %s\n", err)
	}
	fmt.Print("\n", "Results for ", programName, ": \n\n", string(out), "\n")
}

func installPak() {
	var programName, _ = input("Install: ")
	cmd := exec.Command("flatpak", "install", "flathub", programName)
	out, err := cmd.CombinedOutput()
	if err != nil {
		log.Fatalf("cmd.Run() failed with %s\n", err)
	}
	fmt.Print("\n", "Results for ", programName, ": \n\n", string(out), "\n")
}

func removePak() {
	var programName, _ = input("Uninstall: ")
	cmd := exec.Command("flatpak", "uninstall", programName)
	out, err := cmd.CombinedOutput()
	if err != nil {
		log.Fatalf("cmd.Run() failed with %s\n", err)
	}
	fmt.Print("\n", "Results for ", programName, ": \n\n", string(out), "\n\n")
}

func listPak() {
	cmd := exec.Command("flatpak", "list")
	out, err := cmd.CombinedOutput()
	if err != nil {
		log.Fatalf("cmd.Run() failed with %s\n", err)
	}
	fmt.Print("\n", "Results for ", ": \n\n", string(out), "\n\n")
}

//// TODO
/*
func optionsMenu() {
	var choice string
	print("\n| FlatFace Options |\n\n")
	print("\n1. Add Repository\n\n")

	choice, _ = input(">> ")

	if choice == "1" {

	}
}
*/
func updatePak() {
	cmd := exec.Command("flatpak", "update", "--appstream")
	out, err := cmd.CombinedOutput()
	if err != nil {
		log.Fatalf("cmd.Run() failed with %s\n", err)
	}
	fmt.Print(string(out))
}

func checkRepo() {
	print("\nSyncing repos...\n")
	cmd := exec.Command("flatpak", "remote-add", "--if-not-exists", "flathub", "https://flathub.org/repo/flathub.flatpakrepo")
	out, err := cmd.CombinedOutput()
	updatePak()
	if err != nil {
		log.Fatalf("cmd.Run() failed with %s\n", err)
	}
	fmt.Print(string(out))
}
func mainMenu() {
	print("\n\n| FlatFace v0.0.1a |\n\n")
	var choice string
	print("1. Search remote for flatpaks\n")
	print("2. Install flatpaks from remote\n")
	print("3. Uninstall local flatpaks\n")
	print("4. List install flatpaks\n")
	print("5. Update\n")
	print("q. Quit\n\n")

	choice, _ = input(">> ")

	if choice == "1" {
		searchRepo()

	} else if choice == "2" {
		installPak()
	} else if choice == "3" {
		removePak()
	} else if choice == "4" {
		listPak()
	} else if choice == "5" {
		updatePak()
	} else if choice == "q" {
		os.Exit(1)
	} else {
		print("Unknown option")
	}

}

func main() {
	checkRepo()
	for {
		mainMenu()
	}
}