package main

import (
	"bufio"
	"fmt"
	"github.com/inancgumus/screen"
	"math/rand"
	"os"
	"reflect"
	"runtime"
	"strings"
)

//////////////////////////////////////////////////////////////////////

func clear() {
	screen.Clear()
	screen.MoveTopLeft()
	//fmt.Print("\033[H\033[2J")
}

//////////////////////////////////////////////////////////////////////

func scanLine() (line string) {
	switch runtime.GOOS {
	case "linux":
		in := bufio.NewReader(os.Stdin)
		lineNew, err := in.ReadString('\n')
		catchErr(err)
		line = strings.Trim(lineNew, "\n")

	// I hate Windows
	case "windows":
		in := bufio.NewReader(os.Stdin)
		lineNew, err := in.ReadString('\r')
		catchErr(err)
		line = strings.Trim(lineNew, "\r")
	}
	return line
}

//////////////////////////////////////////////////////////////////////
// Section for checking whether the player has lost or won

func checkWin() {
	var winStatus bool = reflect.DeepEqual(revealedChars, hiddenChars)
	if winStatus == true {
		fmt.Println("You win!")
		os.Exit(0)
	}
}

func checkLose() {
	if player.lives < 0 {
		fmt.Println("You lose!")
		fmt.Printf("The word was %v!\n", revealedChars)
		os.Exit(0)
	}
}

//////////////////////////////////////////////////////////////////////

func fillSecrets() {
	// Filling the array that will contain the unrevealed characters
	for _, v := range randWord {
		if string(v) == " " {
			hiddenChars = append(hiddenChars, " ")
		} else {
			hiddenChars = append(hiddenChars, "_")
		}
	}

	// Filling the array that will contain the revealed characters
	for _, v := range randWord {
		revealedChars = append(revealedChars, string(v))
	}
}

//////////////////////////////////////////////////////////////////////

func alreadyWrong(gs string) (isGuess bool) {
	var isAlreadyGuessed bool = false
	for _, v := range wrongChars {
		if v == gs {
			isAlreadyGuessed = true
		}
	}
	return isAlreadyGuessed
}

// Iterate over correctChars and if the guess from the main game matches any of the elements,
// return True
func alreadyCorrect(gs string) (isGuess bool) {
	var isAlreadyGuessed bool = false
	for _, v := range correctChars {
		if v == gs {
			isAlreadyGuessed = true
		}
	}
	return isAlreadyGuessed
}

//////////////////////////////////////////////////////////////////////

func getWord(path string) (word string) {
	file, err := os.Open(path)
	if err != nil {
		fmt.Println(err)
		os.Exit(2)
	}
	defer file.Close()

	scanner := bufio.NewScanner(file)

	for scanner.Scan() {
		names = append(names, scanner.Text())
	}

	randName := names[rand.Intn(len(names)-0)]
	return randName
}

//////////////////////////////////////////////////////////////////////

func catchErr(err error) (errHappened bool) {
	errHappened = false
	if err != nil {
		//fmt.Println(err)
		errHappened = true
	}
	return errHappened
}

//////////////////////////////////////////////////////////////////////

// TODO: Make gameStatus() prettier
func gameStatus() {
	clear()
	fmt.Printf("Player: %v\n", player.name)
	fmt.Printf("Lives: %v\n\n", player.lives)
	fmt.Printf("Word: %v\n\n", hiddenChars)
	fmt.Printf("Wrong characters: %v\n", wrongChars)
	fmt.Printf("Correct characters: %v\n\n", correctChars)
}

func isEmpty(guess string) (isEmpty bool) {
	isEmpty = false
	if guess == "" {
		isEmpty = true
	}
	return isEmpty
}