package main

import (
	"bufio"
	"fmt"
	"os"
)

func main() {

	game := NewGame()

	err := game.getWordsFromStdin()
	if err != nil {
		fmt.Printf("Error getting Words from stdin: %s\n", err)
		os.Exit(1)
	}

	err = game.scoreWordsByCommonLetterLocations()
	if err != nil {
		fmt.Printf("Error scoring Words: %s\n", err)
		os.Exit(1)
	}

	_, err = game.printSortedScores()
	if err != nil {
		fmt.Printf("Error printing sorted scores: %s\n", err)
		os.Exit(1)
	}

	for i := 0; i < 3; i++ {
		guess, score := getGuessAndScoreFromStdin()
		fmt.Printf("Guess: %s, Score: %d\n", guess, score)

		game.FilterWords(guess, score)

		err = game.scoreWordsByCommonLetterLocations()
		if err != nil {
			fmt.Printf("Error scoring Words: %s\n", err)
			os.Exit(1)
		}

		_, err = game.printSortedScores()
		if err != nil {
			fmt.Printf("Error printing sorted scores: %s\n", err)
			os.Exit(1)
		}

		if len(game.Words) == 1 {
			for word := range game.Words {
				fmt.Printf("The word is: %s\n", word)
				os.Exit(0)
			}
		}
	}
}

func getGuessAndScoreFromStdin() (string, int) {
	reader := bufio.NewReader(os.Stdin)
	fmt.Print("Enter Guess: ")
	guess, _ := reader.ReadString('\n')
	guess = guess[:len(guess)-1]

	fmt.Print("Enter Score: ")
	var score int
	_, err := fmt.Scanf("%d", &score)
	if err != nil {
		fmt.Printf("Error reading score: %s\n", err)
		os.Exit(1)
	}

	return guess, score
}