import org.junit.Test;
import p20230510_TestConsoleIO.GuessTheNumber;
import p20230510_TestConsoleIO.library.MockRandomSingleValue;
import p20230510_TestConsoleIO.library.SystemInputOutputTester;

import java.io.IOException;

public class GuessTheNumberTest {

    @Test
    public void testHighsAndLowsTo33() throws IOException {

        final var systemNumberWeAreTryingToGuess = 33;

        try (final var mockRandomNumberGenerator = new MockRandomSingleValue(systemNumberWeAreTryingToGuess)) {
            SystemInputOutputTester
                    .whenCallingThisMethod(() -> {
                        GuessTheNumber.main(null);
                    })
                    .assertTextOutput("Welcome to the number guessing program.")
                    //
                    .assertTextOutput("I am thinking of a number in the range of 1 to 100, inclusive.")
                    .assertTextOutput("You need to guess this number, with a minimum number of guesses.")
                    .assertTextOutput("Each time you guess, I will tell you if my number is HIGHER or LOWER than your guess.")
                    //
                    .assertTextOutput("What is your guess?")
                    .provideLineInput("50")
                    .assertTextOutput("Your guess of 50 is TOO HIGH.")
                    //
                    .assertTextOutput("What is your guess?")
                    .provideLineInput("25")
                    .assertTextOutput("Your guess of 25 is TOO LOW.")
                    //
                    .assertTextOutput("What is your guess?")
                    .provideLineInput("37")
                    .assertTextOutput("Your guess of 37 is TOO HIGH.")
                    //
                    .assertTextOutput("What is your guess?")
                    .provideLineInput("31")
                    .assertTextOutput("Your guess of 31 is TOO LOW.")
                    //
                    .assertTextOutput("What is your guess?")
                    .provideLineInput("34")
                    .assertTextOutput("Your guess of 34 is TOO HIGH.")
                    //
                    .assertTextOutput("What is your guess?")
                    .provideLineInput("32")
                    .assertTextOutput("Your guess of 32 is TOO LOW.")
                    //
                    .assertTextOutput("What is your guess?")
                    .provideLineInput("33")
                    .assertTextOutput("Your guess of 33 is CORRECT in 7 guesses!")
                    //
                    .assertThatTheMethodReturnsHere();
        }
    }

    @Test
    public void testMaximumGuesses() throws IOException {

        final var systemNumberWeAreTryingToGuess = 100;

        try (final var mockRandomNumberGenerator = new MockRandomSingleValue(systemNumberWeAreTryingToGuess)) {
            SystemInputOutputTester
                    .whenCallingThisMethod(() -> {
                        GuessTheNumber.main(null);
                    })
                    .assertTextOutput("Welcome to the number guessing program.")
                    //
                    .assertTextOutput("I am thinking of a number in the range of 1 to 100, inclusive.")
                    .assertTextOutput("You need to guess this number, with a minimum number of guesses.")
                    .assertTextOutput("Each time you guess, I will tell you if my number is HIGHER or LOWER than your guess.")
                    //
                    .assertTextOutput("What is your guess?")
                    .provideLineInput("50")
                    .assertTextOutput("Your guess of 50 is TOO LOW.")
                    //
                    .assertTextOutput("What is your guess?")
                    .provideLineInput("75")
                    .assertTextOutput("Your guess of 75 is TOO LOW.")
                    //
                    .assertTextOutput("What is your guess?")
                    .provideLineInput("88")
                    .assertTextOutput("Your guess of 88 is TOO LOW.")
                    //
                    .assertTextOutput("What is your guess?")
                    .provideLineInput("94")
                    .assertTextOutput("Your guess of 94 is TOO LOW.")
                    //
                    .assertTextOutput("What is your guess?")
                    .provideLineInput("97")
                    .assertTextOutput("Your guess of 97 is TOO LOW.")
                    //
                    .assertTextOutput("What is your guess?")
                    .provideLineInput("99")
                    .assertTextOutput("Your guess of 99 is TOO LOW.")
                    //
                    .assertTextOutput("What is your guess?")
                    .provideLineInput("100")
                    .assertTextOutput("Your guess of 100 is CORRECT in 7 guesses!")
                    //
                    .assertThatTheMethodReturnsHere();
        }
    }

    @Test
    public void testFirstGuessIsCorrect() throws IOException {

        final var systemNumberWeAreTryingToGuess = 24;

        try (final var mockRandomNumberGenerator = new MockRandomSingleValue(systemNumberWeAreTryingToGuess)) {
            SystemInputOutputTester
                    .whenCallingThisMethod(() -> {
                        GuessTheNumber.main(null);
                    })
                    .assertTextOutput("Welcome to the number guessing program.")
                    //
                    .assertTextOutput("I am thinking of a number in the range of 1 to 100, inclusive.")
                    .assertTextOutput("You need to guess this number, with a minimum number of guesses.")
                    .assertTextOutput("Each time you guess, I will tell you if my number is HIGHER or LOWER than your guess.")
                    //
                    .assertTextOutput("What is your guess?")
                    .provideLineInput("24")
                    .assertTextOutput("Your guess of 24 is CORRECT in one guess!!!")
                    //
                    .assertThatTheMethodReturnsHere();
        }
    }

    @Test
    public void testSecondGuessIsCorrect() throws IOException {

        final var systemNumberWeAreTryingToGuess = 33;

        try (final var mockRandomNumberGenerator = new MockRandomSingleValue(systemNumberWeAreTryingToGuess)) {
            SystemInputOutputTester
                    .whenCallingThisMethod(() -> {
                        GuessTheNumber.main(null);
                    })
                    .assertTextOutput("Welcome to the number guessing program.")
                    //
                    .assertTextOutput("I am thinking of a number in the range of 1 to 100, inclusive.")
                    .assertTextOutput("You need to guess this number, with a minimum number of guesses.")
                    .assertTextOutput("Each time you guess, I will tell you if my number is HIGHER or LOWER than your guess.")
                    //
                    .assertTextOutput("What is your guess?")
                    .provideLineInput("86")
                    .assertTextOutput("Your guess of 86 is TOO HIGH.")
                    //
                    .assertTextOutput("What is your guess?")
                    .provideLineInput("33")
                    .assertTextOutput("Your guess of 33 is CORRECT in 2 guesses!")
                    //
                    .assertThatTheMethodReturnsHere();
        }
    }

}