package valueobjects

// Tests for score calculations, clamping, and attempt logic.

import (
	"testing"

	"github.com/stretchr/testify/require"
)

// TestNewScore_ClampsNegativeToZero ensures new score clamps negative to zero behavior is handled correctly.
func TestNewScore_ClampsNegativeToZero(t *testing.T) {
	score := NewScore(-5)
	require.Equal(t, 0, score.Value())
}

// TestScore_AddClampsBelowZero ensures score add clamps below zero behavior is handled correctly.
func TestScore_AddClampsBelowZero(t *testing.T) {
	score := NewScore(2)
	updated := score.Add(-10)
	require.Equal(t, 0, updated.Value())
}

// TestCalculateQuestionScore ensures calculate question score behavior is handled correctly.
func TestCalculateQuestionScore(t *testing.T) {
	cases := []struct {
		name     string
		correct  bool
		usedHint bool
		expected int
	}{
		{"incorrect", false, false, ScoreIncorrect},
		{"correct_with_hint", true, true, ScoreWithHint},
		{"correct_no_hint", true, false, MaxScorePerQuestion},
	}

	for _, tc := range cases {
		t.Run(tc.name, func(t *testing.T) {
			require.Equal(t, tc.expected, CalculateQuestionScore(tc.correct, tc.usedHint))
		})
	}
}

// TestAttempts ensures attempts behavior is handled correctly.
func TestAttempts(t *testing.T) {
	require.True(t, CanRetry(MaxAttempts-1))
	require.False(t, CanRetry(MaxAttempts))

	require.Equal(t, MaxAttempts-1, RemainingAttempts(1))
	require.Equal(t, 0, RemainingAttempts(MaxAttempts+1))
}