package dice

import "testing"

func TestNormalizeConfigDefaultsRobotUserWinRatePercent(t *testing.T) {
	config, err := NormalizeConfig(Config{})
	if err != nil {
		t.Fatalf("NormalizeConfig failed: %v", err)
	}
	if config.RobotUserWinRatePercent != DefaultRobotUserWinRatePercent || !config.RobotUserWinRatePercentSet {
		t.Fatalf("robot win rate default mismatch: rate=%d set=%v", config.RobotUserWinRatePercent, config.RobotUserWinRatePercentSet)
	}
}

func TestNormalizeConfigKeepsExplicitRobotUserWinRatePercentZero(t *testing.T) {
	config, err := NormalizeConfig(Config{RobotUserWinRatePercent: 0, RobotUserWinRatePercentSet: true})
	if err != nil {
		t.Fatalf("NormalizeConfig failed: %v", err)
	}
	if config.RobotUserWinRatePercent != 0 {
		t.Fatalf("explicit zero win rate should be kept, got %d", config.RobotUserWinRatePercent)
	}
}

func TestNormalizeConfigRejectsInvalidRobotUserWinRatePercent(t *testing.T) {
	tests := []int32{-1, 101}
	for _, rate := range tests {
		if _, err := NormalizeConfig(Config{RobotUserWinRatePercent: rate, RobotUserWinRatePercentSet: true}); err == nil {
			t.Fatalf("NormalizeConfig should reject robot win rate %d", rate)
		}
	}
}