package images

import "testing"

func TestNormalizeOptionsDefaults(t *testing.T) {
	opts, err := NormalizeOptions(ProcessOptions{})
	if err != nil {
		t.Fatalf("unexpected error: %v", err)
	}
	if opts.Quality != DefaultQuality {
		t.Fatalf("expected default quality %d, got %d", DefaultQuality, opts.Quality)
	}
	if opts.Format != DefaultFormat {
		t.Fatalf("expected default format %q, got %q", DefaultFormat, opts.Format)
	}
	if opts.Width != 0 || opts.Height != 0 {
		t.Fatalf("expected width/height to stay 0 when not provided")
	}
}

func TestNormalizeOptionsJPGAlias(t *testing.T) {
	opts, err := NormalizeOptions(ProcessOptions{Format: "jpg", Quality: 10})
	if err != nil {
		t.Fatalf("unexpected error: %v", err)
	}
	if opts.Format != "jpeg" {
		t.Fatalf("expected jpeg alias, got %q", opts.Format)
	}
}

func TestNormalizeOptionsRejectsInvalidValues(t *testing.T) {
	cases := []ProcessOptions{
		{Width: -1, Quality: 90, Format: "avif"},
		{Height: -1, Quality: 90, Format: "avif"},
		{Quality: 101, Format: "avif"},
		{Quality: 90, Format: "gif"},
	}

	for _, tc := range cases {
		if _, err := NormalizeOptions(tc); err == nil {
			t.Fatalf("expected error for case: %+v", tc)
		}
	}
}