//go:build darwin

package input

import "testing"

func TestResolveDarwinRestoreTargetCarriesOriginalAcrossRapidPastes(t *testing.T) {
	original := darwinClipboardSnapshot{text: "user clipboard", hasText: true}
	current := darwinClipboardSnapshot{text: "first dictated text", hasText: true}

	got := resolveDarwinRestoreTarget(current, true, "first dictated text", original)
	if got != original {
		t.Fatalf("restore target = %+v, want original %+v", got, original)
	}
}

func TestResolveDarwinRestoreTargetUsesCurrentWhenClipboardChanged(t *testing.T) {
	original := darwinClipboardSnapshot{text: "user clipboard", hasText: true}
	current := darwinClipboardSnapshot{text: "external clipboard update", hasText: true}

	got := resolveDarwinRestoreTarget(current, true, "first dictated text", original)
	if got != current {
		t.Fatalf("restore target = %+v, want current %+v", got, current)
	}
}

func TestShouldRestoreDarwinClipboardRequiresCurrentGenerationAndText(t *testing.T) {
	current := darwinClipboardSnapshot{text: "dictated text", hasText: true}

	if !shouldRestoreDarwinClipboard(3, 3, true, "dictated text", "dictated text", current) {
		t.Fatal("expected current generation with matching clipboard to restore")
	}

	if shouldRestoreDarwinClipboard(4, 3, true, "dictated text", "dictated text", current) {
		t.Fatal("stale generation must not restore")
	}

	changed := darwinClipboardSnapshot{text: "user changed clipboard", hasText: true}
	if shouldRestoreDarwinClipboard(3, 3, true, "dictated text", "dictated text", changed) {
		t.Fatal("changed clipboard must not be overwritten")
	}
}