package classify

import (
	"testing"

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

func TestLabel_AppendLabel(t *testing.T) {
	cat := Label{Name: "cat", Source: "location", Uncertainty: 80, Priority: 5}
	dog := Label{Name: "dog", Source: "location", Uncertainty: 80, Priority: 5}
	labels := Labels{cat, dog}

	t.Run("labelWithName", func(t *testing.T) {
		assert.Equal(t, 2, labels.Len())
		cow := Label{Name: "cow", Source: "location", Uncertainty: 80, Priority: 5}
		labelsNew := labels.AppendLabel(cow)
		assert.Equal(t, 3, labelsNew.Len())
		assert.Equal(t, "dog", labelsNew[1].Name)
		assert.Equal(t, "cat", labelsNew[0].Name)
		assert.Equal(t, "cow", labelsNew[2].Name)
	})

	t.Run("labelWithoutName", func(t *testing.T) {
		assert.Equal(t, 2, labels.Len())
		cow := Label{Name: "", Source: "location", Uncertainty: 80, Priority: 5}
		labelsNew := labels.AppendLabel(cow)
		assert.Equal(t, 2, labelsNew.Len())
		assert.Equal(t, "dog", labelsNew[1].Name)
	})

}

func TestLabels_Title(t *testing.T) {
	t.Run("first", func(t *testing.T) {
		cat := Label{Name: "cat", Source: "location", Uncertainty: 59, Priority: 5}
		dog := Label{Name: "dog", Source: "location", Uncertainty: 10, Priority: 4}
		labels := Labels{cat, dog}

		assert.Equal(t, "cat", labels.Title("fallback"))
	})

	t.Run("second", func(t *testing.T) {
		cat := Label{Name: "cat", Source: "location", Uncertainty: 61, Priority: 5}
		dog := Label{Name: "dog", Source: "location", Uncertainty: 10, Priority: 4}
		labels := Labels{cat, dog}

		assert.Equal(t, "dog", labels.Title("fallback"))
	})

	t.Run("fallback", func(t *testing.T) {
		cat := Label{Name: "cat", Source: "location", Uncertainty: 80, Priority: 5}
		dog := Label{Name: "dog", Source: "location", Uncertainty: 80, Priority: 4}
		labels := Labels{cat, dog}

		assert.Equal(t, "fallback", labels.Title("fallback"))
	})
}