package helper

import (
	"testing"

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

func TestDerivedInputMode(t *testing.T) {
	mode, err := derivedInputMode(map[string]any{}, nil)
	require.NoError(t, err)
	require.Equal(t, "t2v", mode)

	mode, err = derivedInputMode(map[string]any{"image": "frame.png"}, nil)
	require.NoError(t, err)
	require.Equal(t, "i2v", mode)

	mode, err = derivedInputMode(map[string]any{"image": "frame.png", "video": "clip.mp4"}, nil)
	require.NoError(t, err)
	require.Equal(t, "v2v", mode)
}

func TestDerivedVideoInput(t *testing.T) {
	value, err := derivedVideoInput(map[string]any{}, nil)
	require.NoError(t, err)
	require.Equal(t, false, value)

	value, err = derivedVideoInput(map[string]any{"video_url": "https://example.test/input.mp4"}, nil)
	require.NoError(t, err)
	require.Equal(t, true, value)

	value, err = derivedVideoInput(map[string]any{
		"metadata": map[string]any{
			"content": []any{
				map[string]any{
					"type": "video_url",
					"video_url": map[string]any{
						"url": "https://example.test/input.mp4",
					},
				},
			},
		},
	}, nil)
	require.NoError(t, err)
	require.Equal(t, true, value)

	value, err = derivedVideoInput(map[string]any{
		"metadata": `{"content":[{"type":"video_url","video_url":{"url":"https://example.test/input.mp4"}}]}`,
	}, nil)
	require.NoError(t, err)
	require.Equal(t, true, value)

	value, err = derivedVideoInput(map[string]any{
		"metadata": map[string]any{
			"content": []any{
				map[string]any{
					"type": "image_url",
					"image_url": map[string]any{
						"url": "https://example.test/input.png",
					},
				},
			},
		},
	}, nil)
	require.NoError(t, err)
	require.Equal(t, false, value)
}

func TestDerivedResolutionHelpers(t *testing.T) {
	mp, err := derivedMegapixels(map[string]any{"resolution": "1280x720"}, nil)
	require.NoError(t, err)
	require.InDelta(t, 0.9216, mp, 0.0001)

	ratio, err := derivedAspectRatio(map[string]any{"options": map[string]any{"size": "1280x720"}}, nil)
	require.NoError(t, err)
	require.Equal(t, "16:9", ratio)
}

func TestHasNonEmptyValue(t *testing.T) {
	require.False(t, hasNonEmptyValue(""))
	require.False(t, hasNonEmptyValue("   "))
	require.False(t, hasNonEmptyValue(nil))
	require.False(t, hasNonEmptyValue([]any{}))
	require.True(t, hasNonEmptyValue([]any{"x"}))
	require.True(t, hasNonEmptyValue("x"))
	require.True(t, hasNonEmptyValue(0))
}