package meta

import (
	"testing"

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

func TestExif(t *testing.T) {
	t.Run("jpg file with exif data", func(t *testing.T) {
		data, err := Exif("testdata/photoshop.jpg")

		if err != nil {
			t.Fatal(err)
		}

		assert.Equal(t, "Michael Mayer", data.Artist)
		assert.Equal(t, "2020-01-01T16:28:23Z", data.TakenAt.Format("2006-01-02T15:04:05Z"))
		assert.Equal(t, "2020-01-01T17:28:23Z", data.TakenAtLocal.Format("2006-01-02T15:04:05Z"))
		assert.Equal(t, "Example file for development", data.Description)
		assert.Equal(t, "This is a legal notice", data.Copyright)
		assert.Equal(t, 2736, data.Height)
		assert.Equal(t, 3648, data.Width)
		assert.Equal(t, 52.459690093888895, data.Lat)
		assert.Equal(t, 13.321831703055555, data.Lng)
		assert.Equal(t, 0, data.Altitude)
		assert.Equal(t, "HUAWEI", data.CameraMake)
		assert.Equal(t, "ELE-L29", data.CameraModel)
		assert.Equal(t, 27, data.FocalLength)
		assert.Equal(t, 1, int(data.Orientation))

		// TODO: Values are empty - why?
		// assert.Equal(t, "HUAWEI P30 Rear Main Camera", data.LensModel)
	})

	t.Run("png file without exif", func(t *testing.T) {
		_, err := Exif("testdata/tweethog.png")

		assert.Error(t, err, "file does not have EXIF")
		// TODO: png with exif data
	})

	t.Run("heic file with exif data", func(t *testing.T) {
		data, err := Exif("testdata/iphone_7.heic")
		if err != nil {
			t.Fatal(err)
		}

		assert.Equal(t, "2018-09-10T03:16:13Z", data.TakenAt.Format("2006-01-02T15:04:05Z"))
		assert.Equal(t, "2018-09-10T12:16:13Z", data.TakenAtLocal.Format("2006-01-02T15:04:05Z"))
		assert.Equal(t, 34.79745, data.Lat)
		assert.Equal(t, 134.76463333333334, data.Lng)
		assert.Equal(t, 0, data.Altitude)
		assert.Equal(t, "Apple", data.CameraMake)
		assert.Equal(t, "iPhone 7", data.CameraModel)
		assert.Equal(t, 74, data.FocalLength)
		assert.Equal(t, 6, int(data.Orientation))
		assert.Equal(t, "Apple", data.LensMake)
		assert.Equal(t, "iPhone 7 back camera 3.99mm f/1.8", data.LensModel)

	})
}