package utils

import (
	"os"
	"path/filepath"
	"testing"

	"git.ctrlz.es/mgdelacroix/birthdaybot/model"
	"github.com/stretchr/testify/require"
)

// ToDo: replace with os.CreateTemp
// ioutil.TempFile()
func TestGetPictureForBirthday(t *testing.T) {
	tmpDir, err := os.MkdirTemp("", "birthdaybot-pictures-")
	require.NoError(t, err)
	defer os.RemoveAll(tmpDir)

	birthday := &model.Birthday{
		Name:         "John Doe",
		Email:        "john@doe.com",
		Phone:        "987654321",
		YearOfBirth:  2022,
		MonthOfBirth: 7,
		DayOfBirth:   1,
	}

	expectedPath := filepath.Join(tmpDir, "2022_7_1_987654321.png")

	t.Run("should return the right path when the file exists", func(t *testing.T) {
		// we create the file
		require.NoError(t, os.WriteFile(expectedPath, []byte("dummy"), 0755))

		picture, err := GetPictureForBirthday(birthday, tmpDir)
		require.NoError(t, err)
		require.Equal(t, expectedPath, picture)
	})

	t.Run("should fail if the file doesn't exist", func(t *testing.T) {
		// we ensure that the file doesn't exist
		require.NoError(t, os.Remove(expectedPath))

		picture, err := GetPictureForBirthday(birthday, tmpDir)
		require.ErrorIs(t, err, os.ErrNotExist)
		require.Empty(t, picture)
	})
}