package restic

import (
	"github.com/stretchr/testify/assert"
	"io/fs"
	"os"
	"testing"
)

func init() {
	configDir = "./"
	os.RemoveAll("config.json")
}

func TestReadConfig_NoFile_Error(t *testing.T) {
	config, err := ReadConfig()
	assert.Nilf(t, config, "expected config to be nil")
	assert.Error(t, err)
}

func TestReadConfig_MalformedJSON_Error(t *testing.T) {
	os.WriteFile("config.json", []byte("{ whoops"), fs.ModePerm)
	config, err := ReadConfig()
	assert.Nilf(t, config, "expected config to be nil")
	assert.ErrorContainsf(t, err, "malformed", "expected err to contain malformed msg")
}

func TestReadConfig_ValidJSONFile_Ok(t *testing.T) {
	os.WriteFile("config.json", []byte("{\"backupTimeInHours\": 5, \"repository\": \"repodir\", \"backup\": \"backupfiles\"}"), fs.ModePerm)
	config, err := ReadConfig()

	assert.NoError(t, err)
	assert.Equal(t, 5, config.BackupTimeInHours)
	assert.Equal(t, "repodir", config.Repository)
	assert.Equal(t, "backupfiles", config.Backup)
}

func TestReadConfig_WithoutBackupTime_DefaultsTo24hrs(t *testing.T) {
	os.WriteFile("config.json", []byte("{\"repository\": \"repodir\", \"backup\": \"backupfiles\"}"), fs.ModePerm)
	config, err := ReadConfig()

	assert.NoError(t, err)
	assert.Equal(t, 24, config.BackupTimeInHours)
	assert.Equal(t, "repodir", config.Repository)
	assert.Equal(t, "backupfiles", config.Backup)
}