package iam_test

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

	"github.com/stretchr/testify/assert"

	"edge-infra.dev/pkg/lib/build/bazel"
	"edge-infra.dev/pkg/lib/gcp/iam"
)

func TestResolveGoogleAppCreds_Environment(t *testing.T) {
	t.Setenv(iam.GoogleAppCredsEnvVar, "/not/a/real/dir")
	result, err := iam.ResolveGoogleAppCreds()
	assert.NoError(t, err)
	assert.Equal(t, "/not/a/real/dir", result)
}

func TestResolveGoogleAppCreds_Homedir(t *testing.T) {
	testdir, err := bazel.NewTestTmpDir("edge-infra-iam-test-*")
	defer os.RemoveAll(testdir)
	assert.NoError(t, err)

	t.Setenv("HOME", testdir)
	// Create Gcloud directory
	err = os.MkdirAll(filepath.Join(testdir, ".config/gcloud"), 0755)
	assert.NoError(t, err)
	// Touch empty file so GetGoogleAppCreds finds it
	defaultAppCredsPath := filepath.Join(testdir, ".config/gcloud/application_default_credentials.json")
	_, err = os.Create(defaultAppCredsPath)
	defer os.Remove(defaultAppCredsPath)
	assert.NoError(t, err)
	// test
	result, err := iam.ResolveGoogleAppCreds()
	assert.NoError(t, err)
	assert.Equal(t, defaultAppCredsPath, result)
}