package exoscale

import (
	"os"
	"testing"
	"time"

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

var (
	exoscaleLiveTest  bool
	exoscaleAPIKey    string
	exoscaleAPISecret string
	exoscaleDomain    string
)

func init() {
	exoscaleAPISecret = os.Getenv("EXOSCALE_API_SECRET")
	exoscaleAPIKey = os.Getenv("EXOSCALE_API_KEY")
	exoscaleDomain = os.Getenv("EXOSCALE_DOMAIN")
	if len(exoscaleAPIKey) > 0 && len(exoscaleAPISecret) > 0 && len(exoscaleDomain) > 0 {
		exoscaleLiveTest = true
	}
}

func restoreEnv() {
	os.Setenv("EXOSCALE_API_KEY", exoscaleAPIKey)
	os.Setenv("EXOSCALE_API_SECRET", exoscaleAPISecret)
}

func TestNewDNSProviderValid(t *testing.T) {
	defer restoreEnv()
	os.Setenv("EXOSCALE_API_KEY", "")
	os.Setenv("EXOSCALE_API_SECRET", "")

	config := NewDefaultConfig()
	config.APIKey = "example@example.com"
	config.APISecret = "123"

	_, err := NewDNSProviderConfig(config)
	require.NoError(t, err)
}

func TestNewDNSProviderValidEnv(t *testing.T) {
	defer restoreEnv()
	os.Setenv("EXOSCALE_API_KEY", "example@example.com")
	os.Setenv("EXOSCALE_API_SECRET", "123")

	_, err := NewDNSProvider()
	require.NoError(t, err)
}

func TestNewDNSProviderMissingCredErr(t *testing.T) {
	os.Setenv("EXOSCALE_API_KEY", "")
	os.Setenv("EXOSCALE_API_SECRET", "")
	defer restoreEnv()

	_, err := NewDNSProvider()
	assert.EqualError(t, err, "exoscale: some credentials information are missing: EXOSCALE_API_KEY,EXOSCALE_API_SECRET")
}

func TestDNSProvider_FindZoneAndRecordName(t *testing.T) {
	config := NewDefaultConfig()
	config.APIKey = "example@example.com"
	config.APISecret = "123"

	provider, err := NewDNSProviderConfig(config)
	require.NoError(t, err)

	type expected struct {
		zone       string
		recordName string
	}

	testCases := []struct {
		desc     string
		fqdn     string
		domain   string
		expected expected
	}{
		{
			desc:   "Extract root record name",
			fqdn:   "_acme-challenge.bar.com.",
			domain: "bar.com",
			expected: expected{
				zone:       "bar.com",
				recordName: "_acme-challenge",
			},
		},
		{
			desc:   "Extract sub record name",
			fqdn:   "_acme-challenge.foo.bar.com.",
			domain: "foo.bar.com",
			expected: expected{
				zone:       "bar.com",
				recordName: "_acme-challenge.foo",
			},
		},
	}

	for _, test := range testCases {
		test := test
		t.Run(test.desc, func(t *testing.T) {
			t.Parallel()

			zone, recordName, err := provider.FindZoneAndRecordName(test.fqdn, test.domain)
			require.NoError(t, err)
			assert.Equal(t, test.expected.zone, zone)
			assert.Equal(t, test.expected.recordName, recordName)
		})
	}
}

func TestLiveExoscalePresent(t *testing.T) {
	if !exoscaleLiveTest {
		t.Skip("skipping live test")
	}

	config := NewDefaultConfig()
	config.APIKey = exoscaleAPIKey
	config.APISecret = exoscaleAPISecret

	provider, err := NewDNSProviderConfig(config)
	require.NoError(t, err)

	err = provider.Present(exoscaleDomain, "", "123d==")
	require.NoError(t, err)

	// Present Twice to handle create / update
	err = provider.Present(exoscaleDomain, "", "123d==")
	require.NoError(t, err)
}

func TestLiveExoscaleCleanUp(t *testing.T) {
	if !exoscaleLiveTest {
		t.Skip("skipping live test")
	}

	time.Sleep(time.Second * 1)

	config := NewDefaultConfig()
	config.APIKey = exoscaleAPIKey
	config.APISecret = exoscaleAPISecret

	provider, err := NewDNSProviderConfig(config)
	require.NoError(t, err)

	err = provider.CleanUp(exoscaleDomain, "", "123d==")
	require.NoError(t, err)
}