// Copyright 2023 Versity Software
// This file is licensed under the Apache License, Version 2.0
// (the "License"); you may not use this file except in compliance
// with the License.  You may obtain a copy of the License at
//
//   http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing,
// software distributed under the License is distributed on an
// "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
// KIND, either express or implied.  See the License for the
// specific language governing permissions and limitations
// under the License.

package integration

import (
	"context"
	"fmt"
	"time"

	"github.com/aws/aws-sdk-go-v2/service/s3"
	"github.com/aws/aws-sdk-go-v2/service/s3/types"
	"github.com/versity/versitygw/s3err"
)

func GetObjectRetention_non_existing_bucket(s *S3Conf) error {
	testName := "GetObjectRetention_non_existing_bucket"
	return actionHandler(s, testName, func(s3client *s3.Client, bucket string) error {
		ctx, cancel := context.WithTimeout(context.Background(), shortTimeout)
		_, err := s3client.GetObjectRetention(ctx, &s3.GetObjectRetentionInput{
			Bucket: getPtr(getBucketName()),
			Key:    getPtr("my-obj"),
		})
		cancel()
		if err := checkApiErr(err, s3err.GetAPIError(s3err.ErrNoSuchBucket)); err != nil {
			return err
		}

		return nil
	})
}

func GetObjectRetention_non_existing_object(s *S3Conf) error {
	testName := "GetObjectRetention_non_existing_object"
	return actionHandler(s, testName, func(s3client *s3.Client, bucket string) error {
		ctx, cancel := context.WithTimeout(context.Background(), shortTimeout)
		_, err := s3client.GetObjectRetention(ctx, &s3.GetObjectRetentionInput{
			Bucket: &bucket,
			Key:    getPtr("my-obj"),
		})
		cancel()
		if err := checkApiErr(err, s3err.GetAPIError(s3err.ErrNoSuchKey)); err != nil {
			return err
		}

		return nil
	})
}

func GetObjectRetention_disabled_lock(s *S3Conf) error {
	testName := "GetObjectRetention_disabled_lock"
	return actionHandler(s, testName, func(s3client *s3.Client, bucket string) error {
		key := "my-obj"
		_, err := putObjects(s3client, []string{key}, bucket)
		if err != nil {
			return err
		}

		ctx, cancel := context.WithTimeout(context.Background(), shortTimeout)
		_, err = s3client.GetObjectRetention(ctx, &s3.GetObjectRetentionInput{
			Bucket: &bucket,
			Key:    &key,
		})
		cancel()
		if err := checkApiErr(err, s3err.GetAPIError(s3err.ErrMissingObjectLockConfiguration)); err != nil {
			return err
		}

		return nil
	})
}

func GetObjectRetention_unset_config(s *S3Conf) error {
	testName := "GetObjectRetention_unset_config"
	return actionHandler(s, testName, func(s3client *s3.Client, bucket string) error {
		key := "my-obj"
		_, err := putObjects(s3client, []string{key}, bucket)
		if err != nil {
			return err
		}

		ctx, cancel := context.WithTimeout(context.Background(), shortTimeout)
		_, err = s3client.GetObjectRetention(ctx, &s3.GetObjectRetentionInput{
			Bucket: &bucket,
			Key:    &key,
		})
		cancel()
		if err := checkApiErr(err, s3err.GetAPIError(s3err.ErrNoSuchObjectLockConfiguration)); err != nil {
			return err
		}

		return nil
	}, withLock())
}

func GetObjectRetention_success(s *S3Conf) error {
	testName := "GetObjectRetention_success"
	return actionHandler(s, testName, func(s3client *s3.Client, bucket string) error {
		key := "my-obj"
		_, err := putObjects(s3client, []string{key}, bucket)
		if err != nil {
			return err
		}

		date := time.Now().Add(time.Hour * 3)
		retention := types.ObjectLockRetention{
			Mode:            types.ObjectLockRetentionModeCompliance,
			RetainUntilDate: &date,
		}

		ctx, cancel := context.WithTimeout(context.Background(), shortTimeout)
		_, err = s3client.PutObjectRetention(ctx, &s3.PutObjectRetentionInput{
			Bucket:    &bucket,
			Key:       &key,
			Retention: &retention,
		})
		cancel()
		if err != nil {
			return err
		}

		ctx, cancel = context.WithTimeout(context.Background(), shortTimeout)
		resp, err := s3client.GetObjectRetention(ctx, &s3.GetObjectRetentionInput{
			Bucket: &bucket,
			Key:    &key,
		})
		cancel()
		if err != nil {
			return err
		}

		if resp.Retention == nil {
			return fmt.Errorf("got nil object lock retention")
		}

		ret := resp.Retention

		if ret.Mode != retention.Mode {
			return fmt.Errorf("expected retention mode to be %v, instead got %v", retention.Mode, ret.Mode)
		}
		// FIXME: There's a problem with storing retainUnitDate, most probably SDK changes the date before sending
		// if ret.RetainUntilDate.Format(iso8601Format)[:8] != retention.RetainUntilDate.Format(iso8601Format)[:8] {
		// 	return fmt.Errorf("expected retain until date to be %v, instead got %v", retention.RetainUntilDate.Format(iso8601Format), ret.RetainUntilDate.Format(iso8601Format))
		// }

		return cleanupLockedObjects(s3client, bucket, []objToDelete{{key: key, isCompliance: true}})
	}, withLock())
}