// 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"

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

func GetBucketPolicy_non_existing_bucket(s *S3Conf) error {
	testName := "GetBucketPolicy_non_existing_bucket"
	return actionHandler(s, testName, func(s3client *s3.Client, bucket string) error {
		ctx, cancel := context.WithTimeout(context.Background(), shortTimeout)
		_, err := s3client.GetBucketPolicy(ctx, &s3.GetBucketPolicyInput{
			Bucket: getPtr("non-existing-bucket"),
		})
		cancel()

		if err := checkApiErr(err, s3err.GetAPIError(s3err.ErrNoSuchBucket)); err != nil {
			return err
		}
		return nil
	})
}

func GetBucketPolicy_not_set(s *S3Conf) error {
	testName := "GetBucketPolicy_not_set"
	return actionHandler(s, testName, func(s3client *s3.Client, bucket string) error {
		ctx, cancel := context.WithTimeout(context.Background(), shortTimeout)
		_, err := s3client.GetBucketPolicy(ctx, &s3.GetBucketPolicyInput{
			Bucket: &bucket,
		})
		cancel()
		if err := checkApiErr(err, s3err.GetAPIError(s3err.ErrNoSuchBucketPolicy)); err != nil {
			return err
		}

		return nil
	})
}

func GetBucketPolicy_success(s *S3Conf) error {
	testName := "GetBucketPolicy_success"
	return actionHandler(s, testName, func(s3client *s3.Client, bucket string) error {
		doc := genPolicyDoc("Allow", `"*"`, `["s3:DeleteBucket", "s3:GetBucketTagging"]`, fmt.Sprintf(`"arn:aws:s3:::%v"`, bucket))
		ctx, cancel := context.WithTimeout(context.Background(), shortTimeout)
		_, err := s3client.PutBucketPolicy(ctx, &s3.PutBucketPolicyInput{
			Bucket: &bucket,
			Policy: &doc,
		})
		cancel()
		if err != nil {
			return err
		}
		ctx, cancel = context.WithTimeout(context.Background(), shortTimeout)
		out, err := s3client.GetBucketPolicy(ctx, &s3.GetBucketPolicyInput{
			Bucket: &bucket,
		})
		cancel()
		if err != nil {
			return err
		}

		if out.Policy == nil {
			return fmt.Errorf("expected non nil policy result")
		}

		if *out.Policy != doc {
			return fmt.Errorf("expected the bucket policy to be %v, instead got %v", doc, *out.Policy)
		}

		return nil
	})
}