/*
Copyright © contributors to CloudNativePG, established as
CloudNativePG a Series of LF Projects, LLC.

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.

SPDX-License-Identifier: Apache-2.0
*/

package postgres

import (
	"bytes"
	"os/exec"

	"github.com/cloudnative-pg/cloudnative-pg/pkg/versions"

	. "github.com/onsi/ginkgo/v2"
	. "github.com/onsi/gomega"
)

var _ = Describe("Guess the correct version of a postgres image", func() {
	It("works with 9.6", func() {
		version, err := BumpPostgresImageMajorVersion("docker.io/library/postgres:9.6.4")
		Expect(err).ShouldNot(HaveOccurred())
		Expect(version).To(Equal("docker.io/library/postgres:10"))
	})

	It("works with latest image", func() {
		version, err := BumpPostgresImageMajorVersion(versions.DefaultImageName)
		Expect(err).ShouldNot(HaveOccurred())
		Expect(version).To(Equal(versions.DefaultImageName))
	})

	It("can pull the default image", func() {
		dockerPath, err := exec.LookPath("docker")
		if err != nil {
			Skip("docker not found in path")
		}
		var stderr bytes.Buffer
		cmd := exec.Command(dockerPath, "pull", "-q", versions.DefaultImageName) // #nosec G204
		cmd.Stderr = &stderr
		err = cmd.Run()
		Expect(stderr.String()).To(BeEmpty(), "while pulling "+versions.DefaultImageName)
		Expect(err).ShouldNot(HaveOccurred())
	})
})
