/*
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
*/

// The CheckDocVersion module is designed to check if the version of the
// documentation exists for the version specified in the release-please manifest.
// This is used to ensure that we do not release a new version of the plugin
// without having the corresponding documentation ready.

package main

import (
	"context"
	"fmt"
	"strings"

	"dagger/check-doc-version/internal/dagger"
)

type CheckDocVersion struct{}

// HasVersionDocumentation checks if a version of the documentation exists for the
// version in the release-please manifest.
func (m *CheckDocVersion) HasVersionDocumentation(ctx context.Context, src *dagger.Directory) (bool, error) {
	releasePleaseManifest := ".release-please-manifest.json"
	docusaurusVersions := "web/versions.json"
	ctr := dag.Container().From("alpine:latest").
		WithDirectory("/src", src).
		WithWorkdir("/src").
		WithExec([]string{"apk", "add", "jq"})
	nextVersion, err := ctr.
		WithExec([]string{"jq", "-r", ".[\".\"]", releasePleaseManifest}).
		Stdout(ctx)
	nextVersion = strings.TrimSpace(nextVersion)
	if err != nil {
		return false, fmt.Errorf("cannot find proposed release-please version in %v: %w", releasePleaseManifest,
			err)
	}
	currVersion, err := ctr.WithExec([]string{"jq", "-r", fmt.Sprintf(". | index(\"%v\")", nextVersion),
		docusaurusVersions}).Stdout(ctx)
	currVersion = strings.TrimSpace(currVersion)
	if err != nil {
		return false, fmt.Errorf("error querying versions in %v: %w", docusaurusVersions, err)
	}
	if currVersion == "null" {
		return false, nil
	}
	return true, nil
}