// Copyright 2023 Harness, Inc.
//
// 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 check

import (
	"context"
	"fmt"

	"github.com/harness/gitness/gitrpc"
	apiauth "github.com/harness/gitness/pkg/api/auth"
	"github.com/harness/gitness/pkg/api/usererror"
	"github.com/harness/gitness/pkg/auth"
	"github.com/harness/gitness/pkg/auth/authz"
	"github.com/harness/gitness/pkg/store"
	"github.com/harness/gitness/types"
	"github.com/harness/gitness/types/enum"

	"github.com/jmoiron/sqlx"
)

type Controller struct {
	db           *sqlx.DB
	authorizer   authz.Authorizer
	repoStore    store.RepoStore
	checkStore   store.CheckStore
	gitRPCClient gitrpc.Interface
}

func NewController(
	db *sqlx.DB,
	authorizer authz.Authorizer,
	repoStore store.RepoStore,
	checkStore store.CheckStore,
	gitRPCClient gitrpc.Interface,
) *Controller {
	return &Controller{
		db:           db,
		authorizer:   authorizer,
		repoStore:    repoStore,
		checkStore:   checkStore,
		gitRPCClient: gitRPCClient,
	}
}

func (c *Controller) getRepoCheckAccess(ctx context.Context,
	session *auth.Session, repoRef string, reqPermission enum.Permission,
) (*types.Repository, error) {
	if repoRef == "" {
		return nil, usererror.BadRequest("A valid repository reference must be provided.")
	}

	repo, err := c.repoStore.FindByRef(ctx, repoRef)
	if err != nil {
		return nil, fmt.Errorf("failed to find repository: %w", err)
	}

	if err = apiauth.CheckRepo(ctx, c.authorizer, session, repo, reqPermission, false); err != nil {
		return nil, fmt.Errorf("access check failed: %w", err)
	}

	return repo, nil
}