// Copyright 2022 Harness Inc. All rights reserved.
// Use of this source code is governed by the Polyform Free Trial License
// that can be found in the LICENSE.md file for this repository.
package space

import (
	"context"
	"fmt"

	apiauth "github.com/harness/gitness/internal/api/auth"
	"github.com/harness/gitness/internal/auth"
	"github.com/harness/gitness/store/database/dbtx"
	"github.com/harness/gitness/types"
	"github.com/harness/gitness/types/enum"
)

// ListPipelines lists the pipelines in a space.
func (c *Controller) ListPipelines(
	ctx context.Context,
	session *auth.Session,
	spaceRef string,
	pagination types.Pagination,
) ([]*types.Pipeline, int64, error) {
	space, err := c.spaceStore.FindByRef(ctx, spaceRef)
	if err != nil {
		return nil, 0, fmt.Errorf("failed to find parent space: %w", err)
	}

	err = apiauth.CheckSpace(ctx, c.authorizer, session, space, enum.PermissionSpaceView, true)
	if err != nil {
		return nil, 0, fmt.Errorf("could not authorize: %w", err)
	}

	var count int64
	var pipelines []*types.Pipeline

	err = dbtx.New(c.db).WithTx(ctx, func(ctx context.Context) (err error) {
		count, err = c.pipelineStore.Count(ctx, space.ID, pagination)
		if err != nil {
			err = fmt.Errorf("failed to count child executions: %w", err)
			return
		}

		pipelines, err = c.pipelineStore.List(ctx, space.ID, pagination)
		if err != nil {
			err = fmt.Errorf("failed to count child executions: %w", err)
			return
		}
		return
	}, dbtx.TxDefaultReadOnly)
	if err != nil {
		return pipelines, count, fmt.Errorf("failed to list pipelines: %w", err)
	}

	return pipelines, count, nil
}