maps-service/pkg/datastore/gormstore/submissions.go

package gormstore

import (
	"context"
	"errors"

	"git.itzana.me/strafesnet/maps-service/pkg/datastore"
	"git.itzana.me/strafesnet/maps-service/pkg/model"
	"gorm.io/gorm"
	"gorm.io/gorm/clause"
)

var(
	PrivateSubmissions = []model.SubmissionStatus{
		model.SubmissionStatusUnderConstruction,
		model.SubmissionStatusChangesRequested,
	}
)

type Submissions struct {
	db *gorm.DB
}

func (env *Submissions) Get(ctx context.Context, id int64) (model.Submission, error) {
	var submission model.Submission
	if err := env.db.First(&submission, id).Error; err != nil {
		if errors.Is(err, gorm.ErrRecordNotFound) {
			return submission, datastore.ErrNotExist
		}
		return submission, err
	}
	return submission, nil
}

func (env *Submissions) GetList(ctx context.Context, id []int64) ([]model.Submission, error) {
	var mapList []model.Submission
	if err := env.db.Find(&mapList, "id IN ?", id).Error; err != nil {
		return mapList, err
	}

	return mapList, nil
}

func (env *Submissions) Create(ctx context.Context, smap model.Submission) (model.Submission, error) {
	if err := env.db.Create(&smap).Error; err != nil {
		return smap, err
	}

	return smap, nil
}

func (env *Submissions) Update(ctx context.Context, id int64, values datastore.OptionalMap) error {
	if err := env.db.Model(&model.Submission{}).Where("id = ?", id).Updates(values.Map()).Error; err != nil {
		if err == gorm.ErrRecordNotFound {
			return datastore.ErrNotExist
		}
		return err
	}

	return nil
}

// the update can only occur if the status matches one of the provided values.
func (env *Submissions) IfStatusThenUpdate(ctx context.Context, id int64, statuses []model.SubmissionStatus, values datastore.OptionalMap) error {
	if err := env.db.Model(&model.Submission{}).Where("id = ?", id).Where("status_id IN ?", statuses).Updates(values.Map()).Error; err != nil {
		if err == gorm.ErrRecordNotFound {
			return datastore.ErrNotExist
		}
		return err
	}

	return nil
}

// the update can only occur if the status matches one of the provided values.
// returns the updated value
func (env *Submissions) IfStatusThenUpdateAndGet(ctx context.Context, id int64, statuses []model.SubmissionStatus, values datastore.OptionalMap) (model.Submission, error) {
	var submission model.Submission
	result := env.db.Model(&submission).
		Clauses(clause.Returning{}).
		Where("id = ?", id).
		Where("status_id IN ?", statuses).
		Updates(values.Map())
	if result.Error != nil {
		if result.Error == gorm.ErrRecordNotFound {
			return submission, datastore.ErrNotExist
		}
		return submission, result.Error
	}

	if result.RowsAffected == 0 {
		return submission, datastore.ErroNoRowsAffected
	}

	return submission, nil
}

func (env *Submissions) Delete(ctx context.Context, id int64) error {
	if err := env.db.Delete(&model.Submission{}, id).Error; err != nil {
		if err == gorm.ErrRecordNotFound {
			return datastore.ErrNotExist
		}
		return err
	}

	return nil
}

func (env *Submissions) List(ctx context.Context, filters datastore.OptionalMap, page model.Page, sort datastore.ListSort) ([]model.Submission, error) {
	var maps []model.Submission

	db := env.db

	switch sort {
	case datastore.ListSortDisabled:
		// No sort
		break
	case datastore.ListSortDisplayNameAscending:
		db=db.Order("display_name ASC")
		break
	case datastore.ListSortDisplayNameDescending:
		db=db.Order("display_name DESC")
		break
	case datastore.ListSortDateAscending:
		db=db.Order("created_at ASC")
		break
	case datastore.ListSortDateDescending:
		db=db.Order("created_at DESC")
		break
	default:
		return nil, datastore.ErrInvalidListSort
	}

	if err := db.Where(filters.Map()).Offset(int((page.Number - 1) * page.Size)).Limit(int(page.Size)).Find(&maps).Error; err != nil {
		return nil, err
	}

	return maps, nil
}

func (env *Submissions) ListRestricted(ctx context.Context, filters datastore.OptionalMap, page model.Page, sort datastore.ListSort, submitter int64) ([]model.Submission, error) {
	var maps []model.Submission

	db := env.db

	switch sort {
	case datastore.ListSortDisabled:
		// No sort
		break
	case datastore.ListSortDisplayNameAscending:
		db=db.Order("display_name ASC")
		break
	case datastore.ListSortDisplayNameDescending:
		db=db.Order("display_name DESC")
		break
	case datastore.ListSortDateAscending:
		db=db.Order("created_at ASC")
		break
	case datastore.ListSortDateDescending:
		db=db.Order("created_at DESC")
		break
	default:
		return nil, datastore.ErrInvalidListSort
	}

	if err := db.
		Where(filters.Map()).
		// In order to see submissions,
		// at least one of two criteria must be met:
		// - You are the submitter
		// - The submission is not under construction / changes requested
		Where("status_id NOT IN ? OR submitter = ? AND status_id IN ?",PrivateSubmissions,submitter,PrivateSubmissions).
		Offset(int((page.Number - 1) * page.Size)).
		Limit(int(page.Size)).
		Find(&maps).Error; err != nil {
		return nil, err
	}

	return maps, nil
}