// Copyright (c) 2015-present Mattermost, Inc. All Rights Reserved.
// See LICENSE.txt for license information.

package sqlstore

import (
	"database/sql"

	"github.com/mattermost/mattermost-server/v5/einterfaces"
	"github.com/mattermost/mattermost-server/v5/model"
	"github.com/mattermost/mattermost-server/v5/store"

	"github.com/pkg/errors"
)

type SqlTermsOfServiceStore struct {
	SqlStore
	metrics einterfaces.MetricsInterface
}

func newSqlTermsOfServiceStore(sqlStore SqlStore, metrics einterfaces.MetricsInterface) store.TermsOfServiceStore {
	s := SqlTermsOfServiceStore{sqlStore, metrics}

	for _, db := range sqlStore.GetAllConns() {
		table := db.AddTableWithName(model.TermsOfService{}, "TermsOfService").SetKeys(false, "Id")
		table.ColMap("Id").SetMaxSize(26)
		table.ColMap("UserId").SetMaxSize(26)
		table.ColMap("Text").SetMaxSize(model.POST_MESSAGE_MAX_BYTES_V2)
	}

	return s
}

func (s SqlTermsOfServiceStore) createIndexesIfNotExists() {
}

func (s SqlTermsOfServiceStore) Save(termsOfService *model.TermsOfService) (*model.TermsOfService, error) {
	if len(termsOfService.Id) > 0 {
		return nil, store.NewErrInvalidInput("TermsOfService", "Id", termsOfService.Id)
	}

	termsOfService.PreSave()

	if err := termsOfService.IsValid(); err != nil {
		return nil, err
	}

	if err := s.GetMaster().Insert(termsOfService); err != nil {
		return nil, errors.Wrapf(err, "could not save a new TermsOfService")
	}

	return termsOfService, nil
}

func (s SqlTermsOfServiceStore) GetLatest(allowFromCache bool) (*model.TermsOfService, error) {
	var termsOfService *model.TermsOfService

	err := s.GetReplica().SelectOne(&termsOfService, "SELECT * FROM TermsOfService ORDER BY CreateAt DESC LIMIT 1")
	if err != nil {
		if err == sql.ErrNoRows {
			return nil, store.NewErrNotFound("TermsOfService", "CreateAt=latest")
		}
		return nil, errors.Wrap(err, "could not find latest TermsOfService")
	}

	return termsOfService, nil
}

func (s SqlTermsOfServiceStore) Get(id string, allowFromCache bool) (*model.TermsOfService, error) {
	obj, err := s.GetReplica().Get(model.TermsOfService{}, id)
	if err != nil {
		return nil, errors.Wrapf(err, "could not find TermsOfService with id=%s", id)
	}
	if obj == nil {
		return nil, store.NewErrNotFound("TermsOfService", id)
	}
	return obj.(*model.TermsOfService), nil
}