Pg to bun (#148)

* start moving to bun

* changing more stuff

* more

* and yet more

* tests passing

* seems stable now

* more big changes

* small fix

* little fixes

internal/db/bundb/account.go

@@ -0,0 +1,291 @@
+/*
+   GoToSocial
+   Copyright (C) 2021 GoToSocial Authors admin@gotosocial.org
+
+   This program is free software: you can redistribute it and/or modify
+   it under the terms of the GNU Affero General Public License as published by
+   the Free Software Foundation, either version 3 of the License, or
+   (at your option) any later version.
+
+   This program is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+   GNU Affero General Public License for more details.
+
+   You should have received a copy of the GNU Affero General Public License
+   along with this program.  If not, see <http://www.gnu.org/licenses/>.
+*/
+
+package bundb
+
+import (
+	"context"
+	"errors"
+	"fmt"
+	"strings"
+	"time"
+
+	"github.com/sirupsen/logrus"
+	"github.com/superseriousbusiness/gotosocial/internal/config"
+	"github.com/superseriousbusiness/gotosocial/internal/db"
+	"github.com/superseriousbusiness/gotosocial/internal/gtsmodel"
+	"github.com/uptrace/bun"
+)
+
+type accountDB struct {
+	config *config.Config
+	conn   *bun.DB
+	log    *logrus.Logger
+}
+
+func (a *accountDB) newAccountQ(account *gtsmodel.Account) *bun.SelectQuery {
+	return a.conn.
+		NewSelect().
+		Model(account).
+		Relation("AvatarMediaAttachment").
+		Relation("HeaderMediaAttachment")
+}
+
+func (a *accountDB) GetAccountByID(ctx context.Context, id string) (*gtsmodel.Account, db.Error) {
+	account := new(gtsmodel.Account)
+
+	q := a.newAccountQ(account).
+		Where("account.id = ?", id)
+
+	err := processErrorResponse(q.Scan(ctx))
+
+	return account, err
+}
+
+func (a *accountDB) GetAccountByURI(ctx context.Context, uri string) (*gtsmodel.Account, db.Error) {
+	account := new(gtsmodel.Account)
+
+	q := a.newAccountQ(account).
+		Where("account.uri = ?", uri)
+
+	err := processErrorResponse(q.Scan(ctx))
+
+	return account, err
+}
+
+func (a *accountDB) GetAccountByURL(ctx context.Context, uri string) (*gtsmodel.Account, db.Error) {
+	account := new(gtsmodel.Account)
+
+	q := a.newAccountQ(account).
+		Where("account.url = ?", uri)
+
+	err := processErrorResponse(q.Scan(ctx))
+
+	return account, err
+}
+
+func (a *accountDB) UpdateAccount(ctx context.Context, account *gtsmodel.Account) (*gtsmodel.Account, db.Error) {
+	if strings.TrimSpace(account.ID) == "" {
+		return nil, errors.New("account had no ID")
+	}
+
+	account.UpdatedAt = time.Now()
+
+	q := a.conn.
+		NewUpdate().
+		Model(account).
+		WherePK()
+
+	_, err := q.Exec(ctx)
+
+	err = processErrorResponse(err)
+
+	return account, err
+}
+
+func (a *accountDB) GetInstanceAccount(ctx context.Context, domain string) (*gtsmodel.Account, db.Error) {
+	account := new(gtsmodel.Account)
+
+	q := a.newAccountQ(account)
+
+	if domain == "" {
+		q = q.
+			Where("account.username = ?", domain).
+			Where("account.domain = ?", domain)
+	} else {
+		q = q.
+			Where("account.username = ?", domain).
+			Where("? IS NULL", bun.Ident("domain"))
+	}
+
+	err := processErrorResponse(q.Scan(ctx))
+
+	return account, err
+}
+
+func (a *accountDB) GetAccountLastPosted(ctx context.Context, accountID string) (time.Time, db.Error) {
+	status := new(gtsmodel.Status)
+
+	q := a.conn.
+		NewSelect().
+		Model(status).
+		Order("id DESC").
+		Limit(1).
+		Where("account_id = ?", accountID).
+		Column("created_at")
+
+	err := processErrorResponse(q.Scan(ctx))
+
+	return status.CreatedAt, err
+}
+
+func (a *accountDB) SetAccountHeaderOrAvatar(ctx context.Context, mediaAttachment *gtsmodel.MediaAttachment, accountID string) db.Error {
+	if mediaAttachment.Avatar && mediaAttachment.Header {
+		return errors.New("one media attachment cannot be both header and avatar")
+	}
+
+	var headerOrAVI string
+	if mediaAttachment.Avatar {
+		headerOrAVI = "avatar"
+	} else if mediaAttachment.Header {
+		headerOrAVI = "header"
+	} else {
+		return errors.New("given media attachment was neither a header nor an avatar")
+	}
+
+	// TODO: there are probably more side effects here that need to be handled
+	if _, err := a.conn.
+		NewInsert().
+		Model(mediaAttachment).
+		Exec(ctx); err != nil {
+		return err
+	}
+
+	if _, err := a.conn.
+		NewUpdate().
+		Model(&gtsmodel.Account{}).
+		Set(fmt.Sprintf("%s_media_attachment_id = ?", headerOrAVI), mediaAttachment.ID).
+		Where("id = ?", accountID).
+		Exec(ctx); err != nil {
+		return err
+	}
+	return nil
+}
+
+func (a *accountDB) GetLocalAccountByUsername(ctx context.Context, username string) (*gtsmodel.Account, db.Error) {
+	account := new(gtsmodel.Account)
+
+	q := a.newAccountQ(account).
+		Where("username = ?", username).
+		Where("? IS NULL", bun.Ident("domain"))
+
+	err := processErrorResponse(q.Scan(ctx))
+
+	return account, err
+}
+
+func (a *accountDB) GetAccountFaves(ctx context.Context, accountID string) ([]*gtsmodel.StatusFave, db.Error) {
+	faves := new([]*gtsmodel.StatusFave)
+
+	if err := a.conn.
+		NewSelect().
+		Model(faves).
+		Where("account_id = ?", accountID).
+		Scan(ctx); err != nil {
+		return nil, err
+	}
+	return *faves, nil
+}
+
+func (a *accountDB) CountAccountStatuses(ctx context.Context, accountID string) (int, db.Error) {
+	return a.conn.
+		NewSelect().
+		Model(&gtsmodel.Status{}).
+		Where("account_id = ?", accountID).
+		Count(ctx)
+}
+
+func (a *accountDB) GetAccountStatuses(ctx context.Context, accountID string, limit int, excludeReplies bool, maxID string, pinnedOnly bool, mediaOnly bool) ([]*gtsmodel.Status, db.Error) {
+	a.log.Debugf("getting statuses for account %s", accountID)
+	statuses := []*gtsmodel.Status{}
+
+	q := a.conn.
+		NewSelect().
+		Model(&statuses).
+		Order("id DESC")
+
+	if accountID != "" {
+		q = q.Where("account_id = ?", accountID)
+	}
+
+	if limit != 0 {
+		q = q.Limit(limit)
+	}
+
+	if excludeReplies {
+		q = q.Where("? IS NULL", bun.Ident("in_reply_to_id"))
+	}
+
+	if pinnedOnly {
+		q = q.Where("pinned = ?", true)
+	}
+
+	if maxID != "" {
+		q = q.Where("id < ?", maxID)
+	}
+
+	if mediaOnly {
+		q = q.WhereGroup(" AND ", func(q *bun.SelectQuery) *bun.SelectQuery {
+			return q.
+				WhereOr("? IS NOT NULL", bun.Ident("attachments")).
+				WhereOr("attachments != '{}'")
+		})
+	}
+
+	if err := q.Scan(ctx); err != nil {
+		return nil, err
+	}
+
+	if len(statuses) == 0 {
+		return nil, db.ErrNoEntries
+	}
+
+	a.log.Debugf("returning statuses for account %s", accountID)
+	return statuses, nil
+}
+
+func (a *accountDB) GetAccountBlocks(ctx context.Context, accountID string, maxID string, sinceID string, limit int) ([]*gtsmodel.Account, string, string, db.Error) {
+	blocks := []*gtsmodel.Block{}
+
+	fq := a.conn.
+		NewSelect().
+		Model(&blocks).
+		Where("block.account_id = ?", accountID).
+		Relation("TargetAccount").
+		Order("block.id DESC")
+
+	if maxID != "" {
+		fq = fq.Where("block.id < ?", maxID)
+	}
+
+	if sinceID != "" {
+		fq = fq.Where("block.id > ?", sinceID)
+	}
+
+	if limit > 0 {
+		fq = fq.Limit(limit)
+	}
+
+	err := fq.Scan(ctx)
+	if err != nil {
+		return nil, "", "", err
+	}
+
+	if len(blocks) == 0 {
+		return nil, "", "", db.ErrNoEntries
+	}
+
+	accounts := []*gtsmodel.Account{}
+	for _, b := range blocks {
+		accounts = append(accounts, b.TargetAccount)
+	}
+
+	nextMaxID := blocks[len(blocks)-1].ID
+	prevMinID := blocks[0].ID
+	return accounts, nextMaxID, prevMinID, nil
+}