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// GoToSocial
// Copyright (C) GoToSocial Authors admin@gotosocial.org
// SPDX-License-Identifier: AGPL-3.0-or-later
//
// 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 conversations
import (
"context"
"encoding/json"
"errors"
"github.com/superseriousbusiness/gotosocial/internal/db"
"github.com/superseriousbusiness/gotosocial/internal/gtserror"
"github.com/superseriousbusiness/gotosocial/internal/gtsmodel"
"github.com/superseriousbusiness/gotosocial/internal/id"
"github.com/superseriousbusiness/gotosocial/internal/log"
"github.com/superseriousbusiness/gotosocial/internal/util"
)
const advancedMigrationID = "20240611190733_add_conversations"
const statusBatchSize = 100
type AdvancedMigrationState struct {
MinID string
MaxIDInclusive string
}
func (p *Processor) MigrateDMsToConversations(ctx context.Context) error {
advancedMigration, err := p.state.DB.GetAdvancedMigration(ctx, advancedMigrationID)
if err != nil && !errors.Is(err, db.ErrNoEntries) {
return gtserror.Newf("couldn't get advanced migration with ID %s: %w", advancedMigrationID, err)
}
state := AdvancedMigrationState{}
if advancedMigration != nil {
// There was a previous migration.
if *advancedMigration.Finished {
// This migration has already been run to completion; we don't need to run it again.
return nil
}
// Otherwise, pick up where we left off.
if err := json.Unmarshal(advancedMigration.StateJSON, &state); err != nil {
// This should never happen.
return gtserror.Newf("couldn't deserialize advanced migration state from JSON: %w", err)
}
} else {
// Start at the beginning.
state.MinID = id.Lowest
// Find the max ID of all existing statuses.
// This will be the last one we migrate;
// newer ones will be handled by the normal conversation flow.
state.MaxIDInclusive, err = p.state.DB.MaxDirectStatusID(ctx)
if err != nil {
return gtserror.Newf("couldn't get max DM status ID for migration: %w", err)
}
// Save a new advanced migration record.
advancedMigration = >smodel.AdvancedMigration{
ID: advancedMigrationID,
Finished: util.Ptr(false),
}
if advancedMigration.StateJSON, err = json.Marshal(state); err != nil {
// This should never happen.
return gtserror.Newf("couldn't serialize advanced migration state to JSON: %w", err)
}
if err := p.state.DB.PutAdvancedMigration(ctx, advancedMigration); err != nil {
return gtserror.Newf("couldn't save state for advanced migration with ID %s: %w", advancedMigrationID, err)
}
}
log.Info(ctx, "migrating DMs to conversations…")
// In batches, get all statuses up to and including the max ID,
// and update conversations for each in order.
for {
// Get status IDs for this batch.
statusIDs, err := p.state.DB.GetDirectStatusIDsBatch(ctx, state.MinID, state.MaxIDInclusive, statusBatchSize)
if err != nil {
return gtserror.Newf("couldn't get DM status ID batch for migration: %w", err)
}
if len(statusIDs) == 0 {
break
}
log.Infof(ctx, "migrating %d DMs starting after %s", len(statusIDs), state.MinID)
// Load the batch by IDs.
statuses, err := p.state.DB.GetStatusesByIDs(ctx, statusIDs)
if err != nil {
return gtserror.Newf("couldn't get DM statuses for migration: %w", err)
}
// Update conversations for each status. Don't generate notifications.
for _, status := range statuses {
if _, err := p.UpdateConversationsForStatus(ctx, status); err != nil {
return gtserror.Newf("couldn't update conversations for status %s during migration: %w", status.ID, err)
}
}
// Save the migration state with the new min ID.
state.MinID = statusIDs[len(statusIDs)-1]
if advancedMigration.StateJSON, err = json.Marshal(state); err != nil {
// This should never happen.
return gtserror.Newf("couldn't serialize advanced migration state to JSON: %w", err)
}
if err := p.state.DB.PutAdvancedMigration(ctx, advancedMigration); err != nil {
return gtserror.Newf("couldn't save state for advanced migration with ID %s: %w", advancedMigrationID, err)
}
}
// Mark the migration as finished.
advancedMigration.Finished = util.Ptr(true)
if err := p.state.DB.PutAdvancedMigration(ctx, advancedMigration); err != nil {
return gtserror.Newf("couldn't save state for advanced migration with ID %s: %w", advancedMigrationID, err)
}
log.Info(ctx, "finished migrating DMs to conversations.")
return nil
}
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