mirror of
https://github.com/ProtonMail/proton-bridge.git
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118 lines
3.0 KiB
Go
118 lines
3.0 KiB
Go
// Copyright (c) 2025 Proton AG
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//
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// This file is part of Proton Mail Bridge.
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//
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// Proton Mail Bridge is free software: you can redistribute it and/or modify
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// it under the terms of the GNU General Public License as published by
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// the Free Software Foundation, either version 3 of the License, or
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// (at your option) any later version.
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//
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// Proton Mail Bridge is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU General Public License for more details.
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//
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// You should have received a copy of the GNU General Public License
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// along with Proton Mail Bridge. If not, see <https://www.gnu.org/licenses/>.
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package imapservice
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import (
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"context"
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"sync"
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"time"
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"github.com/ProtonMail/proton-bridge/v3/internal/events"
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)
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type syncData struct {
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start time.Time
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total int64
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count int64
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last time.Time
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freq time.Duration
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}
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type syncReporter struct {
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userID string
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eventPublisher events.EventPublisher
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dataLock sync.Mutex
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data syncData
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}
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func (rep *syncReporter) withData(f func(s *syncData)) {
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rep.dataLock.Lock()
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defer rep.dataLock.Unlock()
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f(&rep.data)
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}
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func (rep *syncReporter) OnStart(ctx context.Context) {
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rep.withData(func(s *syncData) {
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s.start = time.Now()
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})
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rep.eventPublisher.PublishEvent(ctx, events.SyncStarted{UserID: rep.userID})
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}
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func (rep *syncReporter) OnFinished(ctx context.Context) {
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rep.eventPublisher.PublishEvent(ctx, events.SyncFinished{
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UserID: rep.userID,
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})
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}
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func (rep *syncReporter) OnError(ctx context.Context, err error) {
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rep.eventPublisher.PublishEvent(ctx, events.SyncFailed{
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UserID: rep.userID,
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Error: err,
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})
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}
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func (rep *syncReporter) OnProgress(ctx context.Context, delta int64) {
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rep.withData(func(s *syncData) {
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s.count += delta
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var progress float64
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var remaining time.Duration
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// It's possible for count to be bigger or smaller than total depending on when the sync begins and whether new
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// messages are added/removed during this period. When this happens just limited the progress to 100%.
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if s.count > s.total {
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progress = 1
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} else {
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progress = float64(s.count) / float64(s.total)
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remaining = time.Since(s.start) * time.Duration(s.total-(s.count+1)) / time.Duration(s.count+1)
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}
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if time.Since(s.last) > s.freq {
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rep.eventPublisher.PublishEvent(ctx, events.SyncProgress{
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UserID: rep.userID,
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Progress: progress,
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Elapsed: time.Since(s.start),
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Remaining: remaining,
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})
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s.last = time.Now()
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}
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})
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}
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func (rep *syncReporter) InitializeProgressCounter(_ context.Context, current int64, total int64) {
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rep.withData(func(s *syncData) {
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s.count = current
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s.total = total
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})
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}
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func newSyncReporter(userID string, eventsPublisher events.EventPublisher, freq time.Duration) *syncReporter {
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return &syncReporter{
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userID: userID,
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eventPublisher: eventsPublisher,
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data: syncData{
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start: time.Now(),
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freq: freq,
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},
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}
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}
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