package widgets import ( "bytes" "errors" "fmt" "sync" "time" "github.com/gdamore/tcell/v2" "git.sr.ht/~rjarry/aerc/config" "git.sr.ht/~rjarry/aerc/lib" "git.sr.ht/~rjarry/aerc/lib/hooks" "git.sr.ht/~rjarry/aerc/lib/marker" "git.sr.ht/~rjarry/aerc/lib/sort" "git.sr.ht/~rjarry/aerc/lib/state" "git.sr.ht/~rjarry/aerc/lib/templates" "git.sr.ht/~rjarry/aerc/lib/ui" "git.sr.ht/~rjarry/aerc/log" "git.sr.ht/~rjarry/aerc/models" "git.sr.ht/~rjarry/aerc/worker" "git.sr.ht/~rjarry/aerc/worker/types" ) var _ ProvidesMessages = (*AccountView)(nil) type AccountView struct { sync.Mutex acct *config.AccountConfig aerc *Aerc dirlist DirectoryLister labels []string grid *ui.Grid host TabHost tab *ui.Tab msglist *MessageList worker *types.Worker state state.AccountState newConn bool // True if this is a first run after a new connection/reconnection uiConf *config.UIConfig split *MessageViewer splitSize int splitDebounce *time.Timer splitDir string // Check-mail ticker ticker *time.Ticker checkingMail bool } func (acct *AccountView) UiConfig() *config.UIConfig { if dirlist := acct.Directories(); dirlist != nil { return dirlist.UiConfig("") } return acct.uiConf } func NewAccountView( aerc *Aerc, acct *config.AccountConfig, host TabHost, deferLoop chan struct{}, ) (*AccountView, error) { acctUiConf := config.Ui.ForAccount(acct.Name) view := &AccountView{ acct: acct, aerc: aerc, host: host, uiConf: acctUiConf, } view.grid = ui.NewGrid().Rows([]ui.GridSpec{ {Strategy: ui.SIZE_WEIGHT, Size: ui.Const(1)}, }).Columns([]ui.GridSpec{ {Strategy: ui.SIZE_EXACT, Size: func() int { return view.UiConfig().SidebarWidth }}, {Strategy: ui.SIZE_WEIGHT, Size: ui.Const(1)}, }) worker, err := worker.NewWorker(acct.Source, acct.Name) if err != nil { host.SetError(fmt.Sprintf("%s: %s", acct.Name, err)) log.Errorf("%s: %v", acct.Name, err) return view, err } view.worker = worker view.dirlist = NewDirectoryList(acct, worker) if acctUiConf.SidebarWidth > 0 { view.grid.AddChild(ui.NewBordered(view.dirlist, ui.BORDER_RIGHT, acctUiConf)) } view.msglist = NewMessageList(aerc, view) view.grid.AddChild(view.msglist).At(0, 1) view.dirlist.OnVirtualNode(func() { view.msglist.SetStore(nil) view.Invalidate() }) go func() { defer log.PanicHandler() if deferLoop != nil { <-deferLoop } worker.Backend.Run() }() worker.PostAction(&types.Configure{Config: acct}, nil) worker.PostAction(&types.Connect{}, nil) view.SetStatus(state.ConnectionActivity("Connecting...")) if acct.CheckMail.Minutes() > 0 { view.CheckMailTimer(acct.CheckMail) } return view, nil } func (acct *AccountView) SetStatus(setters ...state.SetStateFunc) { for _, fn := range setters { fn(&acct.state, acct.SelectedDirectory()) } acct.UpdateStatus() } func (acct *AccountView) UpdateStatus() { if acct.isSelected() { acct.host.UpdateStatus() } } func (acct *AccountView) PushStatus(status string, expiry time.Duration) { acct.aerc.PushStatus(fmt.Sprintf("%s: %s", acct.acct.Name, status), expiry) } func (acct *AccountView) PushError(err error) { acct.aerc.PushError(fmt.Sprintf("%s: %v", acct.acct.Name, err)) } func (acct *AccountView) PushWarning(warning string) { acct.aerc.PushWarning(fmt.Sprintf("%s: %s", acct.acct.Name, warning)) } func (acct *AccountView) AccountConfig() *config.AccountConfig { return acct.acct } func (acct *AccountView) Worker() *types.Worker { return acct.worker } func (acct *AccountView) Name() string { return acct.acct.Name } func (acct *AccountView) Invalidate() { ui.Invalidate() } func (acct *AccountView) Draw(ctx *ui.Context) { acct.grid.Draw(ctx) } func (acct *AccountView) MouseEvent(localX int, localY int, event tcell.Event) { acct.grid.MouseEvent(localX, localY, event) } func (acct *AccountView) Focus(focus bool) { // TODO: Unfocus children I guess } func (acct *AccountView) Directories() DirectoryLister { return acct.dirlist } func (acct *AccountView) Labels() []string { return acct.labels } func (acct *AccountView) Messages() *MessageList { return acct.msglist } func (acct *AccountView) Store() *lib.MessageStore { if acct.msglist == nil { return nil } return acct.msglist.Store() } func (acct *AccountView) SelectedAccount() *AccountView { return acct } func (acct *AccountView) SelectedDirectory() string { return acct.dirlist.Selected() } func (acct *AccountView) SelectedMessage() (*models.MessageInfo, error) { if acct.msglist == nil || acct.msglist.Store() == nil { return nil, errors.New("init in progress") } if len(acct.msglist.Store().Uids()) == 0 { return nil, errors.New("no message selected") } msg := acct.msglist.Selected() if msg == nil { return nil, errors.New("message not loaded") } return msg, nil } func (acct *AccountView) MarkedMessages() ([]uint32, error) { if store := acct.Store(); store != nil { return store.Marker().Marked(), nil } return nil, errors.New("no store available") } func (acct *AccountView) SelectedMessagePart() *PartInfo { return nil } func (acct *AccountView) isSelected() bool { return acct == acct.aerc.SelectedAccount() } func (acct *AccountView) newStore(name string) *lib.MessageStore { uiConf := acct.dirlist.UiConfig(name) store := lib.NewMessageStore(acct.worker, acct.GetSortCriteria(), uiConf.ThreadingEnabled, uiConf.ForceClientThreads, uiConf.ClientThreadsDelay, uiConf.ReverseOrder, uiConf.ReverseThreadOrder, uiConf.SortThreadSiblings, func(msg *models.MessageInfo) { err := hooks.RunHook(&hooks.MailReceived{ MsgInfo: msg, }) if err != nil { msg := fmt.Sprintf("mail-received hook: %s", err) acct.aerc.PushError(msg) } }, func() { if uiConf.NewMessageBell { acct.host.Beep() } }, acct.updateSplitView, ) store.SetMarker(marker.New(store)) return store } func (acct *AccountView) onMessage(msg types.WorkerMessage) { msg = acct.worker.ProcessMessage(msg) switch msg := msg.(type) { case *types.Done: switch resp := msg.InResponseTo().(type) { case *types.Connect, *types.Reconnect: acct.SetStatus(state.ConnectionActivity("Listing mailboxes...")) log.Infof("[%s] connected.", acct.acct.Name) acct.SetStatus(state.SetConnected(true)) log.Tracef("Listing mailboxes...") acct.worker.PostAction(&types.ListDirectories{}, nil) case *types.Disconnect: acct.dirlist.ClearList() acct.msglist.SetStore(nil) log.Infof("[%s] disconnected.", acct.acct.Name) acct.SetStatus(state.SetConnected(false)) case *types.OpenDirectory: if store, ok := acct.dirlist.SelectedMsgStore(); ok { // If we've opened this dir before, we can re-render it from // memory while we wait for the update and the UI feels // snappier. If not, we'll unset the store and show the spinner // while we download the UID list. acct.msglist.SetStore(store) acct.Store().Update(msg.InResponseTo()) } else { acct.msglist.SetStore(nil) } case *types.CreateDirectory: store := acct.newStore(resp.Directory) acct.dirlist.SetMsgStore(&models.Directory{ Name: resp.Directory, }, store) acct.dirlist.Update(msg) case *types.RemoveDirectory: acct.dirlist.Update(msg) case *types.FetchMessageHeaders: if acct.newConn { acct.checkMailOnStartup() } case *types.ListDirectories: acct.dirlist.Update(msg) if acct.dirlist.Selected() != "" { return } // Nothing selected, select based on config dirs := acct.dirlist.List() var dir string for _, _dir := range dirs { if _dir == acct.acct.Default { dir = _dir break } } if dir == "" && len(dirs) > 0 { dir = dirs[0] } if dir != "" { acct.dirlist.Select(dir) } acct.msglist.SetInitDone() acct.newConn = true } case *types.Directory: store := acct.newStore(msg.Dir.Name) acct.dirlist.SetMsgStore(msg.Dir, store) case *types.DirectoryInfo: acct.dirlist.Update(msg) case *types.DirectoryContents: if store, ok := acct.dirlist.SelectedMsgStore(); ok { if acct.msglist.Store() == nil { acct.msglist.SetStore(store) } store.Update(msg) acct.SetStatus(state.Threading(store.ThreadedView())) } if acct.newConn && len(msg.Uids) == 0 { acct.checkMailOnStartup() } case *types.DirectoryThreaded: if store, ok := acct.dirlist.SelectedMsgStore(); ok { if acct.msglist.Store() == nil { acct.msglist.SetStore(store) } store.Update(msg) acct.SetStatus(state.Threading(store.ThreadedView())) } if acct.newConn && len(msg.Threads) == 0 { acct.checkMailOnStartup() } case *types.FullMessage: if store, ok := acct.dirlist.SelectedMsgStore(); ok { store.Update(msg) } case *types.MessageInfo: if store, ok := acct.dirlist.SelectedMsgStore(); ok { store.Update(msg) } case *types.MessagesDeleted: if dir := acct.dirlist.SelectedDirectory(); dir != nil { dir.Exists -= len(msg.Uids) } if store, ok := acct.dirlist.SelectedMsgStore(); ok { store.Update(msg) } case *types.MessagesCopied: acct.updateDirCounts(msg.Destination, msg.Uids) case *types.MessagesMoved: acct.updateDirCounts(msg.Destination, msg.Uids) case *types.LabelList: acct.labels = msg.Labels case *types.ConnError: log.Errorf("[%s] connection error: %v", acct.acct.Name, msg.Error) acct.SetStatus(state.SetConnected(false)) acct.PushError(msg.Error) acct.msglist.SetStore(nil) acct.worker.PostAction(&types.Reconnect{}, nil) case *types.Error: log.Errorf("[%s] unexpected error: %v", acct.acct.Name, msg.Error) acct.PushError(msg.Error) } acct.UpdateStatus() acct.setTitle() } func (acct *AccountView) updateDirCounts(destination string, uids []uint32) { // Only update the destination destDir if it is initialized if destDir := acct.dirlist.Directory(destination); destDir != nil { var recent, unseen int var accurate bool = true for _, uid := range uids { // Get the message from the originating store msg, ok := acct.Store().Messages[uid] if !ok { continue } // If message that was not yet loaded is copied if msg == nil { accurate = false break } seen := msg.Flags.Has(models.SeenFlag) if msg.Flags.Has(models.RecentFlag) { recent++ } if !seen { unseen++ } } if accurate { destDir.Recent += recent destDir.Unseen += unseen destDir.Exists += len(uids) } else { destDir.Exists += len(uids) } } } func (acct *AccountView) GetSortCriteria() []*types.SortCriterion { if len(acct.UiConfig().Sort) == 0 { return nil } criteria, err := sort.GetSortCriteria(acct.UiConfig().Sort) if err != nil { acct.PushError(fmt.Errorf("ui sort: %w", err)) return nil } return criteria } func (acct *AccountView) CheckMail() { acct.Lock() defer acct.Unlock() if acct.checkingMail { return } // Exclude selected mailbox, per IMAP specification exclude := append(acct.AccountConfig().CheckMailExclude, acct.dirlist.Selected()) //nolint:gocritic // intentional append to different slice dirs := acct.dirlist.List() dirs = acct.dirlist.FilterDirs(dirs, acct.AccountConfig().CheckMailInclude, false) dirs = acct.dirlist.FilterDirs(dirs, exclude, true) log.Debugf("Checking for new mail on account %s", acct.Name()) acct.SetStatus(state.ConnectionActivity("Checking for new mail...")) msg := &types.CheckMail{ Directories: dirs, Command: acct.acct.CheckMailCmd, Timeout: acct.acct.CheckMailTimeout, } acct.checkingMail = true var cb func(types.WorkerMessage) cb = func(response types.WorkerMessage) { dirsMsg, ok := response.(*types.CheckMailDirectories) if ok { checkMailMsg := &types.CheckMail{ Directories: dirsMsg.Directories, Command: acct.acct.CheckMailCmd, Timeout: acct.acct.CheckMailTimeout, } acct.worker.PostAction(checkMailMsg, cb) } else { // Done acct.SetStatus(state.ConnectionActivity("")) acct.Lock() acct.checkingMail = false acct.Unlock() } } acct.worker.PostAction(msg, cb) } // CheckMailReset resets the check-mail timer func (acct *AccountView) CheckMailReset() { if acct.ticker != nil { d := acct.AccountConfig().CheckMail acct.ticker = time.NewTicker(d) } } func (acct *AccountView) checkMailOnStartup() { if acct.AccountConfig().CheckMail.Minutes() > 0 { acct.newConn = false acct.CheckMail() } } func (acct *AccountView) CheckMailTimer(d time.Duration) { acct.ticker = time.NewTicker(d) go func() { defer log.PanicHandler() for range acct.ticker.C { if !acct.state.Connected { continue } acct.CheckMail() } }() } func (acct *AccountView) closeSplit() { if acct.split != nil { acct.split.Close() } acct.splitSize = 0 acct.splitDir = "" acct.split = nil acct.grid = ui.NewGrid().Rows([]ui.GridSpec{ {Strategy: ui.SIZE_WEIGHT, Size: ui.Const(1)}, }).Columns([]ui.GridSpec{ {Strategy: ui.SIZE_EXACT, Size: func() int { return acct.UiConfig().SidebarWidth }}, {Strategy: ui.SIZE_WEIGHT, Size: ui.Const(1)}, }) acct.grid.AddChild(ui.NewBordered(acct.dirlist, ui.BORDER_RIGHT, acct.uiConf)) acct.grid.AddChild(acct.msglist).At(0, 1) ui.Invalidate() } func (acct *AccountView) updateSplitView(msg *models.MessageInfo) { if acct.splitSize == 0 { return } if acct.splitDebounce != nil { acct.splitDebounce.Stop() } fn := func() { if acct.split != nil { acct.split.Close() } lib.NewMessageStoreView(msg, false, acct.Store(), acct.aerc.Crypto, acct.aerc.DecryptKeys, func(view lib.MessageView, err error) { if err != nil { acct.aerc.PushError(err.Error()) return } acct.split = NewMessageViewer(acct, view) switch acct.splitDir { case "split": acct.grid.AddChild(acct.split).At(1, 1) case "vsplit": acct.grid.AddChild(acct.split).At(0, 2) } }) } acct.splitDebounce = time.AfterFunc(100*time.Millisecond, func() { ui.QueueFunc(fn) }) } func (acct *AccountView) SplitSize() int { return acct.splitSize } func (acct *AccountView) SetSplitSize(n int) { if n == 0 { acct.closeSplit() } acct.splitSize = n } // Split splits the message list view horizontally. The message list will be n // rows high. If n is 0, any existing split is removed func (acct *AccountView) Split(n int) error { acct.SetSplitSize(n) if acct.splitDir == "split" || n == 0 { return nil } acct.splitDir = "split" acct.grid = ui.NewGrid().Rows([]ui.GridSpec{ // Add 1 so that the splitSize is the number of visible messages {Strategy: ui.SIZE_EXACT, Size: func() int { return acct.SplitSize() + 1 }}, {Strategy: ui.SIZE_WEIGHT, Size: ui.Const(1)}, }).Columns([]ui.GridSpec{ {Strategy: ui.SIZE_EXACT, Size: func() int { return acct.UiConfig().SidebarWidth }}, {Strategy: ui.SIZE_WEIGHT, Size: ui.Const(1)}, }) acct.grid.AddChild(ui.NewBordered(acct.dirlist, ui.BORDER_RIGHT, acct.uiConf)).Span(2, 1) acct.grid.AddChild(ui.NewBordered(acct.msglist, ui.BORDER_BOTTOM, acct.uiConf)).At(0, 1) acct.split = NewMessageViewer(acct, nil) acct.grid.AddChild(acct.split).At(1, 1) acct.updateSplitView(acct.msglist.Selected()) return nil } // Vsplit splits the message list view vertically. The message list will be n // rows wide. If n is 0, any existing split is removed func (acct *AccountView) Vsplit(n int) error { acct.SetSplitSize(n) if acct.splitDir == "vsplit" || n == 0 { return nil } acct.splitDir = "vsplit" acct.grid = ui.NewGrid().Rows([]ui.GridSpec{ {Strategy: ui.SIZE_WEIGHT, Size: ui.Const(1)}, }).Columns([]ui.GridSpec{ {Strategy: ui.SIZE_EXACT, Size: func() int { return acct.UiConfig().SidebarWidth }}, {Strategy: ui.SIZE_EXACT, Size: acct.SplitSize}, {Strategy: ui.SIZE_WEIGHT, Size: ui.Const(1)}, }) acct.grid.AddChild(ui.NewBordered(acct.dirlist, ui.BORDER_RIGHT, acct.uiConf)).At(0, 0) acct.grid.AddChild(ui.NewBordered(acct.msglist, ui.BORDER_RIGHT, acct.uiConf)).At(0, 1) acct.split = NewMessageViewer(acct, nil) acct.grid.AddChild(acct.split).At(0, 2) acct.updateSplitView(acct.msglist.Selected()) return nil } // setTitle executes the title template and sets the tab title func (acct *AccountView) setTitle() { if acct.tab == nil { return } data := state.NewDataSetter() data.SetAccount(acct.acct) data.SetFolder(acct.Directories().SelectedDirectory()) data.SetRUE(acct.dirlist.List(), acct.dirlist.GetRUECount) var buf bytes.Buffer err := templates.Render(acct.uiConf.TabTitleAccount, &buf, data.Data()) if err != nil { acct.PushError(err) return } acct.tab.SetTitle(buf.String()) }