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package msg
import (
"errors"
"git.sr.ht/~sircmpwn/aerc/lib"
"git.sr.ht/~sircmpwn/aerc/models"
"git.sr.ht/~sircmpwn/aerc/widgets"
"git.sr.ht/~sircmpwn/aerc/worker/types"
)
type Delete struct{}
func init() {
register(Delete{})
}
func (Delete) Aliases() []string {
return []string{"delete", "delete-message"}
}
func (Delete) Complete(aerc *widgets.Aerc, args []string) []string {
return nil
}
func (Delete) Execute(aerc *widgets.Aerc, args []string) error {
if len(args) != 1 {
return errors.New("Usage: :delete")
}
h := newHelper(aerc)
store, err := h.store()
if err != nil {
return err
}
uids, err := h.markedOrSelectedUids()
if err != nil {
return err
}
acct, err := h.account()
if err != nil {
return err
}
store.Delete(uids, func(msg types.WorkerMessage) {
switch msg := msg.(type) {
case *types.Done:
aerc.PushStatus("Messages deleted.")
case *types.Error:
aerc.PushError(" " + msg.Error.Error())
}
})
//caution, can be nil
next := findNextNonDeleted(uids, store)
mv, isMsgView := h.msgProvider.(*widgets.MessageViewer)
if isMsgView {
if !aerc.Config().Ui.NextMessageOnDelete {
aerc.RemoveTab(h.msgProvider)
} else {
// no more messages in the list
if next == nil {
aerc.RemoveTab(h.msgProvider)
acct.Messages().Scroll()
return nil
}
lib.NewMessageStoreView(next, store, aerc.DecryptKeys,
func(view lib.MessageView, err error) {
if err != nil {
aerc.PushError(err.Error())
return
}
nextMv := widgets.NewMessageViewer(acct, aerc.Config(), view)
aerc.ReplaceTab(mv, nextMv, next.Envelope.Subject)
})
}
}
acct.Messages().Scroll()
return nil
}
func findNextNonDeleted(deleted []uint32, store *lib.MessageStore) *models.MessageInfo {
selected := store.Selected()
if !contains(deleted, selected.Uid) {
return selected
}
for {
store.Next()
next := store.Selected()
if next == selected || next == nil {
// the last message is in the deleted state or doesn't exist
return nil
}
return next
}
return nil // Never reached
}
func contains(uids []uint32, uid uint32) bool {
for _, item := range uids {
if item == uid {
return true
}
}
return false
}
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