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|
package compose
import (
"io"
"io/ioutil"
"time"
"github.com/miolini/datacounter"
"github.com/pkg/errors"
"git.sr.ht/~sircmpwn/aerc/models"
"git.sr.ht/~sircmpwn/aerc/widgets"
"git.sr.ht/~sircmpwn/aerc/worker/types"
)
type Postpone struct{}
func init() {
register(Postpone{})
}
func (Postpone) Aliases() []string {
return []string{"postpone"}
}
func (Postpone) Complete(aerc *widgets.Aerc, args []string) []string {
return nil
}
func (Postpone) Execute(aerc *widgets.Aerc, args []string) error {
if len(args) != 1 {
return errors.New("Usage: postpone")
}
composer, _ := aerc.SelectedTab().(*widgets.Composer)
config := composer.Config()
if config.Postpone == "" {
return errors.New("No Postpone location configured")
}
aerc.Logger().Println("Postponing mail")
header, _, err := composer.PrepareHeader()
if err != nil {
return errors.Wrap(err, "PrepareHeader")
}
header.SetContentType("text/plain", map[string]string{"charset": "UTF-8"})
header.Set("Content-Transfer-Encoding", "quoted-printable")
worker := composer.Worker()
dirs := aerc.SelectedAccount().Directories().List()
alreadyCreated := false
for _, dir := range dirs {
if dir == config.Postpone {
alreadyCreated = true
break
}
}
errChan := make(chan string)
// run this as a goroutine so we can make other progress. The message
// will be saved once the directory is created.
go func() {
errStr := <-errChan
if errStr != "" {
aerc.PushError(" " + errStr)
return
}
aerc.RemoveTab(composer)
ctr := datacounter.NewWriterCounter(ioutil.Discard)
err = composer.WriteMessage(header, ctr)
if err != nil {
aerc.PushError(errors.Wrap(err, "WriteMessage").Error())
composer.Close()
return
}
nbytes := int(ctr.Count())
r, w := io.Pipe()
worker.PostAction(&types.AppendMessage{
Destination: config.Postpone,
Flags: []models.Flag{models.SeenFlag},
Date: time.Now(),
Reader: r,
Length: int(nbytes),
}, func(msg types.WorkerMessage) {
switch msg := msg.(type) {
case *types.Done:
aerc.PushStatus("Message postponed.")
r.Close()
composer.Close()
case *types.Error:
aerc.PushError(" " + msg.Error.Error())
r.Close()
composer.Close()
}
})
composer.WriteMessage(header, w)
w.Close()
}()
if !alreadyCreated {
// to synchronise the creating of the directory
worker.PostAction(&types.CreateDirectory{
Directory: config.Postpone,
}, func(msg types.WorkerMessage) {
switch msg := msg.(type) {
case *types.Done:
errChan <- ""
case *types.Error:
errChan <- msg.Error.Error()
}
})
} else {
errChan <- ""
}
return nil
}
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