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//+build notmuch
package notmuch
import (
"bytes"
"fmt"
"io"
"io/ioutil"
"os"
"git.sr.ht/~sircmpwn/aerc/models"
"git.sr.ht/~sircmpwn/aerc/worker/lib"
notmuch "git.sr.ht/~sircmpwn/aerc/worker/notmuch/lib"
"github.com/emersion/go-message"
_ "github.com/emersion/go-message/charset"
)
type Message struct {
uid uint32
key string
db *notmuch.DB
}
// NewReader reads a message into memory and returns an io.Reader for it.
func (m *Message) NewReader() (io.Reader, error) {
name, err := m.Filename()
if err != nil {
return nil, err
}
f, err := os.Open(name)
if err != nil {
return nil, err
}
defer f.Close()
b, err := ioutil.ReadAll(f)
if err != nil {
return nil, err
}
return bytes.NewReader(b), nil
}
// MessageInfo populates a models.MessageInfo struct for the message.
func (m *Message) MessageInfo() (*models.MessageInfo, error) {
return lib.MessageInfo(m)
}
// NewBodyPartReader creates a new io.Reader for the requested body part(s) of
// the message.
func (m *Message) NewBodyPartReader(requestedParts []int) (io.Reader, error) {
name, err := m.Filename()
if err != nil {
return nil, err
}
f, err := os.Open(name)
if err != nil {
return nil, err
}
defer f.Close()
msg, err := message.Read(f)
if err != nil {
return nil, fmt.Errorf("could not read message: %v", err)
}
return lib.FetchEntityPartReader(msg, requestedParts)
}
// SetFlag adds or removes a flag from the message.
// Notmuch doesn't support all the flags, and for those this errors.
func (m *Message) SetFlag(flag models.Flag, enable bool) error {
// Translate the flag into a notmuch tag, ignoring no-op flags.
var tag string
switch flag {
case models.SeenFlag:
// Note: Inverted properly later
tag = "unread"
case models.AnsweredFlag:
tag = "replied"
case models.FlaggedFlag:
tag = "flagged"
default:
return fmt.Errorf("Notmuch doesn't support flag %v", flag)
}
// Get the current state of the flag.
// Note that notmuch handles models.SeenFlag in an inverted sense.
oldState := false
tags, err := m.Tags()
if err != nil {
return err
}
for _, t := range tags {
if t == tag {
oldState = true
break
}
}
if flag == models.SeenFlag {
oldState = !oldState
}
// Skip if flag already in correct state.
if oldState == enable {
return nil
}
if !enable {
if flag == models.SeenFlag {
return m.AddTag("unread")
} else {
return m.RemoveTag(tag)
}
} else {
if flag == models.SeenFlag {
return m.RemoveTag("unread")
} else {
return m.AddTag(tag)
}
}
}
// MarkAnswered either adds or removes the "replied" tag from the message.
func (m *Message) MarkAnswered(answered bool) error {
return m.SetFlag(models.AnsweredFlag, answered)
}
// MarkRead either adds or removes the maildir.FlagSeen flag from the message.
func (m *Message) MarkRead(seen bool) error {
return m.SetFlag(models.SeenFlag, seen)
}
// tags returns the notmuch tags of a message
func (m *Message) Tags() ([]string, error) {
return m.db.MsgTags(m.key)
}
func (m *Message) Labels() ([]string, error) {
return m.Tags()
}
func (m *Message) ModelFlags() ([]models.Flag, error) {
var flags []models.Flag
seen := true
tags, err := m.Tags()
if err != nil {
return nil, err
}
for _, tag := range tags {
switch tag {
case "replied":
flags = append(flags, models.AnsweredFlag)
case "flagged":
flags = append(flags, models.FlaggedFlag)
case "unread":
seen = false
default:
continue
}
}
if seen {
flags = append(flags, models.SeenFlag)
}
return flags, nil
}
func (m *Message) UID() uint32 {
return m.uid
}
func (m *Message) Filename() (string, error) {
return m.db.MsgFilename(m.key)
}
//AddTag adds a single tag.
//Consider using *Message.ModifyTags for multiple additions / removals
//instead of looping over a tag array
func (m *Message) AddTag(tag string) error {
return m.ModifyTags([]string{tag}, nil)
}
//RemoveTag removes a single tag.
//Consider using *Message.ModifyTags for multiple additions / removals
//instead of looping over a tag array
func (m *Message) RemoveTag(tag string) error {
return m.ModifyTags(nil, []string{tag})
}
func (m *Message) ModifyTags(add, remove []string) error {
return m.db.MsgModifyTags(m.key, add, remove)
}
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