//go:build notmuch
// +build notmuch
package lib
import (
"context"
"errors"
"fmt"
"git.sr.ht/~rjarry/aerc/lib/log"
"git.sr.ht/~rjarry/aerc/lib/notmuch"
"git.sr.ht/~rjarry/aerc/models"
"git.sr.ht/~rjarry/aerc/worker/types"
)
type DB struct {
path string
excludedTags []string
db *notmuch.Database
}
func NewDB(path string, excludedTags []string) *DB {
nm := ¬much.Database{
Path: path,
}
db := &DB{
path: path,
excludedTags: excludedTags,
db: nm,
}
return db
}
func (db *DB) Connect() error {
return db.db.Open(notmuch.MODE_READ_ONLY)
}
func (db *DB) Close() error {
return db.db.Close()
}
// Returns the DB path
func (db *DB) Path() string {
return db.db.ResolvedPath()
}
// ListTags lists all known tags
func (db *DB) ListTags() []string {
return db.db.Tags()
}
// State returns the lastmod of the database. This is a uin64 which is
// incremented with every modification
func (db *DB) State() uint64 {
_, lastmod := db.db.Revision()
return lastmod
}
// getQuery returns a query based on the provided query string.
// It also configures the query as specified on the worker
func (db *DB) newQuery(query string) (*notmuch.Query, error) {
q, err := db.db.Query(query)
if err != nil {
return nil, err
}
q.Exclude(notmuch.EXCLUDE_ALL)
q.Sort(notmuch.SORT_OLDEST_FIRST)
for _, t := range db.excludedTags {
err := q.ExcludeTag(t)
// do not treat STATUS_IGNORED as an error; this allows explicit
// searches using tags that are excluded by default
if err != nil && !errors.Is(err, notmuch.STATUS_IGNORED) {
return nil, err
}
}
return &q, nil
}
func (db *DB) MsgIDFromFilename(filename string) (string, error) {
msg, err := db.db.FindMessageByFilename(filename)
if err != nil {
return "", err
}
defer msg.Close()
return msg.ID(), nil
}
func (db *DB) MsgIDsFromQuery(ctx context.Context, q string) ([]string, error) {
query, err := db.newQuery(q)
if err != nil {
return nil, err
}
defer query.Close()
messages, err := query.Messages()
if err != nil {
return nil, err
}
defer messages.Close()
var msgIDs []string
for messages.Next() {
select {
case <-ctx.Done():
return nil, context.Canceled
default:
msg := messages.Message()
defer msg.Close()
msgIDs = append(msgIDs, msg.ID())
}
}
return msgIDs, err
}
func (db *DB) ThreadsFromQuery(ctx context.Context, q string, entireThread bool) ([]*types.Thread, error) {
query, err := db.newQuery(q)
if err != nil {
return nil, err
}
defer query.Close()
// To get proper ordering of threads, we always sort newest first
query.Sort(notmuch.SORT_NEWEST_FIRST)
threads, err := query.Threads()
if err != nil {
return nil, err
}
n, err := query.CountMessages()
if err != nil {
return nil, err
}
defer threads.Close()
res := make([]*types.Thread, 0, n)
for threads.Next() {
select {
case <-ctx.Done():
return nil, context.Canceled
default:
thread := threads.Thread()
tlm := thread.TopLevelMessages()
root := db.makeThread(nil, &tlm, entireThread)
if len(root) > 1 {
root[0].Dummy = true
fc := &(root[0].FirstChild)
for ; *fc != nil; fc = &((*fc).NextSibling) {
}
*fc = root[0].NextSibling
root[0].NextSibling.PrevSibling = nil
root[0].NextSibling = nil
for i := 1; i < len(root); i++ {
root[i].Parent = root[0]
}
res = append(res, root[0])
} else {
res = append(res, root...)
}
tlm.Close()
thread.Close()
}
}
// Reverse the slice
for i, j := 0, len(res)-1; i < j; i, j = i+1, j-1 {
res[i], res[j] = res[j], res[i]
}
return res, err
}
type MessageCount struct {
Exists int
Unread int
}
func (db *DB) QueryCountMessages(q string) (MessageCount, error) {
count := MessageCount{}
query, err := db.newQuery(q)
if err != nil {
return count, err
}
defer query.Close()
count.Exists, err = query.CountMessages()
if err != nil {
return count, err
}
unreadQuery, err := db.newQuery(AndQueries(q, "tag:unread"))
if err != nil {
return count, err
}
defer unreadQuery.Close()
count.Unread, err = unreadQuery.CountMessages()
if err != nil {
return count, err
}
return count, nil
}
func (db *DB) MsgFilename(key string) (string, error) {
msg, err := db.db.FindMessageByID(key)
if err != nil {
return "", err
}
defer msg.Close()
return msg.Filename(), nil
}
func (db *DB) MsgTags(key string) ([]string, error) {
msg, err := db.db.FindMessageByID(key)
if err != nil {
return nil, err
}
defer msg.Close()
return msg.Tags(), nil
}
func (db *DB) MsgFilenames(key string) ([]string, error) {
msg, err := db.db.FindMessageByID(key)
if err != nil {
return nil, err
}
defer msg.Close()
return msg.Filenames(), nil
}
func (db *DB) DeleteMessage(filename string) error {
err := db.db.Reopen(notmuch.MODE_READ_WRITE)
if err != nil {
return err
}
defer func() {
if err := db.db.Reopen(notmuch.MODE_READ_ONLY); err != nil {
log.Errorf("couldn't reopen: %s", err)
}
}()
err = db.db.BeginAtomic()
if err != nil {
return err
}
defer func() {
if err := db.db.EndAtomic(); err != nil {
log.Errorf("couldn't end atomic: %s", err)
}
}()
err = db.db.RemoveFile(filename)
if err != nil && !errors.Is(err, notmuch.STATUS_DUPLICATE_MESSAGE_ID) {
return err
}
return nil
}
func (db *DB) IndexFile(filename string) (string, error) {
err := db.db.Reopen(notmuch.MODE_READ_WRITE)
if err != nil {
return "", err
}
defer func() {
if err := db.db.Reopen(notmuch.MODE_READ_ONLY); err != nil {
log.Errorf("couldn't reopen: %s", err)
}
}()
err = db.db.BeginAtomic()
if err != nil {
return "", err
}
defer func() {
if err := db.db.EndAtomic(); err != nil {
log.Errorf("couldn't end atomic: %s", err)
}
}()
msg, err := db.db.IndexFile(filename)
if err != nil {
return "", err
}
defer msg.Close()
return msg.ID(), nil
}
func (db *DB) MsgModifyTags(key string, add, remove []string) error {
err := db.db.Reopen(notmuch.MODE_READ_WRITE)
if err != nil {
return err
}
defer func() {
if err := db.db.Reopen(notmuch.MODE_READ_ONLY); err != nil {
log.Errorf("couldn't reopen: %s", err)
}
}()
err = db.db.BeginAtomic()
if err != nil {
return err
}
defer func() {
if err := db.db.EndAtomic(); err != nil {
log.Errorf("couldn't end atomic: %s", err)
}
}()
msg, err := db.db.FindMessageByID(key)
if err != nil {
return err
}
defer msg.Close()
for _, tag := range add {
err := msg.AddTag(tag)
if err != nil {
log.Warnf("failed to add tag: %v", err)
}
}
for _, tag := range remove {
err := msg.RemoveTag(tag)
if err != nil {
log.Warnf("failed to add tag: %v", err)
}
}
return msg.SyncTagsToMaildirFlags()
}
func (db *DB) makeThread(parent *types.Thread, msgs *notmuch.Messages, threadContext bool) []*types.Thread {
var siblings []*types.Thread
for msgs.Next() {
msg := msgs.Message()
defer msg.Close()
msgID := msg.ID()
match, err := msg.Flag(notmuch.MESSAGE_FLAG_MATCH)
if err != nil {
log.Errorf("%s", err)
continue
}
replies := msg.Replies()
defer replies.Close()
if !match && !threadContext {
siblings = append(siblings, db.makeThread(parent, &replies, threadContext)...)
continue
}
node := &types.Thread{
Uid: models.UID(msgID),
Parent: parent,
}
switch threadContext {
case true:
node.Context = !match
default:
if match {
node.Hidden = 0
} else {
node.Hidden = 1
}
}
if parent != nil && parent.FirstChild == nil {
parent.FirstChild = node
}
siblings = append(siblings, node)
db.makeThread(node, &replies, threadContext)
}
for i := 1; i < len(siblings); i++ {
siblings[i-1].NextSibling = siblings[i]
}
return siblings
}
func AndQueries(q1, q2 string) string {
if q1 == "" {
return q2
}
if q2 == "" {
return q1
}
if q1 == "*" {
return q2
}
if q2 == "*" {
return q1
}
return fmt.Sprintf("(%s) and (%s)", q1, q2)
}
