more fluent sync

cmd/android-app/component/tasks.go

@@ -71,18 +71,18 @@ func (t *Tasks) Sync() (int, int, error) {
 		return 0, 0, err
 	}
 
-	latestFetch, err := t.local.LatestSync()
+	latestFetch, latestDisp, err := t.local.LatestSyncs()
 	if err != nil {
 		return 0, 0, err
 	}
 	// use unix timestamp for time comparison, because time.Before and
-	// time.After depend on a monotonic clock and in Android the
+	// time.After depend on a monotonic clock and on my phone the
-	// monotonic clock stops ticking if the phone is in suspended sleep
+	// monotonic clock stops ticking when it goes to suspended sleep
-	if latestFetch.Add(15*time.Minute).Unix() > time.Now().Unix() {
+	if latestFetch.Add(15*time.Minute).Unix() > time.Now().Unix() || latestDisp.Add(2*time.Minute).Unix() > time.Now().Unix() {
 		return countDisp, 0, nil
 	}
 
-	res, err := process.NewFetch(t.remote, t.local).Process()
+	res, err := process.NewFetch(t.remote, t.local, task.FOLDER_PLANNED).Process()
 	if err != nil {
 		return countDisp, 0, err
 	}

cmd/cli/command/sync.go

@@ -17,6 +17,8 @@ type Sync struct {
 	sender        *process.Send
 	fetchInterval time.Duration
 	fetchLatest   time.Time
+	dispInterval  time.Duration
+	dispLatest    time.Time
 }
 
 func NewSync(conf *configuration.Configuration) (*Sync, error) {
@@ -27,17 +29,20 @@ func NewSync(conf *configuration.Configuration) (*Sync, error) {
 	remote := storage.NewRemoteRepository(mstore.NewIMAP(conf.IMAP()))
 	disp := storage.NewDispatcher(msend.NewSSLSMTP(conf.SMTP()))
 
-	fetchLatest, err := local.LatestSync()
+	fetchLatest, dispLatest, err := local.LatestSyncs()
 	if err != nil {
 		return &Sync{}, err
 	}
 	fetchInterval := 15 * time.Minute // not yet configurable
+	dispInterval := 2 * time.Minute
 
 	return &Sync{
 		fetcher:       process.NewFetch(remote, local),
 		sender:        process.NewSend(local, disp),
 		fetchInterval: fetchInterval,
 		fetchLatest:   fetchLatest,
+		dispInterval:  dispInterval,
+		dispLatest:    dispLatest,
 	}, nil
 }
 
@@ -46,9 +51,16 @@ func (s *Sync) Do() string {
 	if err != nil {
 		return format.FormatError(err)
 	}
+	if countSend > 0 {
+		return fmt.Sprintf("sent %d tasks, not fetching yet\n", countSend)
+	}
+
+	if time.Now().Before(s.dispLatest.Add(s.dispInterval)) {
+		return "sent 0 tasks, send interval has not passed yet\n"
+	}
 
 	if time.Now().Before(s.fetchLatest.Add(s.fetchInterval)) {
-		return fmt.Sprintf("sent %d tasks, not time to fetch yet\n", countSend)
+		return "sent 0 tasks, fetch interval has not passed yet\n"
 	}
 
 	fResult, err := s.fetcher.Process()
@@ -56,5 +68,5 @@ func (s *Sync) Do() string {
 		return format.FormatError(err)
 	}
 
-	return fmt.Sprintf("sent %d, fetched %d tasks\n", countSend, fResult.Count)
+	return fmt.Sprintf("fetched %d tasks\n", fResult.Count)
 }

internal/process/fetch.go

@@ -17,6 +17,7 @@ var (
 type Fetch struct {
 	remote  *storage.RemoteRepository
 	local   storage.LocalRepository
+	folders []string
 }
 
 type FetchResult struct {
@@ -24,17 +25,22 @@ type FetchResult struct {
 	Count    int    `json:"count"`
 }
 
-func NewFetch(remote *storage.RemoteRepository, local storage.LocalRepository) *Fetch {
+func NewFetch(remote *storage.RemoteRepository, local storage.LocalRepository, folders ...string) *Fetch {
+	if len(folders) == 0 {
+		folders = task.KnownFolders
+	}
+
 	return &Fetch{
 		remote:  remote,
 		local:   local,
+		folders: folders,
 	}
 }
 
 func (s *Fetch) Process() (*FetchResult, error) {
 	start := time.Now()
 	tasks := []*task.Task{}
-	for _, folder := range task.KnownFolders {
+	for _, folder := range s.folders {
 		if folder == task.FOLDER_INBOX {
 			continue
 		}

internal/process/fetch_test.go

@@ -24,31 +24,61 @@ func TestFetchProcess(t *testing.T) {
 		Action:  "action2",
 		Folder:  task.FOLDER_UNPLANNED,
 	}
+	task3 := &task.Task{
+		Id:      "id3",
+		Version: 1,
+		Action:  "action3",
+		Folder:  task.FOLDER_PLANNED,
+	}
 
 	localTask1 := &task.LocalTask{Task: *task1, LocalUpdate: &task.LocalUpdate{}, LocalStatus: task.STATUS_FETCHED}
 	localTask2 := &task.LocalTask{Task: *task2, LocalUpdate: &task.LocalUpdate{}, LocalStatus: task.STATUS_FETCHED}
+	localTask3 := &task.LocalTask{Task: *task3, LocalUpdate: &task.LocalUpdate{}, LocalStatus: task.STATUS_FETCHED}
 
 	mstorer, err := mstore.NewMemory(task.KnownFolders)
 	test.OK(t, err)
 	test.OK(t, mstorer.Add(task1.Folder, task1.FormatSubject(), task1.FormatBody()))
 	test.OK(t, mstorer.Add(task2.Folder, task2.FormatSubject(), task2.FormatBody()))
+	test.OK(t, mstorer.Add(task3.Folder, task3.FormatSubject(), task3.FormatBody()))
 	remote := storage.NewRemoteRepository(mstorer)
 	local := storage.NewMemory()
 
+	t.Run("all", func(t *testing.T) {
 		syncer := process.NewFetch(remote, local)
 		actResult, err := syncer.Process()
 		test.OK(t, err)
-	test.Equals(t, 2, actResult.Count)
+		test.Equals(t, 3, actResult.Count)
 		actTasks, err := local.FindAll()
 		test.OK(t, err)
 		for _, a := range actTasks {
 			a.LocalId = 0
 			a.Message = nil
 		}
-	exp := task.ById([]*task.LocalTask{localTask1, localTask2})
+		exp := task.ById([]*task.LocalTask{localTask1, localTask2, localTask3})
 		sExp := task.ById(exp)
 		sAct := task.ById(actTasks)
 		sort.Sort(sAct)
 		sort.Sort(sExp)
 		test.Equals(t, sExp, sAct)
+	})
+
+	t.Run("planned", func(t *testing.T) {
+		syncer := process.NewFetch(remote, local, task.FOLDER_PLANNED)
+		actResult, err := syncer.Process()
+		test.OK(t, err)
+		test.Equals(t, 1, actResult.Count)
+		actTasks, err := local.FindAll()
+		test.OK(t, err)
+		for _, a := range actTasks {
+			a.LocalId = 0
+			a.Message = nil
+		}
+		exp := task.ById([]*task.LocalTask{localTask3})
+		sExp := task.ById(exp)
+		sAct := task.ById(actTasks)
+		sort.Sort(sAct)
+		sort.Sort(sExp)
+		test.Equals(t, sExp, sAct)
+	})
+
 }

internal/storage/local.go

@@ -13,7 +13,7 @@ var (
 )
 
 type LocalRepository interface {
-	LatestSync() (time.Time, error)
+	LatestSyncs() (time.Time, time.Time, error) // last fetch, last dispatch, err
 	SetTasks(tasks []*task.Task) error
 	FindAll() ([]*task.LocalTask, error)
 	FindById(id string) (*task.LocalTask, error)

internal/storage/memory.go

@@ -10,16 +10,20 @@ import (
 // Memory is an in memory implementation of LocalRepository
 type Memory struct {
 	tasks          map[string]*task.LocalTask
-	latestSync time.Time
+	latestFetch    time.Time
+	latestDispatch time.Time
 }
 
 func NewMemory(initTasks ...*task.Task) *Memory {
 	tasks := map[string]*task.LocalTask{}
+	id := 1
 	for _, t := range initTasks {
 		tasks[t.Id] = &task.LocalTask{
 			Task:        *t,
 			LocalUpdate: &task.LocalUpdate{},
+			LocalId:     id,
 		}
+		id++
 	}
 
 	return &Memory{
@@ -27,8 +31,8 @@ func NewMemory(initTasks ...*task.Task) *Memory {
 	}
 }
 
-func (m *Memory) LatestSync() (time.Time, error) {
+func (m *Memory) LatestSyncs() (time.Time, time.Time, error) {
-	return m.latestSync, nil
+	return m.latestFetch, m.latestDispatch, nil
 }
 
 func (m *Memory) SetTasks(tasks []*task.Task) error {
@@ -43,7 +47,7 @@ func (m *Memory) SetTasks(tasks []*task.Task) error {
 	for _, nt := range newTasks {
 		m.tasks[nt.Id] = nt
 	}
-	m.latestSync = time.Now()
+	m.latestFetch = time.Now()
 
 	return nil
 }
@@ -87,6 +91,7 @@ func (m *Memory) SetLocalUpdate(id string, update *task.LocalUpdate) error {
 func (m *Memory) MarkDispatched(localId int) error {
 	t, _ := m.FindByLocalId(localId)
 	m.tasks[t.Id].LocalStatus = task.STATUS_DISPATCHED
+	m.latestDispatch = time.Now()
 
 	return nil
 }

internal/storage/memory_test.go

@@ -48,16 +48,19 @@ func TestMemory(t *testing.T) {
 	localTask3 := &task.LocalTask{Task: *task3, LocalUpdate: emptyUpdate, LocalStatus: task.STATUS_FETCHED}
 
 	t.Run("sync", func(t *testing.T) {
-		mem := storage.NewMemory()
+		mem := storage.NewMemory(task1)
-		latest, err := mem.LatestSync()
+		latestFetch, latestDisp, err := mem.LatestSyncs()
 		test.OK(t, err)
-		test.Assert(t, latest.IsZero(), "lastest was not zero")
+		test.Assert(t, latestFetch.IsZero(), "latestfetch was not zero")
+		test.Assert(t, latestDisp.IsZero(), "latestdisp  was not zero")
 
 		start := time.Now()
 		test.OK(t, mem.SetTasks(tasks))
-		latest, err = mem.LatestSync()
+		test.OK(t, mem.MarkDispatched(1))
+		latestFetch, latestDisp, err = mem.LatestSyncs()
 		test.OK(t, err)
-		test.Assert(t, latest.After(start), "latest was not after start")
+		test.Assert(t, latestFetch.After(start), "latestfetch was not after start")
+		test.Assert(t, latestDisp.After(start), "latestdisp was not after start")
 	})
 
 	t.Run("findallin", func(t *testing.T) {

internal/storage/sqlite.go

@@ -27,6 +27,9 @@ var sqliteMigrations = []sqliteMigration{
 	`DROP TABLE local_task`,
 	`ALTER TABLE task ADD COLUMN local_status TEXT`,
 	`UPDATE task SET local_status = "fetched"`,
+	`DROP TABLE system`,
+	`CREATE TABLE system ("latest_fetch" INTEGER, "latest_dispatch" INTEGER)`,
+	`INSERT INTO system (latest_fetch, latest_dispatch) VALUES (0, 0)`,
 }
 
 var (
@@ -62,20 +65,20 @@ func NewSqlite(conf *SqliteConfig) (*Sqlite, error) {
 	return s, nil
 }
 
-func (s *Sqlite) LatestSync() (time.Time, error) {
+func (s *Sqlite) LatestSyncs() (time.Time, time.Time, error) {
-	rows, err := s.db.Query(`SELECT strftime('%s', latest_sync) FROM system`)
+	rows, err := s.db.Query(`SELECT strftime('%s', latest_fetch), strftime('%s', latest_dispatch) FROM system`)
 	if err != nil {
-		return time.Time{}, fmt.Errorf("%w: %v", ErrSqliteFailure, err)
+		return time.Time{}, time.Time{}, fmt.Errorf("%w: %v", ErrSqliteFailure, err)
 	}
 	defer rows.Close()
 
 	rows.Next()
-	var latest int64
+	var latest_fetch, latest_dispatch int64
-	if err := rows.Scan(&latest); err != nil {
+	if err := rows.Scan(&latest_fetch, &latest_dispatch); err != nil {
-		return time.Time{}, fmt.Errorf("%w: %v", ErrSqliteFailure, err)
+		return time.Time{}, time.Time{}, fmt.Errorf("%w: %v", ErrSqliteFailure, err)
 	}
 
-	return time.Unix(latest, 0), nil
+	return time.Unix(latest_fetch, 0), time.Unix(latest_dispatch, 0), nil
 }
 
 func (s *Sqlite) SetTasks(tasks []*task.Task) error {
@@ -112,7 +115,7 @@ VALUES
 		}
 	}
 
-	if _, err := s.db.Exec(`UPDATE system SET latest_sync=DATETIME('now')`); err != nil {
+	if _, err := s.db.Exec(`UPDATE system SET latest_fetch=DATETIME('now')`); err != nil {
 		return fmt.Errorf("%w: %v", ErrSqliteFailure, err)
 	}
 
@@ -221,6 +224,13 @@ SET local_status = ?
 WHERE local_id = ?`, task.STATUS_DISPATCHED, localId); err != nil {
 		return fmt.Errorf("%w: %v", ErrSqliteFailure, err)
 	}
+
+	if _, err := s.db.Exec(`
+UPDATE system
+SET latest_dispatch=DATETIME('now')`); err != nil {
+		return fmt.Errorf("%w: %v", ErrSqliteFailure, err)
+	}
+
 	return nil
 }