Add microsoft todo parsing logic

pkg/modules/migration/microsoft-todo/microsoft_todo.go

@@ -71,9 +71,9 @@ type body struct {
 }
 type pattern struct {
 	Type           string   `json:"type"`
-	Interval       int      `json:"interval"`
-	Month          int      `json:"month"`
-	DayOfMonth     int      `json:"dayOfMonth"`
+	Interval       int64    `json:"interval"`
+	Month          int64    `json:"month"`
+	DayOfMonth     int64    `json:"dayOfMonth"`
 	DaysOfWeek     []string `json:"daysOfWeek"`
 	FirstDayOfWeek string   `json:"firstDayOfWeek"`
 	Index          string   `json:"index"`
@@ -110,6 +110,15 @@ type listsResponse struct {
 	Value        []*list `json:"value"`
 }
 
+func (dtt *dateTimeTimeZone) toTime() (t time.Time, err error) {
+	loc, err := time.LoadLocation(dtt.TimeZone)
+	if err != nil {
+		return t, err
+	}
+
+	return time.ParseInLocation(time.RFC3339Nano, dtt.DateTime+"Z", loc)
+}
+
 func (m *Migration) AuthURL() string {
 	return "https://login.microsoftonline.com/common/oauth2/v2.0/authorize" +
 		"?client_id=" + config.MigrationMicrosoftTodoClientID.GetString() +
@@ -219,15 +228,92 @@ func getMicrosoftTodoData(token string) (microsoftTodoData []*list, err error) {
 func convertMicrosoftTodoData(todoData []*list) (vikunjsStructure []*models.NamespaceWithLists, err error) {
 
 	// One namespace with all lists
-	// Lists only with naem
+	vikunjsStructure = []*models.NamespaceWithLists{
+		{
+			Namespace: models.Namespace{
+				Title: "Migrated from Microsoft Todo",
+			},
+			Lists: []*models.List{},
+		},
+	}
 
-	// Title
-	// Description
-	// Done Status
-	// Priority
-	// Reminders
-	// Due Date
-	// Repeating
+	for _, l := range todoData {
+
+		// Lists only with title
+		list := &models.List{
+			Title: l.DisplayName,
+		}
+
+		for _, t := range l.Tasks {
+			task := &models.Task{
+				Title: t.Title,
+				Done:  t.Status == "completed",
+			}
+
+			// Done Status
+			if task.Done {
+				task.DoneAt, err = t.CompletedDateTime.toTime()
+				if err != nil {
+					return
+				}
+			}
+
+			// Description
+			if t.Body != nil && t.Body.ContentType == "text" {
+				task.Description = t.Body.Content
+			}
+
+			// Priority
+			switch t.Importance {
+			case "low":
+				task.Priority = 1
+			case "normal":
+				task.Priority = 2
+			case "high":
+				task.Priority = 3
+			default:
+				task.Priority = 0
+			}
+
+			// Reminders
+			if t.ReminderDateTime != nil {
+				reminder, err := t.ReminderDateTime.toTime()
+				if err != nil {
+					return nil, err
+				}
+
+				task.Reminders = []time.Time{reminder}
+			}
+
+			// Due Date
+			if t.DueDateTime != nil {
+				dueDate, err := t.DueDateTime.toTime()
+				if err != nil {
+					return nil, err
+				}
+
+				task.DueDate = dueDate
+			}
+
+			// Repeating
+			if t.Recurrence != nil && t.Recurrence.Pattern != nil {
+				switch t.Recurrence.Pattern.Type {
+				case "daily":
+					task.RepeatAfter = t.Recurrence.Pattern.Interval * 60 * 60 * 24
+				case "weekly":
+					task.RepeatAfter = t.Recurrence.Pattern.Interval * 60 * 60 * 24 * 7
+				case "monthly":
+					task.RepeatAfter = t.Recurrence.Pattern.Interval * 60 * 60 * 24 * 30
+				case "yearly":
+					task.RepeatAfter = t.Recurrence.Pattern.Interval * 60 * 60 * 24 * 365
+				}
+			}
+
+			list.Tasks = append(list.Tasks, task)
+		}
+
+		vikunjsStructure[0].Lists = append(vikunjsStructure[0].Lists, list)
+	}
 
 	return
 }