Add basic trello migration structure

pkg/modules/migration/trello/trello.go

@@ -0,0 +1,63 @@
+// Vikunja is a to-do list application to facilitate your life.
+// Copyright 2018-2020 Vikunja and contributors. All rights reserved.
+//
+// This program is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+//
+// This program is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License
+// along with this program.  If not, see <https://www.gnu.org/licenses/>.
+
+package trello
+
+import "code.vikunja.io/api/pkg/user"
+
+type Migration struct {
+}
+
+// Name is used to get the name of the trello migration - we're using the docs here to annotate the status route.
+// @Summary Get migration status
+// @Description Returns if the current user already did the migation or not. This is useful to show a confirmation message in the frontend if the user is trying to do the same migration again.
+// @tags migration
+// @Produce json
+// @Security JWTKeyAuth
+// @Success 200 {object} migration.Status "The migration status"
+// @Failure 500 {object} models.Message "Internal server error"
+// @Router /migration/trello/status [get]
+func (m *Migration) Name() string {
+	return "trello"
+}
+
+// AuthURL returns the url users need to authenticate against
+// @Summary Get the auth url from trello
+// @Description Returns the auth url where the user needs to get its auth code. This code can then be used to migrate everything from trello to Vikunja.
+// @tags migration
+// @Produce json
+// @Security JWTKeyAuth
+// @Success 200 {object} handler.AuthURL "The auth url."
+// @Failure 500 {object} models.Message "Internal server error"
+// @Router /migration/trello/auth [get]
+func (m *Migration) AuthURL() string {
+	panic("implement me")
+}
+
+// Migrate gets all tasks from trello for a user and puts them into vikunja
+// @Summary Migrate all lists, tasks etc. from trello
+// @Description Migrates all projects, tasks, notes, reminders, subtasks and files from trello to vikunja.
+// @tags migration
+// @Accept json
+// @Produce json
+// @Security JWTKeyAuth
+// @Param migrationCode body trello.Migration true "The auth code previously obtained from the auth url. See the docs for /migration/trello/auth."
+// @Success 200 {object} models.Message "A message telling you everything was migrated successfully."
+// @Failure 500 {object} models.Message "Internal server error"
+// @Router /migration/trello/migrate [post]
+func (m *Migration) Migrate(user *user.User) error {
+	panic("implement me")
+}