Restructured code, moved all modules into internal

For now all modules are considered internal. This might change later

internal/storage/database.go

@@ -0,0 +1,108 @@
+/*
+Copyright © 2023 Philipp Wolfer <phw@uploadedlobster.com>
+
+This file is part of Scotty.
+
+Scotty 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.
+
+Scotty 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
+Scotty. If not, see <https://www.gnu.org/licenses/>.
+*/
+
+package storage
+
+import (
+	"encoding/json"
+	"log"
+	"os"
+	"time"
+
+	"github.com/glebarez/sqlite"
+	"golang.org/x/oauth2"
+	"gorm.io/datatypes"
+	"gorm.io/gorm"
+	"gorm.io/gorm/clause"
+	"gorm.io/gorm/logger"
+)
+
+type Database struct {
+	db *gorm.DB
+}
+
+func New(dsn string) (db Database, err error) {
+	newLogger := logger.New(
+		log.New(os.Stderr, "\r\n", log.LstdFlags),
+		logger.Config{
+			LogLevel: logger.Error, // Log level Info will output everything
+		},
+	)
+	gornDb, err := gorm.Open(sqlite.Open(dsn), &gorm.Config{Logger: newLogger})
+	if err != nil {
+		return
+	}
+
+	db.db = gornDb
+
+	// Migrate the schema
+	err = gornDb.AutoMigrate(&ImportTimestamp{}, &OAuth2Token{})
+	return
+}
+
+func (db Database) GetImportTimestamp(source string, target string, entity string) (time.Time, error) {
+	result := ImportTimestamp{
+		SourceService: source,
+		TargetService: target,
+		Entity:        entity,
+	}
+	err := db.db.Limit(1).Find(&result).Error
+	return result.Timestamp, err
+}
+
+func (db Database) SetImportTimestamp(source string, target string, entity string, timestamp time.Time) error {
+	entry := ImportTimestamp{
+		SourceService: source,
+		TargetService: target,
+		Entity:        entity,
+		Timestamp:     timestamp,
+	}
+	err := db.db.Clauses(clause.OnConflict{
+		DoUpdates: clause.AssignmentColumns([]string{"timestamp", "updated_at"}),
+	}).Create(&entry).Error
+	return err
+}
+
+func (db Database) GetOAuth2Token(service string) (*oauth2.Token, error) {
+	result := OAuth2Token{
+		Service: service,
+	}
+	err := db.db.Limit(1).Find(&result).Error
+	if err != nil {
+		return nil, err
+	}
+	token := oauth2.Token{}
+	if result.Token != nil {
+		err = json.Unmarshal(result.Token, &token)
+	}
+	return &token, err
+}
+
+func (db Database) SetOAuth2Token(service string, token *oauth2.Token) error {
+	jsonTok, err := json.Marshal(token)
+	if err != nil {
+		return err
+	}
+	entry := OAuth2Token{
+		Service: service,
+		Token:   datatypes.JSON(jsonTok),
+	}
+	err = db.db.Clauses(clause.OnConflict{
+		DoUpdates: clause.AssignmentColumns([]string{"token", "updated_at"}),
+	}).Create(&entry).Error
+	return err
+}