Moved specifc backends into separate packages

models/interfaces.go

@@ -0,0 +1,53 @@
+/*
+Copyright © 2023 Philipp Wolfer <phw@uploadedlobster.com>
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in
+all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+THE SOFTWARE.
+*/
+package models
+
+import (
+	"time"
+
+	"github.com/spf13/viper"
+)
+
+type Backend interface {
+	FromConfig(config *viper.Viper) Backend
+}
+
+type ListenExport interface {
+	ExportListens(oldestTimestamp time.Time) ([]Listen, error)
+}
+
+type ListenImport interface {
+	ImportListens(listens []Listen, oldestTimestamp time.Time) (ImportResult, error)
+}
+
+type LovesExport interface {
+	ExportLoves(oldestTimestamp time.Time) ([]Love, error)
+}
+
+type LovesImport interface {
+	ImportLoves(loves []Love, oldestTimestamp time.Time) (ImportResult, error)
+}
+
+type ImportResult struct {
+	Count         int
+	LastTimestamp time.Time
+}