/*
Copyright © 2023 Philipp Wolfer <phw@uploadedlobster.com>

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 backends

import (
	"time"

	"go.uploadedlobster.com/scotty/internal/models"
)

type ExportProcessor[T models.ListensResult | models.LovesResult] interface {
	ExportBackend() models.Backend
	Process(oldestTimestamp time.Time, results chan T, progress chan models.Progress)
}

type ListensExportProcessor struct {
	Backend models.ListensExport
}

func (p ListensExportProcessor) ExportBackend() models.Backend {
	return p.Backend
}

func (p ListensExportProcessor) Process(oldestTimestamp time.Time, results chan models.ListensResult, progress chan models.Progress) {
	p.Backend.ExportListens(oldestTimestamp, results, progress)
	close(progress)
}

type LovesExportProcessor struct {
	Backend models.LovesExport
}

func (p LovesExportProcessor) ExportBackend() models.Backend {
	return p.Backend
}

func (p LovesExportProcessor) Process(oldestTimestamp time.Time, results chan models.LovesResult, progress chan models.Progress) {
	p.Backend.ExportLoves(oldestTimestamp, results, progress)
	close(progress)
}