mirror of
https://github.com/chuot/rdio-scanner.git
synced 2026-08-13 16:33:01 -06:00
106 lines
2.4 KiB
Go
106 lines
2.4 KiB
Go
// Copyright (C) 2019-2022 Chrystian Huot <chrystian.huot@saubeo.solutions>
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//
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// This program is free software: you can redistribute it and/or modify
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// it under the terms of the GNU General Public License as published by
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// the Free Software Foundation, either version 3 of the License, or
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// (at your option) any later version.
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//
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// This program is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU General Public License for more details.
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//
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// You should have received a copy of the GNU General Public License
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// along with this program. If not, see <http://www.gnu.org/licenses/>
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package main
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import (
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"errors"
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"fmt"
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"sync"
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"time"
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)
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type Scheduler struct {
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Controller *Controller
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Ticker *time.Ticker
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cancel chan any
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mutex sync.Mutex
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started bool
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}
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func NewScheduler(controller *Controller) *Scheduler {
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return &Scheduler{
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Controller: controller,
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cancel: make(chan any),
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}
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}
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func (scheduler *Scheduler) pruneDatabase() error {
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if scheduler.Controller.Options.PruneDays == 0 {
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return nil
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}
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scheduler.Controller.Logs.LogEvent(LogLevelInfo, "database pruning")
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if err := scheduler.Controller.Calls.Prune(scheduler.Controller.Database, scheduler.Controller.Options.PruneDays); err != nil {
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return err
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}
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if err := scheduler.Controller.Logs.Prune(scheduler.Controller.Database, scheduler.Controller.Options.PruneDays); err != nil {
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return err
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}
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return nil
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}
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func (scheduler *Scheduler) run() {
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scheduler.mutex.Lock()
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defer scheduler.mutex.Unlock()
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logError := func(err error) {
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scheduler.Controller.Logs.LogEvent(LogLevelError, fmt.Sprintf("scheduler.run: %s", err.Error()))
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}
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if err := scheduler.pruneDatabase(); err != nil {
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logError(err)
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}
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}
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func (scheduler *Scheduler) Start() error {
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if scheduler.started {
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return errors.New("scheduler already started")
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} else {
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scheduler.started = true
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}
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scheduler.Ticker = time.NewTicker(time.Hour)
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go func() {
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for {
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select {
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case <-scheduler.cancel:
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scheduler.Stop()
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return
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case <-scheduler.Ticker.C:
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scheduler.run()
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}
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}
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}()
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return nil
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}
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func (scheduler *Scheduler) Stop() error {
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if !scheduler.started {
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return errors.New("scheduler not started")
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}
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scheduler.Ticker.Stop()
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scheduler.Ticker = nil
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scheduler.started = false
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return nil
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}
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