86 lines
1.7 KiB
Go
86 lines
1.7 KiB
Go
package worker
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import (
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"context"
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"sync"
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"time"
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"github.com/rs/zerolog/log"
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"github.com/TelegramExchange/tgex-parser/internal/usecase"
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)
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type ChannelConfig struct {
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MaxWorkers int `envconfig:"WORKER__MAX_WORKERS" default:"1"`
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ChannelDelay time.Duration `envconfig:"WORKER__CHANNEL_DELAY" default:"500ms"`
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RequestTimeout time.Duration `envconfig:"WORKER__REQUEST_TIMEOUT" default:"10s"`
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MessagesLimit int `envconfig:"WORKER__MESSAGES_LIMIT" default:"20"`
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PollInterval time.Duration `envconfig:"WORKER__POLL_INTERVAL" default:"20s"`
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}
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type ChannelWorker struct {
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usecase *usecase.UseCase
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config ChannelConfig
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stop chan struct{}
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done chan struct{}
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}
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func NewChannelWorker(uc *usecase.UseCase, cfg ChannelConfig) *ChannelWorker {
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w := &ChannelWorker{
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usecase: uc,
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config: cfg,
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stop: make(chan struct{}),
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done: make(chan struct{}),
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}
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go w.run()
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return w
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}
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func (w *ChannelWorker) run() {
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log.Info().Msg("channel worker: started")
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var wg sync.WaitGroup
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wg.Add(w.config.MaxWorkers)
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for range w.config.MaxWorkers {
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go w.spawnWorker(&wg)
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}
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wg.Wait()
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log.Info().Msg("channel worker: stopped")
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close(w.done)
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}
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func (w *ChannelWorker) spawnWorker(wg *sync.WaitGroup) {
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defer wg.Done()
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limiter := time.NewTicker(w.config.ChannelDelay)
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defer limiter.Stop()
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poll := time.NewTicker(w.config.PollInterval)
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defer poll.Stop()
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for {
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select {
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case <-w.stop:
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return
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case <-poll.C:
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err := w.usecase.FetchChannels(context.Background())
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if err != nil {
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log.Error().Err(err).Msg("usecase.FetchChannels error")
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}
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}
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}
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}
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func (w *ChannelWorker) Stop() {
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close(w.stop)
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<-w.done
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}
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