50 lines
1.2 KiB
Go
50 lines
1.2 KiB
Go
package scrapper
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import (
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"context"
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"errors"
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"github.com/chromedp/chromedp"
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log "github.com/sirupsen/logrus"
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"scrapper-mandarake/internal/common"
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)
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func (s *Scrapper) Start(ctx context.Context, tasksChan <-chan common.Task, resultsChan chan<- common.Result) error {
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if s.goroutinesNumber <= 0 {
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err := errors.New("gorutines num <= 0, abort")
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log.WithError(err).Error(pkgLogHeader)
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return err
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}
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poolCtx, cancel := context.WithCancel(ctx)
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s.poolCancel = cancel
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log.Infof("%v Start handling tasks", pkgLogHeader)
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log.Infof("%v Setting up browser", pkgLogHeader)
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cr, err := s.setupBrowser(poolCtx)
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if err != nil {
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log.WithError(err).Error(pkgLogHeader + logGetPrice + "failed to setup browser")
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return err
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}
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log.WithField("Copyright message", cr).Infof("%v Finished setting up browser.", pkgLogHeader)
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allocCtx, allocCancel := chromedp.NewRemoteAllocator(poolCtx, s.externalBrowser)
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s.allocCancel = allocCancel
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log.Infof("%v processing tasks...", pkgLogHeader)
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s.wg.Add(s.goroutinesNumber)
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for i := 0; i < s.goroutinesNumber; i++ {
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go s.worker(allocCtx, tasksChan, resultsChan)
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}
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return nil
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}
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func (s *Scrapper) Stop() {
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if s.allocCancel != nil {
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s.allocCancel()
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}
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if s.poolCancel != nil {
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s.poolCancel()
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}
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s.wg.Wait()
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}
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