/
queue.go
63 lines (55 loc) · 1.44 KB
/
queue.go
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package mail
import (
"github.com/labstack/gommon/log"
"postgrest-auth/pkg/config"
)
// EmailSendRequest represents a mail sending request
type EmailSendRequest struct {
To string
Title string
Content string
}
// Worker is the struct maintaining worker's state
type Worker struct {
ID int
WorkerQueue chan EmailSendRequest
QuitChan chan bool
sender *sender
logger *log.Logger
}
// NewSenderWorker creates, and returns a new Worker object.
func NewSenderWorker(workerQueue chan EmailSendRequest, config *config.Email, logger *log.Logger) *Worker {
return &Worker{
WorkerQueue: workerQueue,
QuitChan: make(chan bool),
sender: newSender(config),
logger: logger,
}
}
// Start launches the worker by starting a goroutine
func (w *Worker) Start() {
go func() {
for {
select {
case work := <-w.WorkerQueue:
// Receive a work request.
w.logger.Info("worker: Received email sending request \n")
err := w.sender.sendEmail(work.To, work.Title, work.Content)
if err != nil {
w.logger.Errorf("An error occurred while sending email: %v \n", err.Error())
}
case <-w.QuitChan:
// We have been asked to stop.
w.logger.Info("Stopping worker ...\n")
return
}
}
}()
}
// Stop tells the worker to stop listening for work requests.
// Note that the worker will only stop *after* it has finished its work.
func (w *Worker) Stop() {
go func() {
w.QuitChan <- true
}()
}