80 lines
1.5 KiB
Go
80 lines
1.5 KiB
Go
package main
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import (
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"context"
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"log"
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"os"
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"os/signal"
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"sync"
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"syscall"
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"github.com/urfave/cli/v2"
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"go.uber.org/zap"
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)
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func serve(cCtx *cli.Context) error {
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ctx, cancel := context.WithCancel(cCtx.Context)
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go func() {
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sig := make(chan os.Signal, 1)
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signal.Notify(sig, syscall.SIGINT, syscall.SIGTERM)
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<-sig
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cancel()
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}()
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rawLogger, err := zap.NewDevelopment()
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if err != nil {
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log.Fatalf("Error initializing logger: %v", err)
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}
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logger = rawLogger.Sugar()
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logger.Info("Running serve command, flags passed:")
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for _, flag := range ServeFlags {
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logger.Infof("-%s %v", flag.Names()[0], cCtx.Value(flag.Names()[0]))
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}
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name := cCtx.String(NameFlag)
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port := cCtx.Int(PortFlag)
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messenger, err := startMessenger(cCtx, name, port)
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if err != nil {
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return err
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}
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defer stopMessenger(messenger)
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// Retrieve for messages
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var wg sync.WaitGroup
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msgCh := make(chan string)
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wg.Add(1)
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go retrieveMessagesLoop(ctx, messenger, RetrieveInterval, msgCh, &wg)
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// Send contact request from Alice to Bob, bob accept the request
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dest := cCtx.String(AddFlag)
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if dest != "" {
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err := sendContactRequest(cCtx, messenger, dest)
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if err != nil {
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return err
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}
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}
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go func() {
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msgID := <-msgCh
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err = sendContactRequestAcceptance(cCtx, messenger, msgID)
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if err != nil {
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logger.Error(err)
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return
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}
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}()
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// Send message if mutual contact exists
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sem := make(chan struct{}, 1)
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wg.Add(1)
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go sendMessageLoop(ctx, messenger, SendInterval, &wg, sem, cancel)
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wg.Wait()
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logger.Info("Exiting")
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return nil
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}
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