108 lines
2.2 KiB
Go
108 lines
2.2 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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"smpp-transmitter/config"
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"smpp-transmitter/internal/models"
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"smpp-transmitter/pkg/database"
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fl "smpp-transmitter/pkg/logger"
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"smpp-transmitter/pkg/mq"
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"smpp-transmitter/pkg/mq/rabbitmq"
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"syscall"
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"github.com/joho/godotenv"
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"gorm.io/gorm"
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)
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func main() {
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if err := run(); err != nil {
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log.Fatalf("Application error: %v", err)
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}
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}
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func run() error {
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// Load configuration
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cfg, err := loadConfig()
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if err != nil {
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return err
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}
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// Setup logger
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logger, err := fl.SetupLogger(cfg.AppEnv)
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if err != nil {
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return err
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}
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// Initialize database
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db, err := database.InitMYSQL(cfg.MysqlDSN)
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if err != nil {
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logger.Error("Failed to connect to MySQL:", "err", err)
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return err
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}
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// Initialize RabbitMQ consumer
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consumer, err := initRabbitMQConsumer(cfg)
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if err != nil {
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logger.Error("Failed to initialize RabbitMQ consumer:", "err", err)
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return err
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}
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// Start consuming messages
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go startConsuming(consumer, db, logger)
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// Handle graceful shutdown
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waitForShutdown(logger)
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return nil
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}
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func loadConfig() (*config.Config, error) {
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if err := godotenv.Load(); err != nil {
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return nil, err
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}
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return config.NewConfig()
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}
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func initRabbitMQConsumer(cfg *config.Config) (mq.Consumer, error) {
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return rabbitmq.NewRabbitMQConsumer(
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cfg.RabbitMQURL,
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cfg.ExchangeName,
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cfg.QueueName,
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cfg.RoutingKey,
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1,
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), nil
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}
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func startConsuming(consumer mq.Consumer, db *gorm.DB, logger fl.LogService) {
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consumer.Consume(func(ctx context.Context, body []byte) {
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handleMessage(ctx, body, db, logger)
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})
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}
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func handleMessage(ctx context.Context, body []byte, db *gorm.DB, logger fl.LogService) {
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message := &models.Message{}
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if err := message.Convert(body); err != nil {
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logger.Error("Message cannot be converted", "err", err)
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return
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}
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logger.Info(message.Msg, "src", message.Src, "dst", message.Dst)
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if err := message.Insert(ctx, db); err != nil {
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logger.Error("Message cannot be Inserted", "err", err)
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return
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}
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}
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func waitForShutdown(logger fl.LogService) {
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sigs := make(chan os.Signal, 1)
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signal.Notify(sigs, syscall.SIGINT, syscall.SIGTERM)
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<-sigs
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logger.Info("Shutting down...")
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}
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