Initial importv0.1.0

1 files changed, 50 insertions, 0 deletions

diff --git a/main.go b/main.go
new file mode 100644
index 0000000..36aecab
--- /dev/null
+++ b/main.go
@@ -0,0 +1,50 @@
+// Command cepis-telegram is the official Telegram bot for https://cep.is.
+//
+// It answers a bare CEP in a private chat, "/cep <cep>" in groups and channels,
+// and inline queries anywhere. Updates arrive by long polling, so the process
+// needs no inbound port, no public hostname and no webhook secret.
+//
+// Configuration is environment-only; see the config package.
+package main
+
+import (
+	"context"
+	"errors"
+	"log/slog"
+	"os"
+	"os/signal"
+	"syscall"
+
+	"cep.is/telegrambot/internal/app"
+	"cep.is/telegrambot/internal/config"
+)
+
+func main() {
+	if err := run(); err != nil {
+		slog.New(slog.NewJSONHandler(os.Stdout, nil)).Error("fatal", slog.String("error", err.Error()))
+		os.Exit(1)
+	}
+}
+
+func run() error {
+	cfg, err := config.Load()
+	if err != nil {
+		if errors.Is(err, config.ErrMissingToken) {
+			return errors.New(config.EnvToken + " is required: create a bot with @BotFather and pass its token in the environment")
+		}
+		return err
+	}
+
+	logger := slog.New(slog.NewJSONHandler(os.Stdout, &slog.HandlerOptions{Level: cfg.LogLevel}))
+	slog.SetDefault(logger)
+	logger.Info("configuration loaded", slog.Any("config", cfg))
+
+	ctx, stop := signal.NotifyContext(context.Background(), syscall.SIGINT, syscall.SIGTERM)
+	defer stop()
+
+	application, err := app.New(ctx, cfg, logger)
+	if err != nil {
+		return err
+	}
+	return application.Run(ctx)
+}