88 lines
2.3 KiB
Go
88 lines
2.3 KiB
Go
package main
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import (
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"context"
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"errors"
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"log/slog"
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"net/http"
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"os"
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"os/signal"
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"syscall"
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"time"
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"calllinesystem/server/internal/config"
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"calllinesystem/server/internal/database"
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"calllinesystem/server/internal/httpapi"
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)
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func main() {
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logger := slog.New(slog.NewJSONHandler(os.Stdout, &slog.HandlerOptions{Level: slog.LevelInfo}))
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slog.SetDefault(logger)
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cfg, err := config.Load()
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if err != nil {
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logger.Error("invalid configuration", "error", err)
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os.Exit(1)
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}
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ctx, stop := signal.NotifyContext(context.Background(), syscall.SIGINT, syscall.SIGTERM)
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defer stop()
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db, err := database.Open(ctx, cfg.DatabaseURL, logger, database.OpenOptions{
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MaxOpenConns: cfg.DBMaxOpenConns, MaxIdleConns: cfg.DBMaxIdleConns,
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ConnMaxIdleTime: cfg.DBConnMaxIdleTime, ConnMaxLifetime: cfg.DBConnMaxLifetime,
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})
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if err != nil {
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logger.Error("database startup failed", "error", err)
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os.Exit(1)
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}
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defer database.Close(db)
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sqlDB, err := database.SQLDB(db)
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if err != nil {
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logger.Error("database handle failed", "error", err)
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os.Exit(1)
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}
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if cfg.MigrateOnStart {
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if err := database.Migrate(ctx, sqlDB, logger); err != nil {
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logger.Error("database migration failed", "error", err)
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os.Exit(1)
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}
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}
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database.StartMaintenance(ctx, sqlDB, logger, cfg.MaintenanceInterval, cfg.MaintenanceBatchSize)
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api, err := httpapi.New(db, cfg, logger)
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if err != nil {
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logger.Error("api startup failed", "error", err)
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os.Exit(1)
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}
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httpServer := &http.Server{
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Addr: cfg.HTTPAddr,
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Handler: api.Handler(),
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ReadHeaderTimeout: 5 * time.Second,
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ReadTimeout: 15 * time.Second,
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IdleTimeout: 60 * time.Second,
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MaxHeaderBytes: 1 << 20,
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}
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serveErr := make(chan error, 1)
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go func() {
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logger.Info("api listening", "addr", cfg.HTTPAddr, "environment", cfg.Environment)
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serveErr <- httpServer.ListenAndServe()
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}()
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select {
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case err := <-serveErr:
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if !errors.Is(err, http.ErrServerClosed) {
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logger.Error("http server failed", "error", err)
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os.Exit(1)
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}
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case <-ctx.Done():
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logger.Info("shutdown requested")
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}
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shutdownCtx, cancel := context.WithTimeout(context.Background(), cfg.ShutdownTimeout)
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defer cancel()
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if err := httpServer.Shutdown(shutdownCtx); err != nil {
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logger.Error("graceful shutdown failed", "error", err)
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_ = httpServer.Close()
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}
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}
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