package main

import (
	"fmt"
	"git.sch9.ru/new_gate/ms-auth/config"
	sessionsDelivery "git.sch9.ru/new_gate/ms-auth/internal/sessions/delivery/grpc"
	sessionsRepository "git.sch9.ru/new_gate/ms-auth/internal/sessions/repository"
	sessionsUseCase "git.sch9.ru/new_gate/ms-auth/internal/sessions/usecase"
	usersDelivery "git.sch9.ru/new_gate/ms-auth/internal/users/delivery/grpc"
	usersRepository "git.sch9.ru/new_gate/ms-auth/internal/users/repository"
	usersUseCase "git.sch9.ru/new_gate/ms-auth/internal/users/usecase"
	"git.sch9.ru/new_gate/ms-auth/pkg/external/postgres"
	"git.sch9.ru/new_gate/ms-auth/pkg/external/valkey"
	"github.com/ilyakaznacheev/cleanenv"
	_ "github.com/jackc/pgx/v5/stdlib"
	"go.uber.org/zap"
	"google.golang.org/grpc"
	"google.golang.org/grpc/reflection"
	"net"
	"os"
	"os/signal"
	"syscall"
)

func main() {
	var cfg config.Config
	err := cleanenv.ReadConfig(".env", &cfg)
	if err != nil {
		panic(fmt.Sprintf("error reading config: %s", err.Error()))
	}

	var logger *zap.Logger
	if cfg.Env == "prod" {
		logger = zap.Must(zap.NewProduction())
	} else if cfg.Env == "dev" {
		logger = zap.Must(zap.NewDevelopment())
	} else {
		panic(fmt.Sprintf(`error reading config: env expected "prod" or "dev", got "%s"`, cfg.Env))
	}

	db, err := postgres.NewPostgresDB(cfg.PostgresDSN)
	if err != nil {
		panic(err)
	}
	defer db.Close()

	vk, err := valkey.NewValkeyClient(cfg.RedisDSN)

	userRepo := usersRepository.NewUserRepository(db, logger)
	userUC := usersUseCase.NewUseCase(userRepo, nil, cfg)

	sessionRepo := sessionsRepository.NewValkeyRepository(vk, cfg, logger)
	sessionUC := sessionsUseCase.NewUseCase(sessionRepo, cfg)

	gserver := grpc.NewServer(grpc.UnaryInterceptor(usersDelivery.TokenInterceptor(sessionUC)))
	defer gserver.GracefulStop()

	usersDelivery.NewUserHandlers(gserver, userUC)
	sessionsDelivery.NewSessionHandlers(gserver, sessionUC, userUC)
	reflection.Register(gserver)

	ln, err := net.Listen("tcp", cfg.Address)
	if err != nil {
		panic(err)
	}

	go func() {
		if err = gserver.Serve(ln); err != nil {
			panic(err)
		}
	}()

	stop := make(chan os.Signal, 1)
	signal.Notify(stop, syscall.SIGTERM, syscall.SIGINT)

	<-stop
}