package app

import (
	"amocrm/internal/controllers"
	"amocrm/internal/initialize"
	"amocrm/internal/repository"
	"amocrm/internal/server/http"
	"amocrm/internal/service"
	"amocrm/pkg/closer"
	"context"
	"errors"
	"time"

	"go.uber.org/zap"
)

func Run(ctx context.Context, config initialize.Config, logger *zap.Logger) error {
	defer func() {
		if r := recover(); r != nil {
			logger.Error("Recovered from a panic", zap.Any("error", r))
		}
	}()

	logger.Info("App started", zap.Any("config", config))

	ctx, cancel := context.WithCancel(ctx)
	defer cancel()

	shutdownGroup := closer.NewCloserGroup()

	mdb, err := initialize.MongoDB(ctx, config)
	if err != nil {
		logger.Error("failed initialize mongo")
		return err
	}

	repo := repository.NewRepository(repository.Deps{
		MdbUser: mdb.Collection("amoUsers"),
	})

	svc := service.NewService(service.Deps{
		Repository:  repo,
		Logger:      logger,
		ConnectLink: config.ConnectLink,
	})

	controller := controllers.NewController(controllers.Deps{
		Service: svc,
		Logger:  logger,
	})

	server := http.NewServer(http.ServerConfig{
		Controllers: []http.Controller{
			controller,
		},
	})

	go func() {
		if err := server.Start(config.HTTPHost + ":" + config.HTTPPort); err != nil {
			logger.Error("Server startup error", zap.Error(err))
			cancel()
		}
	}()

	server.ListRoutes()

	shutdownGroup.Add(closer.CloserFunc(server.Shutdown))
	shutdownGroup.Add(closer.CloserFunc(mdb.Client().Disconnect))

	<-ctx.Done()

	timeoutCtx, timeoutCancel := context.WithTimeout(context.Background(), 10*time.Second)
	defer timeoutCancel()
	if err := shutdownGroup.Call(timeoutCtx); err != nil {
		if errors.Is(err, context.DeadlineExceeded) {
			logger.Error("Shutdown timed out", zap.Error(err))
		} else {
			logger.Error("Failed to shutdown services gracefully", zap.Error(err))
		}
		return err
	}

	logger.Info("Application has stopped")
	return nil
}