package app

import (
	"context"
	"database/sql"
	"fmt"
	"log"
	"time"
	"net/http"

	_ "modernc.org/sqlite"
)

const filePath = "goshare.db"

type App struct {
	router http.Handler
	db *sql.DB
}

func New() *App {
	db, err := sql.Open("sqlite3", filePath)

	if err != nil {
		log.Fatalf("failed to open db: %s", err)
	}

	return &App{
		db: db,
	}
}

func (a *App) Start(ctx context.Context) error {
	server := &http.Server{
		Addr: ":5454",
		Handler: a.router,
	}

	fmt.Println("Starting server")

	ch := make(chan error, 1)

	go func ()  {
		err := server.ListenAndServe()
		if err != nil {
			ch <- fmt.Errorf("failed to start server: %w", err)
		}
		close(ch)
	}()

	select {
	case err := <-ch:
		return err
	case <-ctx.Done():
		timeout, cancel := context.WithTimeout(context.Background(), time.Second*10)
		defer cancel()

		return server.Shutdown(timeout)
	}
}