package main

import (
	"database/sql"
	"fmt"
	"html/template"
	"log"
	"net/http"

	//"net/url"

	//"time"

	_ "github.com/mattn/go-sqlite3"
)

//logowanie ------------
var loginFROMsite string
var passwordFROMsite string

//users ---------------
var IDusers int
var User string
var Password string
var PIN int
var RFID int
var Login string
var Blokada bool
var Koszt int

//bilety ---------------
var IDbiletu int
var KtoZabral string
var DataCzas string
var KosztBiletu int
var CzyZaplacony bool

//dania ---------------
var IDdania int
var NazwaDania string
var KosztDania int

//***************************************************************************
//funkcje sterujące
//***************************************************************************
//#############################################################################
func opisStołówkaZPM(w http.ResponseWriter, r *http.Request) {
	t, _ := template.ParseFiles("StronaGlowna.gtpl")
	t.Execute(w, nil)
}

//#############################################################################
func panel(w http.ResponseWriter, r *http.Request) {
	//Here:
	//time.Sleep(3 * time.Second)

	/*
		//bilety ----------------------------------
		db, err := sql.Open("sqlite3", "stolowkaZPM.db")
		checkErr(err)
		rows1, err := db.Query("SELECT * FROM bilety")
		checkErr(err)
		fmt.Fprintf(w, "Lista zabranych biletów: \n")
		for rows1.Next() {
			err = rows1.Scan(&IDbiletu, &KtoZabral, &DataCzas, &KosztBiletu)
			checkErr(err)
			fmt.Printf("%d.  %s, %s, %d \n", IDbiletu, KtoZabral, DataCzas, KosztBiletu)
		}
		//----------------------------------
		//dania ----------------------------------
		rows2, err := db.Query("SELECT * FROM dania")
		checkErr(err)
		fmt.Fprintf(w, "Lista dań: \n")
		for rows2.Next() {
			err = rows2.Scan(&IDdania, &NazwaDania, &KosztDania)
			checkErr(err)
			fmt.Printf("%d. %s, %d \n", IDdania, NazwaDania, KosztDania)
		}
		//----------------------------------
		rows1.Close()
		rows2.Close()
		db.Close()
	*/
	for _, cookie := range r.Cookies() {
		fmt.Fprint(w, cookie.Name)
	}

	fmt.Println("method:", r.Method)
	t, _ := template.ParseFiles("panel.gtpl")
	d := struct {
		UserView string
	}{
		UserView: User}
	t.ExecuteTemplate(w, "panel.gtpl", d)
}

//#############################################################################
func wylogowano(w http.ResponseWriter, r *http.Request) {

	//--------------------------------------------------
	t, _ := template.ParseFiles("wylogowano.gtpl")
	d := struct {
		loginFROMsiteView    string
		passwordFROMsiteView string
		IDusersView          int
		UserView             string
		PasswordView         string
		PINView              int
		RFIDView             int
		LoginView            string
		BlokadaView          bool
		KosztView            int
		IDbiletuView         int
		KtoZabralView        string
		DataCzasView         string
		KosztBiletuView      int
		IDdaniaView          int
		NazwaDaniaView       string
		KosztDaniaView       int
	}{
		loginFROMsiteView:    "",
		passwordFROMsiteView: "",
		IDusersView:          0,
		UserView:             "",
		PasswordView:         "",
		PINView:              0,
		RFIDView:             0,
		LoginView:            "",
		BlokadaView:          Blokada,
		KosztView:            0,
		IDbiletuView:         0,
		KtoZabralView:        "",
		DataCzasView:         "",
		KosztBiletuView:      0,
		IDdaniaView:          0,
		NazwaDaniaView:       "",
		KosztDaniaView:       0}

	t.ExecuteTemplate(w, "wylogowano.gtpl", d)
}

//#############################################################################
func login(w http.ResponseWriter, r *http.Request) {
	//cookies start===================================================================
	type Cookie struct {
		Login    string
		Password string
	}
	//cookies end===================================================================

	loginFROMsite := r.FormValue("loginFROMsite")
	passwordFROMsite := r.FormValue("passwordFROMsite")
	//zaloguj := "Zalogowano!"

	//**************************************************************************
	db, err := sql.Open("sqlite3", "stolowkaZPM.db")
	checkErr(err)
	// query
	rows0, err := db.Query("SELECT * FROM users")
	checkErr(err)

	for rows0.Next() {
		err = rows0.Scan(&IDusers, &User, &Password, &PIN, &RFID, &Login, &Blokada, &Koszt)
		checkErr(err)
		//fmt.Printf("%d.  %s, %s, %d, %d, %s, %d, %d \n", IDusers, User, Password, PIN, RFID, Login, Blokada, Koszt)
		//fmt.Fprint(w, IDusers)
		//fmt.Fprint(w, ".  ")
		//fmt.Fprint(w, User)
		//fmt.Fprint(w, " \n")
		//if r.Method == "POST" {
		if Login == loginFROMsite {
			if Password == passwordFROMsite {
				//fmt.Fprintln(w, zaloguj)
				//fmt.Fprintln(w, usernameFROMsite)
				//time.Sleep(3 * time.Second)
				//if zaloguj == "Zalogowano!"
				http.Redirect(w, r, "http://localhost:9197/panel", http.StatusSeeOther)
				panel(w, r)
				break
			}
		}
		//}
	}

	fmt.Println("method:", r.Method)
	if r.Method == "GET" {
		t, _ := template.ParseFiles("login.gtpl")
		t.Execute(w, nil)
		//} else {
		r.ParseForm()
		//fmt.Println("usernameFROMsite: ", r.Form["usernameFROMsite"])
		//fmt.Println("passwordFROMsite: ", r.Form["passwordFROMsite"])
		//if len(r.Form["usernameFROMsite"][0]) == 0 {
		//	goto Here
		//}
		//if len(r.Form["passwordFROMsite"][0]) == 0 {
		//	goto Here
		//}
	}

	//obsługa blędnego wpisania loginu lub hasła
	if r.Method == "POST" {
		if loginFROMsite != Login {
			if loginFROMsite == "" {
				if passwordFROMsite != Password {
					t, _ := template.ParseFiles("login.gtpl")
					t.Execute(w, nil)
					fmt.Fprint(w, "***  UWAGA!  ***  Błąd logowania! Login lub hasło nieprawidłowe.  ***  Spróbuj ponownie.  ***")
				}
			} else {
				if passwordFROMsite != Password {
					t, _ := template.ParseFiles("login.gtpl")
					t.Execute(w, nil)
					fmt.Fprint(w, "***  UWAGA!  ***  Błąd logowania! Login lub hasło nieprawidłowe.  ***  Spróbuj ponownie.  ***")
				}
			}

		}
	}
	rows0.Close()
	db.Close()
	//**************************************************************************
}

//#############################################################################
func historiaPosilkow(w http.ResponseWriter, r *http.Request) {
	t, _ := template.ParseFiles("historiaPosilkowNaglowek.gtpl")
	d := struct {
		UserView string
	}{
		UserView: User}
	t.ExecuteTemplate(w, "historiaPosilkowNaglowek.gtpl", d)

	//bilety ----------------------------------
	db, err := sql.Open("sqlite3", "stolowkaZPM.db")
	checkErr(err)
	rows3, err := db.Query("SELECT * FROM bilety")
	checkErr(err)
	for rows3.Next() {
		err = rows3.Scan(&IDbiletu, &KtoZabral, &DataCzas, &KosztBiletu, &CzyZaplacony)
		checkErr(err)
		if KtoZabral == User {
			t, _ := template.ParseFiles("historiaPosilkow.gtpl")
			d := struct {
				IDbiletuView     int
				KtoZabralView    string
				DataCzasView     string
				KosztBiletuView  int
				CzyZaplaconyView bool
			}{
				IDbiletuView:     IDbiletu,
				KtoZabralView:    KtoZabral,
				DataCzasView:     DataCzas,
				KosztBiletuView:  KosztBiletu,
				CzyZaplaconyView: CzyZaplacony}
			t.ExecuteTemplate(w, "historiaPosilkow.gtpl", d)
		}
		//----------------------------------
	}
	rows3.Close()
	db.Close()
}

//#############################################################################
func platnosci(w http.ResponseWriter, r *http.Request) {
	//fmt.Fprint(w, User)

	//bilety ----------------------------------
	db, err := sql.Open("sqlite3", "stolowkaZPM.db")
	checkErr(err)
	rows5, err := db.Query("SELECT SUM(KosztBiletu)FROM bilety WHERE KtoZabral=?", User)
	if err != nil {
		fmt.Println(err)
		// os.Exit(1)
	}
	/*
		//for rows5.Next() {
		//err = rows5.Scan(&KtoZabral, &KosztBiletu)
		//checkErr3(err)
		if KtoZabral == User {
			t, _ := template.ParseFiles("platnosci.gtpl")
			d := struct {
				UserView            string
				KosztBiletuViewSuma int
			}{
				UserView:            User,
				KosztBiletuViewSuma: }
			t.ExecuteTemplate(w, "platnosci.gtpl", d)
			//break
		}
		//----------------------------------
		//}
	*/
	for rows5.Next() {
		rows5.Scan(&KtoZabral, &KosztBiletu)
		fmt.Printf("%v %v\n", KtoZabral, KosztBiletu)
	}
	rows5.Close()
	db.Close()
}

//***************************************************************************
//Obsługa błędów
//***************************************************************************

func checkErr(err error) {
	if err != nil {
		fmt.Println("Błąd")
	}
}
func checkErr2(err error) {
	if err != nil {
		fmt.Println("Błąd dwa")
	}
}
func checkErr3(err error) {
	if err != nil {
		fmt.Println("Błąd trzy")
	}
}

//***************************************************************************
//funkcja główna
//***************************************************************************
func main() {
	http.HandleFunc("/", opisStołówkaZPM)
	http.HandleFunc("/login", login)
	http.HandleFunc("/panel", panel)
	http.HandleFunc("/historiaPosilkow", historiaPosilkow)
	http.HandleFunc("/platnosci", platnosci)
	http.HandleFunc("/wylogowano", wylogowano)

	err := http.ListenAndServe(":9197", nil)
	if err != nil {
		log.Fatal("ListenAndServe: ", err)
	}
}