import sys
from os.path import join
from PyQt5 import QtWidgets, QtGui
from database import dbuser

class mainWindow(QtWidgets.QMainWindow):

    VERSION = 0.1
    
    def __init__(self):
        super(mainWindow, self).__init__()
        logo = join("./ressources", "icon.ico")
        self.setWindowIcon(QtGui.QIcon(logo))
        menu = self.menuBar()
        menu_options = menu.addMenu("Options")
        btn_apropos = QtWidgets.QAction("A propos", self)
        btn_apropos.triggered.connect(self.a_propos)
        menu_options.addAction(btn_apropos)
        self.setWindowTitle("Alphajob")
        self.home()

    def home(self):
        self.label1 = QtWidgets.QLabel("Home page")
        btn1 = QtWidgets.QPushButton("Aller à la page de connexion")
        btn1.clicked.connect(self.page_login)

        self.layoutMain = QtWidgets.QVBoxLayout()

        self.layoutMain.addWidget(self.label1)
        self.layoutMain.addWidget(btn1)

        if hasattr(self, "mainWidget"):
            self.mainWidget.deleteLater()
        self.mainWidget = QtWidgets.QWidget()
        self.mainWidget.setLayout(self.layoutMain)
        self.setCentralWidget(self.mainWidget)
        self.show()

    def page_login(self):
        btnAccueil = QtWidgets.QPushButton("Accueil")
        btnAccueil.clicked.connect(self.home)
        self.emailConnexion = QtWidgets.QLineEdit("Email")
        self.passwordConnexion = QtWidgets.QLineEdit("Password")
        btnConnexion = QtWidgets.QPushButton("Connexion")
        btnConnexion.clicked.connect(self.login)

        self.layoutMain = QtWidgets.QVBoxLayout()
        self.layoutNavigation = QtWidgets.QHBoxLayout()
        self.layoutPassword = QtWidgets.QHBoxLayout()
        self.layoutPasswordWidgets = QtWidgets.QVBoxLayout()

        self.layoutMain.addLayout(self.layoutNavigation)
        self.layoutNavigation.addWidget(btnAccueil)
        self.layoutNavigation.addStretch()

        self.layoutMain.addLayout(self.layoutPassword)
        self.layoutPassword.addStretch()
        self.layoutPassword.addLayout(self.layoutPasswordWidgets)
        self.layoutPassword.addStretch()

        self.layoutPasswordWidgets.addWidget(self.emailConnexion)
        self.layoutPasswordWidgets.addWidget(self.passwordConnexion)
        self.layoutPasswordWidgets.addWidget(btnConnexion)

        self.mainWidget.deleteLater()
        self.mainWidget = QtWidgets.QWidget()
        self.mainWidget.setLayout(self.layoutMain)
        self.setCentralWidget(self.mainWidget)

    def login(self):
        user = dbuser.DbUser()
        if user.check_exist_email(self.emailConnexion.text()):
            res = user.check_user_credential(
                    self.emailConnexion.text(),
                    self.passwordConnexion.text()
                )
            if res:
                QtWidgets.QMessageBox.information(                       
                        self,
                        "Connexion",
                        "Vous êtes connecté"
                    )
            else:
                QtWidgets.QMessageBox.warning(                       
                        self,
                        "Connexion",
                        "Mauvaise combinaison mail & mot de passe"
                    )
        else:
            QtWidgets.QMessageBox.warning(                       
                    self,
                    "Connexion",
                    "Mauvais email"
                )


    def a_propos(self):
        QtWidgets.QMessageBox.information(
            self,
            "A propos",
            "Logiciel pour mon dossier professionnel.\
            <br>Version: %s\
            <br>Auteur: Debulois Quentin\
            <br>Code source: \
            <a href='https://git.debulois.fr/'>git.debulois.fr/</a>" % self.VERSION
            )


if __name__ == "__main__":
    def main():
        """Démarrage de l'app
        """
        app = QtWidgets.QApplication(sys.argv)
        GUI = mainWindow()
        sys.exit(app.exec_())

    main()