from src.windows import LoginWindow, AdminWindow, ClientWindow
from src.objects import User, Rights
from src.db import DB_AUTH_HARDCODED as config

from PyQt6.QtWidgets import QApplication
from PyQt6.QtCore import QObject, pyqtSlot, pyqtSignal
from PyQt6.QtSql import QSqlDatabase

class Composer(QObject):
    render_request = pyqtSignal(User)

    def __init__(self):
        super().__init__()
        self._current = None
        self._app = QApplication([])
        self._init_db()
        self.render_request.connect(self._render)

    def _init_db(self):
        self._db = QSqlDatabase("QPSQL")
        self._db.setDatabaseName(config['dbname'])
        self._db.setPort(config['port'])
        self._db.setHostName(config['host'])
        self._db.setUserName(config['user'])
        self._db.setPassword(config['password'])
        self._db.open()

    @pyqtSlot(User)
    def _render(self, user: User):
        match user.rights:
            case Rights.ADMIN:
                self._admin_fabric()
            case Rights.MANAGER:
                pass
            case Rights.CLIENT:
                self._client_fabric(user)

    def _login_fabric(self):
        self.wlogin = LoginWindow(self, self._db)

        if self._current:
            self._current.close()

        self.wlogin.show()

        self._current = self.wlogin

    def _admin_fabric(self):
        self.wadmin = AdminWindow(self, self._db)

        if self._current:
            self._current.close()

        self.wadmin.show()

        self._current = self.wadmin

    def _client_fabric(self, user: User):
        self.wclient = ClientWindow(self, self._db, user)

        if self._current:
            self._current.close()

        self.wclient.show()

        self._current = self.wclient

    def run(self):
        import sys
        self._login_fabric()
        self._current.show()
        sys.exit(self._app.exec())