from PyQt5 import QtWidgets, uic
import os

from .db.StarsDB import StarDB

DEFAULT_DB = "stars.db"

class AstrodataGUI(QtWidgets.QMainWindow):
    def __init__(self):
        super(AstrodataGUI, self).__init__()
        classFileDir = os.path.dirname(os.path.abspath(__file__))
        absUiFilePath = os.path.join(classFileDir, "astrodatagui.ui")
        uic.loadUi(absUiFilePath, self)

        self.actionExit.triggered.connect(self.actionExitTriggered)

        self.show()

        self.loadDB()

    def loadDB(self):
        try:
            self.starDB = StarDB.getInstance(DEFAULT_DB)
        except Exception as e:
            self.showErrorMessage("DB Connection failed",
                                  f"Could not connect to local database file {DEFAULT_DB}\n\
                                  {e}")

    def showErrorMessage(self, title: str, msg: str):
        print(title)
        print(msg)

    def actionExitTriggered(self):
        for starDB in StarDB.getAllInstances():
            starDB.close()

        exit()