job-scrapper/lib/gui.py

from PySide6.QtWidgets import QApplication, QWidget, QMainWindow, QTableWidget, QVBoxLayout, QTableWidgetItem, QPushButton, QHBoxLayout, QTableView, QLineEdit, QDialog, QLabel, QTextEdit, QCheckBox, QComboBox
from PySide6.QtWebEngineWidgets import QWebEngineView
from PySide6.QtCore import QUrl,Qt,QSortFilterProxyModel, qDebug, QSize,QObject,QThread,Signal
from PySide6.QtSql import QSqlDatabase, QSqlTableModel, QSqlQueryModel, QSqlQuery

from db import addFineFilter
import sysparse
import sys

Cantons = ["AG","ZH","BE","SG","SO"]


class Worker(QObject):
        pwprompt = Signal()
        pw = Signal(str)
        finished = Signal()
        dialog_closed = True
        password = ['empty']
        
        def run(self):
            sysparse.parse(config="conf",worker=self)
        def return_pw(self,x):
            self.password = [x]
            self.dialog_closed = True

class MainWindow(QMainWindow):
    def __init__(self):
        super().__init__()
        self.w = None
        
        self.cmdCanton = ''
        self.initcmd = 'SELECT * FROM jobs as b '
        self.customcmd = ''
        self.cmd = ''
        self.setWindowTitle("DB_Inspector")
        self.isAWhere = False
        
        self.layout = QVBoxLayout()
        self.layout2 = QHBoxLayout()

        self.b_canton = QPushButton("Modify Filter")
        self.b_canton.clicked.connect(self.showQueryWindow)

        self.browser = QWebEngineView()
        self.browser.setUrl(QUrl("https://jobagent.ch"))

        self.EditQuery = QLineEdit()
        self.EditQuery.returnPressed.connect(self.queryEditLine)

        self.model = QSqlTableModel(self)
        self.model.setTable("jobs")
        self.model.select()

        self.view = QTableView()
        self.view.setModel(self.model)
        self.setProxyViewSettings()
        self.view.clicked.connect(self.cell_clicked)


        self.PsyncDB = QPushButton("Perform sync acording to config file")
        self.PsyncDB.clicked.connect(self.runWorker)

        self.layout.addWidget(self.view)
        self.layout.addWidget(self.b_canton)
        self.layout.addWidget(self.EditQuery)
        self.layout.addWidget(self.PsyncDB)
        self.layout2.addLayout(self.layout)
        self.layout2.addWidget(self.browser)

        widget = QWidget()
        widget.setLayout(self.layout2)

        self.setCentralWidget(widget)

    def setProxyViewSettings(self):
        self.view.resizeColumnsToContents()
        self.view.setColumnWidth(5,10)
        self.view.hideColumn(7)
        self.view.setSortingEnabled(True)
        self.view.clicked.connect(self.cell_clicked)
    def runWorker(self):
        self.thread = QThread()
        self.worker = Worker()

        self.worker.moveToThread(self.thread)

        self.thread.started.connect(self.disable_PsyncDB)
        self.thread.started.connect(self.worker.run)

        self.worker.pwprompt.connect(self.showDialog)
        self.worker.finished.connect(self.thread.quit)
        self.worker.finished.connect(self.enable_PsyncDB)
        

        self.thread.start()
    def disable_PsyncDB(self):
        self.PsyncDB.setText("Sync Running...")
        self.PsyncDB.setEnabled(False)
    def enable_PsyncDB(self):
        self.PsyncDB.setEnabled(True)
        self.PsyncDB.setText("Perform another sync acording to config file")
    def showDialog(self):
            w = PWPrompt()
            w.set_MSG(self.worker.messageContent)
            ret =  w.exec()
            self.pw = w.pw
            self.worker.password = w.pw
            print("showDialog,self.pw:",self.pw)
            self.worker.dialog_closed=True
            if ret == QDialog.Rejected:
                return 1

    def showQueryWindow(self,checked):
        if self.w is None:
            self.w =  QueryWindow()
        self.w.show()
        self.w.queryFineFilers()
    def filter_canton(self,canton):
        if canton != "ALL":
            self.cmdCanton = f""" 
             WHERE EXISTS 
            (SELECT GDENAME FROM Cantons as w  
            where w.GDEKT = '{canton}' AND 
            b.location LIKE GDENAME) """
            print("cmd canton:", self.cmdCanton)
            
        else:
            self.cmdCanton = ''
            print("disable fil§.ter")
       # self.customSQL(self.cmd)

    def queryEditLine(self):
        self.cmd = self.EditQuery.text()
        if self.customcmd or self.cmd: 
            if self.cmdCanton:
                self.isAWhere = True
                connectingstring = " AND "
            else:
                self.isAWhere = False
                connectingstring = " WHERE "
        else:
            connectingstring = ' '
        print(self.initcmd + self.cmdCanton +connectingstring +self.customcmd + self.cmd)
        self.customSQL(self.initcmd+ self.cmdCanton + connectingstring + self.customcmd + self.cmd)
        if self.customcmd or self.cmd:
            addFineFilter("../db/sqlite3.db","filters",self.customcmd + self.cmd)

    def cell_clicked(self):
        x = self.view.selectionModel().currentIndex().row()
        y = self.view.selectionModel().currentIndex().column()
        data = self.view.model().index(x,5).data()
        print("cell clicked:",x," / ",y, "-->",data)
        self.browser.setUrl(QUrl(data))

    def customSQL(self,cmd):
        print("Run SQL Query",cmd)
        self.model.setTable("")
        self.model.setQuery(cmd +" ;")

        self.proxymodel2 = QSortFilterProxyModel(self)
        self.proxymodel2.setSourceModel(self.model)
        self.view.setModel(self.proxymodel2)
        self.setProxyViewSettings()
class PWPrompt(QDialog):
    def __init__(self):
        super().__init__()
        self.pw = '' 
        self.MSG1 = QLabel("Please Enter Password")
        self.MSG = QLabel("ACCOUNT")
        self.BOK = QPushButton("OK")
        self.BCancel = QPushButton("Cancel")
        self.EPW = QLineEdit()
        self.EPW.setEchoMode(QLineEdit.EchoMode.Password)
        self.BOK.clicked.connect(self.confirm)
        self.BCancel.clicked.connect(self.reject)

        self.VLayout = QVBoxLayout()
        self.VLayout.addWidget(self.MSG1)
        self.VLayout.addWidget(self.MSG)
        self.VLayout.addWidget(self.EPW)
        self.VLayout.addWidget(self.BOK)
        self.VLayout.addWidget(self.BCancel)
        
        self.setLayout(self.VLayout)
    def confirm(self):
        self.accept()
        self.pw = self.EPW.text()
    def set_MSG(self,message):
        self.MSG.setText(message)

class QueryWindow(QWidget):
    def __init__(self):
        super().__init__()
        
        self.FlagShow = 0

        self.label = QLabel("Query settings")
        self.setWindowTitle("Query")
        
        self.EditQuery = QTextEdit()
        self.BSubmit = QPushButton("Submit")
        self.BSubmit.clicked.connect(self.submit)
        
        self.LFilter = QLabel()
        self.LFilter.setText("Filter by Cantons")

        self.CFilter = QComboBox()
        self.CFilter.addItem("ALL")
        for Canton in Cantons:
            self.CFilter.addItem(Canton)
        self.CFilter.currentTextChanged.connect(window.filter_canton)
        self.CFilter.currentTextChanged.connect(self.setTFilter)

        self.TFilter = QTextEdit()
        self.TFilter.setReadOnly(True)
        self.TInitCmd = QLabel()        
        self.TInitCmd.setText(window.initcmd)

        self.vLayout = QVBoxLayout()
        self.vLayout.addWidget(self.TInitCmd)
        self.vLayout.addWidget(self.TFilter)
        self.vLayout.addWidget(self.EditQuery)
        self.vLayout.addWidget(self.BSubmit) 
        
        self.LShowViews = QLabel()
        self.LShowViews.setText("Custom Views in Database")

        self.CShowViews = QComboBox()
        items = self.getViews()
        for item in items:
            self.CShowViews.addItem(item)
        self.CShowViews.currentTextChanged.connect(self.setView)

        self.CShowFineFilters = QComboBox()

        self.queryFineFilers()
        self.CShowFineFilters.currentTextChanged.connect(window.EditQuery.setText)

        self.PApplyView = QCheckBox()
        self.PApplyView.setText("Apply View")
        self.PApplyView.clicked.connect(self.setView)

        self.vrLayout = QVBoxLayout()
        self.vrLayout.addWidget(self.LFilter)
        self.vrLayout.addWidget(self.CFilter)
        self.vrLayout.addWidget(self.LShowViews)
        self.vrLayout.addWidget(self.CShowViews)
        self.vrLayout.addWidget(self.PApplyView)
        self.vrLayout.addWidget(self.CShowFineFilters)

        self.WvrLayout = QWidget()
        self.WvrLayout.setLayout(self.vrLayout)
        self.WvrLayout.setMaximumSize(QSize(200,200))

        self.hLayout = QHBoxLayout()
        self.hLayout.addLayout(self.vLayout)
        self.hLayout.addWidget(self.WvrLayout)

        widget = QWidget()
        self.setLayout(self.hLayout)
        self.EditQuery.setText(window.customcmd)
        
        print("Comboshowview:",self.CShowViews.currentText())
    def queryFineFilers(self):
        self.CShowFineFilters.clear()
        FineFilterItems = self.getFineFilters()
        for item in FineFilterItems:
            self.CShowFineFilters.addItem(item)
    def getFineFilters(self):
        item = []
        statement = f"""Select cmd FROM filters;"""
        query = QSqlQuery(statement)
        while query.next():
            item.append(query.value(0))
        return item
        

    def getViews(self):
        item = []
        statement = f"""SELECT name FROM sqlite_master where type='view'"""
        query = QSqlQuery(statement)
        while query.next():
            print(query.value(0))
            item.append(query.value(0))
            
        print(query.lastError())
        return item

    def setView(self):
        if self.PApplyView.isChecked():
            self.view = self.CShowViews.currentText()
            print("Selected View:",self.view)
            window.initcmd = f"""SELECT * FROM '{self.view}' """
            print("window.initcmd:", window.initcmd)
        else:
            window.initcmd = f"""SELECT * FROM jobs as b """
            print("View unchecked")    
        self.TInitCmd.setText(window.initcmd)

    def setTFilter(self):
        self.TFilter.setText(window.cmdCanton)

    def submit(self):
        self.setView()
        window.customcmd = self.EditQuery.toPlainText()
        window.queryEditLine()
        #print("text:",window.customcmd)
        #window.customSQL(window.customcmd)
        self.hide()

    def out(self,s):
        print("Current selection",s)


app = QApplication(sys.argv)

con = QSqlDatabase.addDatabase("QSQLITE")
con.setDatabaseName("../db/sqlite3.db")

if not con.open():
    qDebug("Error on opening sql database")
    sys.exit(1)

window = MainWindow()
window.show()
app.exec()