import os
from subprocess import Popen, PIPE, STDOUT
from PyQt4 import QtGui, QtCore
from configuration.Appconfig import Appconfig
from projManagement import Worker
from projManagement.Validation import Validation

BROWSE_LOCATION = '/home'


class OpenModelicaEditor(QtGui.QWidget):

    def __init__(self, dir=None):
        QtGui.QWidget.__init__(self)
        self.obj_validation = Validation()
        self.obj_appconfig = Appconfig()
        self.projDir = dir
        self.projName = os.path.basename(self.projDir)
        self.ngspiceNetlist = os.path.join(
            self.projDir, self.projName + ".cir.out")
        self.modelicaNetlist = os.path.join(
            self.projDir, self.projName + ".mo")
        self.map_json = Appconfig.modelica_map_json

        self.grid = QtGui.QGridLayout()
        self.FileEdit = QtGui.QLineEdit()
        self.FileEdit.setText(self.ngspiceNetlist)
        self.grid.addWidget(self.FileEdit, 0, 0)

        self.browsebtn = QtGui.QPushButton("Browse")
        self.browsebtn.clicked.connect(self.browseFile)
        self.grid.addWidget(self.browsebtn, 0, 1)

        self.convertbtn = QtGui.QPushButton("Convert")
        self.convertbtn.clicked.connect(self.callConverter)
        self.grid.addWidget(self.convertbtn, 2, 1)

        self.loadOMbtn = QtGui.QPushButton("Load OMEdit")
        self.loadOMbtn.clicked.connect(self.callOMEdit)
        self.grid.addWidget(self.loadOMbtn, 3, 1)

        # self.setGeometry(300, 300, 350, 300)
        self.setLayout(self.grid)
        self.show()

    def browseFile(self):
        self.ngspiceNetlist = QtGui.QFileDialog.getOpenFileName(
            self, 'Open Ngspice file', BROWSE_LOCATION)
        self.FileEdit.setText(self.ngspiceNetlist)

    def callConverter(self):
        try:
            self.cmd1 = (
                "python3 ../ngspicetoModelica/NgspicetoModelica.py " +
                self.ngspiceNetlist + ' ' +
                self.map_json
            )
            # self.obj_workThread1 = Worker.WorkerThread(self.cmd1)
            # self.obj_workThread1.start()
            convert_process = Popen(
                self.cmd1,
                shell=True,
                stdin=PIPE,
                stdout=PIPE,
                stderr=STDOUT,
                close_fds=True)
            error_code = convert_process.stdout.read()

            if not error_code:
                self.msg = QtGui.QMessageBox()
                self.msg.setText(
                    "Ngspice netlist successfully converted to OpenModelica" +
                    "netlist"
                )
                self.obj_appconfig.print_info(
                    "Ngspice netlist successfully converted to OpenModelica" +
                    "netlist"
                )
                self.msg.exec_()
            else:
                self.err_msg = QtGui.QErrorMessage()
                self.msg.setModal(True)
                self.msg.setWindowTitle(
                    "Ngspice to Modelica conversion error")
                self.err_msg.showMessage(
                    'Unable to convert NgSpice netlist to Modelica netlist.' +
                    'Check the netlist :' +
                    error_code)
                self.err_msg.exec_()
                self.obj_appconfig.print_error(error_code)

        except Exception as e:
            self.msg = QtGui.QErrorMessage()
            self.msg.setModal(True)
            self.msg.setWindowTitle("Ngspice to Modelica conversion error")
            self.msg.showMessage(
                'Unable to convert NgSpice netlist to Modelica netlist.' +
                'Check the netlist :' +
                str(e))
            self.msg.setWindowTitle("Ngspice to Modelica conversion error")

    def callOMEdit(self):

        if self.obj_validation.validateTool("OMEdit"):
            self.cmd2 = "OMEdit " + self.modelicaNetlist
            self.obj_workThread2 = Worker.WorkerThread(self.cmd2)
            self.obj_workThread2.start()
            print("OMEdit called")
            self.obj_appconfig.print_info("OMEdit called")

        else:
            self.msg = QtGui.QMessageBox()
            self.msgContent = (
                "There was an error while opening OMEdit.<br/>"
                "Please make sure OpenModelica is installed in your"
                " system.<br/>"
                "To install it on Linux : Go to <a href="
                "https://www.openmodelica.org/download/download-linux"
                ">OpenModelica Linux</a> and install nightly build"
                " release.<br/>"
                "To install it on Windows : Go to <a href="
                "https://www.openmodelica.org/download/download-windows"
                ">OpenModelica Windows</a> and install latest version.<br/>"
                )
            self.msg.setTextFormat(QtCore.Qt.RichText)
            self.msg.setText(self.msgContent)
            self.msg.setWindowTitle("Missing OpenModelica")
            self.obj_appconfig.print_info(self.msgContent)
            self.msg.exec_()