import os
import re
import platform
import subprocess

from PySide2.QtCore import QCoreApplication
from PySide2.QtWidgets import QDialog, QFileDialog, QInputDialog
from PySide2.QtWidgets import QMainWindow, QMessageBox

from UIFileDialogView import Ui_Dialog
from UIFunc import scripts, scripts_map

from KeymouseGo import to_abs_path

class FileDialog(Ui_Dialog):
    def __init__(self):
        self.dialog = QDialog()
        self.setupUi(self.dialog)
        self.dialog.setFixedSize(self.dialog.width(), self.dialog.height())
        self.choice.clicked.connect(self.choice_file)
        self.edit.clicked.connect(self.edit_file)
        self.rename.clicked.connect(self.rename_file)

        self.main_window = QMainWindow()
        self.filename = scripts[scripts_map['current_index']]
        self.lineEdit.setText(self.filename)
        self.path = os.path.join(to_abs_path("scripts"))
        
        self.dialog.setWindowTitle(QCoreApplication.translate('Dialog', 'File Manage', None))
        self.file_name.setText(QCoreApplication.translate('Dialog', 'file name', None))
        self.choice.setText(QCoreApplication.translate('Dialog', 'choice', None))
        self.edit.setText(QCoreApplication.translate('Dialog', 'edit', None))
        self.rename.setText(QCoreApplication.translate('Dialog', 'rename', None))
    

    def choice_file(self):
        file = QFileDialog.getOpenFileName(self.main_window, "选择文件", dir=to_abs_path('scripts'), filter='*.txt')[0]
        file_name = re.split(r'\\|\/', file)[-1]
        if file_name != '':
            scripts_map['current_index'] = scripts_map[file_name]
            if file_name.strip() != '' and file_name is not None:
                self.lineEdit.setText(file_name)


    def edit_file(self):
        user_platform = platform.system()
        try:
            if user_platform == 'Linux':
                subprocess.call(['xdg-open', os.path.join(self.path, self.lineEdit.text())])
            elif user_platform == 'Darwin':
                # mac
                subprocess.call(['open', os.path.join(self.path, self.lineEdit.text())])
            else:
                os.startfile(os.path.join(self.path, self.lineEdit.text()))
        except FileNotFoundError:
            QMessageBox().warning(self.main_window, "warning", QCoreApplication.translate('Dialog', 'FNF', None))
            self.lineEdit.setText('')


    def rename_file(self):
        new_file_name = str(QInputDialog.getText(self.main_window, 
                                                 QCoreApplication.translate('Dialog', 'rename', None), 
                                                 QCoreApplication.translate('Dialog', 'PINFN', None))[0])

        if new_file_name != None and new_file_name.strip() != '':
            if not new_file_name.endswith('.txt'):
                new_file_name = new_file_name + '.txt'

            try:
                os.rename(os.path.join(self.path, self.lineEdit.text()), os.path.join(self.path, new_file_name))
                QMessageBox().information(self.main_window, 'info', QCoreApplication.translate('Dialog', 'Success', None))
                # 更新
                filename = self.lineEdit.text()
                index = scripts_map.get(filename)
                scripts_map.pop(filename)
                scripts_map[new_file_name] = index
                scripts[index] = new_file_name
                self.lineEdit.setText(new_file_name)
            except FileNotFoundError:
                QMessageBox.warning(self.main_window, 'warning', QCoreApplication.translate('Dialog', 'FNF', None))
        else:
            QMessageBox.warning(self.main_window, 'warning', QCoreApplication.translate('Dialog', 'FNCBEOS', None))


    def show(self):
        self.dialog.show()
        self.dialog.exec_()