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#!/usr/bin/env python3
# -*- coding: utf-8 -*-
from PyQt5.QtGui import QGuiApplication
from PyQt5.QtQuick import QQuickView
from PyQt5.QtQml import qmlRegisterType
from PyQt5.QtCore import QUrl, QLocale, QTranslator, QLibraryInfo,  QAbstractListModel, QVariant, \
    QModelIndex, Qt, QObject, pyqtSlot, pyqtProperty, qInstallMessageHandler, QSortFilterProxyModel, QRegExp, QByteArray
import sys
import os
import subprocess
from helpers import *
import pwd

class AppList(QAbstractListModel):

    IconRole = Qt.UserRole + 1
    NameRole = Qt.UserRole + 2
    TitleRole = Qt.UserRole + 3
    GroupRole = Qt.UserRole + 4
    DescriptionRole = Qt.UserRole + 5
    RepoRole = Qt.UserRole + 6
    InstallableRole = Qt.UserRole + 7
    InstalledRepoRole = Qt.UserRole + 8
    listapp = []
    def __init__(self, parent=None):
        super().__init__(parent)
        self.get_listapp()

    def get_listapp(self):
      with open("apps.csv", 'rt') as f:
          mycsv = csv.reader(f,delimiter='|')
          next(mycsv)
          for r in mycsv:
            if (r[5] == 'false'):
                  r[5] = ""
            is_app_installed, repo = is_installed(r[1])
            installable = (not is_app_installed) or (r[6] != repo and repo != "")
            app = { 'icon': "img/{}.png".format(r[0]),
                    'name': r[1],
                    'title': r[2],
                    'group':r[3],
                    'description': r[4],
                    'command': r[5],
                    'repo':r[6],
                    'installable': installable,
                    'inst_repo': repo}
            self.listapp.append(app)

    def data(self, index, role=Qt.DisplayRole):
      row = index.row()
      if role == AppList.IconRole:
          return AppList.listapp[row]["icon"]
      elif role == AppList.NameRole:
          return AppList.listapp[row]["name"]
      elif role == AppList.TitleRole:
          return AppList.listapp[row]["title"]
      elif role == AppList.GroupRole:
          return AppList.listapp[row]["group"]
      elif role == AppList.DescriptionRole:
          return AppList.listapp[row]["description"]
      elif role == AppList.RepoRole:
          return AppList.listapp[row]["repo"]
      elif role == AppList.InstallableRole:
          return AppList.listapp[row]["installable"]
      elif role == AppList.InstalledRepoRole:
          return AppList.listapp[row]["installedRepo"]
      else:
          print("Not found")

    def rowCount(self, parent=QModelIndex()):
        return len(AppList.listapp)

    def roleNames(self):
      return {
          AppList.IconRole: b'icon',
          AppList.NameRole: b'name',
          AppList.TitleRole: b'title',
          AppList.GroupRole: b'group',
          AppList.DescriptionRole: b'description',
          AppList.RepoRole: b'repo',
          AppList.InstallableRole: b'installable',
          AppList.InstalledRepoRole: b'installedRepo'
      }

class ConfList(QAbstractListModel):
    NameRole = Qt.UserRole + 1
    def __init__(self, parent=None):
        super().__init__(parent)
        # Changing working directory
        abspath = os.path.abspath(__file__)
        dname = os.path.dirname(abspath)
        os.chdir(dname)

        #collect sys info
        #release = open("/etc/release", "r").read()
        release = subprocess.getoutput('lsb_release -sd')
        release = release[1:-1]
        release_nb = subprocess.getoutput('lsb_release -sr')
        release_nb = release_nb.strip()
        kernel = subprocess.getoutput('uname -r')
        if os.uname()[4] == 'x86_64':
          arch = '64-bit'
        else:
          arch = '32-bit'
        home = os.getenv("HOME")
        username = os.getenv("USER")
        try:
            desktop = get_desktop_name(os.path.basename(os.getenv("DESKTOP_SESSION")))
        except:
            desktop = 'Other'

        if desktop == 'Other':
          desktop = get_desktop_name2(os.getenv("XDG_CURRENT_DESKTOP"))
          if desktop == 'unknown':
              desktop = os.getenv("XDG_CURRENT_DESKTOP")

        self.configuration = [
            {'name': release},
            {'name': _("kernel: {}").format(kernel)},
            {'name': _("arch: {}").format(arch)},
            {'name': _("Desktop: {}").format(desktop)},
            {'name': _("Your user's id: {}").format(os.getuid())},
        ]

    def data(self, index, role=Qt.DisplayRole):
        row = index.row()
        return self.configuration[row]["name"]

    def rowCount(self, parent=QModelIndex()):
        return len(self.configuration)

    def roleNames(self):
        return {
            ConfList.NameRole: b'name',
        }

class Callbrowser(QObject):
    def __init__(self):
        QObject.__init__(self)

    @pyqtSlot(str)
    def weblink(self, link):
        subprocess.Popen(["xdg-open", link])
        print("Opening %s"%link)

class Launcher(QObject):
    def __init__(self):
        QObject.__init__(self)

    @pyqtSlot(QVariant)
    def command(self, app):
        if app.isArray():
            cmd = []
            for i in range(0,app.property("length").toInt()):
                cmd.append(app.property(i).toString())
            subprocess.Popen(cmd)

class Installable(QObject):
    def __init__(self):
        QObject.__init__(self)

    @pyqtSlot(str, str, result=bool)
    def installable(self, app,repo):
        is_app_installed, inst_repo = is_installed(app)
        installable = (not is_app_installed) or (repo != inst_repo and inst_repo != "")
        return installable

def username():
    user = pwd.getpwuid(os.getuid())[4]  # pw_gecos, i e the real name
    if user == "":
        user = pwd.getpwuid(os.getuid())[0] # login
    return user

if __name__ == '__main__':
    app = QGuiApplication(sys.argv)
    locale = QLocale.system().name()
    qtTranslator = QTranslator()
    if qtTranslator.load("qt_" + locale,QLibraryInfo.location(QLibraryInfo.TranslationsPath)):
        app.installTranslator(qtTranslator)
    appTranslator = QTranslator()
    if appTranslator.load("mageiawelcome_" + locale,':/languages'):
        app.installTranslator(appTranslator)
    view = QQuickView()
    view.setResizeMode(QQuickView.SizeRootObjectToView)
    cb = Callbrowser()
    la = Launcher()
    us = username()
    ins = Installable()
    cl = ConfList()
    view.rootContext().setContextProperty('link', cb)
    view.rootContext().setContextProperty('launch', la)
    view.rootContext().setContextProperty('user', us)
    view.rootContext().setContextProperty('ConfList', cl)
    view.rootContext().setContextProperty('installable', ins)
    current_path = os.path.abspath(os.path.dirname(__file__))
    qml_file = os.path.join(current_path, 'mw-ui.qml')
    print("Loading")
    view.setSource(QUrl.fromLocalFile(qml_file))
    if view.status() == QQuickView.Error:
        for error in view.errors():
            print(error.description())
        sys.exit(-1)
    view.show()
    res = app.exec_()
    del view
    sys.exit(res)