import pdb
from PyQt5.QtWidgets import  QWidget, QApplication, QMainWindow
from PyQt5.QtCore import Qt, QSize
from PyQt5.QtGui import QIcon
from PyQt5 import QtGui
from PyQtAds import QtAds
from actions.actions import ActionManager
from gui.layertree import LayerTree
from gui.mapcanvas import DoubleCanvas
from gui.messagebox import MessageBox
from gui.result import ResultTable
from utils import Settings
from utils.project import Project

class MainWindow(QMainWindow):

    def __init__(self, parent=None, **kargs):
        super().__init__(parent) 
        self.current_instance = kargs.get('current_instance', 0)
        if self.current_instance > 0:   
            self.setWindowTitle(QApplication.applicationName() + ' ' + str(self.current_instance))
        else:
            self.setWindowTitle(QApplication.applicationName())
        self.setWindowIcon(QIcon(":/icons/logo.svg"))
        
        self.setAcceptDrops(True) 
        self.setContextMenuPolicy(Qt.CustomContextMenu)
        self.set_toolbar()
        self.set_pannels()
        Project(self).connect(
                self.double_map,
                self.layer_tree, 
                self.message_box, 
                self.result_box)
        self.action_manager = ActionManager(
            self.double_map, 
            self.layer_tree, 
            self.follow_box, 
            self.result_box, 
            self.message_box, self)
        self.action_manager.set_menus(self.menuBar())
        self.action_manager.set_toolbar(self.toolbar)
        self.action_manager.set_status_bar(self.statusBar())

        self.action_manager.set_actions()

        self.resize(*Settings.General().size)


    def set_toolbar(self):
        self.toolbar = self.addToolBar('Toolbar')
        self.toolbar.setMovable(False)
        self.toolbar.setFloatable(False)
        self.toolbar.setIconSize(QSize(16, 16))
        self.toolbar.setToolButtonStyle(Qt.ToolButtonTextBesideIcon)
        self.toolbar.setContextMenuPolicy(Qt.PreventContextMenu)
        self.toolbar.setLayoutDirection(Qt.LeftToRight)
        pass


    def set_pannels(self):
        
        self.dock_manager = QtAds.CDockManager(self)
        self.dock_manager.setContextMenuPolicy(Qt.CustomContextMenu)
        
        self.double_map = DoubleCanvas(self)
        central_dock_widget = QtAds.CDockWidget(self.tr("Canvas"))
        central_dock_widget.setWidget(self.double_map)
        central_dock_area = self.dock_manager.setCentralWidget(central_dock_widget)
        central_dock_area.setAllowedAreas(QtAds.DockWidgetArea.OuterDockAreas) 
        
        self.double_map.setContextMenuPolicy(Qt.CustomContextMenu)

        self.layer_tree = LayerTree(self)
        # self.layer_tree.setContextMenuPolicy(Qt.CustomContextMenu)

        def set_docker_fixed(docker):
            docker.setFeature(QtAds.ads.CDockWidget.DockWidgetFeature.DockWidgetClosable , False)
            docker.setFeature(QtAds.ads.CDockWidget.DockWidgetFeature.DockWidgetMovable , False)
            docker.setFeature(QtAds.ads.CDockWidget.DockWidgetFeature.DockWidgetFloatable , False)

        self.layer_tree_dock = QtAds.CDockWidget(self.tr("图层树"), self)
        
        self.layer_tree_dock.setWidget(self.layer_tree)
        left_area = self.dock_manager.addDockWidget(QtAds.DockWidgetArea.LeftDockWidgetArea, self.layer_tree_dock, central_dock_area)
        self.left_arre = left_area
        self.follow_dock = QtAds.CDockWidget(self.tr("流程"))
        self.follow_box = QWidget(self)
        self.follow_dock.setWidget(self.follow_box)
        self.dock_manager.addDockWidget(QtAds.DockWidgetArea.BottomDockWidgetArea, self.follow_dock, left_area)

        self.result_dock = QtAds.CDockWidget(self.tr("结果"))
        self.result_box = ResultTable(self)
        self.result_dock.setWidget(self.result_box)
        bottom_area = self.dock_manager.addDockWidget(QtAds.DockWidgetArea.BottomDockWidgetArea, self.result_dock, central_dock_area)
        self.message_dock = QtAds.CDockWidget(self.tr("消息"))
        self.message_box = MessageBox(self, MessageBox.INFO)
        self.message_dock.setWidget(self.message_box)
        self.dock_manager.addDockWidget(QtAds.DockWidgetArea.RightDockWidgetArea, self.message_dock, bottom_area)
        # bottom_area.setCurrentDockWidget(self.result_dock)
        self.bottom_area = bottom_area

        set_docker_fixed(self.layer_tree_dock)
        set_docker_fixed(self.follow_dock)
        set_docker_fixed(self.result_dock)
        set_docker_fixed(self.message_dock)

    def closeEvent(self, event):
        pass

    def resizeEvent(self, a0: QtGui.QResizeEvent) -> None:
        Settings.General().size = (a0.size().width(), a0.size().height())
        return super().resizeEvent(a0)