import krita
from PyQt5.QtGui import QPixmap, QIcon
from . import uihotkeybrushes


class HotkeyBrushesExtension(krita.Extension):

    def __init__(self, parent):
        super(HotkeyBrushesExtension, self).__init__(parent)

        self.actions = []
        self.buttons = []
        self.selectedPresets = []
        # Indicates whether we want to activate the previous-selected brush
        # on the second press of the shortcut
        self.activatePrev = True
        self.oldPreset = None

    def setup(self):
        self.readSettings()

    def createActions(self, window):
        action = window.createAction("hotkey_brushes", i18n("Hotkey Brushes"))
        action.setToolTip(i18n("Assign brush presets to shortcuts."))
        action.triggered.connect(self.initialize)
        self.loadActions(window)

    def initialize(self):
        self.uihotkeybrushes = uihotkeybrushes.UIHotkeyBrushes()
        self.uihotkeybrushes.initialize(self)

    def readSettings(self):
        self.selectedPresets = Application.readSetting(
            "", "hotkeybrushes", "").split(',')
        setting = Application.readSetting(
            "", "hotkeybrushesActivatePrev2ndPress", "True")
        # we should not get anything other than 'True' and 'False'
        self.activatePrev = setting == 'True'

    def writeSettings(self):
        presets = []

        for index, button in enumerate(self.buttons):
            self.actions[index].preset = button.preset
            presets.append(button.preset)
        Application.writeSetting("", "hotkeybrushes", ','.join(map(str, presets)))
        Application.writeSetting("", "hotkeybrushesActivatePrev2ndPress",
                                 str(self.activatePrev))

    def loadActions(self, window):
        allPresets = Application.resources("preset")

        # action = window.createAction(
        #     f"hotkey_reset_brush",
        #     f"Set Brush 100% Opacity and 100% Flow", "")
        # action.setData({"payload": 1, "message": "Set 100% opacity + 100% flow"})
        # action.triggered.connect(self.resetBrush)
        # self.actions.append(action)

        # for i, item in enumerate([5,10,15,20,30,40,50,60,70,80,90,100]):
        #     for z in "opacity flow".split(" "):
        #         action = window.createAction(
        #             f"hotkey_{z}_{item}",
        #             f"Set Brush {z.capitalize()} {item}%", "")
        #         action.setData({"type": z, "payload": item/100, "message": f"Set {item}% {z}"})
        #         action.triggered.connect(self.setBrushSetting)
        #         self.actions.append(action)

        for index, item in enumerate(range( 1, 64 )):
            action = window.createAction(
                "hotkey_preset_" + str(item),
                str(i18n("Activate Brush Preset {num}")).format(num=item), "")
            action.triggered.connect(self.activatePreset)
            if (index < len(self.selectedPresets)
                    and self.selectedPresets[index] in allPresets):
                action.preset = self.selectedPresets[index]
            else:
                action.preset = None

            self.actions.append(action)

    def resetBrush(self):
        window = Application.activeWindow()
        currentView = window.views()[0]
        try:
            currentPreset = window.views()[0].currentBrushPreset()
            Application.activeWindow().activeView().showFloatingMessage(
                "Preset Reset",
                QIcon(QPixmap.fromImage(currentPreset.image())),
                1000,
                2
            )
            # Application.activeWindow().views()[0].showFloatingMessage( #TODO: ensure activeView message is displayed
            #     f"Set 100% opacity + 100% flow",
            #     QIcon(QPixmap.fromImage(currentPreset.image())),
            #     1000,
            #     2
            # )
        except Exception as e:
            print(e)
        currentView.setPaintingOpacity(1) #100%
        currentView.setPaintingFlow(1) #100%
        currentView.setCurrentBlendingMode("") # any string passed just defaults to "Normal" apparently


    def setBrushSetting(self):
        window = Application.activeWindow()
        currentView = window.views()[0]
        data = self.sender().data()
        try:
            currentPreset = window.views()[0].currentBrushPreset()
            Application.activeWindow().activeView().showFloatingMessage(
                data['message'],
                QIcon(QPixmap.fromImage(currentPreset.image())),
                1000,
                2
            )
            # Application.activeWindow().views()[0].showFloatingMessage(
            #     data['message'],
            #     QIcon(QPixmap.fromImage(currentPreset.image())),
            #     1000,
            #     2
            # )
        except Exception as e:
            print(e)
        if data['type'] == "opacity":
            currentView.setPaintingOpacity(data["payload"])
        if data['type'] == "flow":
            currentView.setPaintingFlow(data["payload"])

    def activatePreset(self):
        allPresets = Application.resources("preset")
        window = Application.activeWindow()
        if (window and len(window.views()) > 0
                and self.sender().preset in allPresets):
            currentPreset = window.views()[0].currentBrushPreset()
            if (self.activatePrev
                    and self.sender().preset == currentPreset.name()):\
                window.views()[0].activateResource(self.oldPreset)
            else:
                self.oldPreset = window.views()[0].currentBrushPreset()
                window.views()[0].activateResource(
                    allPresets[self.sender().preset])
            try:
                currentPreset = window.views()[0].currentBrushPreset()
                Application.activeWindow().activeView().showFloatingMessage(
                    f"{currentPreset.name()} Selected",
                    QIcon(QPixmap.fromImage(currentPreset.image())),
                    1000,
                    2
                )
                # Application.activeWindow().views()[0].showFloatingMessage(
                #     str(i18n("{}\nselected")).format(currentPreset.name()),
                #     QIcon(QPixmap.fromImage(currentPreset.image())),
                #     1000,
                #     1
                # )
            except Exception as e:
                print(e)