import os
import logging
import typing
import asyncio

os.environ["KIVY_NO_CONSOLELOG"] = "1"
os.environ["KIVY_NO_FILELOG"] = "1"
os.environ["KIVY_NO_ARGS"] = "1"
os.environ["KIVY_LOG_ENABLE"] = "0"

from kivy.base import Config

Config.set("input", "mouse", "mouse,disable_multitouch")
Config.set('kivy', 'exit_on_escape', '0')
Config.set('graphics', 'multisamples', '0')  # multisamples crash old intel drivers

from kivy.app import App
from kivy.core.window import Window
from kivy.core.clipboard import Clipboard
from kivy.core.text.markup import MarkupLabel
from kivy.base import ExceptionHandler, ExceptionManager, Clock
from kivy.factory import Factory
from kivy.properties import BooleanProperty, ObjectProperty
from kivy.uix.button import Button
from kivy.uix.gridlayout import GridLayout
from kivy.uix.textinput import TextInput
from kivy.uix.recycleview import RecycleView
from kivy.uix.tabbedpanel import TabbedPanel, TabbedPanelItem
from kivy.uix.boxlayout import BoxLayout
from kivy.uix.floatlayout import FloatLayout
from kivy.uix.label import Label
from kivy.uix.progressbar import ProgressBar
from kivy.utils import escape_markup
from kivy.lang import Builder
from kivy.uix.recycleview.views import RecycleDataViewBehavior
from kivy.uix.behaviors import FocusBehavior
from kivy.uix.recycleboxlayout import RecycleBoxLayout
from kivy.uix.recycleview.layout import LayoutSelectionBehavior

import Utils
from NetUtils import JSONtoTextParser, JSONMessagePart

if typing.TYPE_CHECKING:
    import CommonClient

    context_type = CommonClient.CommonContext
else:
    context_type = object


# I was surprised to find this didn't already exist in kivy :(
class HoverBehavior(object):
    """from https://stackoverflow.com/a/605348110"""
    hovered = BooleanProperty(False)
    border_point = ObjectProperty(None)

    def __init__(self, **kwargs):
        self.register_event_type('on_enter')
        self.register_event_type('on_leave')
        Window.bind(mouse_pos=self.on_mouse_pos)
        Window.bind(on_cursor_leave=self.on_cursor_leave)
        super(HoverBehavior, self).__init__(**kwargs)

    def on_mouse_pos(self, *args):
        if not self.get_root_window():
            return  # do proceed if I'm not displayed <=> If have no parent
        pos = args[1]
        # Next line to_widget allow to compensate for relative layout
        inside = self.collide_point(*self.to_widget(*pos))
        if self.hovered == inside:
            return  # We have already done what was needed
        self.border_point = pos
        self.hovered = inside

        if inside:
            self.dispatch("on_enter")
        else:
            self.dispatch("on_leave")

    def on_cursor_leave(self, *args):
        # if the mouse left the window, it is obviously no longer inside the hover label.
        self.hovered = BooleanProperty(False)
        self.border_point = ObjectProperty(None)
        self.dispatch("on_leave")


Factory.register('HoverBehavior', HoverBehavior)


class ServerToolTip(Label):
    pass


class HovererableLabel(HoverBehavior, Label):
    def __init__(self, *args, **kwargs):
        super(HovererableLabel, self).__init__(*args, **kwargs)
        self.layout = FloatLayout()
        self.popuplabel = ServerToolTip(text="Test")
        self.layout.add_widget(self.popuplabel)

    def on_enter(self):
        self.popuplabel.text = self.get_text()
        App.get_running_app().root.add_widget(self.layout)

    def on_leave(self):
        App.get_running_app().root.remove_widget(self.layout)

    @property
    def ctx(self) -> context_type:
        return App.get_running_app().ctx


class ServerLabel(HovererableLabel):
    def get_text(self):
        if self.ctx.server:
            ctx = self.ctx
            text = f"Connected to: {ctx.server_address}."
            if ctx.slot is not None:
                text += f"\nYou are Slot Number {ctx.slot} in Team Number {ctx.team}, " \
                        f"named {ctx.player_names[ctx.slot]}."
                if ctx.items_received:
                    text += f"\nYou have received {len(ctx.items_received)} items. " \
                            f"You can list them in order with /received."
                if ctx.total_locations:
                    text += f"\nYou have checked {len(ctx.checked_locations)} " \
                            f"out of {ctx.total_locations} locations. " \
                            f"You can get more info on missing checks with /missing."
                if ctx.permissions:
                    text += "\nPermissions:"
                    for permission_name, permission_data in ctx.permissions.items():
                        text += f"\n    {permission_name}: {permission_data}"
                if ctx.hint_cost is not None and ctx.total_locations:
                    text += f"\nA new !hint <itemname> costs {ctx.hint_cost}% of checks made. " \
                            f"For you this means every {max(0, int(ctx.hint_cost * 0.01 * ctx.total_locations))} " \
                            "location checks."
                elif ctx.hint_cost == 0:
                    text += "\n!hint is free to use."

            else:
                text += f"\nYou are not authenticated yet."

            return text

        else:
            return "No current server connection. \nPlease connect to an Archipelago server."


class MainLayout(GridLayout):
    pass


class ContainerLayout(FloatLayout):
    pass


class SelectableRecycleBoxLayout(FocusBehavior, LayoutSelectionBehavior,
                                 RecycleBoxLayout):
    """ Adds selection and focus behaviour to the view. """


class SelectableLabel(RecycleDataViewBehavior, Label):
    """ Add selection support to the Label """
    index = None
    selected = BooleanProperty(False)

    def refresh_view_attrs(self, rv, index, data):
        """ Catch and handle the view changes """
        self.index = index
        return super(SelectableLabel, self).refresh_view_attrs(
            rv, index, data)

    def on_touch_down(self, touch):
        """ Add selection on touch down """
        if super(SelectableLabel, self).on_touch_down(touch):
            return True
        if self.collide_point(*touch.pos):
            if self.selected:
                self.parent.clear_selection()
            else:
                # Not a fan of the following few lines, but they work.
                temp = MarkupLabel(text=self.text).markup
                text = "".join(part for part in temp if not part.startswith(("[color", "[/color]")))
                cmdinput = App.get_running_app().textinput
                if not cmdinput.text and " did you mean " in text:
                    for question in ("Didn't find something that closely matches, did you mean ",
                                     "Too many close matches, did you mean "):
                        if text.startswith(question):
                            name = Utils.get_text_between(text, question,
                                                          "? (")
                            cmdinput.text = f"!{App.get_running_app().last_autofillable_command} {name}"
                            break
                elif not cmdinput.text and text.startswith("Missing: "):
                    cmdinput.text = text.replace("Missing: ", "!hint_location ")

                Clipboard.copy(text)
                return self.parent.select_with_touch(self.index, touch)

    def apply_selection(self, rv, index, is_selected):
        """ Respond to the selection of items in the view. """
        self.selected = is_selected


class ConnectBarTextInput(TextInput):
    def insert_text(self, substring, from_undo=False):
        s = substring.replace('\n', '').replace('\r', '')
        return super(ConnectBarTextInput, self).insert_text(s, from_undo=from_undo)


class GameManager(App):
    logging_pairs = [
        ("Client", "Archipelago"),
    ]
    base_title: str = "Archipelago Client"
    last_autofillable_command: str

    def __init__(self, ctx: context_type):
        self.title = self.base_title
        self.ctx = ctx
        self.commandprocessor = ctx.command_processor(ctx)
        self.icon = r"data/icon.png"
        self.json_to_kivy_parser = KivyJSONtoTextParser(ctx)
        self.log_panels = {}

        # keep track of last used command to autofill on click
        self.last_autofillable_command = "hint"
        autofillable_commands = ("hint_location", "hint", "getitem")
        original_say = ctx.on_user_say

        def intercept_say(text):
            text = original_say(text)
            if text:
                for command in autofillable_commands:
                    if text.startswith("!" + command):
                        self.last_autofillable_command = command
                        break
            return text

        ctx.on_user_say = intercept_say

        super(GameManager, self).__init__()

    def build(self):
        self.container = ContainerLayout()

        self.grid = MainLayout()
        self.grid.cols = 1
        self.connect_layout = BoxLayout(orientation="horizontal", size_hint_y=None, height=30)
        # top part
        server_label = ServerLabel()
        self.connect_layout.add_widget(server_label)
        self.server_connect_bar = ConnectBarTextInput(text="archipelago.gg", size_hint_y=None, height=30, multiline=False,
                                                      write_tab=False)
        self.server_connect_bar.bind(on_text_validate=self.connect_button_action)
        self.connect_layout.add_widget(self.server_connect_bar)
        self.server_connect_button = Button(text="Connect", size=(100, 30), size_hint_y=None, size_hint_x=None)
        self.server_connect_button.bind(on_press=self.connect_button_action)
        self.connect_layout.add_widget(self.server_connect_button)
        self.grid.add_widget(self.connect_layout)
        self.progressbar = ProgressBar(size_hint_y=None, height=3)
        self.grid.add_widget(self.progressbar)

        # middle part
        self.tabs = TabbedPanel(size_hint_y=1)
        self.tabs.default_tab_text = "All"
        self.log_panels["All"] = self.tabs.default_tab_content = UILog(*(logging.getLogger(logger_name)
                                                                         for logger_name, name in
                                                                         self.logging_pairs))

        for logger_name, display_name in self.logging_pairs:
            bridge_logger = logging.getLogger(logger_name)
            panel = TabbedPanelItem(text=display_name)
            self.log_panels[display_name] = panel.content = UILog(bridge_logger)
            self.tabs.add_widget(panel)

        self.grid.add_widget(self.tabs)

        if len(self.logging_pairs) == 1:
            # Hide Tab selection if only one tab
            self.tabs.clear_tabs()
            self.tabs.do_default_tab = False
            self.tabs.current_tab.height = 0
            self.tabs.tab_height = 0

        # bottom part
        bottom_layout = BoxLayout(orientation="horizontal", size_hint_y=None, height=30)
        info_button = Button(height=30, text="Command:", size_hint_x=None)
        info_button.bind(on_release=self.command_button_action)
        bottom_layout.add_widget(info_button)
        self.textinput = TextInput(size_hint_y=None, height=30, multiline=False, write_tab=False)
        self.textinput.bind(on_text_validate=self.on_message)

        def text_focus(event):
            """Needs to be set via delay, as unfocusing happens after on_message"""
            self.textinput.focus = True

        self.textinput.text_focus = text_focus
        bottom_layout.add_widget(self.textinput)
        self.grid.add_widget(bottom_layout)
        self.commandprocessor("/help")
        Clock.schedule_interval(self.update_texts, 1 / 30)
        self.container.add_widget(self.grid)
        return self.container

    def update_texts(self, dt):
        self.tabs.content.children[0].fix_heights()  # TODO: remove this when Kivy fixes this upstream
        if self.ctx.server:
            self.title = self.base_title + " " + Utils.__version__ + \
                         f" | Connected to: {self.ctx.server_address} " \
                         f"{'.'.join(str(e) for e in self.ctx.server_version)}"
            self.server_connect_button.text = "Disconnect"
            self.progressbar.max = len(self.ctx.checked_locations) + len(self.ctx.missing_locations)
            self.progressbar.value = len(self.ctx.checked_locations)
        else:
            self.server_connect_button.text = "Connect"
            self.title = self.base_title + " " + Utils.__version__
            self.progressbar.value = 0

    def command_button_action(self, button):
        if self.ctx.server:
            logging.getLogger("Client").info("/help for client commands and !help for server commands.")
        else:
            logging.getLogger("Client").info("/help for client commands and once you are connected, "
                                             "!help for server commands.")

    def connect_button_action(self, button):
        if self.ctx.server:
            self.ctx.server_address = None
            asyncio.create_task(self.ctx.disconnect())
        else:
            asyncio.create_task(self.ctx.connect(self.server_connect_bar.text.replace("/connect ", "")))

    def on_stop(self):
        # "kill" input tasks
        for x in range(self.ctx.input_requests):
            self.ctx.input_queue.put_nowait("")
        self.ctx.input_requests = 0

        self.ctx.exit_event.set()

    def on_message(self, textinput: TextInput):
        try:
            input_text = textinput.text.strip()
            textinput.text = ""

            if self.ctx.input_requests > 0:
                self.ctx.input_requests -= 1
                self.ctx.input_queue.put_nowait(input_text)
            elif input_text:
                self.commandprocessor(input_text)

            Clock.schedule_once(textinput.text_focus)

        except Exception as e:
            logging.getLogger("Client").exception(e)

    def print_json(self, data: typing.List[JSONMessagePart]):
        text = self.json_to_kivy_parser(data)
        self.log_panels["Archipelago"].on_message_markup(text)
        self.log_panels["All"].on_message_markup(text)

    def enable_energy_link(self):
        if not hasattr(self, "energy_link_label"):
            self.energy_link_label = Label(text="Energy Link: Standby",
                                           size_hint_x=None, width=150)
            self.connect_layout.add_widget(self.energy_link_label)

    def set_new_energy_link_value(self):
        if hasattr(self, "energy_link_label"):
            self.energy_link_label.text = f"EL: {Utils.format_SI_prefix(self.ctx.current_energy_link_value)}J"


class FactorioManager(GameManager):
    logging_pairs = [
        ("Client", "Archipelago"),
        ("FactorioServer", "Factorio Server Log"),
        ("FactorioWatcher", "Bridge Data Log"),
    ]
    base_title = "Archipelago Factorio Client"


class ChecksFinderManager(GameManager):
    logging_pairs = [
        ("Client", "Archipelago")
    ]
    base_title = "Archipelago ChecksFinder Client"


class SNIManager(GameManager):
    logging_pairs = [
        ("Client", "Archipelago"),
        ("SNES", "SNES"),
    ]
    base_title = "Archipelago SNI Client"


class TextManager(GameManager):
    logging_pairs = [
        ("Client", "Archipelago")
    ]
    base_title = "Archipelago Text Client"


class FF1Manager(GameManager):
    logging_pairs = [
        ("Client", "Archipelago")
    ]
    base_title = "Archipelago Final Fantasy 1 Client"

class OoTManager(GameManager):
    logging_pairs = [
        ("Client", "Archipelago")
    ]
    base_title = "Archipelago Ocarina of Time Client"


class LogtoUI(logging.Handler):
    def __init__(self, on_log):
        super(LogtoUI, self).__init__(logging.INFO)
        self.on_log = on_log

    def handle(self, record: logging.LogRecord) -> None:
        self.on_log(self.format(record))


class UILog(RecycleView):
    cols = 1

    def __init__(self, *loggers_to_handle, **kwargs):
        super(UILog, self).__init__(**kwargs)
        self.data = []
        for logger in loggers_to_handle:
            logger.addHandler(LogtoUI(self.on_log))

    def on_log(self, record: str) -> None:
        self.data.append({"text": escape_markup(record)})

    def on_message_markup(self, text):
        self.data.append({"text": text})

    def fix_heights(self):
        """Workaround fix for divergent texture and layout heights"""
        for element in self.children[0].children:
            if element.height != element.texture_size[1]:
                element.height = element.texture_size[1]


class E(ExceptionHandler):
    logger = logging.getLogger("Client")

    def handle_exception(self, inst):
        self.logger.exception("Uncaught Exception:", exc_info=inst)
        return ExceptionManager.PASS


class KivyJSONtoTextParser(JSONtoTextParser):

    def _handle_color(self, node: JSONMessagePart):
        colors = node["color"].split(";")
        node["text"] = escape_markup(node["text"])
        for color in colors:
            color_code = self.color_codes.get(color, None)
            if color_code:
                node["text"] = f"[color={color_code}]{node['text']}[/color]"
                return self._handle_text(node)
        return self._handle_text(node)


ExceptionManager.add_handler(E())

Builder.load_file(Utils.local_path("data", "client.kv"))