#!/usr/bin/env python
# -*- mode: python; coding: utf-8; -*-
# ---------------------------------------------------------------------------#
#
# Copyright (C) 1998-2003 Markus Franz Xaver Johannes Oberhumer
# Copyright (C) 2003 Mt. Hood Playing Card Co.
# Copyright (C) 2005-2009 Skomoroh
# Copyright (C) 2017 LB
#
# This program is free software: you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation, either version 3 of the License, or
# (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program.  If not, see <http://www.gnu.org/licenses/>.
#
# ---------------------------------------------------------------------------#
# Note:
# Many classes or some methods of classes are dead code resulting from the tk
# implementation. If executed it would throw exceptions.
#
# Kivy Implementation used: MfxScrolledCanvas, MfxDialog (partly)

# imports
from __future__ import division
import logging

# PySol imports
from pysollib.mfxutil import kwdefault, KwStruct
from pysollib.settings import WIN_SYSTEM
from pysollib.mygettext import _

# Toolkit imports
from pysollib.kivy.tkutil import bind, unbind_destroy
from pysollib.kivy.tkutil import makeToplevel
from pysollib.kivy.tkcanvas import MfxCanvas
from pysollib.kivy.LApp import LImage
from pysollib.kivy.LApp import LTopLevel
from pysollib.kivy.LApp import LBoxLayout
from pysollib.kivy.LApp import LScrollView

# kivy
from kivy.uix.boxlayout import BoxLayout
from kivy.clock import Clock
from kivy.uix.label import Label
from kivy.uix.anchorlayout import AnchorLayout

# ************************************************************************
# * abstract base class for the dialogs in this module
# ************************************************************************


class MfxDialog:  # ex. _ToplevelDialog
    img = {}
    button_img = {}

    def __init__(self, parent, title="", resizable=False, default=-1):
        self.parent = parent
        self.status = 0
        self.button = default
        self.timer = None
        self.buttons = []
        self.accel_keys = {}
        self.top = makeToplevel(parent, title=title)

    def wmDeleteWindow(self, *event):
        self.status = 1
        raise SystemExit
        # return EVENT_HANDLED

    def mCancel(self, *event):
        self.status = 1
        raise SystemExit

    def mTimeout(self, *event):
        self.status = 2
        raise SystemExit

    def mDone(self, button):
        self.button = button
        raise SystemExit

    def altKeyEvent(self, event):
        key = event.char
        # key = unicode(key, 'utf-8')
        key = key.lower()
        button = self.accel_keys.get(key)
        if button is not None:
            self.mDone(button)

    def initKw(self, kw):
        kw = KwStruct(kw,
                      timeout=0, resizable=False,
                      text="", justify="center",
                      strings=(_("&OK"), ),
                      default=0,
                      width=0,
                      padx=20, pady=20,
                      bitmap=None, bitmap_side="left",
                      bitmap_padx=10, bitmap_pady=20,
                      image=None, image_side="left",
                      image_padx=10, image_pady=20,
                      )
        # default to separator if more than one button
        sep = len(kw.strings) > 1
        kwdefault(kw.__dict__, separator=sep)
        return kw

    def createFrames(self, kw):
        a = LBoxLayout(orientation="vertical")
        b = LBoxLayout(orientation="vertical")
        return a, b


# ************************************************************************
# Needed Labels.

class MfxSimpleEntry:
    pass


class MfxToolTip:
    pass

# ************************************************************************
# * replacement for the tk_dialog script
# ************************************************************************
# Kivy implementation helpers.


class FLabel(Label):
    def __init__(self, **kw):
        super(FLabel, self).__init__(**kw)

        self.bind(size=self.onUpdate)
        self.bind(pos=self.onUpdate)
        self.bind(text=self.onUpdate)

    def onUpdate(self, instance, size):
        self.size_hint_y = None
        self.text_size = self.width, None
        self.texture_update()
        self.height = self.texture_size[1]


class FText(LScrollView):
    def __init__(self, **kw):
        super(FText, self).__init__(**kw)

        self.label = FLabel(**kw)
        self.add_widget(self.label)


class MfxMessageDialog(MfxDialog):
    def __init__(self, parent, title, **kw):
        kw = self.initKw(kw)
        MfxDialog.__init__(self, parent, title, kw.resizable, kw.default)

        if (kw.image):
            image = LImage(texture=kw.image.texture, size_hint=(1, 1))
            self.top.add_widget(image)

        label = FText(text=kw.text, halign='center')
        self.top.add_widget(label)

        # LB
        # nicht automatisch ein neues spiel laden.
        if (title == "Game won"):
            self.status = 1
            # self.button = 0
        if (title == "Game finished"):
            self.status = 1
            # self.button =

# ************************************************************************
# *
# ************************************************************************


class MfxExceptionDialog(MfxMessageDialog):
    def __init__(self, parent, ex, title="Error", **kw):
        kw = KwStruct(kw, bitmap="error")
        text = kw.get("text", "")
        if not text.endswith("\n"):
            text = text + "\n"
        text = text + "\n"
        if isinstance(ex, EnvironmentError) and ex.filename is not None:
            t = "[Errno %s] %s:\n%s" % (
                ex.errno, ex.strerror, repr(ex.filename))
        else:
            t = str(ex)
        kw.text = text + t
        MfxMessageDialog.__init__(self, parent, title, **kw.getKw())


# ************************************************************************
# *
# ************************************************************************

class PysolAboutDialog(object):

    # Die einzige Instanz.
    AboutDialog = None

    def onClick(self, event):
        print('LTopLevel: onClick')
        PysolAboutDialog.AboutDialog.parent.popWork('AboutDialog')
        PysolAboutDialog.AboutDialog.running = False

    def __init__(self, app, parent, title, **kw):
        logging.info('PysolAboutDialog:')
        super(PysolAboutDialog, self).__init__()

        self._url = kw['url']
        logging.info('PysolAboutDialog: txt=%s' % title)

        text = kw['text']
        text = text + '\n' + self._url
        logging.info('PysolAboutDialog: txt=%s' % text)

        text = text + '\n\n' + 'Adaptation to Kivy/Android\n' + \
            ' Copyright (C) (2016-17) LB'

        self.parent = parent
        self.app = app
        self.window = None
        self.running = False
        self.status = 1  # -> von help.py so benötigt
        self.button = 0  # -> von help.py so benötigt

        # bestehenden Dialog rezyklieren.

        logging.info('PysolAboutDialog: 1')
        onlyone = PysolAboutDialog.AboutDialog
        if (onlyone and onlyone.running):
            return
        if (onlyone):
            onlyone.parent.pushWork('AboutDialog', onlyone.window)
            onlyone.running = True
            return

        # neuen Dialog aufbauen.

        window = LTopLevel(parent, title, size_hint=(1.0, 1.0))
        window.titleline.bind(on_press=self.onClick)
        self.parent.pushWork('AboutDialog', window)
        self.window = window
        self.running = True
        PysolAboutDialog.AboutDialog = self

        if kw['image']:
            image = LImage(texture=kw['image'].texture)
            image.size_hint = (1, 0.8)
            al = AnchorLayout()
            al.add_widget(image)
            al.size_hint = (1, 0.3)
            window.content.add_widget(al)

        label = FText(text=text, halign='center', size_hint=(1, 1))
        window.content.add_widget(label)

        '''
        label = LLabel(text=text)
        label.texture_update()
        label.size = label.texture_size
        image = LImage(texture=label.texture)
        window.content.add_widget(image)
        '''

# ************************************************************************
# * a simple tooltip
# ************************************************************************
# ToolTip - not used in Kivy - would not run without adaptations.


'''
class MfxTooltip:
    last_leave_time = 0

    def __init__(self, widget):
        # private vars
        self.widget = widget
        self.text = None
        self.timer = None
        self.cancel_timer = None
        self.tooltip = None
        self.label = None
        self.bindings = []
        self.bindings.append(self.widget.bind("<Enter>", self._enter))
        self.bindings.append(self.widget.bind("<Leave>", self._leave))
        self.bindings.append(self.widget.bind("<ButtonPress>", self._leave))
        # user overrideable settings
        self.timeout = 800                    # milliseconds
        self.cancel_timeout = 5000
        self.leave_timeout = 400
        self.relief = 'solid'
        self.justify = 'left'
        self.fg = "#000000"
        self.bg = "#ffffe0"
        self.xoffset = 0
        self.yoffset = 4

    def setText(self, text):
        self.text = text

    def _unbind(self):
        if self.bindings and self.widget:
            self.widget.unbind("<Enter>", self.bindings[0])
            self.widget.unbind("<Leave>", self.bindings[1])
            self.widget.unbind("<ButtonPress>", self.bindings[2])
            self.bindings = []

    def destroy(self):
        self._unbind()
        self._leave()

    def _enter(self, *event):
        after_cancel(self.timer)
        after_cancel(self.cancel_timer)
        self.cancel_timer = None
        timediff = time.time() - MfxTooltip.last_leave_time
        if timediff < self.leave_timeout / 1000.:
            self._showTip()
        else:
            self.timer = after(self.widget, self.timeout, self._showTip)

    def _leave(self, *event):
        after_cancel(self.timer)
        after_cancel(self.cancel_timer)
        self.timer = self.cancel_timer = None
        if self.tooltip:
            self.label.destroy()
            destruct(self.label)
            self.label = None
            self.tooltip.destroy()
            destruct(self.tooltip)
            self.tooltip = None
            MfxTooltip.last_leave_time = time.time()

    def _showTip(self):
        self.timer = None
        if self.tooltip or not self.text:
            return
#         if isinstance(self.widget, (Tkinter.Button, Tkinter.Checkbutton)):
#             if self.widget["state"] == 'disabled':
#                 return
        # x = self.widget.winfo_rootx()
        x = self.widget.winfo_pointerx()
        y = self.widget.winfo_rooty() + self.widget.winfo_height()
        x += self.xoffset
        y += self.yoffset
        self.tooltip = Tkinter.Toplevel()
        self.tooltip.wm_iconify()
        self.tooltip.wm_overrideredirect(1)
        self.tooltip.wm_protocol("WM_DELETE_WINDOW", self.destroy)
        self.label = Tkinter.Label(self.tooltip, text=self.text,
                                   relief=self.relief, justify=self.justify,
                                   fg=self.fg, bg=self.bg, bd=1, takefocus=0)
        self.label.pack(ipadx=1, ipady=1)
        self.tooltip.wm_geometry("%+d%+d" % (x, y))
        self.tooltip.wm_deiconify()
        self.cancel_timer = after(
            self.widget, self.cancel_timeout, self._leave)
        # self.tooltip.tkraise()
'''

# ************************************************************************
# * A canvas widget with scrollbars and some useful bindings.
# ************************************************************************
# Kivy implementation of MfxScrolledCanvas.


class LScrollFrame(BoxLayout):
    def __init__(self, **kw):
        super(LScrollFrame, self).__init__(orientation="vertical", **kw)


class MfxScrolledCanvas(object):
    def __init__(self, parent, hbar=True, vbar=True, propagate=False, **kw):
        kwdefault(kw, highlightthickness=0, bd=1, relief='sunken')
        self.parent = parent

        # workarea = parent.getWork()
        print('MfxScrolledCanvas: parent=%s' % (parent))

        super(MfxScrolledCanvas, self).__init__()
        self.createFrame(kw)
        self.canvas = None
        # do_scroll_x = None
        # do_scroll_y = None
        # self.hbar = None
        # self.vbar = None
        self.hbar_show = False
        self.vbar_show = False
        self.createCanvas(kw)
        # self.frame.grid_rowconfigure(0, weight=1)
        # self.frame.grid_columnconfigure(0, weight=1)
        # self.frame.grid_propagate(propagate)
        if hbar:
            self.createHbar()
            self.bindHbar()
        if vbar:
            self.createVbar()
            self.bindVbar()
        # self.canvas.focus_set()

    def destroy(self):
        logging.info('MfxRoot: destroy')
        self.unbind_all()
        self.canvas.destroy()
        self.frame.destroy()

    def pack(self, **kw):
        pass
        # self.frame.pack(**kw)

    def grid(self, **kw):
        pass
        # self.frame.grid(**kw)

    #
    #
    #

    def setTile(self, app, i, force=False):
        logging.info('MfxRoot: setTitle app=%s' % app)

        tile = app.tabletile_manager.get(i)

        print('setTile: (tile) %s, index=%s' % (tile, i))

        if tile is None or tile.error:
            return False

        # print i, tile
        if i == 0:
            assert tile.color
            assert tile.filename is None
        else:
            assert tile.color is None
            assert tile.filename
            assert tile.basename
        if not force:
            if (i == app.tabletile_index and
                    tile.color == app.opt.colors['table']):
                return False
        #
        print('setTile2: %s' % (tile.filename))

        if not self.canvas.setTile(
                tile.filename, tile.stretch, tile.save_aspect):
            tile.error = True
            return False

        print(
            'MfxScrolledCanvas: tile.color, app.top_bg %s, %s'
            % (tile.color, app.top_bg))
        if i == 0:
            if force:
                tile.color = app.opt.colors['table']
            self.canvas.config(bg=tile.color)
        else:
            if type(app.top_bg) is str:
                self.canvas.config(bg=app.top_bg)

        self.canvas.setTextColor(app.opt.colors['text'])
        return True
    #
    #
    #

    def deleteAllItems(self):
        logging.info('MfxRoot: deleteAllItems')
        # self.parent.getWork()
        # self.parent.popWork()
        # self.frame.clear_widgets()
        self.canvas.clear_widgets()

    def update_idletasks(self):
        logging.info('MfxRoot: update_idletasks')
        Clock.schedule_once(lambda x: self.canvas.canvas.ask_update)

    def unbind_all(self):
        unbind_destroy(self.hbar)
        unbind_destroy(self.vbar)
        unbind_destroy(self.canvas)
        unbind_destroy(self.frame)

    def createFrame(self, kw):
        logging.info('MfxRoot: createFrame')
        # width = kw.get("width")
        # height = kw.get("height")
        print('createFrame: kw=%s' % kw)
        # self.frame = Tkinter.Frame(self.parent, width=width, height=height)

        self.frame = LScrollFrame(size_hint=(1, 1))

        print("createFrame: self.parent %s" % str(self.frame))

    def createCanvas(self, kw):
        logging.info('MfxRoot: createCanvas')
        # bd = kw['bd']
        kw['bd'] = 0
        # relief = kw['relief']
        del kw['relief']
        # frame = Tkinter.Frame(self.frame, bd=bd, relief=relief)
        # frame.grid(row=0, column=0, sticky="news")
        '''
        self.canvas = MfxCanvas(self.frame, **kw)
        self.frame.add_widget(self.canvas)
        self.parent.pushWork(self.frame)
        '''
        self.canvas = MfxCanvas(self.parent, **kw)
        self.frame = self.canvas
        self.parent.pushWork('playground', self.frame)
        ''
        # self.canvas.pack(expand=True, fill='both')

    def createHbar(self):
        pass
        '''
        self.hbar = Tkinter.Scrollbar(self.frame, takefocus=0,
                                      orient="horizontal")
        self.canvas["xscrollcommand"] = self._setHbar
        self.hbar["command"] = self.canvas.xview
        self.hbar.grid(row=1, column=0, sticky="we")
        self.hbar.grid_remove()
        '''

    def createVbar(self):
        pass
        '''
        self.vbar = Tkinter.Scrollbar(self.frame, takefocus=0)
        self.canvas["yscrollcommand"] = self._setVbar
        self.vbar["command"] = self.canvas.yview
        self.vbar.grid(row=0, column=1, sticky="ns")
        self.vbar.grid_remove()
        '''

    def bindHbar(self, w=None):
        if w is None:
            w = self.canvas
        bind(w, "<KeyPress-Left>", self.unit_left)
        bind(w, "<KeyPress-Right>", self.unit_right)

    def bindVbar(self, w=None):
        if w is None:
            w = self.canvas
        bind(w, "<KeyPress-Prior>", self.page_up)
        bind(w, "<KeyPress-Next>", self.page_down)
        bind(w, "<KeyPress-Up>", self.unit_up)
        bind(w, "<KeyPress-Down>", self.unit_down)
        bind(w, "<KeyPress-Begin>", self.scroll_top)
        bind(w, "<KeyPress-Home>", self.scroll_top)
        bind(w, "<KeyPress-End>", self.scroll_bottom)
        # mousewheel support
        if WIN_SYSTEM == 'x11':
            bind(w, '<4>', self.mouse_wheel_up)
            bind(w, '<5>', self.mouse_wheel_down)
        # don't work on Linux
        # bind(w, '<MouseWheel>', self.mouse_wheel)

    def mouse_wheel(self, *args):
        pass

    def _setHbar(self, first, last):
        if self.canvas.busy:
            return
        sb = self.hbar
        if float(first) <= 0 and float(last) >= 1:
            sb.grid_remove()
            self.hbar_show = False
        else:
            if self.canvas.winfo_ismapped():
                sb.grid()
                self.hbar_show = True
        sb.set(first, last)

    def _setVbar(self, first, last):
        if self.canvas.busy:
            return
        sb = self.vbar
        if float(first) <= 0 and float(last) >= 1:
            sb.grid_remove()
            self.vbar_show = False
        else:
            if self.canvas.winfo_ismapped():
                sb.grid()
                self.vbar_show = True
        sb.set(first, last)

    def _xview(self, *args):
        if self.hbar_show:
            self.canvas.xview(*args)
        return 'break'

    def _yview(self, *args):
        if self.vbar_show:
            self.canvas.yview(*args)
        return 'break'

    def page_up(self, *event):
        return self._yview('scroll', -1, 'page')

    def page_down(self, *event):
        return self._yview('scroll', 1, 'page')

    def unit_up(self, *event):
        return self._yview('scroll', -1, 'unit')

    def unit_down(self, *event):
        return self._yview('scroll', 1, 'unit')

    def mouse_wheel_up(self, *event):
        return self._yview('scroll', -5, 'unit')

    def mouse_wheel_down(self, *event):
        return self._yview('scroll', 5, 'unit')

    def page_left(self, *event):
        return self._xview('scroll', -1, 'page')

    def page_right(self, *event):
        return self._xview('scroll', 1, 'page')

    def unit_left(self, *event):
        return self._xview('scroll', -1, 'unit')

    def unit_right(self, *event):
        return self._xview('scroll', 1, 'unit')

    def scroll_top(self, *event):
        return self._yview('moveto', 0)

    def scroll_bottom(self, *event):
        return self._yview('moveto', 1)

# ************************************************************************
# *
# ************************************************************************
# not used witch kivy. would not nun as it refers TkInter.


'''
class StackDesc:

    def __init__(self, game, stack):
        self.game = game
        self.stack = stack
        self.canvas = game.canvas
        self.bindings = []

        font = game.app.getFont('canvas_small')
        # print self.app.cardset.CARDW, self.app.images.CARDW
        cardw = game.app.images.CARDW
        x, y = stack.x + cardw / 2, stack.y
        text = stack.getHelp() + '\n' + stack.getBaseCard()
        text = text.strip()
        if text:
            frame = Tkinter.Frame(self.canvas)
            self.frame = frame
            label = Tkinter.Message(frame, font=font, text=text,
                                    width=cardw - 8, relief='solid',
                                    fg='#000000', bg='#ffffe0', bd=1)
            label.pack()
            self.label = label
            self.id = self.canvas.create_window(
                x, y, window=frame, anchor='n')
            self.bindings.append(label.bind(
                '<ButtonPress>', self._buttonPressEvent))
            # self.bindings.append(label.bind('<Enter>', self._enterEvent))
        else:
            self.id = None

    def _buttonPressEvent(self, *event):
        # self.game.deleteStackDesc()
        self.frame.tkraise()

    def _enterEvent(self, *event):
        self.frame.tkraise()

    def delete(self):
        if self.id:
            self.canvas.delete(self.id)
            for b in self.bindings:
                self.label.unbind('<ButtonPress>', b)
'''
