#coding=utf-8

from collections import OrderedDict

import tkinter as tk
from tkinter import ttk
import tkColorChooser as tkcc

from ..frames import GuiFrame, RepeatableFrame, ScrollableFrame
from ..frames import WidgetRepeater
from ..frames import SelectionFrame, RefreshableOptionMenu, NumericSpinbox
from ..frames.team import TeamSelectionButton
from ..variables import NotifyStringVar, NotifyIntVar, NotifyNumericVar

class VisualSettingsFrame(GuiFrame):
    DEFAULT_VALUES = {
        'width': 250,
        'height': 80,
        'margin': 60,
        'starting_position_indicators': 0,
        'finishing_position_indicators': 0,
        'team_boxes': {
            'label_length_limit': 25,
            'predict_teams': 1,
            'label_separator': ' / ',
            'label_placeholder': '??',
            'label_ellipsis': '(...)',
            'name_separator': '<br />',
            'name_prefix': '&nbsp;&nbsp;',
            'sort_eligible_first': 1
        }
    }

    def renderContent(self):
        self.startingPositionIndicators = NotifyIntVar()
        self.finishingPositionIndicators = NotifyIntVar()
        self.boxWidth = NotifyNumericVar()
        self.boxHeight = NotifyNumericVar()
        self.boxMargin = NotifyNumericVar()
        self.shortenTeamNames = NotifyIntVar()
        self.teamNameLength = NotifyNumericVar()
        self.teamNameEllipsis = NotifyStringVar()
        self.teamNamePredict = NotifyIntVar()
        self.teamNamePlaceholder = NotifyStringVar()
        self.teamNameSortPredictions = NotifyIntVar()
        self.teamLabelSeparator = NotifyStringVar()
        self.teamNameSeparator = NotifyStringVar()
        self.teamNamePrefix = NotifyStringVar()

        indicatorsFrame = ttk.LabelFrame(self, text='Znaczniki pozycji:')
        indicatorsFrame.grid(row=0, column=0, sticky=tk.W+tk.E+tk.N+tk.S)
        dimensionsFrame = ttk.LabelFrame(self, text='Wymiary tabelki meczu:')
        dimensionsFrame.grid(row=0, column=1, sticky=tk.W+tk.E+tk.N+tk.S)
        teamNamesFrame = ttk.LabelFrame(self, text='Nazwy teamów:')
        teamNamesFrame.grid(row=1, column=0, sticky=tk.W+tk.E+tk.N+tk.S)
        separatorsFrame = ttk.LabelFrame(self, text='Separatory nazw teamów:')
        separatorsFrame.grid(row=1, column=1, sticky=tk.W+tk.E+tk.N+tk.S)

        self._fieldsToEnable = []

        (ttk.Checkbutton(
            indicatorsFrame, text='początkowych',
            variable=self.startingPositionIndicators)).grid(
                row=0, column=0, sticky=tk.W)
        (ttk.Checkbutton(
            indicatorsFrame, text='końcowych',
            variable=self.finishingPositionIndicators)).grid(
                row=1, column=0, sticky=tk.W)

        (NumericSpinbox(
            dimensionsFrame, width=5, from_=1, to=999,
            textvariable=self.boxWidth)).grid(
                row=0, column=0, sticky=tk.W)
        (ttk.Label(dimensionsFrame, text='x')).grid(row=0, column=1)
        (NumericSpinbox(
            dimensionsFrame, width=5, from_=1, to=999,
            textvariable=self.boxHeight)).grid(
                row=0, column=2, sticky=tk.W)
        (ttk.Label(dimensionsFrame, text='odstępy')).grid(
            row=1, column=0, columnspan=2, sticky=tk.E)
        (NumericSpinbox(
            dimensionsFrame, width=5, from_=1, to=999,
            textvariable=self.boxMargin)).grid(
                row=1, column=2, sticky=tk.W)

        (ttk.Checkbutton(
            teamNamesFrame, text='skracaj do',
            variable=self.shortenTeamNames)).grid(
                row=0, column=0, columnspan=2)
        nameLength = NumericSpinbox(
            teamNamesFrame, width=5, from_=1, to=999,
            textvariable=self.teamNameLength)
        nameLength.grid(row=0, column=2, sticky=tk.W)
        lengthLabel = ttk.Label(teamNamesFrame, text='znaków')
        lengthLabel.grid(row=0, column=3, sticky=tk.W)
        ellipsisLabel = ttk.Label(teamNamesFrame, text='znacznik:')
        ellipsisLabel.grid(row=1, column=0, columnspan=2, sticky=tk.E)
        nameEllipsis = ttk.Entry(
            teamNamesFrame, width=5,
            textvariable=self.teamNameEllipsis)
        nameEllipsis.grid(row=1, column=2, sticky=tk.W)
        (ttk.Checkbutton(
            teamNamesFrame,
            text='przewiduj na podstawie trwających meczów',
            variable=self.teamNamePredict)).grid(
                row=2, column=0, columnspan=5)
        placeholderLabel = ttk.Label(
            teamNamesFrame, text='etykieta nieznanych teamów')
        placeholderLabel.grid(row=3, column=1, columnspan=3, sticky=tk.W)
        namePlaceholder = ttk.Entry(
            teamNamesFrame, width=5,
            textvariable=self.teamNamePlaceholder)
        namePlaceholder.grid(row=3, column=4, sticky=tk.W)
        predictSort = ttk.Checkbutton(
            teamNamesFrame, text='wyświetlaj najpierw pewne teamy',
            variable=self.teamNameSortPredictions)
        predictSort.grid(row=4, column=1, columnspan=4, sticky=tk.W)
        self._fieldsToEnable.append(
            (self.shortenTeamNames,
             [nameLength, nameEllipsis, lengthLabel, ellipsisLabel]))
        self._fieldsToEnable.append(
            (self.teamNamePredict,
             [namePlaceholder, placeholderLabel, predictSort]))

        (ttk.Label(separatorsFrame, text=' ')).grid(row=0, column=0)
        (ttk.Label(separatorsFrame, text='w drabince (skrócone nazwy)')).grid(
            row=0, column=1, sticky=tk.E)
        (ttk.Entry(
            separatorsFrame, width=8,
            textvariable=self.teamLabelSeparator)).grid(
                row=0, column=2, sticky=tk.W)
        (ttk.Label(separatorsFrame, text='w "dymkach" (pełne nazwy)')).grid(
            row=1, column=1, sticky=tk.E)
        (ttk.Entry(
            separatorsFrame, width=8,
            textvariable=self.teamNameSeparator)).grid(
                row=1, column=2, sticky=tk.W)
        (ttk.Label(separatorsFrame, text='prefiks pełnych nazw')).grid(
            row=2, column=1, sticky=tk.E)
        (ttk.Entry(
            separatorsFrame, width=8,
            textvariable=self.teamNamePrefix)).grid(
                row=2, column=2, sticky=tk.W)

        for var, fields in self._fieldsToEnable:
            var.trace('w', self._enableFields)
        self._enableFields()

        self.setValues({})

    def _enableFields(self, *args):
        for var, fields in self._fieldsToEnable:
            for field in fields:
                field.configure(state=tk.NORMAL if var.get() else tk.DISABLED)

    def setValues(self, values):
        default_values = self.DEFAULT_VALUES
        if 'team_boxes' in values:
            default_values['team_boxes'].update(values['team_boxes'])
            del values['team_boxes']
        default_values.update(values)
        values = default_values

        self.startingPositionIndicators.set(
            values['starting_position_indicators'])
        self.finishingPositionIndicators.set(
            values['finishing_position_indicators'])
        self.boxWidth.set(values['width'])
        self.boxHeight.set(values['height'])
        self.boxMargin.set(values['margin'])
        self.shortenTeamNames.set(
            values['team_boxes']['label_length_limit'] > 0)
        self.teamNameLength.set(values['team_boxes']['label_length_limit'])
        self.teamNameEllipsis.set(values['team_boxes']['label_ellipsis'])
        self.teamNamePredict.set(values['team_boxes']['predict_teams'])
        self.teamNamePlaceholder.set(values['team_boxes']['label_placeholder'])
        self.teamNameSortPredictions.set(
            values['team_boxes']['sort_eligible_first'])
        self.teamLabelSeparator.set(values['team_boxes']['label_separator'])
        self.teamNameSeparator.set(values['team_boxes']['name_separator'])
        self.teamNamePrefix.set(values['team_boxes']['name_prefix'])

    def getValues(self):
        return OrderedDict(
            {
                'width': self.boxWidth.get(default=250),
                'height': self.boxHeight.get(default=80),
                'margin': self.boxMargin.get(default=60),
                'starting_position_indicators': self.startingPositionIndicators.get(),
                'finishing_position_indicators': self.finishingPositionIndicators.get(),
                'team_boxes': {
                    'label_length_limit': self.teamNameLength.get(default=25) if self.shortenTeamNames else 0,
                    'predict_teams': self.teamNamePredict.get(),
                    'label_separator': self.teamLabelSeparator.get(),
                    'label_placeholder': self.teamNamePlaceholder.get(),
                    'label_ellipsis': self.teamNameEllipsis.get(),
                    'name_separator': self.teamNameSeparator.get(),
                    'name_prefix': self.teamNamePrefix.get(),
                    'sort_eligible_first': self.teamNameSortPredictions.get()
                }
            })


class MatchList(RefreshableOptionMenu):
    def __init__(self, *args, **kwargs):
        RefreshableOptionMenu.__init__(self, *args, **kwargs)
        self.winfo_toplevel().bind(
            '<<MatchListChanged>>', self.refreshOptions, add='+')
        self.configure(width=10)

    def getLabel(self, match):
        return match.label

    def getValues(self):
        try:
            return self.winfo_toplevel().getMatches()
        except tk.TclError:
            # we're probably being destroyed, ignore
            return []

    def getVarValue(self, match):
        return unicode(match.getMatchID())


class BoxPositionFrame(RepeatableFrame):
    def renderContent(self):
        self.match = NotifyStringVar()
        self.vertical = NotifyNumericVar()
        self.horizontal = NotifyNumericVar()
        self.matchBox = MatchList(self, self.match)
        self.matchBox.configure(width=20)
        self.matchBox.grid(row=0, column=0)

        (ttk.Label(self, text=' w pionie:')).grid(row=0, column=1)
        (NumericSpinbox(
            self, textvariable=self.vertical, from_=0, to=9999,
            width=5)).grid(
                row=0, column=2)
        (ttk.Label(self, text=' w poziomie (-1 = automatyczna):')).grid(
                row=0, column=3)
        (NumericSpinbox(
            self, textvariable=self.horizontal, from_=-1, to=9999,
            width=5)).grid(
                row=0, column=4)
        self.setValue([])

    def setValue(self, value):
        if len(value) > 1:
            self.match.set(value[0])
            self.vertical.set(value[1])
            if len(value) > 2:
                self.horizontal.set(value[2])
            else:
                self.horizontal.set(-1)
        else:
            self.match.set('')
            self.vertical.set(0)
            self.horizontal.set(-1)

    def getValue(self):
            horizontal = self.horizontal.get(default=-1)
            vertical = self.vertical.get(default=0)
            return (
                self.match.get(),
                [vertical, horizontal] if horizontal >= 0 else vertical)

class BoxPositionsFrame(ScrollableFrame):
    def renderContent(self, container):
        (ttk.Label(container, text='Pozycje tabelek meczów:')).pack(
            side=tk.TOP, anchor=tk.W)
        self.positions = WidgetRepeater(container, BoxPositionFrame)
        self.positions.pack(
            side=tk.TOP, fill=tk.BOTH, expand=True)

    def setValues(self, values):
        values = sorted(list(values.iteritems()), key=lambda v: int(v[0]))
        values_to_set = []
        for idx, val in enumerate(values):
            value = [val[0]]
            if isinstance(val[1], list):
                value += val[1]
            else:
                value.append(val[1])
            values_to_set.append(value)
        self.positions.setValue(values_to_set)

    def getValues(self):
        return OrderedDict(
            { match: config for match, config in self.positions.getValue() })

class LineStyle(GuiFrame):
    def _selectColour(self):
        colour = tkcc.askcolor(self._getColour())
        if colour is not None:
            self._setColour(colour[1])

    def _getColour(self):
        return self.colourBtn.cget('bg')

    def _setColour(self, colour):
        self.colourBtn.configure(bg=colour)

    def renderContent(self):
        self.hOffset = NotifyNumericVar()
        self.vOffset = NotifyNumericVar()

        (ttk.Label(self, text='kolor:')).grid(row=0, column=0)
        self.colourBtn = tk.Button(self, width=2, command=self._selectColour)
        self.colourBtn.grid(row=0, column=1)
        (ttk.Label(self, text='margines w poziomie:')).grid(row=0, column=2)
        (NumericSpinbox(
            self, textvariable=self.hOffset, from_=-50, to=50,
            width=5)).grid(row=0, column=3)
        (ttk.Label(self, text='margines w pionie:')).grid(row=0, column=4)
        (NumericSpinbox(
            self, textvariable=self.vOffset, from_=-50, to=50,
            width=5)).grid(row=0, column=5)

    def setValue(self, value):
        self._setColour(value[0])
        self.hOffset.set(value[1])
        self.vOffset.set(value[2])

    def getValue(self):
        return [self._getColour(), self.hOffset.get(), self.vOffset.get()]

class LineStylesFrame(GuiFrame):
    DEFAULT_VALUES = [
        ('winner', ('#00ff00', 5, -10),
         'Zwycięzcy meczów: '),
        ('loser', ('#ff0000', 20, 10),
         'Przegrani meczów: '),
        ('place_winner', ('#00dddd', 10, 2),
         'Pozycje startowe (wybierający): '),
        ('place_loser', ('#dddd00', 15, 9),
         'Pozycje startowe (wybierani): '),
        ('finish_winner', ('#00ff00', 5, -10),
         'Zwycięzcy meczów kończący rozgrywki: '),
        ('finish_loser', ('#ff0000', 20, 10),
         'Przegrani meczów kończący rozgrywki: ')
    ]
    CONFIG_KEYS = ['colour', 'h_offset', 'v_offset']

    def renderContent(self):
        self.lines = OrderedDict()
        for idx, line in enumerate(self.DEFAULT_VALUES):
            self.lines[line[0]] = LineStyle(self)
            self.lines[line[0]].grid(row=idx+1, column=1, sticky=tk.W)
            (ttk.Label(self, text=line[2])).grid(
                row=idx+1, column=0, sticky=tk.E)
        (ttk.Label(self, text='Kolory linii')).grid(
            row=0, column=0, columnspan=2, sticky=tk.W)

    def setValues(self, values):
        for line in self.DEFAULT_VALUES:
            value = list(line[1])
            for idx, key in enumerate(self.CONFIG_KEYS):
                key = '%s_%s' % (line[0], key)
                if key in values:
                    value[idx] = values[key]
            self.lines[line[0]].setValue(value)

    def getValues(self):
        config = OrderedDict()
        for line, widget in self.lines.iteritems():
            value = widget.getValue()
            for idx, key in enumerate(self.CONFIG_KEYS):
                config['%s_%s' % (line, key)] = value[idx]
        return config


class PositionsSelectionFrame(SelectionFrame):
    COLUMN_COUNT=10

    def __init__(self, *args, **kwargs):
        SelectionFrame.__init__(self, *args, **kwargs)
        self.winfo_toplevel().geometry(
            '%dx%d' % (
                self.COLUMN_COUNT * 40,
                (len(self.options) / self.COLUMN_COUNT + 2) * 25 + 30
            ))

    def renderHeader(self, container):
        (ttk.Label(container, text=self.title)).grid(
            row=0, column=0, columnspan=self.COLUMN_COUNT, sticky=tk.W)

    def renderOption(self, container, option, idx):
        (ttk.Checkbutton(
            container, text=str(self._mapValue(idx, option)),
            variable=self.values[self._mapValue(idx, option)]
        )).grid(
            row=(idx/self.COLUMN_COUNT)+1, column=idx%self.COLUMN_COUNT,
            sticky=tk.W)

class PositionStyleFrame(RepeatableFrame):
    def _setPositions(self, values):
        self.positions = values

    def renderContent(self):
        self.name = NotifyStringVar()
        self.description = NotifyStringVar()

        self.columnconfigure(1, weight=1)
        self.columnconfigure(5, weight=1)

        (ttk.Label(self, text='Styl:')).grid(row=0, column=0)
        (ttk.Entry(self, textvariable=self.name)).grid(
            row=0, column=1, sticky=tk.W+tk.E)

        (ttk.Label(self, text='Pozycje końcowe:')).grid(row=0, column=2)
        self.positionBtn = TeamSelectionButton(
            self, prompt='Wybierz pozycje końcowe:',
            dialogclass=PositionsSelectionFrame,
            callback=self._setPositions)
        self.positionBtn.grid(row=0, column=3)

        (ttk.Label(self, text='Opis w legendzie:')).grid(row=0, column=4)
        (ttk.Entry(self, textvariable=self.description)).grid(
            row=0, column=5, sticky=tk.W+tk.E)

        self.setValue({})

    def setValue(self, value):
        self.name.set(value['class'] if 'class' in value else '')
        self.positionBtn.setPositions(
            value['positions'] if 'positions' in value else [])
        self.description.set(value['caption'] if 'caption' in value else '')

    def getValue(self):
        config = OrderedDict({
            'class': self.name.get(),
            'positions': self.positions
        })
        caption = self.description.get()
        if caption:
            config['caption'] = caption
        return config

class PositionStylesFrame(ScrollableFrame):
    def renderContent(self, container):
        (ttk.Label(container, text='Klasyfikacja końcowa')).pack(
            side=tk.TOP, anchor=tk.W)
        self.styles = WidgetRepeater(container, PositionStyleFrame)
        self.styles.pack(side=tk.TOP, fill=tk.BOTH, expand=True)

    def setValues(self, values):
        self.styles.setValue(values)

    def getValues(self):
        return self.styles.getValue()

__all__ = ['VisualSettingsFrame', 'BoxPositionsFrame', 'LineStylesFrame', 'PositionStylesFrame']