import json
import os
import re
from reportlab.lib.units import cm


class Card(object):

    sets = None
    types = None
    type_names = None
    bonus_regex = None

    class CardJSONEncoder(json.JSONEncoder):

        def default(self, obj):
            if isinstance(obj, Card):
                return obj.__dict__
            return json.JSONEncoder.default(self, obj)

    @staticmethod
    def decode_json(obj):
        return Card(**obj)

    def __init__(self, name=None, cardset='', types=None, cost='', description='',
                 potcost=0, debtcost=0, extra='', count=-1, card_tag='missing card_tag',
                 cardset_tags=None, group_tag='', group_top=False, image=None,
                 text_icon=None, randomizer=True, cardset_tag=''):

        if types is None:
            types = []  # make sure types is a list
        if cardset_tags is None:
            cardset_tags = []  # make sure cardset_tags is a list
        if name is None:
            name = card_tag  # make sure there is a meaningful default name

        self.name = name.strip()
        self.cardset = cardset.strip()
        self.types = types
        self.types_name = ""
        self.cost = cost
        self.description = description
        self.potcost = potcost
        self.debtcost = debtcost
        self.extra = extra
        self.card_tag = card_tag
        self.cardset_tags = cardset_tags
        self.group_tag = group_tag
        self.group_top = group_top
        self.image = image
        self.text_icon = text_icon
        self.cardset_tag = cardset_tag
        self.setCardCount(count)
        self.randomizer = randomizer

    def getCardCount(self):
        return sum(i for i in self.count)

    def setCardCount(self, value):
        if value < 0:
            self.count = [self.getType().getTypeDefaultCardCount()]
        elif value == 0:
            self.count = []
        else:
            self.count = [int(value)]

    def addCardCount(self, value):
        self.count.extend(value)

    def getStackHeight(self, thickness):
        # return height of the stacked cards in cm.  Using hight in cm of a stack of 60 Copper cards as thickness.
        return self.getCardCount() * cm * (thickness / 60.0) + 2

    def getType(self):
        return Card.types[tuple(self.types)]

    def getBonusBoldText(self, text):
        for regex in Card.bonus_regex:
            text = re.sub(regex, '<b>\\1</b>', text)
        return text

    @staticmethod
    def addBonusRegex(bonus):
        # Each bonus_regex matches the bonus keywords to be highlighted
        # This only needs to be done once per language
        if Card.bonus_regex is None:
            # initialize the information holder
            Card.bonus_regex = []

        # Make sure have minimum to to anything
        if not isinstance(bonus, dict):
            return
        if 'include' not in bonus:
            return
        if not bonus['include']:
            return
        if 'exclude' not in bonus:
            bonus['exclude'] = []

        # Start processing of lists into a single regex statement
        # (?i) makes this case insensitive
        # (?!\<b\>) and (?!\<\/b\>) prevents matching already bolded items
        # (?!\w) prevents smaller word matches.  Prevents matching "Action" in "Actions"
        if bonus['exclude']:
            bonus['exclude'].sort(reverse=True)
            exclude_regex = r'(?!\w)(?!\s*(' + '|'.join(bonus['exclude']) + '))'
        else:
            exclude_regex = ''

        bonus['include'].sort(reverse=True)
        include_regex = r"(\+\s*\d+\s*(" + '|'.join(bonus['include']) + "))"
        regex = r"((?i)(?!\<b\>)" + include_regex + exclude_regex + r"(?!\<\/b\>))"
        Card.bonus_regex.append(regex)

    def __repr__(self):
        return '"' + self.name + '"'

    def toString(self):
        return self.name + ' ' + self.cardset + ' ' + '-'.join(self.types)\
            + ' ' + self.cost + ' ' + self.description + ' ' + self.extra

    def isType(self, what):
        return what in self.getType().getTypeNames()

    def isExpansion(self):
        return self.isType('Expansion')

    def isEvent(self):
        return self.isType('Event')

    def isLandmark(self):
        return self.isType('Landmark')

    def isPrize(self):
        return self.isType('Prize')

    def get_total_cost(self, c):
        # Return a tuple that represents the total cost of card c
        # Hightest cost cards are in order:
        # - Landmarks to sort at the very end
        # - cards with * since that can mean anything
        # - cards with numeric errors
        # convert cost (a string) into a number
        if c.isLandmark():
            c_cost = 999
        elif not c.cost:
            c_cost = 0     # if no cost, treat as 0
        elif '*' in c.cost:
            c_cost = 998  # make it a really big number
        else:
            try:
                c_cost = int(c.cost)
            except ValueError:
                c_cost = 997  # can't, so make it a really big number

        return c_cost, c.potcost, c.debtcost

    def set_lowest_cost(self, other):
        # set self cost fields to the lower of the two's total cost
        self_cost = self.get_total_cost(self)
        other_cost = self.get_total_cost(other)
        if other_cost < self_cost:
            self.cost = other.cost
            self.potcost = other.potcost
            self.debtcost = other.debtcost

    def setImage(self):
        setImage = None
        if self.image is not None:
            setImage = self.image
        else:
            if self.cardset_tag in Card.sets:
                if 'image' in Card.sets[self.cardset_tag]:
                    setImage = Card.sets[self.cardset_tag]['image']

        if setImage is None and self.cardset_tag != 'base':
            print 'warning, no set image for set "{}", card "{}"'.format(self.cardset, self.name)
        return setImage

    def setTextIcon(self):
        setTextIcon = None
        if self.text_icon:
            setTextIcon = self.text_icon
        else:
            if self.cardset_tag in Card.sets:
                if 'text_icon' in Card.sets[self.cardset_tag]:
                    setTextIcon = Card.sets[self.cardset_tag]['text_icon']

        if setTextIcon is None and self.cardset != 'base':
            print 'warning, no set text for set "{}", card "{}"'.format(self.cardset, self.name)
        return setTextIcon

    def isBlank(self):
        return self.isType('Blank')


class BlankCard(Card):

    def __init__(self, num):
        Card.__init__(self, str(num), 'extra', ('Blank',), 0)

    def isBlank(self):
        return True


class CardType(object):

    @staticmethod
    def decode_json(obj):
        return CardType(**obj)

    def __init__(self, card_type, card_type_image, defaultCardCount=10, tabTextHeightOffset=0, tabCostHeightOffset=-1):
        self.typeNames = tuple(card_type)
        self.tabImageFile = card_type_image
        self.defaultCardCount = defaultCardCount
        self.tabTextHeightOffset = tabTextHeightOffset
        self.tabCostHeightOffset = tabCostHeightOffset

    def getTypeDefaultCardCount(self):
        return self.defaultCardCount

    def getTypeNames(self):
        return self.typeNames

    def getTabImageFile(self):
        if not self.tabImageFile:
            return None
        return self.tabImageFile

    def getTabTextHeightOffset(self):
        return self.tabTextHeightOffset

    def getTabCostHeightOffset(self):
        return self.tabCostHeightOffset