#!/usr/bin/env python
import sys
import os
import zipfile
import shutil

libdir = os.path.join(os.path.dirname(os.path.realpath(__file__)), 'lib')
sys.path.append(libdir)
import utils
import jdecode
import cardlib
from cbow import CBOW
from namediff import Namediff

def main(fname, oname = None, verbose = True, encoding = 'std',
         gatherer = False, for_forum = False, for_mse = False,
         creativity = False, vdump = False, for_html = False):

    # there is a sane thing to do here (namely, produce both at the same time)
    # but we don't support it yet.
    if for_mse and for_html:
        print 'ERROR - decode.py - incompatible formats "mse" and "html"'
        return

    fmt_ordered = cardlib.fmt_ordered_default

    if encoding in ['std']:
        pass
    elif encoding in ['named']:
        fmt_ordered = cardlib.fmt_ordered_named
    elif encoding in ['noname']:
        fmt_ordered = cardlib.fmt_ordered_noname
    elif encoding in ['rfields']:
        pass
    elif encoding in ['old']:
        fmt_ordered = cardlib.fmt_ordered_old
    elif encoding in ['norarity']:
        fmt_ordered = cardlib.fmt_ordered_norarity
    elif encoding in ['vec']:
        pass
    elif encoding in ['custom']:
        ## put custom format decisions here ##########################
        
        ## end of custom format ######################################
        pass
    else:
        raise ValueError('encode.py: unknown encoding: ' + encoding)

    cards = jdecode.mtg_open_file(fname, verbose=verbose, fmt_ordered=fmt_ordered)

    if creativity:
        namediff = Namediff()
        cbow = CBOW()
        if verbose:
            print 'Computing nearest names...'
        nearest_names = namediff.nearest_par(map(lambda c: c.name, cards), n=3)
        if verbose:
            print 'Computing nearest cards...'
        nearest_cards = cbow.nearest_par(cards)
        for i in range(0, len(cards)):
            cards[i].nearest_names = nearest_names[i]
            cards[i].nearest_cards = nearest_cards[i]
        if verbose:
            print '...Done.'

    def hoverimg(cardname, dist, nd):
        truename = nd.names[cardname]
        code = nd.codes[cardname]
        namestr = ''
        if for_html:
            if code:
                namestr = ('<div class="hover_img"><a href="#">' + truename 
                           + '<span><img style="background: url(http://magiccards.info/scans/en/' + code
                           + ');" alt=""/></span></a>' + ': ' + str(dist) + '\n</div>\n')
            else:
                namestr = '<div>' + truename + ': ' + str(dist) + '</div>'
        elif for_forum:
            namestr = '[card]' + truename + '[/card]' + ': ' + str(dist) + '\n'
        else:
            namestr = truename + ': ' + str(dist) + '\n'
        return namestr 

    def writecards(writer):
        if for_mse:
            # have to prepend a massive chunk of formatting info
            writer.write(utils.mse_prepend)

        if for_html:
            # have to preapend html info
            writer.write(utils.html_prepend)
            # seperate the write function to allow for writing smaller chunks of cards at a time
            segments = sort_colors(cards)
            for i in range(len(segments)):
                # sort color by CMC
                segments[i] = sort_cmc(segments[i])
                # this allows card boxes to be colored for each color 
                # for coloring of each box seperately cardlib.Card.format() must change non-minimaly
                writer.write('<div id="' + utils.segment_ids[i] + '">')
                writehtml(writer, segments[i])
                writer.write("</div><hr>")
            # closing the html file
            writer.write(utils.html_append)
            return #break out of the write cards funcrion to avoid writing cards twice


        for card in cards:
            if for_mse:
                writer.write(card.to_mse().encode('utf-8'))
                fstring = ''
                if card.json:
                    fstring += 'JSON:\n' + card.json + '\n'
                if card.raw: 
                    fstring += 'raw:\n' + card.raw + '\n'
                fstring += '\n'
                fstring += card.format(gatherer = gatherer, for_forum = for_forum,
                                       vdump = vdump) + '\n'
                fstring = fstring.replace('<', '(').replace('>', ')')
                writer.write(('\n' + fstring[:-1]).replace('\n', '\n\t\t'))
            else:
                fstring = card.format(gatherer = gatherer, for_forum = for_forum,
                                      vdump = vdump, for_html = for_html)
                writer.write((fstring + '\n').encode('utf-8'))

            if creativity:
                cstring = '~~ closest cards ~~\n'
                nearest = card.nearest_cards
                for dist, cardname in nearest:
                    cstring += hoverimg(cardname, dist, namediff)
                cstring += '~~ closest names ~~\n'
                nearest = card.nearest_names
                for dist, cardname in nearest:
                    cstring += hoverimg(cardname, dist, namediff)
                if for_mse:
                    cstring = ('\n\n' + cstring[:-1]).replace('\n', '\n\t\t')
                writer.write(cstring.encode('utf-8'))

            writer.write('\n'.encode('utf-8'))

        if for_mse:
            # more formatting info
            writer.write('version control:\n\ttype: none\napprentice code: ')
            

    def writehtml(writer, card_set):
        for card in card_set:
            fstring = card.format(gatherer = gatherer, for_forum = True,
                                      vdump = vdump, for_html = for_html)
            if creativity:
                fstring = fstring[:-6] # chop off the closing </div> to stick stuff in
            writer.write((fstring + '\n').encode('utf-8'))

            if creativity:
                cstring = '~~ closest cards ~~\n<br>\n'
                nearest = card.nearest_cards
                for dist, cardname in nearest:
                    cstring += hoverimg(cardname, dist, namediff)
                cstring += "<br>\n"
                cstring += '~~ closest names ~~\n<br>\n'
                nearest = card.nearest_names
                for dist, cardname in nearest:
                    cstring += hoverimg(cardname, dist, namediff)
                cstring = '<hr><div>' + cstring + '</div>\n</div>'
                writer.write(cstring.encode('utf-8'))

            writer.write('\n'.encode('utf-8'))

    # Sorting by colors
    def sort_colors(card_set):
        # Initialize sections
        red_cards = []
        blue_cards = []
        green_cards = []
        black_cards = []
        white_cards = []
        multi_cards = []
        colorless_cards = []
        lands = []
        for card in card_set:
            if len(card.get_colors())>1:
                multi_cards += [card]
                continue
            if 'R' in card.get_colors():
                red_cards += [card]
                continue
            elif 'U' in card.get_colors():
                blue_cards += [card]
                continue
            elif 'B' in card.get_colors():
                black_cards += [card]
                continue
            elif 'G' in card.get_colors():
                green_cards += [card]
                continue
            elif 'W' in card.get_colors():
                white_cards += [card]
                continue
            else:
                if "land" in card.get_types():
                    lands += [card]
                    continue
                colorless_cards += [card]
        return[white_cards, blue_cards, black_cards, red_cards, green_cards, multi_cards, colorless_cards, lands]

    def sort_cmc(card_set):
        sorted_cards = []
        sorted_set = []
        for card in card_set:
            # make sure there is an empty set for each CMC
            while len(sorted_cards)-1 < card.get_cmc():
                sorted_cards += [[]]
            # add card to correct set of CMC values
            sorted_cards[card.get_cmc()] += [card]
        # combine each set of CMC valued cards together
        for value in sorted_cards:
            for card in value:
                sorted_set += [card]
        return sorted_set


    if oname:
        if for_html:
            print oname
            # if ('.html' != oname[-])
            #     oname += '.html'
        if verbose:
            print 'Writing output to: ' + oname
        with open(oname, 'w') as ofile:
            writecards(ofile)
        if for_mse:
            # Copy whatever output file is produced, name the copy 'set' (yes, no extension).
            if os.path.isfile('set'):
                print 'ERROR: tried to overwrite existing file "set" - aborting.'
                return
            shutil.copyfile(oname, 'set')
            # Use the freaky mse extension instead of zip.
            with zipfile.ZipFile(oname+'.mse-set', mode='w') as zf:
                try:
                    # Zip up the set file into oname.mse-set.
                    zf.write('set') 
                finally:
                    if verbose:
                        print 'Made an MSE set file called ' + oname + '.mse-set.'
                    # The set file is useless outside the .mse-set, delete it.
                    os.remove('set') 
    else:
        writecards(sys.stdout)
        sys.stdout.flush()


if __name__ == '__main__':
    import argparse
    parser = argparse.ArgumentParser()
    
    parser.add_argument('infile', #nargs='?'. default=None,
                        help='encoded card file or json corpus to encode')
    parser.add_argument('outfile', nargs='?', default=None,
                        help='output file, defaults to stdout')
    parser.add_argument('-e', '--encoding', default='std', choices=utils.formats,
                        #help='{' + ','.join(formats) + '}',
                        help='encoding format to use',
    )
    parser.add_argument('-g', '--gatherer', action='store_true',
                        help='emulate Gatherer visual spoiler')
    parser.add_argument('-f', '--forum', action='store_true',
                        help='use pretty mana encoding for mtgsalvation forum')
    parser.add_argument('-c', '--creativity', action='store_true',
                        help='use CBOW fuzzy matching to check creativity of cards')
    parser.add_argument('-d', '--dump', action='store_true',
                        help='dump out lots of information about invalid cards')
    parser.add_argument('-v', '--verbose', action='store_true', 
                        help='verbose output')
    parser.add_argument('-mse', '--mse', action='store_true', 
                        help='use Magic Set Editor 2 encoding; will output as .mse-set file')
    parser.add_argument('-html', '--html', action='store_true', help='create a .html file with pretty forum formatting')

    args = parser.parse_args()

    main(args.infile, args.outfile, verbose = args.verbose, encoding = args.encoding,
         gatherer = args.gatherer, for_forum = args.forum, for_mse = args.mse,
         creativity = args.creativity, vdump = args.dump, for_html = args.html)

    exit(0)