#!/usr/bin/env python3
"""Monta a pagina de um jogo de PuzzleScript: o standalone_inlined.txt do repositorio (o modelo que o proprio editor
usa em "Export"), com o texto do jogo embutido e quatro mudancas nossas (ver build-puzzlescript-games.sh).
uso: make.py <standalone_inlined.txt> <jogo.txt> <slug> <bg> <fg> <riffwave.js> <saida.html>"""
import json, re, sys, html

template, game, slug, bg, fg, riff, out = sys.argv[1:8]
page = open(template, encoding='utf-8').read()
src = open(game, encoding='utf-8').read().replace('\r\n', '\n')
title = re.search(r'^title\s+(.+)$', src, re.M).group(1).strip()

def sub(old, new, count=1):
    global page
    assert page.count(old) == count, (old, page.count(old))
    page = page.replace(old, new)

# 1. a licenca GPL-2.0-only do riffwave.js fica de fora: bloco <script> inteiro trocado por uma versao nossa
start = page.index('/*\n * RIFFWAVE.js v0.02')
a = page.rindex('<script>', 0, start)
b = page.index('</script>', start) + len('</script>')
page = page[:a] + '<script>\n' + open(riff, encoding='utf-8').read() + '</script>' + page[b:]
assert 'Copyright (C) 2011' not in page and 'GNU General' not in page

# 2. progresso e preferencias no localStorage com prefixo do jogo (o original usa document.URL, que muda com o hash do bundle)
page = page.replace('document.URL', "'ps-%s:progress'" % slug)
sub("'puzzlescript:' + ", "'ps-%s:' + " % slug, 2)

# 3. sem link para o site do autor nem botao "hack" (que envia o codigo ao editor em puzzlescript.net)
footer = re.search(r'<div class="footer-links">.*?</div>\n', page, re.S)
page = page[:footer.start()] + page[footer.end():]
sub('<!--___SCRIPTINSERT___-->\n', '')

# 4. titulo, cores, CSP (nada sai do site) e o texto do jogo
csp = ("default-src 'none'; script-src 'unsafe-inline' 'unsafe-eval'; style-src 'unsafe-inline'; img-src data: blob:; media-src data: blob:")
sub('<meta charset="UTF-8">', '<meta charset="UTF-8">\n<meta http-equiv="Content-Security-Policy" content="%s">' % csp)
page = page.replace('___BGCOLOR___', bg).replace('___TEXTCOLOR___', fg)
page = page.replace('__GAMETITLE__', html.escape(title))
code = json.dumps(src).replace('<', '\\u003c').replace('\u2028', '\\u2028').replace('\u2029', '\\u2029')
sub('"__GAMEDAT__"', code)
open(out, 'w', encoding='utf-8', newline='\n').write(page)