from markdown import markdown
from smartypants import smartyPants as smartypants

###### Decorators ######
def template(t):
    """ Wraps the decorator function's output with a
        template engine like Markdown or SmartyPants """
    def wrap(func):
        def d(*a, **k): return t(func(*a, **k))
        return d
    return wrap

class Nervous(object):
    def __init__(self):
        self.data = {}

    def add(self, id):
        """ Does not modify the function but does place
            it in our `data` dict for happiness' sake """
        def tally(func):
            if id in self.data: self.data[id] += [func]
            else: self.data[id] = [func]
            return func
        return tally
        
    def fire(self, id, *args):
        """ Iterate over the dict, applying each function
            and storing the results, passing a cumulative
            results `r` string each time """
        r = ('',)
        for f in self.data[id]: r = f(*(args+r))
        return r
nervous = Nervous()

###### Logic ######
chdire = ''
def index(req):
    import os
    global chdire
    chdire = os.path.dirname(req.filename)
    
    art = nervous.fire('find_art', req.args[4:])
    template = nervous.fire('find_template')
    return template % {
        'site': 'http://localhost:8080/baker',
        'content': art,
    }

@nervous.add('find_art')
@template(markdown)
@template(smartypants)
def folder_search(file, result):
    if not file: file = 'HomePage'
    file = '/art/' + file
    try:
        return open(chdire + file, 'r').read()
    except IOError:
        return "Cannot find %s" % file

@nervous.add('find_template')
def header_footer(result):
    file = chdire + '/templates/header_footer.html'
    return open(file).read()