#!/usr/bin/env python3
# This is the entry point to a gunicorn app (not intended for standalone use)

import json
import time
import base64
import re

CACHE_TIMEOUT = 14400

import rapp.overview
import rapp.bat
import rapp.drafts

webmap = {
    '/api/overview': rapp.overview.run,
    '/api/bat/comments': rapp.bat.comments,
    '/api/bat/agenda': rapp.bat.agenda,
    '/api/bat/agenda/refresh': rapp.bat.agenda_forced,
    '/api/bat/publish': rapp.bat.publish,
    '/api/drafts/index': rapp.drafts.index,
    '/api/drafts/save': rapp.drafts.save,
    '/api/drafts/fetch': rapp.drafts.fetch,
    '/api/drafts/delete': rapp.drafts.delete,
    '/api/drafts/forgotten': rapp.drafts.forgotten,
}

def app(environ, start_fn):
    now = time.time()
    uri = environ.get('PATH_INFO', '/')
    if uri in webmap:
        user = None
        bauth = re.match(r"Basic (.+)", environ.get('HTTP_AUTHORIZATION', 'foo'))
        if bauth:
            bdec = base64.b64decode(bauth.group(1)).decode('utf-8')
            m = re.match("^(.+?):.+$", bdec)
            if m:
                user = m.group(1)
        if user:
            try:
                output = webmap[uri](environ, user)
            except Exception as e:
                output = {'okay': False, 'message': str(e)}
        else:
            output = {'okay': False, 'message': 'Not authorized'}
    else:
        output = {'okay': False, 'message': 'Unknown URI %s' % uri}
    
    output['took'] = int((time.time() - now) * 1000)
    out = json.dumps(output, indent = 2, sort_keys = True).encode('ascii')
    start_fn('200 OK', [('Content-Type', 'application/json'), ('Content-Length', str(len(out)))])
    return [out]