import logging

from pylons import request, response, session, tmpl_context as c, url, app_globals as g

from pylons.controllers.util import abort, redirect

from pylons_app.lib.base import BaseController, render

import os

from mercurial import ui, hg

from mercurial.error import RepoError

from ConfigParser import ConfigParser

from pylons_app.lib import auth

from pylons_app.model.forms import LoginForm

import formencode

import formencode.htmlfill as htmlfill

from pylons_app.model import meta

from pylons_app.model.db import Users, UserLogs

from webhelpers.paginate import Page

log = logging.getLogger(__name__)

class AdminController(BaseController):

    def __before__(self):

        c.staticurl = g.statics

        c.admin_user = session.get('admin_user', False)

        c.admin_username = session.get('admin_username')

    def index(self):

        # Return a rendered template

        if request.POST:

            #import Login Form validator class

            login_form = LoginForm()

            try:

                c.form_result = login_form.to_python(dict(request.params))

                if auth.admin_auth(c.form_result['username'], c.form_result['password']):

                    session['admin_user'] = True

                    session['admin_username'] = c.form_result['username']

                    session.save()

                    return redirect(url('admin_home'))

                else:

                    raise formencode.Invalid('Login Error', None, None,

                                             error_dict={'username':'invalid login',

                                                         'password':'invalid password'})

            except formencode.Invalid, error:

                c.form_result = error.value

                c.form_errors = error.error_dict or {}

                html = render('/admin.html')

                return htmlfill.render(

                    html,

                    defaults=c.form_result,

                    encoding="UTF-8"

                )

        if c.admin_user:

            sa = meta.Session

            users_log = sa.query(UserLogs)\

                .order_by(UserLogs.action_date.desc())

            p = int(request.params.get('page', 1))

            c.users_log = Page(users_log, page=p, items_per_page=10)

        return render('/admin.html')

    def hgrc(self, dirname):

        filename = os.path.join(dirname, '.hg', 'hgrc')

        return filename

    def add_repo(self, new_repo):

        #extra check it can be add since it's the command

        if new_repo == '_admin':

            c.msg = 'DENIED'

            c.new_repo = ''

            return render('add.html')

        new_repo = new_repo.replace(" ", "_")

        new_repo = new_repo.replace("-", "_")

        try:

            self._create_repo(new_repo)

            c.new_repo = new_repo

            c.msg = 'added repo'

        except Exception as e:

            c.new_repo = 'Exception when adding: %s' % new_repo

            c.msg = str(e)

        return render('add.html')

    def _check_repo(self, repo_name):

        p = os.path.dirname(os.path.dirname(os.path.dirname(__file__)))

        config_path = os.path.join(p, 'hgwebdir.config')

        cp = ConfigParser()

        cp.read(config_path)

        repos_path = cp.get('paths', '/').replace("**", '')

        if not repos_path:

            raise Exception('Could not read config !')

        self.repo_path = os.path.join(repos_path, repo_name)

        try:

            r = hg.repository(ui.ui(), self.repo_path)

            hg.verify(r)

            #here we hnow that repo exists it was verified

            log.info('%s repo is already created', repo_name)

            raise Exception('Repo exists')

        except RepoError:

            log.info('%s repo is free for creation', repo_name)

            #it means that there is no valid repo there...

            return True

    def _create_repo(self, repo_name):

        if repo_name in [None, '', 'add']:

            raise Exception('undefined repo_name of repo')

        if self._check_repo(repo_name):

            log.info('creating repo %s in %s', repo_name, self.repo_path)

            cmd = """mkdir %s && hg init %s""" \

                    % (self.repo_path, self.repo_path)

            os.popen(cmd)

## -*- coding: utf-8 -*-

<%inherit file="base/base.html"/>

 <%def name="get_form_error(element)">

    %if type(c.form_errors) == dict:

        %if c.form_errors.get(element,False):

            <span class="error-message">

                ${c.form_errors.get(element,'')}

            </span>

        %endif

    %endif           

 </%def>

<%def name="title()">

    ${_('Repository managment')}

</%def>

<%def name="breadcrumbs()">

	${h.link_to(u'Home',h.url('/'))}

	 / 

	${h.link_to(u'Admin',h.url('admin_home'))}

</%def>

<%def name="page_nav()">

<li>${h.link_to(u'Home',h.url('/'))}</li>

<li class="current">${_('Admin')}</li>

</%def>

<%def name="main()">

    %if c.admin_user:

    <ul class="submenu">

        <li>

            ${h.link_to(u'Repos',h.url('repos'))}

        </li>

        <li>

            ${h.link_to(u'Users',h.url('users'))}

        </li>

    </ul>

    <br/>

    <div>

        <h2>Welcome ${c.admin_username}</h2>

    </div>

    %else:

        <div>

        <br />

        <h2>${_('Login')}</h2>

        ${h.form(h.url.current())}

        <table>

            <tr>

                <td>${_('Username')}</td>

                <td>${h.text('username')}</td>

                <td>${get_form_error('username')} </td>

            </tr>

            <tr>

                <td>${_('Password')}</td>

                <td>${h.password('password')}</td>

                <td>${get_form_error('password')}</td> 

            </tr>

            <tr>

                <td></td>

                <td>${h.submit('login','login')}</td>

            </tr>            

        </table>

        ${h.end_form()}

        </div>

    %endif

</%def>

## -*- coding: utf-8 -*-

##filters definition

<%namespace name="f" module="pylons_app.lib.filters" inheritable="True"/>

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">

<html xmlns="http://www.w3.org/1999/xhtml">

<head>

    <link rel="icon" href="${c.staticurl}hgicon.png" type="image/png" />

    <meta name="robots" content="index, nofollow"/>

    <link rel="stylesheet" href="${c.staticurl}style-monoblue.css" type="text/css" />

       <title>${next.title()}</title>

</head>

<body>

<div id="container">

    <div class="page-header">

        <h1>

            ${next.breadcrumbs()}

        </h1>

        <ul class="page-nav">

            ${next.page_nav()}

        </ul>

    </div>

    ${next.main()}

    <div class="page-footer">

        Mercurial App © 2010

    </div>   

    <div id="powered-by">

        <p>

        <a href="http://mercurial.selenic.com/" title="Mercurial">

            <img src="${c.staticurl}hglogo.png" width="75" height="90" alt="mercurial"/></a>

        </p>

    </div>

    <div id="corner-top-left"></div>

    <div id="corner-top-right"></div>

    <div id="corner-bottom-left"></div>

    <div id="corner-bottom-right"></div>

</div>

</body>