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

"""

 (c) 2014 - Copyright Red Hat Inc

 Authors:

   Pierre-Yves Chibon <pingou@pingoured.fr></pingou@pingoured.fr>

"""

import flask

import os

import sys

from math import ceil

import pygit2

from sqlalchemy.exc import SQLAlchemyError

from straight.plugin import load

from progit.hooks import BaseHook

import progit.exceptions

import progit.lib

import progit.forms

from progit import APP, SESSION, LOG, cla_required, is_repo_admin

from progit.lib.model import BASE

def get_plugin_names():

    ''' Return the list of plugins names. '''

    plugins = load('progit.hooks', subclasses=BaseHook)

    output = [plugin.name for plugin in plugins]

    return output

def get_plugin_tables():

    ''' Return the list of all plugins. '''

    plugins = load('progit.hooks', subclasses=BASE)

    return plugins

def get_plugin(plugin_name):

    ''' Return the list of plugins names. '''

    plugins = load('progit.hooks', subclasses=BaseHook)

    for plugin in plugins:

        if plugin.name == plugin_name:

            return plugin

@APP.route('/<repo>/settings/<plugin>', methods=('GET', 'POST'))</plugin></repo>

@APP.route('/fork/<username>/<repo>/settings/<plugin>',</plugin></repo></username>

           methods=('GET', 'POST'))

@cla_required

def view_plugin(repo, plugin, username=None):

    """ Presents the settings of the project.

    """

    return view_plugin_page(repo, plugin, username=username, full=True)

@APP.route(

    '/<repo>/settings/<plugin>/<int:full>', methods=('GET', 'POST'))</int:full></plugin></repo>

@APP.route(

    '/fork/<username>/<repo>/settings/<plugin>/<int:full>',</int:full></plugin></repo></username>

    methods=('GET', 'POST'))

@cla_required

def view_plugin_page(repo, plugin, full, username=None):

    """ Presents the settings of the project.

    """

    repo = progit.lib.get_project(SESSION, repo, user=username)

    if not repo:

        flask.abort(404, 'Project not found')

    if not is_repo_admin(repo):

        flask.abort(

            403,

            'You are not allowed to change the settings for this project')

    plugin = get_plugin(plugin)

    fields = []

    new = True

    dbobj = plugin.db_object()

    if hasattr(repo, plugin.backref):

        dbobj = getattr(repo, plugin.backref)

        # There should always be only one, but let's double check

        if dbobj and len(dbobj) > 0:

            dbobj = dbobj[0]

            new = False

        else:

            dbobj = plugin.db_object()

    form = plugin.form(obj=dbobj)

    for field in plugin.form_fields:

        fields.append(getattr(form, field))

    if form.validate_on_submit():

        form.populate_obj(obj=dbobj)

        if new:

            dbobj.project_id = repo.id

            SESSION.add(dbobj)

        try:

            SESSION.flush()

        except SQLAlchemyError, err:

            SESSION.rollback()

            APP.logger.debug('Could not add plugin %s', plugin.name)

            APP.logger.exception(err)

            flask.flash(

                'Could not add plugin %s, please contact an admin'

                % plugin.name)

            return flask.render_template(

                'plugin.html',

                select='settings',

                full=full,

                repo=repo,

                username=username,

                plugin=plugin,

                form=form,

                fields=fields,

            )

        if form.active.data:

            # Set up the main script if necessary

            plugin.set_up(repo)

            # Install the plugin itself

            plugin.install(repo, dbobj)

            flask.flash('Hook activated')

        else:

            plugin.remove(repo)

            flask.flash('Hook inactived')

        SESSION.commit()

    return flask.render_template(

        'plugin.html',

        select='settings',

        full=full,

        repo=repo,

        username=username,

        plugin=plugin,

        form=form,

        fields=fields,

    )