"""
Website for Craftbroec RR stuff
"""

import os
import hashlib
import hmac
import subprocess
import shutil

from flask import jsonify, abort, request, send_from_directory
from app import app


@app.route('/')
def index():
    """Show index page"""
    return send_from_directory('static', 'index.html')


@app.route("/tutorial")
@app.route("/tutorial/book")
def tutorial_book():
    """Display book"""
    return send_from_directory('static', 'tutorial/book.pdf')


@app.route("/tutorial/article")
def tutorial_article():
    """Display book"""
    return send_from_directory('static', 'tutorial/article.pdf')


@app.route("/tutorial/dist")
def tutorial_dist():
    """Display book"""
    return send_from_directory('static', 'tutorial/dist.pdf')


@app.route("/tutorial.png")
def tutorial_dist_png():
    """Display book"""
    return send_from_directory('static', 'tutorial/dist.png')


@app.route('/typeset', methods=['GET', 'POST'])
def typeset():
    """Show index page"""
    working_dir = os.getcwd()
    if os.path.basename(working_dir) == 'rr':
        os.chdir('rr_tutorial')

    book_toc_size = os.path.getsize('master_book.toc') \
        if os.path.isfile('master_book.toc') else 0
    article_toc_size = os.path.getsize('master_article.toc') \
        if os.path.isfile('master_article.toc') else 0
    dist_toc_size = os.path.getsize('master_dist.toc') \
        if os.path.isfile('master_dist.toc') else 0

    subprocess.check_output(['xelatex', '-halt-on-error', 'master_book.tex'])
    subprocess.check_output(['xelatex', '-halt-on-error', 'master_article.tex'])
    subprocess.check_output(['./set.sh'])

    if book_toc_size != os.path.getsize('master_book.toc'):
        subprocess.check_output(['xelatex', '-halt-on-error', 'master_book.tex'])

    if article_toc_size != os.path.getsize('master_article.toc'):
        subprocess.check_output(['xelatex', '-halt-on-error', 'master_article.tex'])

    if dist_toc_size != os.path.getsize('master_dist.toc'):
        subprocess.check_output(['./set.sh'])

    shutil.copyfile('master_book.pdf', '../app/static/tutorial/book.pdf')
    shutil.copyfile('master_article.pdf', '../app/static/tutorial/article.pdf')
    shutil.copyfile('master_dist.pdf', '../app/static/tutorial/dist.pdf')

    subprocess.check_output(['./convert.sh'])
    shutil.copyfile('master_dist.png', '../app/static/tutorial/dist.png')

    os.chdir(working_dir)
    return jsonify(True)


@app.route('/deploy', methods=['POST'])
def deploy():
    """Run deploy script"""
    secret = os.environ["WEBHOOK_KEY"].encode('utf-8')
    digest = hmac.new(secret, request.data, hashlib.sha256).hexdigest()
    signature = request.headers['X-Gogs-Signature']
    if len(signature) < 2 or not hmac.compare_digest(signature, digest):
        abort(400, 'Invalid signature')

    subprocess.call(['pipenv', 'sync'])
    subprocess.call(['git', 'pull'])
    subprocess.call(['touch', 'flask.wsgi'])
    return jsonify(True)