#!/usr/bin/env python

# Updates static files for production.

from __future__ import absolute_import

import os
import subprocess
import argparse
import sys

# We need settings so we can figure out where the prod-static directory is.
sys.path.insert(0, os.path.join(os.path.dirname(__file__), '..'))
import scripts.lib.setup_path_on_import
os.environ['DJANGO_SETTINGS_MODULE'] = 'zproject.settings'
from django.conf import settings
from scripts.lib.node_cache import setup_node_modules

parser = argparse.ArgumentParser()
parser.add_argument('--prev-deploy', metavar='DIR',
                  help='a previous deploy from which to reuse files if possible')
args = parser.parse_args()
prev_deploy = args.prev_deploy

os.chdir(settings.DEPLOY_ROOT)

# Redirect child processes' output to a log file (most recent run only).
subprocess.check_call(["mkdir", "-p", "var/log"])
fp = open('var/log/update-prod-static.log', 'w')

# Install node packages
setup_node_modules(npm_args=['--production'], stdout=fp, stderr=fp)

# Compile Handlebars templates and minify JavaScript.
subprocess.check_call(['python', 'tools/minify-js']
                      + (['--prev-deploy', prev_deploy] if prev_deploy else []),
                      stdout=fp, stderr=fp)

# Build emoji
subprocess.check_call(['python', 'tools/setup/emoji_dump/build_emoji'],
                      stdout=fp, stderr=fp)

# Download and include zxcvbn.js
subprocess.check_call(['bash', '-ex', 'tools/setup/download-zxcvbn'],
                      stdout=fp, stderr=fp)

# Collect the files that we're going to serve.
subprocess.check_call(['python', './manage.py', 'collectstatic', '--noinput', '-i', 'assets'],
                      stdout=fp, stderr=fp)

# Compile translation strings to generate `.mo` files.
subprocess.check_call(['python', './manage.py', 'compilemessages'],
                      stdout=fp, stderr=fp)

# Move the source maps out of the serve/ directory and into their
# proper place.
subprocess.check_call(['rm', '-rf', 'prod-static/source-map'],
                      stdout=fp, stderr=fp)
subprocess.check_call(['mkdir', '-p', 'prod-static'],  # Needed if PRODUCTION
                      stdout=fp, stderr=fp)
subprocess.check_call(['mv', os.path.join(settings.STATIC_ROOT, 'source-map'),
                       'prod-static/source-map'],
                      stdout=fp, stderr=fp)

# Move language_options.json to the production release
subprocess.check_call(['cp', '-a', 'static/locale',
                       os.path.join(settings.STATIC_ROOT, 'locale')],
                      stdout=fp, stderr=fp)

fp.close()