#!/bin/bash

#=================================================
# IMPORT GENERIC HELPERS
#=================================================

source _common.sh
source /usr/share/yunohost/helpers

# Install parameters are automatically saved as settings
#
# Settings are automatically loaded as bash variables
# in every app script context, therefore typically these will exist:
# - $domain
# - $path
# - $language
# ... etc
#
# Resources defined in the manifest are provisioned prior to this script
# and corresponding settings are also available, such as:
# - $install_dir
# - $port
# - $db_name
# ...

#
# $app is the app id (i.e. 'example' for first install,
# or 'example__2', '__3', ... for multi-instance installs)
#

#=================================================
# SETTINGS
#=================================================
ynh_script_progression --message="Storing installation settings..."

# Logging:
log_file="/var/log/$app/$app.log"
ynh_app_setting_set --app=$app --key=log_file --value="$log_file"

# Redis:
redis_db=$(ynh_redis_get_free_db)
ynh_app_setting_set --app=$app --key=redis_db --value="$redis_db"

# App settings:
ynh_app_setting_set --app=$app --key=default_from_email --value="$default_from_email"
ynh_app_setting_set --app=$app --key=admin_email --value="$admin_email"
ynh_app_setting_set --app=$app --key=debug_enabled --value="$debug_enabled"
ynh_app_setting_set --app=$app --key=log_level --value="$log_level"

#=================================================
# CHECK IF THE APP CAN BE INSTALLED WITH THESE ARGS
#=================================================
ynh_script_progression --message="Validating installation parameters..."

mkdir -p "$install_dir/media" "$install_dir/static"

#=================================================
# SETUP LOG FILE
#=================================================
ynh_script_progression --message="Setup logging..."

myynh_setup_log_file

# Use logrotate to manage application logfile(s)
ynh_use_logrotate --logfile="$log_file" --specific_user=$app

#=================================================
# PYTHON VIRTUALENV
#=================================================
ynh_script_progression --message="Create and setup Python virtualenv..." --weight=45
cp ../conf/requirements.txt "$data_dir/requirements.txt"
myynh_setup_python_venv

#=================================================
# copy config files
# ================================================
ynh_script_progression --message="Create $app configuration files..."

ynh_add_config --template="gunicorn.conf.py" --destination="$data_dir/gunicorn.conf.py"

ynh_add_config --template="manage.py" --destination="$data_dir/manage.py"
chmod -c +x "$data_dir/manage.py"

ynh_add_config --template="settings.py" --destination="$data_dir/settings.py"
ynh_add_config --template="setup_user.py" --destination="$data_dir/setup_user.py"
ynh_add_config --template="urls.py" --destination="$data_dir/urls.py"
ynh_add_config --template="wsgi.py" --destination="$data_dir/wsgi.py"

touch "$data_dir/local_settings.py"

#=================================================
# MIGRATE / COLLECTSTATIC / CREATEADMIN
#=================================================
ynh_script_progression --message="migrate/collectstatic/createadmin..." --weight=10

cd "$data_dir" || exit

# Just for debugging:
./manage.py diffsettings

./manage.py migrate --no-input
./manage.py collectstatic --no-input

# Create/update Django superuser (set unusable password, because auth done via SSOwat):
./manage.py create_superuser --username="$admin" --email="$(ynh_user_get_info "$admin" mail)"

# Check the configuration
# This may fail in some cases with errors, etc., but the app works and the user can fix issues later.
./manage.py check --deploy || true

#=================================================
# INTEGRATE SERVICE IN YUNOHOST
#=================================================
ynh_script_progression --message="Integrating service in YunoHost..."

yunohost service add --description $app $app

#=================================================
# GENERIC FINALIZATION
#=================================================
# SECURE FILES AND DIRECTORIES
#=================================================
ynh_script_progression --message="Set file permissions..."
myynh_fix_file_permissions

#=================================================
# SETUP SYSTEMD
#=================================================
ynh_script_progression --message="Configuring systemd service '$app'..." --weight=5

# https://yunohost.org/en/packaging_apps_helpers#ynh-add-systemd-config
# https://github.com/YunoHost/yunohost/blob/dev/helpers/systemd
ynh_add_systemd_config --service=$app --template="systemd.service"

#=================================================
# Start the app server via systemd
#=================================================
ynh_script_progression --message="Starting systemd service '$app'..." --weight=5

ynh_systemd_action --service_name=$app --action="start" --log_path="$log_file"

#=================================================
# NGINX CONFIGURATION
#=================================================
ynh_script_progression --message="Configuring nginx web server..."

# Create a dedicated nginx config
# https://yunohost.org/en/contribute/packaging_apps/helpers
# https://github.com/YunoHost/yunohost/blob/dev/helpers/nginx
ynh_add_nginx_config "public_path" "port"

#=================================================
# END OF SCRIPT
#=================================================

ynh_script_progression --message="Installation of $app completed" --last