#!/bin/bash

#=================================================
# GENERIC START
#=================================================

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

# Exit if an error occurs during the execution of the script
ynh_abort_if_errors

#=================================================
# Dealing with script's variables
#=================================================
# Note: variables are stored in a single location to avoid confusion
# and declaration sequencing issues.
# Arguments from Manifest
domain=$YNH_APP_ARG_DOMAIN
path_url=$YNH_APP_ARG_PATH
is_public=$YNH_APP_ARG_IS_PUBLIC
language=$YNH_APP_ARG_LANGUAGE
app=$YNH_APP_INSTANCE_NAME

# Installer variables
db_name=$(ynh_sanitize_dbid --db_name="$app")
db_pwd=$(ynh_string_random)	# Generate a random password
db_user=$db_name
final_path="/var/www/$app"
_homedir="/var/$app/"
_openproject_install_dat="/etc/openproject/installer.dat"


#=================================================
# CHECK IF THE APP CAN BE INSTALLED WITH THESE ARGS
#=================================================
ynh_script_progression --message="Validating installation parameters..." --weight=1

test ! -e "$final_path" || ynh_die --message="This path already contains a folder"

# Find a free port.
# This will only be used:
# - By OpenProject to fire app server listening to this port, and
# - Nginx to proxify on this.
port=$(ynh_find_port --port=6000)

# Register (book) web path
ynh_webpath_register --app="$app" --domain="$domain" --path_url="$path_url"

#=================================================
# STORE SETTINGS FROM MANIFEST
#=================================================
ynh_script_progression --message="Storing installation settings..." --weight=1

ynh_app_setting_set --app="$app" --key=db_name --value="$db_name"
ynh_app_setting_set --app="$app" --key=db_pwd --value="$db_pwd"
ynh_app_setting_set --app="$app" --key=domain --value="$domain"
ynh_app_setting_set --app="$app" --key=final_path --value="$final_path"
ynh_app_setting_set --app="$app" --key=homedir --value="$_homedir"
ynh_app_setting_set --app="$app" --key=is_public --value="$is_public"
ynh_app_setting_set --app="$app" --key=language --value="$language"
ynh_app_setting_set --app="$app" --key=path --value="$path_url"
ynh_app_setting_set --app="$app" --key=port --value="$port"

# Make app public if necessary
[ "$is_public" -eq 1 ] &&	ynh_app_setting_set --app="$app" --key=unprotected_uris --value="/"

#=================================================
# ENVIRONMENT SETUP
#=================================================
# Note: it follows: https://www.openproject.org/download-and-installation/

#=================================================
# CREATE DEDICATED USER
#=================================================
ynh_script_progression --message="Configuring system user..." --weight=1
ynh_system_user_create --username="$app" --home_dir="$_homedir" -s

#=================================================
# INSTALL DEPENDENCIES
#=================================================
ynh_script_progression --message="Installing OpenProject & its dependencies..." --weight=1

# Add Openproject Key & repo
# Var APT_KEY_DONT_WARN_ON_DANGEROUS_USAGE to disable the STDOUT redirection warning
wget -qO- https://dl.packager.io/srv/opf/openproject/key | APT_KEY_DONT_WARN_ON_DANGEROUS_USAGE=1 apt-key add - >/dev/null
wget -qO /etc/apt/sources.list.d/openproject.list https://dl.packager.io/srv/opf/openproject/stable/10/installer/debian/9.repo

ynh_install_app_dependencies "$pkg_dependencies" >> "$YNH_STDINFO"

#=================================================
# NGINX CONFIGURATION
#=================================================
ynh_script_progression --message="Configuring nginx web server..." --weight=1

ynh_add_nginx_config

#=================================================
# OPENPROJECT CONFIGURATION
#=================================================
ynh_script_progression --message="Configuring OpenProject..." --weight=1

#TODO Not sure about this email sending. To be tested.
cat >> "$_openproject_install_dat" << EOF
postgres/autoinstall reuse
postgres/db_host 127.0.0.1
postgres/db_port 5432
postgres/db_username $db_user
postgres/db_password $db_pwd
postgres/db_name $db_name
server/autoinstall skip
smtp/autoinstall smtp
smtp/authentication none
smtp/host 127.0.0.1
smtp/port 25
smtp/domain $domain
smtp/admin_email admin@$domain
memcached/autoinstall install

server/hostname $domain
server/ssl no
EOF

ynh_store_file_checksum --file="$_openproject_install_dat"


ynh_replace_string --match_string=".*PORT=.*" --replace_string="export PORT=$port" --target_file="/etc/default/openproject"

#=================================================
# CREATE A POSTGRESQL DATABASE
#=================================================
ynh_script_progression --message="Creating a PostgreSQL database..." --weight=1

ynh_psql_create_user "$db_user" "$db_pwd"
ynh_psql_create_db "$db_name" "$db_user" "$db_pwd"

#=================================================
# OPENPROJECT POST-INSTALL
#=================================================
# Note: This section is undocumented on the installer.

ynh_script_progression --message="Post-install of OpenProject" --weight=1

openproject configure >> "$YNH_STDINFO"

####=================================================
#### SETUP APPLICATION WITH CURL
####=================================================
###
#### Set the app as temporarily public for curl call
###ynh_script_progression --message="Configuring SSOwat..." --weight=1
###ynh_app_setting_set --app="$app" --key=skipped_uris --value="/"
#### Reload SSOwat config
###yunohost app ssowatconf
###
#### Reload Nginx
###ynh_systemd_action --service_name=nginx --action=reload
###
##### TODO REMOVE ? # Installation with curl
##### TODO REMOVE ? ynh_script_progression --message="Finalizing installation..." --weight=1
##### TODO REMOVE ? ynh_local_curl "/INSTALL_PATH" "key1=value1" "key2=value2" "key3=value3"
###
#### Remove the public access
###if [ $is_public -eq 0 ]
###then
###	ynh_app_setting_delete --app="$app" --key=skipped_uris
###fi

#=================================================
# GENERIC FINALIZATION
#=================================================
# SETUP LOGROTATE
ynh_script_progression --message="Configuring log rotation..." --weight=1
ynh_use_logrotate

# ADVERTISE SERVICE IN ADMIN PANEL
yunohost service add "$app" --log "/var/log/$app/$app.log"

# START SYSTEMD SERVICE
ynh_script_progression --message="Starting a systemd service..." --weight=1
# Compat YNH<3.5
#ynh_systemd_action --service_name="$app" --action="start" --log_path="/var/log/$app/$app.log"
systemctl restart openproject.service

## SETUP FAIL2BAN
#ynh_script_progression --message="Configuring fail2ban..." --weight=1
#
## Create a dedicated fail2ban config
#ynh_add_fail2ban_config --logpath="/var/log/nginx/${domain}-error.log" --failregex="Regex to match into the log for a failed login"

#=================================================
# SETUP SSOWAT
#=================================================
ynh_script_progression --message="Configuring SSOwat..." --weight=1


#=================================================
# RELOAD NGINX
#=================================================
ynh_script_progression --message="Reloading nginx web server..." --weight=1

systemctl reload nginx.service

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

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