#!/bin/bash

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

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

#=================================================
# MANAGE SCRIPT FAILURE
#=================================================

ynh_clean_setup () {
	true
}
# Exit if an error occurs during the execution of the script
ynh_abort_if_errors

#=================================================
# RETRIEVE ARGUMENTS FROM THE MANIFEST
#=================================================

domain=$YNH_APP_ARG_DOMAIN
path_url=$YNH_APP_ARG_PATH
is_public=$YNH_APP_ARG_IS_PUBLIC
language=$YNH_APP_ARG_LANGUAGE
password=$YNH_APP_ARG_PASSWORD
enable_ldap=$YNH_APP_ARG_ENABLE_LDAP
network_name=$YNH_APP_ARG_NETWORK_NAME
server_name=$YNH_APP_ARG_SERVER_NAME

app=$YNH_APP_INSTANCE_NAME

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

final_path=/opt/yunohost/$app
test ! -e "$final_path" || ynh_die --message="This path already contains a folder"
final_path_www=/var/www/$app
test ! -e "$final_path_www" || ynh_die --message="This path already contains a folder"

# 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=$app --key=domain --value=$domain
ynh_app_setting_set --app=$app --key=path --value=$path_url
ynh_app_setting_set --app=$app --key=language --value=$language
ynh_app_setting_set --app=$app --key=network_name --value=$network_name
ynh_app_setting_set --app=$app --key=server_name --value=$server_name
ynh_app_setting_set --app=$app --key=final_path_www --value=$final_path_www
ynh_app_setting_set --app=$app --key=final_path --value=$final_path

#=================================================
# STANDARD MODIFICATIONS
#=================================================
# FIND AND OPEN A PORT
#=================================================
ynh_script_progression --message="Finding an available port..." --weight=1

# Find an available port
port=$(ynh_find_port --port=6667) # Plaintext Port
secure_port=$(ynh_find_port --port=6697) # Secure Port

ynh_app_setting_set --app=$app --key=port --value=$port
ynh_app_setting_set --app=$app --key=secure_port --value=$secure_port

ynh_script_progression --message="Configuring firewall..." --weight=1
ynh_exec_warn_less yunohost firewall allow --no-upnp TCP $port
ynh_exec_warn_less yunohost firewall allow --no-upnp TCP $secure_port

#=================================================
# CREATE DEDICATED USER
#=================================================
ynh_script_progression --message="Configuring system user..." --weight=2

# Create a system user
ynh_system_user_create --username=$app --home_dir="$final_path" --groups="ssl-cert"

#=================================================
# CREATE A MYSQL DATABASE
#=================================================
ynh_script_progression --message="Creating a MySQL database..." --weight=1

db_name=$(ynh_sanitize_dbid --db_name=$app)
db_user=$db_name
ynh_app_setting_set --app=$app --key=db_name --value=$db_name
ynh_mysql_setup_db --db_user=$db_user --db_name=$db_name

#=================================================
# DOWNLOAD, CHECK AND UNPACK SOURCE
#=================================================
ynh_script_progression --message="Setting up source files..." --weight=10

ynh_app_setting_set --app=$app --key=final_path --value=$final_path
# Download, check integrity, uncompress and patch the source from app.src
ynh_setup_source --dest_dir="$final_path" --source_id=$YNH_ARCH
ynh_setup_source --dest_dir="$final_path" --source_id=ldap

chmod 750 "$final_path"
chmod -R o-rwx "$final_path"
chown -R $app:www-data "$final_path"
chmod +x "$final_path/ergo"

# Copy help file
mkdir -p "$final_path_www/help"
if test -e "$YNH_APP_BASEDIR/sources/extra_files/help"; then
    cp --archive "$YNH_APP_BASEDIR/sources/extra_files/help/." "$final_path_www/help"
fi
ynh_replace_vars --file="$final_path_www/help/index.html"

chmod 750 "$final_path_www"
chmod -R o-rwx "$final_path_www"
chown -R "www-data":"www-data" "$final_path_www"


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

# Create a dedicated NGINX config
ynh_add_nginx_config

#=================================================
# SPECIFIC SETUP
#=================================================
# ADD A CONFIGURATION
#=================================================
ynh_script_progression --message="Adding a configuration file..." --weight=2

# Get Password Hash
passwordhash=$((echo "$password"; echo "$password") | $final_path/ergo genpasswd)

# Enable ldap authentication if necessary

ldapoption=false

if [ $enable_ldap -eq 1 ]
then
	ldapoption=true
fi

server=$domain
ynh_add_config --template="../conf/default.yaml" --destination="$final_path/ircd.yaml"
ynh_add_config --template="../conf/ldap-config.yaml" --destination="$final_path/ldap-config.yaml"
ynh_add_config --template="../conf/ircd.motd" --destination="$final_path/ircd.motd"

chmod 400 "$final_path/ircd.yaml"
chown $app: "$final_path/ircd.yaml"

#=================================================
# SETUP SYSTEMD
#=================================================
ynh_script_progression --message="Configuring a systemd service..." --weight=3

# Create a dedicated systemd config
ynh_add_systemd_config

#=================================================
# GENERIC FINALIZATION
#=================================================
# SETUP LOGROTATE
#=================================================
ynh_script_progression --message="Configuring log rotation..." --weight=2

# Use logrotate to manage application logfile(s)
ynh_use_logrotate

#=================================================
# INTEGRATE SERVICE IN YUNOHOST
#=================================================

# Build the ports list
needed_ports=()
needed_ports+=( "$port" )
needed_ports+=( "$secure_port" )

ynh_script_progression --message="Integrating service in YunoHost..." --weight=1

yunohost service add $app --description="A modern IRC server" --log="/var/log/$app/$app.log" ${needed_ports:+--needs_exposed_ports} "${needed_ports[@]}"

#=================================================
# START SYSTEMD SERVICE
#=================================================
ynh_script_progression --message="Starting a systemd service..." --weight=1

# Start a systemd service
ynh_systemd_action --service_name=$app --action="start" --log_path="/var/log/$app/$app.log"

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

# Make app public if necessary
if [ $is_public -eq 1 ]
then
	# Everyone can access the app.
	# The "main" permission is automatically created before the install script.
	ynh_permission_update --permission="main" --add="visitors"
fi

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

ynh_systemd_action --service_name=nginx --action=reload

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

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