#!/bin/bash

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

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

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

ynh_clean_setup () {
	ynh_clean_check_starting
}
# 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=$YNH_APP_ARG_IS_PUBLIC
always_encrypt=$YNH_APP_ARG_ALWAYS_ENCRYPT

app=$YNH_APP_INSTANCE_NAME

secret=$(ynh_string_random)

#=================================================
# CHECK IF THE APP CAN BE INSTALLED WITH THESE ARGS
#=================================================
ynh_script_progression --message="Validating installation parameters..." --weight=2

final_path=/var/www/$app
test ! -e "$final_path" || 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=2

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=$app --key=is_public --value=$is_public
ynh_app_setting_set --app=$app --key=always_encrypt --value=$always_encrypt
ynh_app_setting_set --app=$app --key=secret --value="$secret"

ynh_app_setting_set --app=$app --key=overwrite_settings --value=1
ynh_app_setting_set --app=$app --key=overwrite_nginx --value=1
ynh_app_setting_set --app=$app --key=overwrite_systemd --value=1
ynh_app_setting_set --app=$app --key=admin_mail_html --value=1

#=================================================
# STANDARD MODIFICATIONS
#=================================================
# FIND AND OPEN A PORT
#=================================================
ynh_script_progression --message="Finding an available port..." --weight=3

# Find an available port
port=$(ynh_find_port --port=8095)
ynh_app_setting_set --app=$app --key=port --value=$port

#=================================================
# INSTALL DEPENDENCIES
#=================================================
ynh_script_progression --message="Installing dependencies..." --weight=60

ynh_install_app_dependencies $pkg_dependencies

#=================================================
# 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"

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

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"

chmod 750 "$final_path"
chmod -R o-rwx "$final_path"
chown -R $app:$app "$final_path"

#=================================================
# NGINX CONFIGURATION
#=================================================
ynh_script_progression --message="Configuring NGINX web server..." --weight=2

# Create a dedicated NGINX config
ynh_add_nginx_config

#=================================================
# SPECIFIC SETUP
#=================================================
# SETUP LUTIM
#=================================================
ynh_script_progression --message="Configure $app" --weight=2

# Configure Lutim
cp ../conf/lutim.conf.template "$final_path/lutim.conf"
ynh_replace_string --match_string="__DOMAIN__" --replace_string="$domain" --target_file="$final_path/lutim.conf"
ynh_replace_string --match_string="__PATH__" --replace_string="$path_url" --target_file="$final_path/lutim.conf"
ynh_replace_string --match_string="__PORT__" --replace_string="$port" --target_file="$final_path/lutim.conf"
ynh_replace_string --match_string="__ENCRYPT__" --replace_string="$always_encrypt" --target_file="$final_path/lutim.conf"

ynh_replace_string --match_string="__SECRET__" --replace_string="$secret" --target_file="$final_path/lutim.conf"

# Set the number of process for Lutim to twice the number of CPU core.
ynh_replace_string --match_string="__WORKERS__" --replace_string="$(( $(nproc) * 2 ))" --target_file="$final_path/lutim.conf"
# Calculate and store the config file checksum into the app settings
ynh_store_file_checksum --file="$final_path/lutim.conf"

#=================================================
# SETUP HOOKS FILE
#=================================================

ynh_replace_string --match_string="__APP__" --replace_string="$app" --target_file="../hooks/post_app_addaccess"
ynh_replace_string --match_string="__APP__" --replace_string="$app" --target_file="../hooks/post_app_removeaccess"

#=================================================
# SETUP SYSTEMD
#=================================================
ynh_script_progression --message="Configuring a systemd service..." --weight=2

# Create a dedicated systemd config
ynh_add_systemd_config

#=================================================
# SETUP CRON
#=================================================

ynh_add_config --template="../conf/cron_lutim" --destination="/etc/cron.d/$app"
chmod +x $final_path/script/lutim

#=================================================
# INSTALL LUTIM WITH CARTON
#=================================================
ynh_script_progression --message="Installing $app with Carton..." --weight=60

mkdir -p /var/log/$app/
(cd $final_path
carton install 2>&1 | tee -a "/var/log/$app/setup_carton.log")

# Use a perl path adapted to the system architecture
arch_dir=$(ls -1 $final_path/local/lib/perl5/ | grep linux-gnu)
if [ "$?" -ne 0 ]
then
    ynh_die --message="Unable to find the perl directory for your architecture."
fi
ynh_replace_string --match_string="__ARCHDIR__" --replace_string="$arch_dir" --target_file="$final_path/script/lutim"

#=================================================
# SETUP LOG FILE
#=================================================

# Making log a symbolic link to /var/log
touch /var/log/$app/production.log
chown $app -R /var/log/$app
ln -s /var/log/$app/production.log "$final_path/log/production.log"

#=================================================
# 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
#=================================================
ynh_script_progression --message="Integrating service in YunoHost..."

yunohost service add $app --log="$final_path/log/production.log"

#=================================================
# START SYSTEMD SERVICE
#=================================================
ynh_script_progression --message="Starting a systemd service..." --weight=6

# Wait for lutim to be fully started
ynh_systemd_action --action=restart --line_match="Manager.*started" --log_path="/var/log/$app/production.log" --timeout="120"
ynh_systemd_action --action=stop

# Set right permissions on new files created at first start
chown -R $app:$app $final_path

# Wait for lutim to be fully started
ynh_systemd_action --action=restart --line_match="Manager.*started" --log_path="/var/log/$app/production.log" --timeout="120"

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

ynh_permission_update --permission="main" --add="visitors"

# This is a fake permission without any URL.
# The purpose of this permission is only to trigger hooks post_app_add/removeaccess when it's modified.
# We can't use a real permission for now because the actual permision system doesn't support regex.
ynh_permission_create --permission="upload images" --allowed="visitors"

if [ $is_public -eq 0 ]
then
    # If the app is private, viewing images stays publicly accessible.
    if [ "$path_url" == "/" ]; then
        # If the path is /, clear it to prevent any error with the regex.
        path_url=""
    fi
    # Modify the domain to be used in a regex
    domain_regex=$(echo "$domain" | sed 's@-@.@g')
    ynh_app_setting_set --app=$app --key=protected_regex --value="$domain_regex$path_url/stats/?$","$domain_regex$path_url/manifest.webapp/?$","$domain_regex$path_url/?$","$domain_regex$path_url/[d-m]/.*$"

    # If the app is not public, then the "visitors" group doesn't have this permission
    ynh_permission_update --permission="upload images" --remove="visitors"
fi

#=================================================
# RELOAD NGINX
#=================================================
ynh_script_progression --message="Reloading NGINX web server..." --weight=2

ynh_systemd_action --service_name=nginx --action=reload

#=================================================
# SEND A README FOR THE ADMIN
#=================================================

# Get main domain and buid the URL of the admin panel of the app.
admin_panel="https://$(grep portal_domain /etc/ssowat/conf.json | cut -d'"' -f4)/yunohost/admin/#/apps/$app"

echo "You can find a config file at $final_path/lutim.conf

You can configure this app easily by using the experimental __URL_TAG1__config-panel feature__URL_TAG2__$admin_panel/config-panel__URL_TAG3__.
You can also find some specific actions for this app by using the experimental __URL_TAG1__action feature__URL_TAG2__$admin_panel/actions__URL_TAG3__.

If you're facing an issue or want to improve this app, please open a new issue in this __URL_TAG1__project__URL_TAG2__https://github.com/YunoHost-Apps/lutim_ynh__URL_TAG3__." > mail_to_send

ynh_send_readme_to_admin --app_message="mail_to_send" --recipients="root" --type=install

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

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