#!/bin/bash

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

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

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

ynh_abort_if_errors

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

domain=$YNH_APP_ARG_DOMAIN
path_url=$YNH_APP_ARG_PATH
password=$YNH_APP_ARG_PASSWORD

app=$YNH_APP_INSTANCE_NAME

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

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

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

# Check if .well-known is available for this domain.
if is_url_handled --domain="$domain" --path="/.well-known/caldav" || is_url_handled --domain="$domain" --path="/.well-known/carddav"
then
    ynh_die --message="Another app already uses the domain $domain to serve a calDAV/cardDAV feature. Please use another domain."
fi

#=================================================
# 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

#=================================================
# STANDARD MODIFICATIONS
#=================================================
# INSTALL DEPENDENCIES
#=================================================
ynh_script_progression --message="Installing dependencies..." --weight=5

ynh_install_app_dependencies $pkg_dependencies

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

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

#=================================================
# DOWNLOAD, CHECK AND UNPACK SOURCE
#=================================================
ynh_script_progression --message="Setting up source files..." --weight=8

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"

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

# Create a dedicated NGINX config
ynh_add_nginx_config

#=================================================
# CREATE DEDICATED USER
#=================================================
ynh_script_progression --message="Configuring system user..." --weight=3

# Create a system user
ynh_system_user_create --username=$app

#=================================================
# PHP-FPM CONFIGURATION
#=================================================
ynh_script_progression --message="Configuring PHP-FPM..."

# Create a dedicated PHP-FPM config
ynh_add_fpm_config

#=================================================
# SPECIFIC SETUP
#=================================================
# INITIALIZE DATABASE
#=================================================
ynh_script_progression --message="Configuring Baïkal..." --weight=3

ynh_mysql_connect_as --user=$db_name --password="$db_pwd" --database=$db_name \
    < "${final_path}/Core/Resources/Db/MySQL/db.sql"

#=================================================
# CONFIGURE BAIKAL
#=================================================

bk_conf="${final_path}/config/baikal.yaml"
timezone=$(cat /etc/timezone)
password_hash=$(echo -n admin:BaikalDAV:$password | sha256sum | cut -d ' ' -f 1)
ynh_app_setting_set --app=$app --key=password_hash --value=$password_hash
path=${path_url%/}
deskey=$(ynh_string_random 24)
ynh_app_setting_set --app=$app --key=encrypt_key --value="$deskey"

ynh_add_config --template="../conf/baikal.yaml" --destination="$bk_conf"

# Disable installation
touch "${final_path}/Specific/INSTALL_DISABLED"

#=================================================
# GENERIC FINALIZATION
#=================================================
# SECURE FILES AND DIRECTORIES
#=================================================

# Set permissions
chown -R root: "$final_path"
chown $app "$final_path/config/baikal.yaml"
chmod 640 "$final_path/config/baikal.yaml"

#=================================================
# SETUP SSOWAT
#=================================================
ynh_script_progression --message="Configuring permissions..." --weight=2

# Allow public access on /
ynh_permission_update --permission="main"  --add="visitors"
# But restrain on /admin
ynh_permission_create --permission="admin" --url="/admin" --allowed="all_users"

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

ynh_systemd_action --service_name=nginx --action=reload

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

ynh_script_progression --message="Installation of Baïkal completed" --last