#!/bin/bash

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

source _common.sh
source experimental_helpers/ynh_add_swap
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
admin=$YNH_APP_ARG_ADMIN
admin_pwd=$YNH_APP_ARG_PASSWORD
is_public=$YNH_APP_ARG_IS_PUBLIC
language=$YNH_APP_ARG_LANGUAGE
title=$YNH_APP_ARG_TITLE
core_version=$(ynh_app_upstream_version)

admin_mail=$(ynh_user_get_info --username=$admin --key=mail)

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 --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..."

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=$app --key=admin --value="$admin"
ynh_app_setting_set --app=$app --key=language --value="$language"
ynh_app_setting_set --app=$app --key=project_version --value="$project_version"
ynh_app_setting_set --app=$app --key=core_version --value="$core_version"
ynh_app_setting_set --app=$app --key=ldap_version --value="$ldap_version"

#=================================================
# STANDARD MODIFICATIONS
#=================================================
# INSTALL DEPENDENCIES
#=================================================
ynh_script_progression --message="Installing dependencies..." --weight=2

ynh_install_app_dependencies $pkg_dependencies

#=================================================
# CREATE DEDICATED USER
#=================================================
ynh_script_progression --message="Configuring system user..." --weight=1

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

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

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=$db_name
ynh_app_setting_set --app=$app --key=db_pwd --value=$db_pwd

#=================================================
# DOWNLOAD, CHECK AND UNPACK SOURCE
#=================================================
ynh_script_progression --message="Setting up source files..." --weight=3

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 $app:www-data "$final_path"

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

# Create a dedicated PHP-FPM config
ynh_add_fpm_config --usage=low --footprint=low
phpversion=$(ynh_app_setting_get --app=$app --key=phpversion)

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

# Create a dedicated NGINX config
ynh_add_nginx_config

#=================================================
# SPECIFIC SETUP
#=================================================
# ADD SWAP
#=================================================
ynh_print_info --message="Adding swap..."

if [ ${PACKAGE_CHECK_EXEC:-0} -eq 0 ]; then
  ynh_add_swap --size=$swap_needed
fi

#=================================================
# INSTALL COMPOSER DEPENDENCIES
#=================================================
ynh_script_progression --message="Installing composer dependencies..." --weight=5

ynh_exec_warn_less ynh_install_composer --phpversion="$phpversion" --workdir="$final_path"

# Set Flarum version
ynh_exec_warn_less ynh_composer_exec --phpversion=$phpversion --workdir=$final_path --commands="require flarum/core:$core_version --prefer-lowest --no-update"

# Require LDAP extension
ynh_exec_warn_less ynh_composer_exec --phpversion=$phpversion --workdir=$final_path --commands="require tituspijean/flarum-ext-auth-ldap:$ldap_version --no-update"

# Update and download dependencies
ynh_exec_warn_less ynh_composer_exec --phpversion=$phpversion --workdir=$final_path --commands="update"

#=================================================
# FLARUM POST-INSTALL
#=================================================
ynh_script_progression --message="Configuring Flarum..." --weight=2

# Copy and populate configuration.yml to working directory
ynh_add_config --template="../conf/configuration.yml" --destination="$final_path/configuration.yml"

# Execute post-installation
pushd $final_path
  ynh_exec_as $app php$phpversion -d $final_path -d memory_limit=-1 flarum install -f configuration.yml
  # Delete configuration.yml as it contains sensitive data
  ynh_secure_remove --file="$final_path/configuration.yml"
popd

# Email setup
ynh_add_config --template="../conf/mail.sql.template" --destination="../conf/mail.sql"
ynh_mysql_connect_as --user=$app --password="$db_pwd" --database=$db_name < ../conf/mail.sql

# Enable and set up the LDAP auth extension
ynh_script_progression --message="Enabling and configuring LDAP extension..." --weight=2
activate_flarum_extension $db_name "tituspijean-auth-ldap"
ynh_add_config --template="../conf/ldap.sql.template" --destination="../conf/ldap.sql"
ynh_mysql_connect_as --user=$app --password="$db_pwd" --database=$db_name < ../conf/ldap.sql

# Install, activate and set language extensions
case $language in
  fr)
    ynh_script_progression --message="Installing French extension..." --weight=2
    ynh_exec_warn_less ynh_composer_exec --phpversion=$phpversion --workdir=$final_path --commands="require qiaeru/lang-french:*"
    activate_flarum_extension $db_name "qiaeru-lang-french"
    sql_command="UPDATE \`settings\` SET \`value\` = 'fr' WHERE \`settings\`.\`key\` = 'default_locale'"
    ynh_mysql_execute_as_root --sql="$sql_command" --database=$db_name
    ;;
  de)
    ynh_script_progression --message="Installing German extension..." --weight=2
    ynh_exec_warn_less ynh_composer_exec --phpversion=$phpversion --workdir=$final_path --commands="require kakifrucht/flarum-de:*"
    activate_flarum_extension $db_name "kakifrucht-de"
    sql_command="UPDATE \`settings\` SET \`value\` = 'de' WHERE \`settings\`.\`key\` = 'default_locale'"
    ynh_mysql_execute_as_root --sql="$sql_command" --database=$db_name
    ;;
esac

# Set files and directories permissions
chmod 750 "$final_path"
chmod -R o-rwx "$final_path"
chown -R $app:www-data "$final_path"

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

# Use logrotate to manage application logfile(s)
ynh_use_logrotate

#=================================================
# 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..."

ynh_systemd_action --service_name=nginx --action=reload

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

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