#!/bin/bash

#=================================================
# GENERIC STARTING
#=================================================
# IMPORT GENERIC HELPERS
#=================================================

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

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

# 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=$YNH_APP_ARG_ADMIN
is_public=$YNH_APP_ARG_IS_PUBLIC
language=$YNH_APP_ARG_LANGUAGE

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=$app --key=is_public --value=$is_public
ynh_app_setting_set --app=$app --key=language --value=$language

#=================================================
# STANDARD MODIFICATIONS
#=================================================
# INSTALL DEPENDENCIES
#=================================================
ynh_script_progression --message="Installing dependencies..." --weight=40

ynh_install_app_dependencies "$pkg_dependencies"

#=================================================
# CREATE A MYSQL DB
#=================================================
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

#=================================================
# DOWNLOAD, CHECK AND UNPACK SOURCE
#=================================================
ynh_script_progression --message="Setting up source files..." --weight=5

ynh_app_setting_set --app=$app --key=final_path --value=$final_path

# Create tmp directory and fetch app inside
tmpdir="$(ynh_smart_mktemp --min_size=300)"
ynh_setup_source --dest_dir="$tmpdir"

# Fetch needed plugins
mkdir -p $tmpdir/plugins/Ldap_Login
ynh_setup_source --dest_dir="$tmpdir/plugins/Ldap_Login" --source_id=ldap_plugin
ynh_setup_source --dest_dir="$tmpdir/plugins" --source_id=log_failed_logins_plugin

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

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

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

# Create a dedicated NGINX config
ynh_add_nginx_config

#=================================================
# SPECIFIC SETUP
#=================================================
# COPY FILES TO $FINAL_PATH
#=================================================

# sets extended pattern matching options in the bash shell
shopt -s extglob

# Install files and set permissions
mkdir $final_path
cp -a $tmpdir/!(upload|_data|galleries) $final_path

datapath=/home/yunohost.app/$app
mkdir -p $datapath/_data
mkdir -p $datapath/upload
mkdir -p $datapath/galleries

ln -sd $datapath/_data $final_path/_data
ln -sd $datapath/upload $final_path/upload
ln -sd $datapath/galleries $final_path/galleries

cp -Rp $tmpdir/_data/. $final_path/_data
cp -Rp $tmpdir/upload/. $final_path/upload
cp -Rp $tmpdir/galleries/. $final_path/galleries

chown -R $app: $final_path
chown -R $app: $datapath
chmod 755 -R $final_path/_data

ynh_secure_remove --file="$tmpdir"

#=================================================
# PHP-FPM CONFIGURATION
#=================================================
ynh_script_progression --message="Configuring PHP-FPM..." --weight=2

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

#=================================================
# SETUP APPLICATION WITH CURL
#=================================================
ynh_script_progression --message="Installing Piwigo with cURL..." --weight=5

# Set the app as temporarily public for cURL call
ynh_permission_update --permission="main" --add="visitors"

# Reload NGINX
ynh_systemd_action --service_name=nginx --action=reload

# Generate random password for admin
adm_pwd=$(ynh_string_random --length=24)
ynh_app_setting_set --app=$app --key=admin_pwd --value="$adm_pwd"

if [ "$language" = "fr" ]; then
  applanguage="fr_FR"
else
  applanguage="en_UK"
fi

# Configure Piwigo via cURL
mail="$(ynh_user_get_info --username=$admin --key=mail)"

# Installation with cURL
ynh_local_curl "/install.php?language=$applanguage" "install=true" "dbuser=$db_name" "dbpasswd=$db_pwd" "dbname=$db_name" "admin_name=$admin" "admin_pass1=$adm_pwd" "admin_pass2=$adm_pwd" "admin_mail=$mail"

#=================================================
# CONFIGURE PIWIGO
#=================================================
ynh_script_progression --message="Configuring Piwigo..."

# Change local config
cp ../conf/config.inc.php $final_path/local/config/

# Calculate and store the config file checksum
ynh_store_file_checksum --file="$final_path/local/config/config.inc.php"

# Setup database in local/config/database.inc.php
ynh_add_config --template="../conf/database.inc.php" --destination="$final_path/local/config/database.inc.php"

# Calculate and store the database config file checksum
ynh_store_file_checksum --file="$final_path/local/config/database.inc.php"

#=================================================
# ADD LDAP PLUGIN
#=================================================
ynh_script_progression --message="Configuring LDAP plugin..."

# Activate the LDAP plugin using the WS API

# Login with admin account
ynh_local_curl "/ws.php?format=json" "method=pwg.session.login" "username=$admin" "password=$adm_pwd"
# Get session token
status=$(ynh_local_curl "/ws.php?format=json" "method=pwg.session.getStatus")
pwg_token=$(jq --raw-output .result.pwg_token <<< $status)
# Install the Ldap_Login plugin
ynh_local_curl "/ws.php?format=json" "method=pwg.plugins.performAction" "action=install" "plugin=Ldap_Login" "pwg_token=$pwg_token"
# Activate the Ldap_Login plugin
ynh_local_curl "/ws.php?format=json" "method=pwg.plugins.performAction" "action=activate" "plugin=Ldap_Login" "pwg_token=$pwg_token"
# Log out
ynh_local_curl "/ws.php?format=json" "method=pwg.session.logout"

# Edit Ldap_Login plugin configuration
ynh_mysql_connect_as --user=$db_name --password=$db_pwd --database=$db_name <<< "UPDATE piwigo_ldap_login_config SET value='ou=users,dc=yunohost,dc=org' WHERE param = 'ld_basedn';
UPDATE piwigo_ldap_login_config SET value='uid' WHERE param = 'ld_user_attr';
UPDATE piwigo_ldap_login_config SET value='' WHERE param = 'ld_binddn';
UPDATE piwigo_ldap_login_config SET value='0' WHERE param = 'allow_new_users';
UPDATE piwigo_ldap_login_config SET value='0' WHERE param = 'ld_group_user_active';"

#=================================================
# CONFIGURE FAIL2BAN
#=================================================
ynh_script_progression --message="Configuring Fail2Ban..." --weight=6

# Configure and activate log_failed_logins plugin
ynh_mysql_connect_as --user=$db_name --password=$db_pwd --database=$db_name <<< "INSERT INTO plugins (id,state,version) VALUES ('log_failed_logins','active','1.2');"
ynh_mysql_connect_as --user=$db_name --password=$db_pwd --database=$db_name <<< "INSERT INTO config (param, value) VALUES ('logFailedLoginsFilename','/var/log/${app}FailedLogins.log');"

touch "/var/log/${app}FailedLogins.log"
chown $app: "/var/log/${app}FailedLogins.log"

ynh_add_fail2ban_config --logpath="/var/log/${app}FailedLogins.log" --failregex="ip=<HOST>" --max_retry=6

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

# Make app public if necessary
if [ $is_public -eq 0 ]
then
	ynh_permission_update --permission="main" --remove="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 Piwigo completed" --last