#!/bin/bash

#=================================================
# GENERIC START
#=================================================

# Load common variables and helpers
source ./_common.sh

# IMPORT GENERIC HELPERS
source /usr/share/yunohost/helpers

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

# Exit if an error occurs during the execution of the script
#REMOVEME? ynh_abort_if_errors

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

# Retrieve arguments
#REMOVEME? domain=$YNH_APP_ARG_DOMAIN
#REMOVEME? path=$YNH_APP_ARG_PATH
#REMOVEME? admin=$YNH_APP_ARG_ADMIN
#REMOVEME? is_public=$YNH_APP_ARG_IS_PUBLIC

#REMOVEME? app=$YNH_APP_INSTANCE_NAME

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

#REMOVEME? install_dir="/var/www/$app"
#REMOVEME? test ! -e "$install_dir" || ynh_die --message="This path already contains a folder"

ynh_user_exists "$admin" || ynh_die --message "The chosen admin user does not exist."

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

#=================================================
# STORE SETTINGS FROM MANIFEST
#=================================================
#REMOVEME? ynh_script_progression --message="Storing installation settings..." --weight=1

#REMOVEME? ynh_app_setting_set --app=$app --key=domain --value=$domain
#REMOVEME? ynh_app_setting_set --app=$app --key=admin --value=$admin
#REMOVEME? ynh_app_setting_set --app=$app --key=path --value=$path

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

# Find an available port
#REMOVEME? port=$(ynh_find_port --port=6000)
#REMOVEME? ynh_app_setting_set --app=$app --key=port --value=$port

#=================================================
# INSTALL DEPENDENCIES
#=================================================
#REMOVEME? ynh_script_progression --message="Installing dependencies..." --weight=20

#REMOVEME? ynh_exec_warn_less ynh_install_app_dependencies $pkg_dependencies

#=================================================
# CREATE A DATABASE
#=================================================
ynh_script_progression --message="Creating a database..." --weight=3

#REMOVEME? db_name=$(ynh_sanitize_dbid --db_name=$app)
#REMOVEME? db_user=$db_name
#REMOVEME? ynh_app_setting_set --app=$app --key=db_name --value=$db_name
#REMOVEME? ynh_psql_test_if_first_run
#REMOVEME? ynh_psql_setup_db --db_user=$db_user --db_name=$db_name

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

#REMOVEME? data_dir=/home/yunohost.app/$app
#REMOVEME? ynh_app_setting_set --app=$app --key=data_dir --value=$data_dir

# Create a system user
#REMOVEME? ynh_system_user_create --username=$app --home_dir=$data_dir --groups ssh.app --use_shell

#=================================================
# DOWNLOAD, CHECK AND UNPACK SOURCE
#=================================================
ynh_script_progression --message="Installing sources files..." --weight=10

#REMOVEME? ynh_app_setting_set --app=$app --key=install_dir --value=$install_dir
ynh_setup_source --dest_dir=$install_dir --source_id=$YNH_ARCH

mkdir -p "$install_dir/custom/conf"

chmod 750 "$install_dir"
chmod -R o-rwx "$install_dir"
chown -R $app:$app "$install_dir"
chmod +x "$install_dir/forgejo"

#=================================================
# KEYS GENERATION
#=================================================
secret_key=$($install_dir/forgejo generate secret SECRET_KEY)
lfs_jwt_secret=$($install_dir/forgejo generate secret JWT_SECRET)
internal_token=$($install_dir/forgejo generate secret INTERNAL_TOKEN)
ynh_app_setting_set --app=$app --key=secret_key --value=$secret_key
ynh_app_setting_set --app=$app --key=lfs_jwt_secret --value=$lfs_jwt_secret
ynh_app_setting_set --app=$app --key=internal_token --value=$internal_token

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

#=================================================
# CREATE DATA DIRECTORY
#=================================================
ynh_script_progression --message="Creating a data directory..." --weight=1

if [ -e "$data_dir" ]; then
    old_data_dir_path="$data_dir$(date '+%Y%m%d.%H%M%S')"
    ynh_print_warn "A data directory already exist. Data was renamed to $old_data_dir_path"
    mv "$data_dir" "$old_data_dir_path"
fi

mkdir -p $data_dir
mkdir -p "$data_dir/.ssh"

chmod 750 "$data_dir"
chmod -R o-rwx "$data_dir"
chown -R $app:$app "$data_dir"
chmod u=rwx,g=,o= "$data_dir/.ssh"

#=================================================
# ADD A CONFIGURATION
#=================================================
ynh_script_progression --message="Adding a configuration file..." --weight=1

ssh_port=$(grep -P "Port\s+\d+" /etc/ssh/sshd_config | grep -P -o "\d+")
ynh_add_config --template="app.ini" --destination="$install_dir/custom/conf/app.ini"

chmod 640 "$install_dir/custom/conf/app.ini"
chown $app:$app "$install_dir/custom/conf/app.ini"

#=================================================
# SETUP SYSTEMD
#=================================================
ynh_script_progression --message="Configuring a systemd service..." --weight=1

ynh_add_systemd_config

#=================================================
# GENERIC FINALIZATION
#=================================================
# SETUP LOGROTATE
#=================================================
ynh_script_progression --message="Configuring log rotation..." --weight=1

# Configure logrotate
ynh_use_logrotate --logfile "/var/log/$app/forgejo.log"

chown $app:$app /var/log/$app
chmod u=rwX,g=rX,o= "/var/log/$app"

#=================================================
# INTEGRATE SERVICE IN YUNOHOST
#=================================================
ynh_script_progression --message="Integrating service in YunoHost..." --weight=1

yunohost service add "$app" --description="Forgejo" --log="/var/log/$app/forgejo.log"

#=================================================
# START SYSTEMD SERVICE
#=================================================
ynh_script_progression --message="Starting a systemd service..." --weight=3

ynh_systemd_action --service_name=$app --action="start" --log_path="/var/log/$app/forgejo.log" --line_match="Starting new Web server: tcp:127.0.0.1:"

#=================================================
# SETUP FAIL2BAN
#=================================================
ynh_script_progression --message="Configuring Fail2Ban..." --weight=1

ynh_add_fail2ban_config --logpath "/var/log/$app/forgejo.log" --failregex ".*Failed authentication attempt for .* from <HOST>" --max_retry 5

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

# Make app public if necessary or protect it
#REMOVEME? if [ $is_public -eq 1 ]
then
#REMOVEME?     ynh_permission_update --permission="main" --add="visitors"
fi

# Only the admin can access the admin panel of the app (if the app has an admin panel)
#REMOVEME? ynh_permission_create --permission="admin" --allowed=$admin

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

#REMOVEME? ynh_systemd_action --service_name=nginx --action=reload

#=================================================
# LDAP CONFIGURATION
#=================================================
ynh_script_progression --message="Adding LDAP configuration..." --weight=1

pushd "$install_dir"
	ynh_exec_as $app ./forgejo admin auth add-ldap --security-protocol "Unencrypted" --name "YunoHost LDAP" --host "localhost" --port "389" --skip-tls-verify --user-search-base "ou=users,dc=yunohost,dc=org" --user-filter "(&(uid=%s)(objectClass=posixAccount)(permission=cn=$app.main,ou=permission,dc=yunohost,dc=org))" --firstname-attribute "givenName" --surname-attribute "sn" --email-attribute "mail" --admin-filter "(permission=cn=$app.admin,ou=permission,dc=yunohost,dc=org)"
popd

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

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