#!/bin/bash

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

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

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

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

# Retrieve arguments
domain=$YNH_APP_ARG_DOMAIN
path_url=$(ynh_normalize_url_path $YNH_APP_ARG_PATH)
admin=$YNH_APP_ARG_ADMIN
is_public=$YNH_APP_ARG_IS_PUBLIC

# Check domain/path availability
ynh_webpath_available $domain $path_url || ynh_die "$domain is not available as domain, please use an other domain."
ynh_webpath_register $app $domain $path_url

# Check user parameter
ynh_user_exists "$admin" \
  || ynh_die "The chosen admin user does not exist."

# Check Final Path availability
test ! -e "$final_path" || ynh_die "This path already contains a folder"

# Generate random password and key
dbpass=$(ynh_string_random)
key=$(ynh_string_random)

# Find available ports
port=$(ynh_find_port 6000)

# Store Settings
ynh_app_setting_set $app mysqlpwd $dbpass
ynh_app_setting_set $app adminusername $admin
ynh_app_setting_set $app is_public $is_public
ynh_app_setting_set $app secret_key $key
ynh_app_setting_set $app web_port $port

#=================================================
# STANDARD MODIFICATIONS
#=================================================


# Configure init script
ynh_add_systemd_config

# Modify Nginx configuration file and copy it to Nginx conf directory
config_nginx

# Initialize database and store mysql password for upgrade
ynh_mysql_create_db "$dbname" "$dbuser" "$dbpass"

# Add users
# We can't use the official helper (for now) because we need to set the shell for the login
test getent passwd "$app" &>/dev/null || \
    useradd -d "$DATADIR" --system --user-group "$app" --shell /bin/bash || \
        ynh_die "Unable to create $app system account"
# Should be replaced by this when getops is available in the helper ynh_system_user_create (probably in Yunohost 3.5)
# ynh_system_user_create --username= $app --home_dir=/opt/yunohost/$app --use_shell

# create needed directories
create_dir

# Configure init script
ynh_add_systemd_config

# Modify Nginx configuration file and copy it to Nginx conf directory
config_nginx

# Configure gitea with app.ini file
config_gitea

# Install gitea
ynh_setup_source $final_path source/$architecture

# Set permissions
set_permission

# Start gitea for building mysql tables
systemctl start "$app".service

# Wait till login_source mysql table is created
while ! $(ynh_mysql_connect_as "$dbuser" "$dbpass" "$dbname"  <<< "SELECT * FROM login_source;" &>/dev/null)
do
    sleep 2
done

# Add ldap config
ynh_replace_string "__ADMIN__" "$admin" ../conf/login_source.sql
ynh_replace_string "__APP__" "$app" ../conf/login_source.sql
ynh_mysql_connect_as "$dbuser" "$dbpass" "$dbname" < ../conf/login_source.sql

#=================================================
# SETUP FAIL2BAN
#=================================================
ynh_add_fail2ban_config "/var/log/$app/$app.log" ".*Failed authentication attempt for .* from <HOST>" 5

#=================================================
# GENERIC FINALIZATION
#=================================================

# Unprotect root from SSO if public
set_access_settings

# Add gitea to YunoHost's monitored services
yunohost service add "$app" --log "/var/log/$app/$app.log"

# Configure logrotate
ynh_use_logrotate "/var/log/$app"

# Save Version
ynh_app_setting_set $app upstream_version $(ynh_app_upstream_version)

# Reload services
ynh_systemd_action -l "Serving \[::\]:$port with pid" -p "systemd"
sleep 1

# Store the checksum with the 'INTERNAL_TOKEN' value.
# Should be removed when the issue https://github.com/go-gitea/gitea/issues/3246 is fixed
ynh_store_file_checksum "$final_path/custom/conf/app.ini"