#!/bin/bash

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

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

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

ynh_clean_setup () {
	### Remove this function if there's nothing to clean before calling the remove script.
	true
}
# Exit if an error occurs during the execution of the script
ynh_abort_if_errors

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

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

app=$YNH_APP_INSTANCE_NAME

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

final_path="/opt/$app"
# Check user parameter
ynh_user_exists "$admin" || ynh_die "The chosen admin user does not exist."

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

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

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

ynh_app_setting_set --app=$app --key=mysqlpwd --value=$dbpass
ynh_app_setting_set --app=$app --key=adminusername --value=$admin
ynh_app_setting_set --app=$app --key=is_public --value=$is_public
ynh_app_setting_set --app=$app --key=secret_key --value=$key

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

# Find available ports
port=$(ynh_find_port --port=6000)
ynh_app_setting_set --app=$app --key=web_port --value=$port

#=================================================
# CREATE A MYSQL DATABASE
#=================================================
ynh_script_progression --message="Creating a MySQL database..." --weight=1

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

# Add users
# We can't use the official helper 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"

# create needed directories
create_dir

#=================================================
# DOWNLOAD, CHECK AND UNPACK SOURCE
#=================================================
ynh_script_progression --message="Setting up source files..." --weight=1

# Install Gogs
ynh_setup_source --dest_dir="$final_path" $architecture

# Configure gogs with app.ini file
config_gogs

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

# Configure init script
ynh_add_systemd_config

#=================================================
# NGINX CONFIGURATION
#=================================================
ynh_script_progression --message="Configuring NGINX web server..." --weight=1

# Create a dedicated NGINX config
ynh_add_nginx_config

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

# Set permissions
chown -R $app:$app "$final_path"
chown -R $app:$app "/home/$app"
chown -R $app:$app "/var/log/$app"
chmod u=rwX,g=rX,o= "$final_path"
chmod u=rwX,g=rX,o= "/home/$app"
chmod u=rwX,g=rX,o= "/var/log/$app"

# Unprotect root from SSO if public
set_access_settings

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

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

yunohost service add $app --description="Lightweight Git forge" --log="/var/log/$app/$app.log"

#=================================================
# START SYSTEMD SERVICE
#=================================================
ynh_script_progression --message="Starting a systemd service..." --weight=1

# Start a systemd service
ynh_systemd_action --service_name=$app --action="start" --log_path="/var/log/$app/$app.log"

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

ynh_systemd_action --service_name=nginx --action=reload

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

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