#!/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
#=================================================

domain=$YNH_APP_ARG_DOMAIN
path_url="/"
version=$(curl -s https://api.github.com/repos/docker/compose/releases/latest | grep 'tag_name' | cut -d\" -f4)
admin=$YNH_APP_ARG_ADMIN
password=$(ynh_string_random --length=12)
sitename=$YNH_APP_ARG_SITENAME
random=$(ynh_string_random --length=10)

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=/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..."  --weight=1

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=$app --key=password --value=$password
ynh_app_setting_set --app=$app --key=sitename --value=$sitename
ynh_app_setting_set --app=$app --key=random --value=$random

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

# Find an available port
port_lemmy=$(ynh_find_port --port=8536)
port_ui=$(ynh_find_port --port=1235)
port_pictrs=$(ynh_find_port --port=8537)
port_iframely=$(ynh_find_port --port=8061)
ynh_app_setting_set --app=$app --key=port_lemmy --value=$port_lemmy
ynh_app_setting_set --app=$app --key=port_ui --value=$port_ui
ynh_app_setting_set --app=$app --key=port_pictrs --value=$port_pictrs
ynh_app_setting_set --app=$app --key=port_iframely --value=$port_iframely

#=================================================
# INSTALL DEPENDENCIES
#=================================================
ynh_script_progression --message="Installing dependencies..." --weight=1

#ynh_install_app_dependencies $pkg_dependencies

# Install Docker and compose
curl -sSL https://get.docker.com | sh
systemctl enable docker --quiet
curl -L https://github.com/docker/compose/releases/download/${version}/docker-compose-`uname -s`-`uname -m` -o /usr/local/bin/docker-compose

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

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

mkdir "$final_path"
cp -f ../conf/docker-compose.yml "$final_path/docker-compose.yml"
cp -f ../conf/lemmy.hjson "$final_path/lemmy.hjson"
cp -f ../conf/iframely.config.local.js "$final_path/iframely.config.local.js"
pushd "$final_path"
	mkdir -p volumes/pictrs
	chown -R 991:991 volumes/pictrs
popd
#=================================================
# NGINX CONFIGURATION
#=================================================
ynh_script_progression --message="Configuring NGINX web server..."  --weight=1

# Create a dedicated NGINX config
ynh_add_nginx_config 'port_lemmy port_ui port_pictrs port_iframely'

#=================================================
# MODIFY A CONFIG FILE
#=================================================



ynh_replace_string --match_string="__ADMIN__" --replace_string="$admin" --target_file="$final_path/lemmy.hjson"
ynh_replace_string --match_string="__ADMIN_PASS__" --replace_string="$password" --target_file="$final_path/lemmy.hjson"
ynh_replace_string --match_string="__NAME__" --replace_string="$sitename" --target_file="$final_path/lemmy.hjson"
ynh_replace_string --match_string="__DOMAIN__" --replace_string="$domain" --target_file="$final_path/lemmy.hjson"
ynh_replace_string --match_string="__RANDOM__" --replace_string="$random" --target_file="$final_path/lemmy.hjson"
ynh_replace_string --match_string="__PORT__LEMMY__" --replace_string="$port_lemmy" --target_file="$final_path/docker-compose.yml"
ynh_replace_string --match_string="__PORT_UI__" --replace_string="$port_ui" --target_file="$final_path/docker-compose.yml"
ynh_replace_string --match_string="__PORT_PICTRS__" --replace_string="$port_pictrs" --target_file="$final_path/docker-compose.yml"
ynh_replace_string --match_string="__PORT_IFRAMELY__" --replace_string="$port_iframely" --target_file="$final_path/docker-compose.yml"
ynh_replace_string --match_string="__DOMAIN__" --replace_string="$domain" --target_file="$final_path/iframely.config.local.js"


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


ynh_permission_update --permission="main" --add="visitors"


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

ynh_systemd_action --service_name=nginx --action=reload


#=================================================
# Run Lemmy through Docker
#=================================================
cd "$final_path" && docker-compose up -d


#=================================================
# SEND A README FOR THE ADMIN
#=================================================

message="Lemmy was successfully installed :)

Please open https://$domain$path_url

Your credentials for the admin panel are:
- admin username: $admin
- admin password: $password

If you facing an issue or want to improve Lemmy, please open a new issue in this project: https://github.com/YunoHost-Apps/lemmy_ynh/issues"

ynh_send_readme_to_admin "$message"


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

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