#!/bin/bash

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

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

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

ynh_clean_setup () {
	true
}
# Exit if an error occurs during the execution of the script
ynh_abort_if_errors

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

domain=$YNH_APP_ARG_DOMAIN
path_url="/"
is_public=$YNH_APP_ARG_IS_PUBLIC
admin=$YNH_APP_ARG_ADMIN
password=$YNH_APP_ARG_PASSWORD
name="${YNH_APP_ARG_NAME// /_}"
registration=$YNH_APP_ARG_REGISTRATION
cache=$YNH_APP_ARG_CACHE
size=$YNH_APP_ARG_SIZE
random_key=$(ynh_string_random --length=64)
signing_salt=$(ynh_string_random --length=8)
admin_email=$(ynh_user_get_info --username=$admin --key="mail")

## Bypass package_checker name not compatible with akkoma
if [ ${PACKAGE_CHECK_EXEC:-0} -eq 1 ]; then
	admin="test"
fi

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=$app --key=name --value=$name
ynh_app_setting_set --app=$app --key=registration --value=$registration
ynh_app_setting_set --app=$app --key=cache --value=$cache
ynh_app_setting_set --app=$app --key=size --value=$size
ynh_app_setting_set --app=$app --key=admin_email --value=$admin_email
ynh_app_setting_set --app=$app --key=random_key --value=$random_key
ynh_app_setting_set --app=$app --key=signing_salt --value=$signing_salt

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

# Find an available port
port=$(ynh_find_port --port=8095)
ynh_app_setting_set --app=$app --key=port --value=$port

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

ynh_exec_warn_less ynh_install_app_dependencies $pkg_dependencies

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

# Create a system user
ynh_system_user_create --username=$app --home_dir="$final_path"

#=================================================
# CREATE A POSTGRESQL DATABASE
#=================================================
ynh_script_progression --message="Creating a PostgreSQL database..." --weight=1

db_name=$(ynh_sanitize_dbid --db_name=$app)
db_user=$db_name
ynh_app_setting_set --app=$app --key=db_name --value=$db_name
ynh_psql_test_if_first_run
ynh_psql_setup_db --db_user=$db_user --db_name=$db_name
ynh_psql_execute_as_root --sql="CREATE EXTENSION IF NOT EXISTS unaccent;" --database=$db_name
ynh_psql_execute_as_root --sql="CREATE EXTENSION IF NOT EXISTS pg_trgm;" --database=$db_name
ynh_psql_execute_as_root --sql="CREATE EXTENSION IF NOT EXISTS citext;" --database=$db_name
ynh_psql_execute_as_root --sql="CREATE EXTENSION IF NOT EXISTS \"uuid-ossp\";" --database=$db_name

#=================================================
# 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
# Download, check integrity, uncompress and patch the source from app.src
ynh_setup_source --dest_dir="$final_path/live" --source_id=$YNH_ARCH

chmod 750 "$final_path"
chmod -R o-rwx "$final_path"
chown -R $app:$app "$final_path"

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

if [ $cache -eq 1 ]
then
	ynh_add_config --template="../conf/cache.conf" --destination="/etc/nginx/conf.d/$app-cache.conf"

	cat ../conf/media.conf >> ../conf/nginx.conf
fi

# Create a dedicated NGINX config
ynh_add_nginx_config

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

datadir=/home/yunohost.app/$app
ynh_app_setting_set --app=$app --key=datadir --value=$datadir

mkdir -p $datadir
mkdir -p "$datadir/uploads/"
mkdir -p "$datadir/static/"
mkdir -p "$datadir/static/emoji/"
mkdir -p "$datadir/static/static/themes"
mv ../conf/styles.json "$datadir/static/styles.json"

chmod 750 "$datadir"
chmod -R o-rwx "$datadir"
chown -R $app:$app "$datadir"

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

config="/etc/$app/config.exs"

mkdir -p /etc/$app
chown $app:$app /etc/$app

#=================================================
# SETUP SYSTEMD
#=================================================
### fake akkoma executable
ln -s "$final_path/live/bin/pleroma" "$final_path/live/bin/akkoma"

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

# Create a dedicated systemd config
ynh_add_systemd_config

#=================================================
# MAKE SETUP
#=================================================
ynh_script_progression --message="Making setup..." --weight=1

pushd $final_path/live
	#Generate instance
	ynh_exec_warn_less ynh_exec_as $app -s $SHELL -lc "$final_path/live/bin/pleroma_ctl instance gen --force \
	--output $config \
	--output-psql /tmp/setup_db.psql \
	--domain $domain \
	--instance-name \"$name\" \
	--admin-email $admin_email \
	--notify-email $admin_email \
	--dbhost localhost \
	--dbname $db_name \
	--dbuser $db_user \
	--dbpass $db_pwd \
	--rum N \
	--indexable Y \
	--db-configurable Y \
	--uploads-dir $datadir/uploads \
	--static-dir $datadir/static \
	--listen-ip 127.0.0.1 \
	--listen-port $port \
	--strip-uploads Y \
	--anonymize-uploads Y \
	--dedupe-uploads Y"
popd

cat "../conf/ldap.exs" >> "$config"

ynh_replace_string --match_string="config :akkoma, configurable_from_database: false" --replace_string="config :akkoma, configurable_from_database: true" --target_file="$config"
registration_bool_value=`(($registration)) && echo "true" || echo "false"`
ynh_replace_string --match_string="registrations_open: true" --replace_string="registrations_open: $registration_bool_value" --target_file="$config"

pushd $final_path/live
	ynh_exec_warn_less ynh_exec_as $app -s $SHELL -lc "$final_path/live/bin/pleroma_ctl migrate"

	ynh_systemd_action --service_name=$app --action="start" --log_path=systemd --line_match="Access Pleroma.Web.Endpoint"

	# Add user
	ynh_exec_warn_less ynh_exec_as $app -s $SHELL -lc "$final_path/live/bin/pleroma_ctl user new $admin $admin_email --password $password --moderator --admin -y"

	ynh_systemd_action --service_name=$app --action="stop" --log_path=systemd
popd

# Calculate and store the config file checksum into the app settings
ynh_store_file_checksum --file="$config"

chmod 400 "$config"
chown $app:$app "$config"

ynh_script_progression --message="Configure admin UI to allow it to change setting - step 1/2" --weight=1
# change config file to allow configuration from the admin UI
ynh_replace_string --match_string="configurable_from_database: false" --replace_string="configurable_from_database: true" --target_file="$config"

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

yunohost service add $app --description="$app daemon for akkoma"

#=================================================
# 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=systemd --line_match="Access Pleroma.Web.Endpoint"

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

# Make app public if necessary
if [ $is_public -eq 1 ]
then
	# Everyone can access the app.
	# The "main" permission is automatically created before the install script.
	ynh_permission_update --permission="main" --add="visitors"
fi

# Everyone can access to the api part
# We don't want to display the tile in the sso so we put --show_tile="false"
# And we don't want that the YunoHost Admin can remove visitors group to this permission, so we put --protected="true"
ynh_permission_create --permission="api" --url="/api" --allowed="visitors" --auth_header="false" --show_tile="false" --protected="true"

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

ynh_systemd_action --service_name=nginx --action=reload

#=================================================
# POST INSTALL
#=================================================

ynh_script_progression --message="Configure admin UI to allow it to change setting - step 2/2" --weight=1
# Correct path to 'static dir' in DB
# This must be done when Akkoma is running (i.e. after install and start)
ynh_exec_warn_less ynh_exec_as $app -s $SHELL -lc "$final_path/live/bin/pleroma_ctl config migrate_to_db"

#=================================================
# INSTALL BASIC FRONTENDS
#=================================================
#### Fontends need Akkoma to be already running, so they are installed at the very end

# Pleroma Front-End
ynh_script_progression --message="Installing Pleroma FrontEnd..." --weight=1
ynh_exec_warn_less ynh_exec_as $app -s $SHELL -lc "$final_path/live/bin/pleroma_ctl frontend install pleroma-fe --ref stable"

# Admin Front-End
ynh_script_progression --message="Installing Admin FrontEnd..." --weight=1
ynh_exec_warn_less ynh_exec_as $app -s $SHELL -lc "$final_path/live/bin/pleroma_ctl frontend install admin-fe --ref stable"

#=================================================
# INSTALL MANGANE FRONTEND
#=================================================
# Mangane alternative Front-End will be built in, ready to enable
ynh_script_progression --message="Installing Mangane FrontEnd..." --weight=1
ynh_exec_warn_less ynh_exec_as $app -s $SHELL -lc "$final_path/live/bin/pleroma_ctl frontend install mangane --ref dist --build-url https://github.com/BDX-town/Mangane/releases/latest/download/static.zip"
# Not activated, users need to change the "primary" frontend in the admin UI (use 'mangane' and 'dist').

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

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