#!/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="/"

client_max_body_size="50M"

admin=$YNH_APP_ARG_ADMIN
email=$YNH_APP_ARG_EMAIL
password=$YNH_APP_ARG_PASSWORD

# Config stuff:

registration_open=$(convert_bool $YNH_APP_ARG_REGISTRATION_OPEN)
registration_approval=$(convert_bool $YNH_APP_ARG_REGISTRATION_APPROVAL)
registration_reason=$(convert_bool $YNH_APP_ARG_REGISTRATION_REASON)

media_image_max_size="2097152"
media_video_max_size="10485760"
media_description_min_chars="0"
media_description_max_chars="500"
media_remote_cache_days="30"

statuses_max_chars="5000"
statuses_cw_max_chars="100"
statuses_poll_max_options="6"
statuses_poll_option_max_chars="50"
statuses_media_max_files="6"

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"

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

ynh_app_setting_set --app=$app --key=domain --value=$domain
ynh_app_setting_set --app=$app --key=path_url --value=$path_url

ynh_app_setting_set --app=$app --key=client_max_body_size --value=$client_max_body_size

ynh_app_setting_set --app=$app --key=admin --value=$admin
ynh_app_setting_set --app=$app --key=email --value=$email
ynh_app_setting_set --app=$app --key=password --value=$password

ynh_app_setting_set --app=$app --key=registration_open --value=$registration_open
ynh_app_setting_set --app=$app --key=registration_approval --value=$registration_approval
ynh_app_setting_set --app=$app --key=registration_reason --value=$registration_reason

ynh_app_setting_set --app=$app --key=media_image_max_size --value=$media_image_max_size
ynh_app_setting_set --app=$app --key=media_video_max_size --value=$media_video_max_size
ynh_app_setting_set --app=$app --key=media_description_min_chars --value=$media_description_min_chars
ynh_app_setting_set --app=$app --key=media_description_max_chars --value=$media_description_max_chars
ynh_app_setting_set --app=$app --key=media_remote_cache_days --value=$media_remote_cache_days

ynh_app_setting_set --app=$app --key=statuses_max_chars --value=$statuses_max_chars
ynh_app_setting_set --app=$app --key=statuses_cw_max_chars --value=$statuses_cw_max_chars
ynh_app_setting_set --app=$app --key=statuses_poll_max_options --value=$statuses_poll_max_options
ynh_app_setting_set --app=$app --key=statuses_poll_option_max_chars --value=$statuses_poll_option_max_chars
ynh_app_setting_set --app=$app --key=statuses_media_max_files --value=$statuses_media_max_files

#=================================================
# 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=5

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=5

db_name=$(ynh_sanitize_dbid --db_name=$app)
db_user=$db_name
db_pwd=$(ynh_string_random --length=30)
ynh_app_setting_set --app=$app --key=db_name --value=$db_name
ynh_app_setting_set --app=$app --key=db_pwd --value=$db_pwd
ynh_psql_test_if_first_run
ynh_psql_setup_db --db_user=$db_user --db_name=$db_name --db_pwd=$db_pwd

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

### `ynh_setup_source` is used to install an app from a zip or tar.gz file,
### downloaded from an upstream source, like a git repository.
### `ynh_setup_source` use the file conf/app.src

# detect_arch comes from _common.sh / personnal helpers
architecture=$(detect_arch)

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

# FIXME: this should be managed by the core in the future
# Here, as a packager, you may have to tweak the ownerhsip/permissions
# such that the appropriate users (e.g. maybe www-data) can access
# files in some cases.
# But FOR THE LOVE OF GOD, do not allow r/x for "others" on the entire folder _
# this will be treated as a security issue.
chmod 750 "$final_path"
chmod -R o-rwx "$final_path"
chown -R $app:www-data "$final_path"

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

# Create a dedicated NGINX config
ynh_add_nginx_config

#=================================================
# 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

# FIXME: this should be managed by the core in the future
# Here, as a packager, you may have to tweak the ownerhsip/permissions
# such that the appropriate users (e.g. maybe www-data) can access
# files in some cases.
# But FOR THE LOVE OF GOD, do not allow r/x for "others" on the entire folder -
# this will be treated as a security issue.
chmod 750 "$datadir"
chmod -R o-rwx "$datadir"
chown -R $app:www-data "$datadir"

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

ynh_add_config --template="config.yaml" --destination="$final_path/config.yaml"

# FIXME: this should be handled by the core in the future
# You may need to use chmod 600 instead of 400,
# for example if the app is expected to be able to modify its own config
chmod 400 "$final_path/config.yaml"
chown $app:$app "$final_path/config.yaml"

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

# Create a dedicated systemd config
ynh_add_systemd_config

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

# Use logrotate to manage application logfile(s)
ynh_use_logrotate

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

yunohost service add $app --description="Gotosocial server" --log="/var/log/$app/$app.log"

#=================================================
# CREATE ADMIN USER
#=================================================
ynh_script_progression --message="Creating gotosocial admin user..." --weight=1

"$final_path"/gotosocial --config-path "$final_path/config.yaml" admin account create --username "$admin" --email "$email" --password "$password"

"$final_path"/gotosocial --config-path "$final_path/config.yaml" admin account confirm --_username "$admin"

"$final_path"/gotosocial --config-path "$final_path/config.yaml" admin account promote --username "$admin"

#=================================================
# 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"

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

# Everyone can access the app.
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

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

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