#!/bin/bash

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

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

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

ynh_clean_setup () {
	ynh_clean_check_starting
}

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

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

app=$YNH_APP_INSTANCE_NAME

domain=$YNH_APP_ARG_DOMAIN
path_url="/"
is_public=$YNH_APP_ARG_IS_PUBLIC

#=================================================
# 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 "This path already contains a folder"

# Register (book) web path
ynh_webpath_register --app="$app" --domain="$domain" --path_url="$path_url"

#=================================================
# FIND AND OPEN A PORT
#=================================================
ynh_script_progression --message="Configuring firewall..." --weight=2

# Find an available port
port=$(ynh_find_port --port=3000)
ynh_app_setting_set --app="$app" --key="port" --value="$port"

#=================================================
# STORE SETTINGS FROM MANIFEST
#=================================================
ynh_script_progression --message="Storing installation settings..." --weight=2

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

#==============================================
# INSTALL DEPENDENCIES
#==============================================
ynh_script_progression --message="Installing dependencies..." --weight=20

ynh_install_app_dependencies $pkg_dependencies

# Install Nodejs
ynh_exec_warn_less ynh_install_nodejs --nodejs_version="$nodejs_version"

# Install Yarn
ynh_install_extra_app_dependencies --repo="deb https://dl.yarnpkg.com/debian/ stable main" --package="yarn" --key="https://dl.yarnpkg.com/debian/pubkey.gpg"

#==============================================
# CREATE DB
#==============================================
ynh_script_progression --message="Creating a database..." --weight=2

db_name=$(ynh_sanitize_dbid --db_name=$app)
db_user=$db_name
db_pwd=$(ynh_string_random --length=30)

ynh_app_setting_set --app="$app" --key="db_pwd" --value="$db_pwd"
ynh_app_setting_set --app="$app" --key="db_name" --value="$db_name"
ynh_app_setting_set --app="$app" --key="db_user" --value="$db_user"

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=2

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

#=================================================
# NGINX CONFIGURATION
#=================================================
ynh_script_progression --message="Configuring Nginx web server..." --weight=2

# Create a dedicated nginx config
ynh_add_nginx_config

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

# Main config File
ynh_replace_string --match_string="__PORT__"      --replace_string="$port"         --target_file="../conf/config.json.example"
ynh_replace_string --match_string="__DOMAIN__"    --replace_string="$domain"       --target_file="../conf/config.json.example"
ynh_replace_string --match_string="__PATH__"      --replace_string="${path_url:1}" --target_file="../conf/config.json.example"
ynh_replace_string --match_string="__DB_USER__"   --replace_string="$db_user"      --target_file="../conf/config.json.example"
ynh_replace_string --match_string="__DB_NAME__"   --replace_string="$db_name"      --target_file="../conf/config.json.example"
ynh_replace_string --match_string="__DB_PASS__"   --replace_string="$db_pwd"       --target_file="../conf/config.json.example"
ynh_replace_string --match_string="__APP__"       --replace_string="$app"          --target_file="../conf/config.json.example"

cp ../conf/config.json.example "$final_path/config.json"

ynh_store_file_checksum "$final_path/config.json"

# DB Config File
ynh_replace_string --match_string="__DB_USER__"   --replace_string="$db_user"      --target_file="../conf/.sequelizerc.example"
ynh_replace_string --match_string="__DB_NAME__"   --replace_string="$db_name"      --target_file="../conf/.sequelizerc.example"
ynh_replace_string --match_string="__DB_PASS__"   --replace_string="$db_pwd"       --target_file="../conf/.sequelizerc.example"

cp ../conf/.sequelizerc.example "$final_path/.sequelizerc"

#==============================================
# INSTALL CODIMD
#==============================================
ynh_script_progression --message="Building $app... (this will take some time and resources!)" --weight=240

pushd "$final_path" || ynh_die

yarn install --frozen-lockfile && ynh_exec_warn_less yarn run build

popd || ynh_die

#=================================================
# GENERIC FINALIZATION
#=================================================
# CREATE DEDICATED USER
#=================================================
ynh_script_progression --message="Configuring system user..." --weight=3

# Create a system user
ynh_system_user_create "$app"

chown -R "$app":"$app" "$final_path"

#=================================================
# SETUP LOGROTATE
#=================================================
ynh_script_progression --message="Configuring log rotation..." --weight=2

# Use logrotate to manage application logfile(s)
ynh_use_logrotate

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

ynh_replace_string --match_string="__APP__"       --replace_string="$app"         --target_file="../conf/systemd.service"
ynh_replace_string --match_string="__FINALPATH__" --replace_string="$final_path"  --target_file="../conf/systemd.service"
ynh_replace_string --match_string="__ENV_PATH__"  --replace_string="$PATH"        --target_file="../conf/systemd.service"
ynh_replace_string --match_string="__NODE__"      --replace_string="$nodejs_path" --target_file="../conf/systemd.service"

ynh_add_systemd_config

yunohost service add "$app" --description "Collaborative Markdown notes" --log="/var/log/$app/$app.log"

#=================================================
# START SYSTEMD SERVICE
#=================================================
ynh_script_progression --message="Starting $app..." --weight=2

ynh_systemd_action --service_name="$app" --action="start" --log_path="systemd" --line_match="HTTP Server listening"

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

# Make app public if necessary or protect it
[ $is_public -eq 0 ] || ynh_permission_update --permission "main" --add "visitors"

#=================================================
# RELOAD NGINX
#=================================================
ynh_script_progression --message="Reloading Nginx web server..." --weight=2

ynh_systemd_action --service_name=nginx --action=reload

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

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