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

domain=$YNH_APP_ARG_DOMAIN
path_url=$YNH_APP_ARG_PATH
is_public=$YNH_APP_ARG_IS_PUBLIC
admin=$YNH_APP_ARG_ADMIN
email=$(ynh_user_get_info "$admin" mail)
password=$YNH_APP_ARG_PASSWORD
language=$YNH_APP_ARG_LANGUAGE
team_display_name=$YNH_APP_ARG_TEAM_DISPLAY_NAME
architecture=$(ynh_detect_arch)

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=6

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=$app --key=admin --value=$admin
ynh_app_setting_set --app=$app --key=password --value=$password
ynh_app_setting_set --app=$app --key=language --value=$language
ynh_app_setting_set --app=$app --key=team_display_name --value=$team_display_name

#=================================================
# FIND AN AVAILABLE PORT
#=================================================
ynh_script_progression --message="Finding an available port..." --weight=3

# Find an available port
port=$(ynh_find_port --port=8065)
ynh_app_setting_set --app=$app --key=port --value=$port

#=================================================
# CREATE A MYSQL DATABASE
#=================================================
ynh_script_progression --message="Creating a MySQL database..." --weight=10

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_mysql_setup_db --db_user=$db_user --db_name=$db_name

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

# Create a system user
ynh_system_user_create --username=$app

#=================================================
# DOWNLOAD, CHECK AND UNPACK SOURCE
#=================================================
ynh_script_progression --message="Setting up source files..." --weight=3

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="$final_path" --source_id="$architecture"

#=================================================
# CREATE DIRECTORY FOR DATA
#=================================================
ynh_script_progression --message="Creating the data directory..." --weight=1

# Create datadir folder
mkdir -p "/home/yunohost.app/$app"
# Define app's data directory
data_path="/home/yunohost.app/$app"
# Give permission to the datadir
chown -R $app: "$data_path"

#=================================================
# HANDLE LOG FILES AND LOGROTATE
#=================================================
ynh_script_progression --message="Configuring log rotation..." --weight=1

# Create log directory
mkdir -p /var/log/$app
#touch /var/log/$app/$app.log
logs_path="/var/log/$app"
chown $app -R $logs_path

# Setup logrotate
ynh_use_logrotate

#=================================================
# EDIT MATTERMOST CONFIG
#=================================================
# MODIFY A CONFIG FILE
#=================================================
ynh_script_progression --message="Modifying a config file..." --weight=3

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

# Main config File
ynh_replace_string --match_string="__URL__" --replace_string="https://$domain$path_url" --target_file="$final_path/config/config.json"
ynh_replace_string --match_string="__PORT__"  --replace_string="127.0.0.1:$port" --target_file="$final_path/config/config.json"
ynh_replace_string --match_string="__DB_NAME__" --replace_string="$db_name" --target_file="$final_path/config/config.json"
ynh_replace_string --match_string="__DB_USER__" --replace_string="$db_user" --target_file="$final_path/config/config.json"
ynh_replace_string --match_string="__DB_PASS__" --replace_string="$db_pwd" --target_file="$final_path/config/config.json"
ynh_replace_string --match_string="__DATA__" --replace_string="$data_path" --target_file="$final_path/config/config.json"
ynh_replace_string --match_string="__FEEDBACK__" --replace_string="no-reply@${domain}" --target_file="$final_path/config/config.json"
ynh_replace_string --match_string="__USER_PW__" --replace_string="$(ynh_string_random --length=24)" --target_file="$final_path/config/config.json"
ynh_replace_string --match_string="__LOG__" --replace_string="$logs_path" --target_file="$final_path/config/config.json"
ynh_replace_string --match_string="__LANGUAGE__" --replace_string="$language" --target_file="$final_path/config/config.json"

ynh_store_file_checksum --file="$final_path/config/config.json"

#=================================================
# SECURE FILES AND DIRECTORIES
#=================================================

chown -R $app: $final_path
chmod -R g+w $final_path

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

# Create a dedicated NGINX config
ynh_add_nginx_config

#=================================================
# SETUP SYSTEMD
#=================================================
ynh_script_progression --message="Configuring a systemd service..." --weight=2

# Create a dedicated systemd config
ynh_add_systemd_config

#=================================================
# CREATE ADMIN AND FIRST TEAM
#=================================================

team_name=$(echo "$team_display_name" | iconv -f utf8 -t ascii//TRANSLIT//IGNORE | sed -e 's/[^[:alnum:]]/-/g' | tr -s '-' | tr A-Z a-z)

pushd "$final_path"
	ynh_exec_warn_less ynh_exec_as $app bin/mattermost user create --username "$admin" --email "$email" --password "$password" --locale "$language" --system_admin
	ynh_exec_warn_less ynh_exec_as $app bin/mattermost user verify "$admin"
	ynh_exec_warn_less ynh_exec_as $app bin/mattermost team create --name "$team_name" --display_name "$team_display_name" --email "$email"
	ynh_exec_warn_less ynh_exec_as $app bin/mattermost team add "$team_name" "$admin"
popd

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

yunohost service add $app --description="Collaboration platform built for developers" --log="/var/log/$app/$app.log"

#=================================================
# START SYSTEMD SERVICE
#=================================================
ynh_script_progression --message="Starting a systemd service..." --weight=2

# Start a systemd service
ynh_systemd_action --service_name=$app --action="start" --log_path="systemd" --line_match="Started Mattermost"

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

if [ $is_public -eq 1 ]
then
  ynh_permission_update --permission "main" --add "visitors"
fi

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