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

# Retrieve arguments
domain=$YNH_APP_ARG_DOMAIN
path_url=$YNH_APP_ARG_PATH
admin=$YNH_APP_ARG_ADMIN
is_public=$YNH_APP_ARG_IS_PUBLIC
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=1

ynh_app_setting_set --app=$app --key=domain --value=$domain
ynh_app_setting_set --app=$app --key=adminusername --value=$admin
ynh_app_setting_set --app=$app --key=path --value=$path_url
ynh_app_setting_set --app=$app --key=is_public --value=$is_public

#=================================================
# STANDARD MODIFICATIONS
#=================================================
# FIND AND OPEN A PORT
#=================================================
ynh_script_progression --message="Configuring firewall..." --weight=1

# Find an available port
port=$(ynh_find_port --port=6000)
ynh_app_setting_set --app=$app --key=port --value=$port

#=================================================
# CREATE A MYSQL DATABASE
#=================================================
ynh_script_progression --message="Creating a MySQL 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=$db_name
ynh_mysql_setup_db --db_user=$db_user --db_name=$db_name
db_pwd=$(ynh_app_setting_get --app=$app --key=mysqlpwd)

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

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

#=================================================
# CREAT DIRECTORIES
#=================================================

mkdir -p "/home/$app"

DATADIR="/home/$app"

REPO_PATH="/home/$app/repositories"
DATA_PATH="/home/$app/data"

# create needed directories
mkdir -p "$final_path/data"
mkdir -p "$final_path/custom/conf/auth.d"
mkdir -p "/home/$app/data/avatars"
mkdir -p "/home/$app/data/attachments"
mkdir -p "/var/log/$app"

#=================================================
# STANDARD MODIFICATIONS
#=================================================

# Add users
# We can't use the official helper because we need to set the shell for the login
test getent passwd "$app" &>/dev/null || \
    useradd -d "/home/$app" --system --user-group "$app" --shell /bin/bash || \
        ynh_die "Unable to create $app system account"

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

cp ../conf/app.ini "$final_path/custom/conf"
cp ../conf/ldap.conf "$final_path/custom/conf/auth.d/ldap.conf"

if [ "$path_url" = "/" ]
then
    ynh_replace_string --match_string="__URL__" --replace_string="$domain" --target_file="$final_path/custom/conf/app.ini"
else
    ynh_replace_string --match_string="__URL__" --replace_string="$domain${path_url%/}" --target_file="$final_path/custom/conf/app.ini"
fi

ynh_replace_string --match_string="__REPOS_PATH__"  --replace_string="$REPO_PATH" --target_file="$final_path/custom/conf/app.ini"
ynh_replace_string --match_string="__DB_PASSWORD__" --replace_string="$db_pwd"    --target_file="$final_path/custom/conf/app.ini"
ynh_replace_string --match_string="__DB_USER__"     --replace_string="$db_user"    --target_file="$final_path/custom/conf/app.ini"
ynh_replace_string --match_string="__DOMAIN__"      --replace_string="$domain"    --target_file="$final_path/custom/conf/app.ini"
ynh_replace_string --match_string="__KEY__"         --replace_string="$(ynh_string_random)" --target_file="$final_path/custom/conf/app.ini"
ynh_replace_string --match_string="__DATA_PATH__"   --replace_string="$DATA_PATH" --target_file="$final_path/custom/conf/app.ini"
ynh_replace_string --match_string="__PORT__"        --replace_string="$port"      --target_file="$final_path/custom/conf/app.ini"
ynh_replace_string --match_string="__APP__"         --replace_string="$app"       --target_file="$final_path/custom/conf/app.ini"

if [[ "$is_public" = '1' ]]
then
    ynh_replace_string --match_string="__PRIVATE_MODE__" --replace_string="false" --target_file="$final_path/custom/conf/app.ini"
else
    ynh_replace_string --match_string="__PRIVATE_MODE__" --replace_string="true" --target_file="$final_path/custom/conf/app.ini"
fi

ynh_replace_string --match_string="__ADMIN__" --replace_string="$admin" --target_file="$final_path/custom/conf/auth.d/ldap.conf"

ynh_store_file_checksum --file="$final_path/custom/conf/app.ini"
ynh_store_file_checksum --file="$final_path/custom/conf/auth.d/ldap.conf"


# Configure init script
ynh_add_systemd_config

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

# Create a dedicated nginx config
ynh_add_nginx_config

#=================================================
# GENERIC FINALIZATION
#=================================================
# SECURE FILES AND DIRECTORIES
#=================================================

chown -R $app:$app "$final_path"
chown -R $app:$app "/home/$app"
chown -R $app:$app "/var/log/$app"
chmod u=rwX,g=rX,o= "$final_path"
chmod u=rwX,g=rX,o= "/home/$app"
chmod u=rwX,g=rX,o= "/var/log/$app"

# Unprotect root from SSO if public
set_access_settings

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

yunohost service add "$app" --log "/var/log/$app/$app.log"

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

ynh_use_logrotate "/var/log/$app"

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

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