#!/usr/bin/env bashio
# ==============================================================================
# Home Assistant Community Add-on: Glances
# Configures Glances
# ==============================================================================
declare protocol
bashio::require.unprotected

# Migrate add-on data from the Home Assistant config directory,
# to the add-on configuration directory.
if ! bashio::fs.file_exists '/config/glances.conf' \
    && bashio::fs.file_exists '/homeassistant/glances/glances.conf'; then
    shopt -s dotglob
    mv /homeassistant/glances/* /config/ \
        || bashio::exit.nok "Failed to migrate Glances configuration out of Home Assistant config directory"
    rmdir /homeassistant/glances \
        || bashio::log.warning "Failed to remove Glances configuration directory from Home Assistant config directory"
fi

# Ensure the configuration exists
if bashio::fs.file_exists '/config/glances/glances.conf'; then
    cp -f /config/glances/glances.conf /etc/glances.conf
else
    mkdir -p /config/glances \
        || bashio::exit.nok "Failed to create the Glances configuration directory"

    # Copy in template file
    cp /etc/glances.conf /config/glances/
fi

# Export Glances data to InfluxDB
if bashio::config.true 'influxdb.enabled'; then
    protocol='http'
    if bashio::config.true 'influxdb.ssl'; then
        protocol='https'
    fi

    # Modify the configuration
    if bashio::config.equals 'influxdb.version' '1'; then
        bashio::config.require "influxdb.username"
        bashio::config.require "influxdb.password"
        bashio::config.require "influxdb.database"
        bashio::config.require "influxdb.prefix"
        {
            echo "[influxdb]"
            echo "user=$(bashio::config 'influxdb.username')"
            echo "password=$(bashio::config 'influxdb.password')"
            echo "db=$(bashio::config 'influxdb.database')"
            echo "prefix=$(bashio::config 'influxdb.prefix')"
        } >> /etc/glances.conf
    elif bashio::config.equals 'influxdb.version' '2'; then
        bashio::config.require "influxdb.org"
        bashio::config.require "influxdb.bucket"
        bashio::config.require "influxdb.token"
        {
            echo "[influxdb2]"
            echo "org=$(bashio::config 'influxdb.org')"
            echo "bucket=$(bashio::config 'influxdb.bucket')"
            echo "token=$(bashio::config 'influxdb.token')"
        } >> /etc/glances.conf
    fi

    {
        echo "protocol=${protocol}"
        echo "host=$(bashio::config 'influxdb.host')"
        echo "port=$(bashio::config 'influxdb.port')"
    } >> /etc/glances.conf
fi

ln -sf /dev/stdout /tmp/glances-root.log