#!/usr/bin/env bash

# Timezone configuration for Stormux Gaming Image
# Uses the same interface as standard Stormux images

export DIALOGOPTS='--insecure --no-lines --visit-items'

set_timezone() {
    # Get the list of timezones
    mapfile -t regions < <(timedatectl --no-pager list-timezones | cut -d '/' -f1 | sort -u)
    regionOptions=()
    for regionName in "${regions[@]}"; do
        regionOptions+=("$regionName" "$regionName")
    done

    # Use the same text twice here and just hide the tag field.
        region=$(dialog --backtitle "Please select your Region" \
                --no-tags \
                --menu "Use up and down arrows or page-up and page-down to navigate the list, and press 'Enter' to make your selection." 0 0 0 \
                "${regionOptions[@]}" --stdout)

    if [[ -z "$region" ]]; then
        echo "No region selected"
        exit 1
    fi

    mapfile -t cities < <(timedatectl --no-pager list-timezones | grep "$region" | cut -d '/' -f2 | sort -u)
    cityOptions=()
    for cityName in "${cities[@]}"; do
        cityOptions+=("$cityName" "$cityName")
    done

    # Use the same text twice here and just hide the tag field.
        city=$(dialog --backtitle "Please select a city near you" \
                --no-tags \
                --menu "Use up and down arrow or page-up and page-down to navigate the list." 0 0 10 \
                "${cityOptions[@]}" --stdout)

    if [[ -z "$city" ]]; then
        echo "No city selected"
        exit 1
    fi

    # Set the timezone
    if [[ -f /etc/localtime ]]; then
        rm /etc/localtime
    fi
    ln -sf "/usr/share/zoneinfo/${region}/${city}" /etc/localtime
    timedatectl set-ntp true
    
    echo "Timezone set to ${region}/${city}"
}

# Check if running as root
if [[ $EUID -ne 0 ]]; then
    echo "This script requires root privileges"
    exit 1
fi

set_timezone