#!/bin/bash
# ============================================================================
# DarkForge Linux Installer — Locale Module
# ============================================================================
# Configures locale, timezone, and keyboard layout.
# ============================================================================

configure_locale() {
    # --- Timezone ---
    info "Available timezones: /usr/share/zoneinfo/"
    echo "  Common: America/New_York, America/Chicago, America/Denver,"
    echo "          America/Los_Angeles, Europe/London, Europe/Berlin"
    echo ""
    ask "Timezone [America/New_York]: "
    read -r tz
    tz="${tz:-America/New_York}"

    if [ -f "${MOUNT_POINT}/usr/share/zoneinfo/${tz}" ]; then
        ln -sf "/usr/share/zoneinfo/${tz}" "${MOUNT_POINT}/etc/localtime"
        ok "Timezone set to ${tz}"
    else
        warn "Timezone '${tz}' not found — using UTC"
        ln -sf /usr/share/zoneinfo/UTC "${MOUNT_POINT}/etc/localtime"
        tz="UTC"
    fi

    # --- Locale ---
    echo ""
    ask "Locale [en_US.UTF-8]: "
    read -r locale
    locale="${locale:-en_US.UTF-8}"

    # Generate locale using localedef (glibc provides this, locale-gen is a wrapper
    # that may not exist on from-scratch systems)
    echo "${locale} UTF-8" > "${MOUNT_POINT}/etc/locale.gen"
    locale_name="${locale%%.*}"   # e.g., "en_US" from "en_US.UTF-8"
    charset="${locale##*.}"       # e.g., "UTF-8" from "en_US.UTF-8"
    mkdir -p "${MOUNT_POINT}/usr/lib/locale"
    chroot "${MOUNT_POINT}" localedef -i "${locale_name}" -f "${charset}" "${locale}" 2>/dev/null || \
        warn "localedef failed — locale may not be fully generated"
    echo "LANG=${locale}" > "${MOUNT_POINT}/etc/locale.conf"
    ok "Locale set to ${locale}"

    # --- Keyboard ---
    echo ""
    ask "Keyboard layout [us]: "
    read -r keymap
    keymap="${keymap:-us}"

    echo "KEYMAP=${keymap}" > "${MOUNT_POINT}/etc/vconsole.conf"
    ok "Keyboard layout set to ${keymap}"

    # Store for rc.conf generation
    export INSTALL_TIMEZONE="${tz}"
    export INSTALL_LOCALE="${locale}"
    export INSTALL_KEYMAP="${keymap}"
}