/* Application configuration
 *
 * debug       - Show debug panel (0/1)
 *
 * theme       - Color palette. Pick one of the keys defined in window.THEMES
 *               below. To add a new theme, drop a new *.css file in the same
 *               directory and add an entry to window.THEMES.
 *
 * renderer    - Background renderer: 'vanta' (default, GPU 3D volumetric
 *               clouds, heavy) or 'clouds2d' (lightweight 2D WebGL shader,
 *               very low GPU usage, similar visual style).
 *
 * units       - Measurement units for the weather widget.
 *               'metric' (°C, km/h) or 'imperial' (°F, mph)
 *
 * language    - UI language code. Add a new language by extending
 *               window.TRANSLATIONS in i18n.js. English ('en') is the base;
 *               if a key is missing in the current language, English is used.
 *
 * location    - Geographic coordinates for sun/moon calculations. Used
 *               by the SunCalc library (SunCalc.getTimes, getMoonTimes,
 *               getPosition). Object with 'lat' (latitude, -90 to +90)
 *               and 'lon' (longitude, -180 to +180). Positive lat = north,
 *               positive lon = east. Optionally add 'label' (string) to
 *               set a custom place name (skips reverse-geocoding).
 *
 * timeFormat  - Format string for the digital clock, using strict
 *               ISO 8601 tokens (case-sensitive). Any other character is
 *               treated as a literal (including whitespace).
 *
 *                 YYYY   4-digit year          (2026)
 *                 MM     month 01-12          (10) - always month
 *                 DD     day 01-31            (07)
 *                 HH     hour 00-23 (24h)     (14)
 *                 mm     minute 00-59        (35) - lowercase!
 *                 ss     second 00-59        (22) - lowercase!
 *                 sss    millisecond 000-999 (456)
 *                 a      am/pm (lowercase)   (pm)
 *                 A      AM/PM (uppercase)   (PM)
 *                 aaaa   am/pm lowercase        (pm) - long form
 *                 AAAA   AM/PM uppercase        (PM) - long form
 *                 T      literal 'T'
 *
 *               Non-standard extension tokens (localized via i18n):
 *                 MMM    month short name     (Oct, Okt, Ott, ...)
 *                 MMMM   month full name      (October, Oktober, ...)
 *                 DDD    weekday short name   (Mon, Mo, Lu, ...)
 *                 DDDD   weekday full name    (Monday, Montag, ...)
 *
 *               Date-only forms:  YYYY,  YYYY-MM,  YYYY-MM-DD
 *               Date-time forms:   above + T + HH:mm,  HH:mm:ss,  HH:mm:ss.sss
 *               Any other character is a literal (incl. spaces, tabs, \n).
 *
 *               Escape sequences (parsed in literal section):
 *                 \n     newline
 *                 \t     tab
 *                 \\     literal backslash
 *
 *               Note: MM is ALWAYS month (ISO). For minutes use mm (lowercase).
 *
 *               Examples:
 *                 'HH:mm:ss'                            -> 14:35:22
 *                 'hh:mm:ss a'                          -> 02:35:22 PM
 *                 'YYYY-MM-DD'                          -> 2026-10-07
 *                 'YYYY-MM-DDTHH:mm:ss'                 -> 2026-10-07T14:35:22
 *                 'YYYY-MM-DDTHH:mm:ss.sss'             -> 2026-10-07T14:35:22.456
 *                 'HH:mm:ss DDD'                        -> 14:35:22 Mon
 *                 'HH:mm:ss DDDD'                       -> 14:35:22 Monday
 *                 'HH:mm:ss MMM'                        -> 14:35:22 Oct
 *                 'HH:mm:ss MMMM'                       -> 14:35:22 October
 *                 'YYYY-MM-DD\tHH:mm:ss.sss a\n DDD MMM'
 *                                                     -> 2026-10-07 14:35:22.456 PM
 *                                                        Mon Oct
 */
window.CONFIG = {
    debug: 0,
    theme: 'ash',
    units: 'metric',
    renderer: 'clouds2d',  // 'vanta', 'clouds2d', or 'clouds3d'
    language: 'de',
    timeFormat: 'DD. MMMM, YYYY ‒ HH:mm:SS',
    location: {
        // Latitude and longitude for sun/moon calculations
        // Default: Passau, Germany
        lat: 48.5667,
        lon: 13.4319
    }
};

// List of available themes. The key is the theme id (used in config.theme),
// the value is the CSS file name. Add a new theme by adding a new entry here
// and dropping the corresponding CSS file in the same directory.
window.THEMES = {
    'ash': 'ash.css',
    'gruvbox': 'gruvbox.css',
    'nord': 'nord.css'
};