diff options
Diffstat (limited to 'www/framework/event.nix')
| -rw-r--r-- | www/framework/event.nix | 30 |
1 files changed, 30 insertions, 0 deletions
diff --git a/www/framework/event.nix b/www/framework/event.nix index dcd4265..f0489db 100644 --- a/www/framework/event.nix +++ b/www/framework/event.nix @@ -6,6 +6,25 @@ inherit (lib) mkOption types; cfg = event.config; sort-key = e: "${e.date.start} ${e.time.start}"; + # https://en.wikipedia.org/wiki/Determination_of_the_day_of_the_week#Sakamoto's_methods + weekday = + date: + let + parts = map lib.toIntBase10 (lib.splitString "-" date); + m = lib.elemAt parts 1; + d = lib.elemAt parts 2; + y = lib.elemAt parts 0 - (if m < 3 then 1 else 0); + offset = lib.elemAt [ 0 3 2 5 0 3 5 1 4 6 2 4 ] (m - 1); + in + lib.elemAt [ + "Sonntag" + "Montag" + "Dienstag" + "Mittwoch" + "Donnerstag" + "Freitag" + "Samstag" + ] (lib.mod (y + y / 4 - y / 100 + y / 400 + offset + d) 7); prior = let candidates = lib.filter ( @@ -157,6 +176,17 @@ ''; type = types.str; example = "Samstag, 20.12.2025 von 15:00 bis 17:00 Uhr"; + default = + let + date = lib.concatStringsSep "." (lib.reverseList (lib.splitString "-" cfg.date.start)); + time = + if cfg.time.end == null then + "ab ${cfg.time.start}" + else + "von ${cfg.time.start} bis ${cfg.time.end}"; + in + "${weekday cfg.date.start}, ${date} ${time}"; + defaultText = lib.literalMD "Wochentag, Datum und Uhrzeit aus den Zeitangaben des Termins"; }; venue = mkOption { description = '' |