/// Tolerant JSON coercion helpers.
///
/// The API is generated from C# records, so numbers may arrive as `int` or
/// `double` and nullable strings as `null`; parsing must not crash the UI.
library;

int asInt(Object? value, {int fallback = 0}) {
  if (value is int) return value;
  if (value is num) return value.toInt();
  if (value is String) return int.tryParse(value) ?? fallback;
  return fallback;
}

double asDouble(Object? value, {double fallback = 0}) {
  if (value is double) return value;
  if (value is num) return value.toDouble();
  if (value is String) return double.tryParse(value.replaceAll(',', '.')) ?? fallback;
  return fallback;
}

bool asBool(Object? value, {bool fallback = false}) {
  if (value is bool) return value;
  if (value is String) return value.toLowerCase() == 'true';
  return fallback;
}

String asString(Object? value, {String fallback = ''}) {
  if (value is String) return value;
  if (value == null) return fallback;
  return value.toString();
}

String? asStringOrNull(Object? value) {
  if (value is String && value.isNotEmpty) return value;
  return null;
}

/// Parses `YYYY-MM-DD` (and full ISO timestamps) as a local calendar day.
DateTime asDate(Object? value) {
  final raw = asString(value);
  if (raw.isEmpty) return DateTime.now();
  final parsed = DateTime.tryParse(raw);
  if (parsed == null) return DateTime.now();
  return DateTime(parsed.year, parsed.month, parsed.day);
}

Map<String, dynamic> asMap(Object? value) {
  if (value is Map<String, dynamic>) return value;
  if (value is Map) return value.cast<String, dynamic>();
  return const {};
}

List<Map<String, dynamic>> asList(Object? value) {
  if (value is! List) return const [];
  return value.map(asMap).toList();
}

/// `YYYY-MM-DD` — the format every date-typed endpoint expects.
String formatIsoDate(DateTime date) {
  final month = date.month.toString().padLeft(2, '0');
  final day = date.day.toString().padLeft(2, '0');
  return '${date.year}-$month-$day';
}