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@ -17,9 +17,12 @@ class OccasionConfigModel {
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/// default/current theme, regardless of any other field below.
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final bool enabled;
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/// Optional activation window. When both are present, the theme is only
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/// considered active if `DateTime.now()` falls within [startDate, endDate].
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/// When null, the [enabled] flag alone controls activation.
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/// Activation window. Both must be present and `DateTime.now()` must fall
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/// within [startDate, endDate] for this occasion to be eligible — a
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/// missing date on either side makes the occasion inactive (dates are
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/// mandatory, not an optional override of [enabled]). This lets several
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/// occasions be scheduled in advance in the same list (see
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/// [OccasionConfigModel.resolveActive]) without colliding.
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final DateTime? startDate;
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final DateTime? endDate;
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@ -66,13 +69,9 @@ class OccasionConfigModel {
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return OccasionConfigModel(
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key: (json['key'] as String?) ?? 'none',
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enabled: (json['enabled'] as bool?) ?? false,
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// enabled: true,
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startDate: _parseDate(json['start_date']),
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endDate: _parseDate(json['end_date']),
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// enabled: true,
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// startDate: _parseDate("2026-09-30T00:00:00Z"),
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// endDate: _parseDate("2026-10-07T00:00:00Z"),
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primaryColorHex: json['primary_color'] as String?,
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backgroundOpacityImage: json['background_opacity_image'] as String?,
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backgroundImageOpacity: (json['background_image_opacity'] as num?)?.toDouble() ?? 1.0,
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@ -80,6 +79,25 @@ class OccasionConfigModel {
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);
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}
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/// Parses the remote-config value as a JSON array of occasions — lets
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/// several occasions be scheduled in advance (e.g. National Day, Founding
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/// Day, Eid), each with its own non-overlapping [startDate]/[endDate]
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/// window, all under the same `occasion_config` remote-config key.
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static List<OccasionConfigModel> listFromJson(List<dynamic> jsonList) {
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return jsonList.map((e) => OccasionConfigModel.fromJson(e as Map<String, dynamic>)).toList();
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}
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/// Picks whichever scheduled occasion is enabled and whose
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/// [startDate]/[endDate] window contains `now` — first match in list
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/// order wins, so entries are expected not to overlap. Returns
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/// [OccasionConfigModel.disabled] when nothing matches.
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static OccasionConfigModel resolveActive(List<OccasionConfigModel> configs, [DateTime? now]) {
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for (final config in configs) {
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if (config.enabled && config.isWithinActiveWindow(now)) return config;
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}
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return OccasionConfigModel.disabled();
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}
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static DateTime? _parseDate(dynamic value) {
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if (value == null) return null;
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if (value is String && value.isNotEmpty) {
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@ -89,11 +107,13 @@ class OccasionConfigModel {
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}
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/// Whether "now" falls inside the configured activation window.
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/// If no window is configured, the [enabled] flag alone decides.
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/// Both [startDate] and [endDate] are required — if either is missing,
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/// this occasion is never considered active (see field doc above).
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bool isWithinActiveWindow([DateTime? now]) {
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if (startDate == null || endDate == null) return false;
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final current = now ?? DateTime.now();
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if (startDate != null && current.isBefore(startDate!)) return false;
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if (endDate != null && current.isAfter(endDate!)) return false;
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if (current.isBefore(startDate!)) return false;
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if (current.isAfter(endDate!)) return false;
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return true;
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}
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@ -125,4 +145,3 @@ class OccasionConfigModel {
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'header_image': headerImage,
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};
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}
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