44 lines
1.3 KiB
D
44 lines
1.3 KiB
D
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module d_webservice_example.business.todo_notification_service;
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class TodoNotificationService
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{
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import d_webservice_example.data.todo_notification : TodoNotification;
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import d_webservice_example.enums.todo_notification_type : TodoNotificationType;
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import d_webservice_example.mapper.todo_mapper : asTodoTO;
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import d_webservice_example.model.todo : Todo;
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import std.traits : EnumMembers;
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private:
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bool[void delegate(scope TodoNotification) @safe] listeners;
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public:
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this() const nothrow pure @nogc @safe
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{
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}
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void registerListener(scope void delegate(scope const TodoNotification) @safe listener) @safe
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{
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listeners[listener] = true;
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}
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void unRegisterListener(scope void delegate(scope const TodoNotification) @safe listener) @safe
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{
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listeners.remove(listener);
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}
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static foreach (method; EnumMembers!TodoNotificationType)
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{
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import std.conv: to;
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import std.format : format;
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mixin(format!q{
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void onTodo%1$sd(const Todo todo) @safe
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{
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import std.algorithm.iteration : each;
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immutable todoChange = TodoNotification(TodoNotificationType.%1$s, todo);
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listeners.byKey.each!(listener => listener(todoChange));
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}
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}(method.to!string));
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}
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}
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