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// Copyright 2025 Shota FUJI
//
// This Source Code Form is subject to the terms of the Mozilla Public
// License, v. 2.0. If a copy of the MPL was not distributed with this
// file, You can obtain one at https://mozilla.org/MPL/2.0/.
//
// SPDX-License-Identifier: MPL-2.0

using GLib;

namespace TimeTracker.Event {
	public errordomain EventTypeError {
		UNKNOWN_EVENT,
	}

	public enum EventType {
		TIMER_DELETED,
		TIMER_STARTED,
		TIMER_STOPPED,
		TIMER_TITLE_CHANGED,
		UNKNOWN;

		public Type to_type() throws EventTypeError {
			switch (this) {
			case TIMER_DELETED:
				return typeof(TimerDeleted);
			case TIMER_STARTED:
				return typeof(TimerStarted);
			case TIMER_STOPPED:
				return typeof(TimerStopped);
			case TIMER_TITLE_CHANGED:
				return typeof(TimerTitleChanged);
			default:
				throw new EventTypeError.UNKNOWN_EVENT(@"Unknown event type $this.");
			}
		}

		public static EventType from_event(Event event) throws EventTypeError {
			if (event is TimerDeleted) {
				return TIMER_DELETED;
			}

			if (event is TimerStarted) {
				return TIMER_STARTED;
			}

			if (event is TimerStopped) {
				return TIMER_STOPPED;
			}

			if (event is TimerTitleChanged) {
				return TIMER_TITLE_CHANGED;
			}

			throw new EventTypeError.UNKNOWN_EVENT(@"$(event.get_type().name()) is not a valid event type.");
		}
	}
}