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// Copyright 2025 Shota FUJI
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
//
// SPDX-License-Identifier: Apache-2.0

import SwiftUI

struct ConnectionCommands: Commands {
	var onDisconnect: (() -> Void)?

	@FocusedValue(Connection.self) private var conn: Connection?

	var body: some Commands {
		CommandGroup(after: .appInfo) {
			Button("Disconnect", systemImage: "powercode") {
				// FIXME: "disconnect" call panics with "incorrect alignment" error (at call to "deinitListeners")
				if let conn = conn {
					conn.close()
				}

				onDisconnect?()
			}
			.disabled(true)
		}

		CommandGroup(before: .appTermination) {
			Button("Disconnect and Quit Plac") {
				onDisconnect?()

				NSApp.terminate(nil)
			}
		}
	}
}

@main
struct placApp: App {
	@AppStorage("PlacApp.connectedServerId") private var connectedServerId:
		String?

	@AppStorage("PlacApp.token") private var savedToken: String?

	var body: some Scene {
		WindowGroup("Plac", id: "main-window") {
			if let connectedServerId = connectedServerId {
				MainView(serverId: connectedServerId)
			} else {
				ServerDiscovery()
					.onConnect { server in
						connectedServerId = server.id
						savedToken = nil
					}
			}
		}
		.commands {
			ConnectionCommands(onDisconnect: {
				connectedServerId = nil
				savedToken = nil
			})
		}
		.defaultSize(width: 800, height: 600)
	}
}