import { Modding, OnStart } from "@flamework/core";
import { Players } from "@rbxts/services";

import { OnPlayerJoined, OnPlayerQuit } from "../../../shared/modding/players";

/**
 * This Service Manage some player event with modding.
 */
export class PlayerEventsService implements OnStart {
    /**
     * @inheritdoc
     */
    onStart() {
        const playerJoinListener = new Set<OnPlayerJoined>();
        const playerQuitListener = new Set<OnPlayerQuit>();

        Modding.onListenerAdded<OnPlayerJoined>((object) => playerJoinListener.add(object));
        Modding.onListenerRemoved<OnPlayerJoined>((object) => playerJoinListener.delete(object));
        Modding.onListenerAdded<OnPlayerQuit>((object) => playerQuitListener.add(object));
        Modding.onListenerRemoved<OnPlayerQuit>((object) => playerQuitListener.delete(object));

        Players.PlayerAdded.Connect((player) => {
            for (const listener of playerJoinListener) {
                task.spawn(() => listener.onPlayerJoined(player));
            }
        });

        Players.PlayerRemoving.Connect((player) => {
            for (const listener of playerQuitListener) {
                task.spawn(() => listener.onPlayerQuit(player));
            }
        });

        for (const player of Players.GetPlayers()) {
            for (const listener of playerJoinListener) {
                task.spawn(() => listener.onPlayerJoined(player));
            }
        }
    }
}