AlexAegis/advent-of-code

import type { Awaitable } from '@alexaegis/advent-of-code-lib';
import type { GridWorld } from '../world/grid-world.class.js';

export type ExecutorType = number | 'stepper' | 'instant';

export type ExecutorHaltConditionType =
    | 'untilSettled'
    | number
    | 'none'
    | ((world: GridWorld) => boolean);

export abstract class Executor {
    manualHalt = false;

    constructor(
        protected readonly world: GridWorld,
        protected readonly haltCondition: ExecutorHaltConditionType,
    ) {}

    abstract run(): Awaitable<number>;

    halt(): void {
        this.manualHalt = true;
    }

    isHalting(): boolean {
        if (this.manualHalt) {
            return true;
        } else if (this.haltCondition === 'none') {
            return false;
        } else if (this.haltCondition === 'untilSettled') {
            return this.world.systemsSettled;
        } else if (typeof this.haltCondition === 'number') {
            return this.world.timeData.tick >= this.haltCondition;
        } else {
            return this.haltCondition(this.world);
        }
    }
}