import { useBridge } from 'scriptcraft-core';
import { ItemStack } from './item';

/**
 * Inventory
 */
export class Inventory {
    /**
     * @internal
     */
    readonly javaObject: JavaObject;

    /**
     * @internal
     */
    constructor(object: JavaObject) {
        this.javaObject = object;
    }

    /**
     * Get Size
     * @returns Inventory Size
     */
    size(): number {
        return useBridge('Inventory.size', this.javaObject) as number;
    }

    /**
     * Get Maximum Stack Size
     * @returns Inventory Maximum Stack Size
     */
    getMaxStackSize(): number {
        return useBridge('Inventory.getMaxStackSize', this.javaObject) as number;
    }

    /**
     * Get Stack In Slot
     * @param slot Inventory Slot
     * @returns Item Stack
     */
    get(slot: number): ItemStack {
        const obj = useBridge('Inventory.get', this.javaObject, slot) as JavaObject;
        if (obj !== null) {
            return new ItemStack(obj);
        } else {
            return null;
        }
    }

    /**
     * Take Item From Slot
     * @param slot Inventory Slot
     * @param count Amount To Take
     * @returns Item Stack
     */
    take(slot: number, count: number): ItemStack {
        const obj = useBridge('Inventory.take', this.javaObject, slot, count) as JavaObject;
        if (obj !== null) {
            return new ItemStack(obj);
        } else {
            return null;
        }
    }

    /**
     * Set Item In Slot
     * @param slot Inventory Slot
     * @param item Item Stack
     */
    set(slot: number, item: ItemStack): void {
        useBridge('Inventory.set', this.javaObject, slot, item.javaObject);
    }
}