const itemTable         = require("../Data/items");
const constants         = require("../Data/constants");

const { CATEGORIES }    = constants;
const { CATEGORY_ITEM } = CATEGORIES;

class Item {
    constructor(config) {
        this.categoryID = CATEGORY_ITEM;
        this.id = config.id;
        this.amount = config.amount;
        this.affects = config.affects;
        this.scale = config.scale;
        this.isDurable = config.isDurable;
        this.time = config.time;
        this.isActive = false;
    }

    use(amount) {
        const itemScheme = itemTable[this.id];
        if (!itemScheme) return;

        if (!this.amount) return global.logger.send({ event: "itemUsage", reason: "item amount is 0" });
        
        if (!amount) amount = 1;
        
        const removedAmount = Math.min(amount, this.amount);
        this.amount -= removedAmount;

        if (!this.amount && itemScheme.isDurable) this.isActive = false;

        return { 
            scale: this.scale, 
            statusID: itemScheme.statusID, 
            isStatusActive: this.amount && itemScheme.isDurable
        };
    }

    activate(amount) {
        const itemScheme = itemTable[this.id];
        if (!itemScheme) return;
        if (!this.amount) return;

        if (!amount) amount = 1;

        const removedAmount = itemScheme.useOnImpact ? Math.min(amount, this.amount) : 0;

        if (itemScheme.isDurable) this.isActive = true;
        else {
            this.nextUseAt = performance.now() + itemScheme.cooldown;
            this.amount -= removedAmount;
        };

        return {
            ...this,
            removedAmount 
        };
    }
};

module.exports = Item;