feat: created buy cart command (#1475)

src/classes/Commands/commands/cart/BuyCart.ts

@@ -0,0 +1,115 @@
+import SteamID from 'steamid';
+import CommandHandler, { ICommand } from '../../CommandHandler';
+import pluralize from 'pluralize';
+import { getItemAndAmount } from '../../functions/utils';
+import Bot from '../../../Bot';
+import IPricer from '../../../IPricer';
+import Cart from '../../../Carts/Cart';
+import UserCart from '../../../Carts/UserCart';
+import CommandParser from '../../../CommandParser';
+
+export default class BuyCartCommand implements ICommand {
+    name = 'buycart';
+
+    description = 'Add an item you want to buy to your cart 🛒';
+
+    usage = '[amount] <name>';
+
+    allowInvalidType = false;
+
+    constructor(
+        public readonly bot: Bot,
+        public readonly pricer: IPricer,
+        public readonly commandHandler: CommandHandler
+    ) {
+        this.bot = bot;
+        this.pricer = pricer;
+        this.commandHandler = commandHandler;
+    }
+
+    execute = (steamID: SteamID, message: string) => {
+        const currentCart = Cart.getCart(steamID);
+        const prefix = this.bot.getPrefix(steamID);
+
+        if (currentCart !== null && !(currentCart instanceof UserCart)) {
+            return this.bot.sendMessage(
+                steamID,
+                '❌ You already have an active cart, please finalize it before making a new one. 🛒'
+            );
+        }
+
+        const opt = this.bot.options.commands.buycart;
+
+        if (!opt.enable) {
+            if (!this.bot.isAdmin(steamID)) {
+                const custom = opt.customReply.disabled;
+                return this.bot.sendMessage(steamID, custom ? custom : '❌ This command is disabled by the owner.');
+            }
+        }
+
+        const info = getItemAndAmount(steamID, CommandParser.removeCommand(message), this.bot, prefix, 'buycart');
+
+        if (info === null) {
+            return;
+        }
+
+        let amount = info.amount;
+        const cart =
+            Cart.getCart(steamID) ||
+            new UserCart(
+                steamID,
+                this.bot,
+                this.commandHandler.weaponsAsCurrency.enable ? this.bot.craftWeapons : [],
+                this.commandHandler.weaponsAsCurrency.enable && this.commandHandler.weaponsAsCurrency.withUncraft
+                    ? this.bot.uncraftWeapons
+                    : []
+            );
+
+        const cartAmount = cart.getOurCount(info.priceKey);
+        const ourAmount = this.bot.inventoryManager.getInventory.getAmount({
+            priceKey: info.priceKey,
+            includeNonNormalized: false,
+            tradableOnly: true
+        });
+        const amountCanTrade =
+            this.bot.inventoryManager.amountCanTrade({ priceKey: info.priceKey, tradeIntent: 'selling' }) - cartAmount;
+
+        const name = info.match.name;
+
+        // Correct trade if needed
+        if (amountCanTrade <= 0) {
+            return this.bot.sendMessage(
+                steamID,
+                'I ' +
+                    (ourAmount > 0 ? "can't sell" : "don't have") +
+                    ` any ${(cartAmount > 0 ? 'more ' : '') + pluralize(name, 0)}.`
+            );
+        }
+
+        if (amount > amountCanTrade) {
+            amount = amountCanTrade;
+
+            if (amount === cartAmount && cartAmount > 0) {
+                return this.bot.sendMessage(
+                    steamID,
+                    `I don't have any ${(ourAmount > 0 ? 'more ' : '') + pluralize(name, 0)}.`
+                );
+            }
+
+            this.bot.sendMessage(
+                steamID,
+                `I can only sell ${pluralize(name, amount, true)}. ` +
+                    (amount > 1 ? 'They have' : 'It has') +
+                    ` been added to your cart. Type "${prefix}cart" to view your cart summary or "${prefix}checkout" to checkout. 🛒`
+            );
+        } else
+            this.bot.sendMessage(
+                steamID,
+                `✅ ${pluralize(name, Math.abs(amount), true)}` +
+                    ` has been added to your cart. Type "${prefix}cart" to view your cart summary or "${prefix}checkout" to checkout. 🛒`
+            );
+
+        cart.addOurItem(info.priceKey, amount);
+        Cart.addCart(cart);
+    };
+}