Buy command

this command would allow users to buy items from the shop.

• /buy

Arguments

id

• Description : id of item you want to buy
• Type : Text
• Argument Required : True

Get Stored Variable - 1

• Variable : shop
• Set Temporary Variable : shop

You would need another Get Stored Variable block for this command.

Get Stored Variable - 2

• Variable : economy
• Set Temporary Variable : users

Image Reference

Calculate Value

• Temporary Variable : item

Expression

let list = var('shop') ?? [];
let currency = "🪙";
let item = find(list, .id == arg('id'));

let balance = find(var('users'), .id == user.id)?.points ?? 0;

item != nil && !( item.role in user.role_ids ) && ( item.require in user.role_ids || item.require == nil ) && ( item.stock == nil || item.stock > 0 ) && balance >= item.price ?
	item
    :
    [
		"# ⚠️ Error",
		"*Make sure the item exists, you have the required role, it's in stock, and you have enough points*",
		"-# *and you cannot buy a role that you already have.*",
		"- **Your Balance :** " + toJSON(balance) + " " + currency,
		"- **Item Price :** " + (item != nil ? toJSON(item.price) + " " + currency : "N/A"),
		"- **Item Stock :** " + (item != nil ? (item.stock != nil ? toJSON(item.stock) : "Unlimited") : "N/A"),
		"- **Required Role :** " + (item != nil ? (item.require != nil ? "<@&" + item.require + ">" : "None") : "N/A"),
	]

Comparison Condition

• Base Value : {{type(var('item'))}}

Else

I've shown the else part before in this section as the setup for Match Condition is quite complex.

• Create Response Message

Response Message

{{var('item') | join("\n")}}

Match Condition

---

Comparison Mode	Comparison Value
Equal	map

Handle Errors Block

• Add a Handle Errors block after the match condition.
• scroll down this page if you want an Image Reference

Handle Errors

⚠️Error Response Message

• Add Create Response Message block after the "Handle Errors" option and paste the following text.

Create Response Message

# ⚠️ Error
- The bot doesn't have appropriate permissions, *or*
- Bot's highest role isn't ranked higher than the reward role, *or*
- The reward role has been deleted / doesn't exist anymore.

Try Blocks

🧩Add Role to Member

• Target User : {{user}}
• Target Role : {{var('item').role}}

💬Create Response Message

• Create an embed

Embed Description

You have successfully bought the item : ** {{var('item').name}}**
*and received the role* - <@&{{var('item').role}}>

> You balance has been reduced by {{toJSON(var('item').price)}} 🪙

• Field Name : Extra Notes :

Field Value

{{var('item').response ?? "none"}}

🛍️Updating item stock and member balance

The following blocks need to be adjacent to the CREATE RESPONSE MESSAGE block as shown in the image.

Image Reference

🧮Calculate Value blocks

A - for member balance

Expression

let list = var('users');
map(list, .id == user.id ? 
{
  "id": .id,
  "points": .points - var('item').price
} : #)

B - for item stock

Expression

let list = var('shop');
let item = findIndex(list, .id == arg('id'));

map(list, #index == item ?
{
    "id": .id,
    "stock": .stock != nil ? .stock - 1 : .stock,
    "name": .name,
    "role": .role,
    "require": .require,
    "price": .price,
    "desc": .desc,
    "response": .response
}
: #)

📝Set Stored Variable blocks

A - for member balance

• Variable : economy
• Operation : Overwrite
• Value : {{result('CALCULATE_VALUE_BLOCK')}}

replace CALCULATE_VALUE_BLOCK with the the ID of the block just above this.

B - for item stock

• Variable : shop
• Operation : Overwrite
• Value : {{result('CALCULATE_VALUE_BLOCK')}}

replace CALCULATE_VALUE_BLOCK with the the ID of the block just above this.