import { z } from "zod/v4";

export enum InvoiceStatus {
	Draft = "draft",
	Open = "open",
	Void = "void",
	Paid = "paid",
	Uncollectible = "uncollectible",
}

export const InvoiceDiscountSchema = z.object({
	stripe_coupon_id: z.string(), // Stripe ID
	coupon_name: z.string(),
	amount_off: z.number(),
	amount_used: z.number(),
});

export const InvoiceItemSchema = z.object({
	price_id: z.string().nullish(),
	stripe_id: z.string(),
	internal_feature_id: z.string().nullable(),
	description: z.string(),
	period_start: z.number(),
	period_end: z.number(),
});

export const InvoiceSchema = z.object({
	id: z.string(),
	created_at: z.number(),
	internal_customer_id: z.string(),
	internal_entity_id: z.string().nullable(),
	product_ids: z.array(z.string()),
	internal_product_ids: z.array(z.string()),

	// Stripe fields
	stripe_id: z.string(),
	status: z.nativeEnum(InvoiceStatus).nullable().optional(),
	hosted_invoice_url: z.string().nullable(),

	// Total amount of the invoice
	total: z.number(),
	refunded_amount: z.number().default(0),
	currency: z.string(),
	receipt_url: z.string().nullish(),
	discounts: z.array(InvoiceDiscountSchema),
	items: z.array(InvoiceItemSchema),
});

export type Invoice = z.infer<typeof InvoiceSchema>;
export type InvoiceDiscount = z.infer<typeof InvoiceDiscountSchema>;
export type InvoiceItem = z.infer<typeof InvoiceItemSchema>;