import { createServerFn } from "@tanstack/react-start"
import { createCartHandlers } from "@wp-reactor/commerce"
import { cartMiddleware } from "./cartMiddleware"

// Wrappers serverFn MINCES autour de `createCartHandlers` (Option B). Le timing
// Woo est injecté depuis l'env de la coque.
const timing = process.env.WOO_TIMING === "1"

export const getCart = createServerFn({ method: "POST" })
	.middleware([cartMiddleware])
	.handler(({ context }) =>
		createCartHandlers({ ...context, timing }).getCart(),
	)

export const addCartItem = createServerFn({ method: "POST" })
	.middleware([cartMiddleware])
	.inputValidator(
		(data: { productId: number; quantity?: number; variationId?: number }) => ({
			productId: Number(data.productId),
			quantity: data.quantity != null ? Number(data.quantity) : undefined,
			variationId:
				data.variationId != null ? Number(data.variationId) : undefined,
		}),
	)
	.handler(({ context, data }) =>
		createCartHandlers({ ...context, timing }).addCartItem(data),
	)

export const removeCartItems = createServerFn({ method: "POST" })
	.middleware([cartMiddleware])
	.inputValidator((data: { keys: string[] }) => ({
		keys: data.keys.map((k) => String(k)),
	}))
	.handler(({ context, data }) =>
		createCartHandlers({ ...context, timing }).removeCartItems(data.keys),
	)

export const updateCartItemQuantities = createServerFn({ method: "POST" })
	.middleware([cartMiddleware])
	.inputValidator(
		(data: { items: Array<{ key: string; quantity: number }> }) => ({
			items: data.items.map((i) => ({
				key: String(i.key),
				quantity: Number(i.quantity),
			})),
		}),
	)
	.handler(({ context, data }) =>
		createCartHandlers({ ...context, timing }).updateCartItemQuantities(
			data.items,
		),
	)

export const applyCoupon = createServerFn({ method: "POST" })
	.middleware([cartMiddleware])
	.inputValidator((data: { code: string }) => ({ code: String(data.code) }))
	.handler(({ context, data }) =>
		createCartHandlers({ ...context, timing }).applyCoupon(data.code),
	)

export const removeCoupons = createServerFn({ method: "POST" })
	.middleware([cartMiddleware])
	.inputValidator((data: { codes: string[] }) => ({
		codes: data.codes.map((c) => String(c)),
	}))
	.handler(({ context, data }) =>
		createCartHandlers({ ...context, timing }).removeCoupons(data.codes),
	)

export const getCheckoutUrl = createServerFn({ method: "POST" })
	.middleware([cartMiddleware])
	.handler(({ context }) =>
		createCartHandlers({ ...context, timing }).getCheckoutUrl(),
	)