import {z} from 'zod'

export type GetApiReturnsReturnIdOptions = {baseUrl?: string | undefined, Bearer?: string | undefined, fetch?: typeof fetch | undefined};

export const personNameSchema = z.object({given: z.string(), surname: z.string()});

export const phoneNumberSchema = z.string();

export const moneySchema = z.object({amount: z.string().optional(), currency: z.string().optional()});

export const productSchema = z.object({externalId: z.string().optional(), name: z.string()});

export const itemQuantitySchema = z.number().gt(0);

export const weightSchema = z.object({kg: z.number().gte(0).optional()});

export const productVariantSchema = z.object({externalId: z.string().optional(), name: z.string(), sku: z.string().optional(), weight: weightSchema.optional()});

export const orderReadSchema = z.object({customer: z.object({emailAddress: z.string().optional(), name: personNameSchema, phoneNumber: phoneNumberSchema.optional()}), discounts: moneySchema, externalId: z.string().optional(), id: z.string(), items: z.array(z.object({externalId: z.string().optional(), fulfillmentLocationId: z.string().nullable(), id: z.string(), price: moneySchema, product: productSchema, quantity: itemQuantitySchema, variant: productVariantSchema})), lineItemsTotal: moneySchema, name: z.string(), shippingCost: moneySchema, taxes: moneySchema, total: moneySchema});

export const addressSchema = z.object({city: z.string(), country: z.string(), line1: z.string(), line2: z.string().optional(), postalCode: z.string(), state: z.string()});

export const exchangeProvisionSchema = z.enum(["instant", "deferred"]);

export const returnShipmentSchema = z.object({carrier: z.string().optional(), status: z.enum(["unknown", "pre_transit", "in_transit", "out_for_delivery", "available_for_pickup", "cancelled", "delivered", "error", "failure", "return_to_sender", "expired"]).optional(), tracker: z.string().optional(), trackingUrl: z.string().optional(), postageLabel: z.string().optional(), formLabel: z.string().optional(), shipmentGroupId: z.string().optional(), itemIds: z.array(z.string()).optional(), externalLocationId: z.string().optional(), estimatedDeliveryDate: z.string().optional(), deliveredAt: z.string().optional()});

export const returnDropoffSchema = z.object({shipmentGroupId: z.string(), provider: z.string(), qrCode: z.string().optional(), qrCodeUrl: z.string().optional()});

export const returnStatusSchema = z.enum(["open", "in_transit", "delivered", "needs_review", "in_review", "complete", "rejected", "flagged", "pre_shipment", "deleted"]);

export const returnTypeSchema = z.enum(["claim", "return", "warranty"]);

export const returnReadSchema = z.object({compensationMethods: z.array(z.enum(["refund", "store_credit", "exchange"])).optional(), completeWithNoAction: z.boolean().optional(), createdAt: z.string(), destination: z.object({mailingAddress: addressSchema.optional(), phoneNumber: phoneNumberSchema.optional()}), exchange: z.object({itemCount: z.number().int().optional(), items: z.array(z.object({id: z.string(), originalPrice: z.object({amount: z.string().optional(), currency: z.string().optional()}).optional(), price: z.object({amount: z.string().optional(), currency: z.string().optional(), tax: z.string().optional()}).optional(), product: productSchema.optional(), quantity: itemQuantitySchema, variant: productVariantSchema})), order: z.object({externalId: z.string().optional()}).optional(), provision: exchangeProvisionSchema, totalTax: z.object({amount: z.string().optional(), currency: z.string().optional()}).optional()}).optional(), externalOrderIds: z.array(z.string()).optional(), externalReturnIds: z.array(z.object({provider: z.literal("shopify"), value: z.string()})).optional(), giftCards: z.array(z.object({amount: moneySchema, code: z.string(), externalId: z.string()})), id: z.string(), internalCreatedByName: z.string().optional(), items: z.array(z.object({customerComment: z.string().optional(), exchangeItem: z.object({product: z.object({externalId: z.string().optional(), name: z.string().optional()}).optional(), quantity: z.number().int().optional(), variant: z.object({externalId: z.string().optional(), name: z.string().optional()}).optional()}).optional(), grade: z.string().nullable().optional(), greenReturn: z.boolean().optional(), outcome: z.string().nullable().optional(), shipmentGroupIds: z.array(z.string()).optional(), id: z.string(), orderItem: z.object({id: z.string(), line_item_id: z.string().optional()}), externalReturnLineItemId: z.string().optional(), productId: z.string().optional(), quantity: z.number().int(), reason: z.string(), reasonCode: z.string().optional(), reasons: z.array(z.string()).optional(), reasonCodes: z.array(z.string()).optional(), productAdjustment: z.string().optional(), multipleChoiceQuestions: z.array(z.object({question: z.string(), answer: z.string()})).optional(), assessments: z.array(z.object({assignedUser: z.object({id: z.string(), name: z.string(), firstName: z.string(), lastName: z.string(), email: z.string()}), responses: z.array(z.discriminatedUnion("type", [z.object({type: z.literal("short_text"), value: z.string()}), z.object({type: z.literal("long_text"), value: z.string()}), z.object({type: z.literal("select"), value: z.array(z.string())}), z.object({type: z.literal("number"), value: z.number()}), z.object({type: z.literal("boolean"), value: z.boolean()}), z.object({type: z.literal("file_upload"), value: z.array(z.string())}), z.object({type: z.literal("date"), value: z.string()})]))})).optional(), refund: z.object({amount: moneySchema, type: z.string().optional()}).optional(), productValueNoTaxNoAdjustment: z.object({amount: moneySchema}).optional(), sku: z.string().optional(), upc: z.string().nullable().optional(), status: z.string().optional(), variantId: z.string().optional()})), notes: z.array(z.object({image: z.string().optional(), message: z.string()})).optional(), order: z.object({id: z.string(), name: z.string().optional()}), shipment: returnShipmentSchema.optional(), shipments: z.array(returnShipmentSchema).optional(), dropoffs: z.array(returnDropoffSchema).optional(), shopifyOrderIds: z.array(z.string()).optional(), source: z.object({emailAddress: z.string(), mailingAddress: addressSchema, name: personNameSchema, phoneNumber: phoneNumberSchema}), status: returnStatusSchema, tags: z.array(z.object({name: z.string(), source: z.string()})).optional(), totals: z.object({charge: z.object({amount: moneySchema}), exchange: z.object({amount: moneySchema}), refund: z.object({amount: moneySchema}), storeCredit: z.object({amount: moneySchema})}).optional(), type: returnTypeSchema.optional(), updatedAt: z.string()});

export const getApiReturnsReturnIdResponse = z.object({order: orderReadSchema, return: returnReadSchema});

export const validateResponse = async <Output>(
  schema: {
    readonly '~standard': {
      readonly validate: (value: unknown) => ({ readonly value: Output; readonly issues?: undefined } | { readonly issues: ReadonlyArray<{ readonly message: string; readonly path?: ReadonlyArray<PropertyKey | { readonly key: PropertyKey }> | undefined }> }) | Promise<{ readonly value: Output; readonly issues?: undefined } | { readonly issues: ReadonlyArray<{ readonly message: string; readonly path?: ReadonlyArray<PropertyKey | { readonly key: PropertyKey }> | undefined }> }>
    }
  },
  value: unknown
): Promise<Output> => {
  const result = await schema['~standard'].validate(value)

  if (result.issues !== undefined) {
    const detail = result.issues
      .map(({ message, path }) =>
        path?.length
          ? `${path.map((segment) => String(typeof segment === 'object' ? segment.key : segment)).join('.')}: ${message}`
          : message
      )
      .join('; ')

    throw new Error(`Response does not match the schema: ${detail}`, { cause: { issues: result.issues } })
  }

  return result.value
};

/**
 * Return
 * 
 * GET /returns/{returnId}
 */
export const getApiReturnsReturnId = async (options?: GetApiReturnsReturnIdOptions) => {
const {baseUrl = "https://api.getredo.com/v2.2", fetch: fetchFn = fetch, Bearer} = options ?? {}

const query = new URLSearchParams()
const headers = new Headers()
headers.set('accept', "application/json")

if (Bearer !== undefined) headers.set('authorization', `Bearer ${Bearer}`)

const url = `${baseUrl.replace(/\/+$/, '')}/returns/${encodeURIComponent(String(args.returnId))}${query.size > 0 ? `?${query}` : ''}`

const res = await fetchFn(url, {method: "GET", headers})

if (!res.ok) throw new Error(`Request failed with status ${res.status}`, {cause: {status: res.status, body: await res.text()}})

return validateResponse(getApiReturnsReturnIdResponse, await res.json())
};