import {z} from 'zod'

export type GetApiProductsArgs = {Authorization: string, start?: number | undefined, limit?: number | undefined, sort?: ('listingName' | '-listingName') | undefined};

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

export const resourceId = z.string();

export const productTags = z.object({applications: z.array(z.enum(["LO Connect", "Encompass Smart Client", "urn:elli:application:consumerconnect", "urn:elli:application:tpoconnect", "urn:elli:application:developerconnect"])).optional(), categories: z.array(z.enum(["APPRAISAL", "FLOOD", "VERIF", "ClosingFees", "PRODUCTPRICING"])).optional(), workflows: z.array(z.enum(["interactive", "automated"])).optional()});

export const resourceCreatedUpdated = z.string();

export const resourceCreatedUpdatedBy = z.string();

export const productCredentialPropertySchema = z.object({id: z.string(), type: z.enum(["string", "number", "boolean"]), title: z.string(), required: z.boolean().optional(), pattern: z.string().optional(), minimum: z.number().int().optional(), maximum: z.number().int().optional(), secret: z.boolean().optional(), scope: z.enum(["user", "company"]).optional()});

export const productCredentialSchema = z.array(productCredentialPropertySchema);

export const productCredentialView = z.object({id: resourceId.optional(), partnerId: z.unknown().optional(), name: z.unknown().optional(), listingName: z.unknown().optional(), requestTypes: z.unknown().optional(), tags: productTags.optional(), environment: z.unknown().optional(), status: z.unknown().optional(), interfaceUrl: z.unknown().optional(), adminInterfaceUrl: z.unknown().optional(), integrationType: z.unknown().optional(), extensionLimit: z.number().int().optional(), created: resourceCreatedUpdated.optional(), createdBy: resourceCreatedUpdatedBy.optional(), updated: resourceCreatedUpdated.optional(), updatedBy: resourceCreatedUpdatedBy.optional(), credential: productCredentialSchema.optional()});

export const getApiProductsResponse = z.array(productCredentialView);

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
};

/**
 * Retrieve all registered products
 * 
 * GET /products
 */
export const getApiProducts = async (args: GetApiProductsArgs, options?: GetApiProductsOptions) => {
const {baseUrl = "https://api.elliemae.com/oauth2/v1", fetch: fetchFn = fetch} = options ?? {}

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

if (args.Authorization != null) headers.set("Authorization", String(args.Authorization))
if (args.start != null) query.append("start", String(args.start))
if (args.limit != null) query.append("limit", String(args.limit))
if (args.sort != null) query.append("sort", String(args.sort))

const url = `${baseUrl.replace(/\/+$/, '')}/products${query.size > 0 ? `?${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(getApiProductsResponse, await res.json())
};