import {z} from 'zod'

export type DomainName = string;

export type GetApiDomainsNameArgs = {name: DomainName, $expand?: (Array<'records' | 'registration'>) | undefined};

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

export const domainRecords = z.record(z.string(), z.string());

export const domainName = z.string();

export const ownerType = z.enum(["NONE", "UD", "SELF", "EXTERNAL"]);

export const ownerAddress = z.string();

export const domainOwnerResponse = z.object({type: ownerType, address: ownerAddress.optional()});

export const domainAvailabilityStatus = z.enum(["AVAILABLE", "AVAILABLE_FROM_ISSUER", "REGISTERED", "PROTECTED", "COMING_SOON", "DISALLOWED", "RESERVED", "EXCEEDS_PRICE_LIMIT"]);

export const domainPriceType = z.enum(["STANDARD", "PREMIUM", "DEFERRED"]);

export const domainPriceItemResponse = z.object({usdCents: z.number()});

export const domainPriceResponse = z.object({type: domainPriceType, listPrice: domainPriceItemResponse, subTotal: domainPriceItemResponse});

export const domainAvailabilityResponse = z.object({status: domainAvailabilityStatus, price: domainPriceResponse.optional(), issuer: domainOwnerResponse.optional()});

export const domainRegistrationResponse = z.object({tokenId: z.string(), tokenType: z.enum(["ERC721", "ERC1155"]).optional()});

export const blockchainType = z.enum(["MATIC", "ETH", "BASE"]);

export const domainSearchResponse = z.object({"@type": z.literal("unstoppabledomains.com/partner.v3.Domain"), records: domainRecords.nullable().optional(), name: domainName, owner: domainOwnerResponse, availability: domainAvailabilityResponse, registration: domainRegistrationResponse.nullable().optional(), blockchain: blockchainType.optional()});

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
};

/**
 * Get domain details and availability
 * 
 * GET /domains/{name}
 */
export const getApiDomainsName = async (args: GetApiDomainsNameArgs, options?: GetApiDomainsNameOptions) => {
const {baseUrl = "https://api.unstoppabledomains.com/partner/v3", fetch: fetchFn = fetch, bearer} = options ?? {}

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

for (const item of args.$expand ?? []) query.append("$expand", String(item))
if (bearer !== undefined) headers.set('authorization', `Bearer ${bearer}`)

const url = `${baseUrl.replace(/\/+$/, '')}/domains/${encodeURIComponent(String(args.name))}${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(domainSearchResponse, await res.json())
};