import {z} from 'zod'

export type GetApiChainIdApiV2SearchArgs = {q?: (string | null) | undefined, next_page_params_type?: string | undefined, label?: Record<string, never> | undefined, token?: Record<string, never> | undefined, contract?: Record<string, never> | undefined, tac_operation?: Record<string, never> | undefined, metadata_tag?: Record<string, never> | undefined, block?: Record<string, never> | undefined, blob?: Record<string, never> | undefined, user_operation?: Record<string, never> | undefined, address?: Record<string, never> | undefined, ens_domain?: Record<string, never> | undefined, chain_id: string};

export type GetApiChainIdApiV2SearchOptions = {baseUrl?: string | undefined, bearerAuth?: string | undefined, fetch?: typeof fetch | undefined};

export const searchResult = z.object({items: z.array(z.object({})).optional(), next_page_params: z.record(z.string(), z.unknown()).nullable().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
};

/**
 * Search for tokens, addresses, contracts, blocks, or transactions by identifier
 * 
 * GET /{chain_id}/api/v2/search
 * 
 * Also accepts auth: apiKeyAuth
 */
export const getApiChainIdApiV2Search = async (args: GetApiChainIdApiV2SearchArgs, options?: GetApiChainIdApiV2SearchOptions) => {
const {baseUrl = "https://api.blockscout.com", fetch: fetchFn = fetch, bearerAuth} = options ?? {}

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

if (args.q != null) query.append("q", String(args.q))
if (args.next_page_params_type != null) query.append("next_page_params_type", String(args.next_page_params_type))
if (args.label != null) query.append("label", JSON.stringify(args.label))
if (args.token != null) query.append("token", JSON.stringify(args.token))
if (args.contract != null) query.append("contract", JSON.stringify(args.contract))
if (args.tac_operation != null) query.append("tac_operation", JSON.stringify(args.tac_operation))
if (args.metadata_tag != null) query.append("metadata_tag", JSON.stringify(args.metadata_tag))
if (args.block != null) query.append("block", JSON.stringify(args.block))
if (args.blob != null) query.append("blob", JSON.stringify(args.blob))
if (args.user_operation != null) query.append("user_operation", JSON.stringify(args.user_operation))
if (args.address != null) query.append("address", JSON.stringify(args.address))
if (args.ens_domain != null) query.append("ens_domain", JSON.stringify(args.ens_domain))
if (bearerAuth !== undefined) headers.set('authorization', `Bearer ${bearerAuth}`)

const url = `${baseUrl.replace(/\/+$/, '')}/${encodeURIComponent(String(args.chain_id))}/api/v2/search${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(searchResult, await res.json())
};