import {z} from 'zod'

export type GetApiGetBlockArgs = {include_data?: boolean | undefined};

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

export const mD5 = z.string();

export const preciseNumber = z.string();

export const blockDetails = z.object({prev_block_id: mD5.optional(), height: z.number().int().optional(), round: z.number().int().optional(), num_confirmed: z.object({algorithm: z.number().int().optional(), benchmark: z.number().int().optional(), binary: z.number().int().optional(), advance: z.number().int().optional(), challenge: z.number().int().optional(), deposit: z.number().int().optional(), fraud: z.number().int().optional(), precommit: z.number().int().optional(), proof: z.number().int().optional(), topup: z.number().int().optional()}).optional(), num_active: z.object({algorithm: z.number().int().optional(), benchmark: z.number().int().optional(), advance: z.number().int().optional(), challenge: z.number().int().optional(), deposit: z.number().int().optional(), opow: z.number().int().optional(), player: z.number().int().optional()}).optional(), timestamp: z.number().int().optional(), emissions: z.object({algorithm: preciseNumber.optional(), advance: preciseNumber.optional(), benchmarker: preciseNumber.optional(), delegator: preciseNumber.optional(), bootstrap: preciseNumber.optional(), vault: preciseNumber.optional(), challenge_owner: preciseNumber.optional()}).optional(), gamma_value: z.number().optional()});

export const algorithmId = z.string();

export const challengeId = z.string();

export const address = z.string();

export const blockData = z.object({confirmed_ids: z.object({algorithm: z.array(algorithmId).optional(), benchmark: z.array(mD5).optional(), binary: z.array(algorithmId).optional(), advance: z.array(algorithmId).optional(), challenge: z.array(challengeId).optional(), deposit: z.array(address).optional(), fraud: z.array(address).optional(), precommit: z.array(address).optional(), proof: z.array(address).optional(), topup: z.array(address).optional()}).optional(), active_ids: z.object({code: z.array(algorithmId).optional(), benchmark: z.array(mD5).optional(), advance: z.array(algorithmId).optional(), challenge: z.array(challengeId).optional(), deposit: z.array(mD5).optional(), opow: z.array(address).optional(), player: z.array(address).optional()}).optional()});

export const block = z.object({id: mD5.optional(), details: blockDetails.optional(), data: blockData.optional(), config: z.object({}).optional()});

export const getBlockResponse = z.object({block: block.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 latest block
 * 
 * GET /get-block
 */
export const getApiGetBlock = async (args: GetApiGetBlockArgs, options?: GetApiGetBlockOptions) => {
const {baseUrl = "https://mainnet-api.tig.foundation", fetch: fetchFn = fetch} = options ?? {}

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

if (args.include_data != null) query.append("include_data", String(args.include_data))

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