import {z} from 'zod'

export type Chain = 'mainnet' | 'hoodi';

export type Block = number;

export type BlockByNumber = {number: Block};

export type ChainView = 'latest' | 'finalized';

export type BlockByChainView = {view: ChainView};

export type BlockSelector = BlockByNumber | BlockByChainView;

export type SlotOffsetMs = number;

export type SlotOffsetMsRange = {min?: (SlotOffsetMs | null) | undefined, max?: (SlotOffsetMs | null) | undefined};

export type Cursor = string;

export type MevBidsPageSize = number;

export type BlockMevBidsRequest = {chain?: Chain | undefined, block: BlockSelector, slot_offset_ms_range?: SlotOffsetMsRange | undefined, cursor?: Cursor | undefined, page_size?: MevBidsPageSize | undefined};

export type CreateApiApiV2EthereumBlockMevBidsArgs = {body: BlockMevBidsRequest};

export type CreateApiApiV2EthereumBlockMevBidsOptions = {baseUrl?: string | undefined, ApiKeyAuth?: string | undefined, fetch?: typeof fetch | undefined};

export const wei = z.string();

export const slotOffsetMs = z.number().int();

export const block = z.number().int().gte(0);

export const mevSource = z.enum(["get_header", "data_api", "ultrasound"]);

export const blockMevBidData = z.object({relay: z.string(), builder_pubkey: z.string().nullable(), value: wei, slot_offset_ms: slotOffsetMs.nullable(), relay_received_at: z.number().int(), won: z.boolean(), block_number: block, block_hash: z.string(), parent_hash: z.string(), source: mevSource, optimistic_submission: z.boolean()});

export const paging = z.object({next_cursor: z.string().optional()});

export const createApiApiV2EthereumBlockMevBidsResponse = z.object({data: z.array(blockMevBidData), paging: paging.optional(), ready: z.boolean()});

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
};

/**
 * 💎 MEV Bids
 * 
 * POST /api/v2/ethereum/block/mev-bids
 */
export const createApiApiV2EthereumBlockMevBids = async (args: CreateApiApiV2EthereumBlockMevBidsArgs, options?: CreateApiApiV2EthereumBlockMevBidsOptions) => {
const {baseUrl = "https://beaconcha.in", fetch: fetchFn = fetch, ApiKeyAuth} = options ?? {}

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

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

const url = `${baseUrl.replace(/\/+$/, '')}/api/v2/ethereum/block/mev-bids${query.size > 0 ? `?${query}` : ''}`

const res = await fetchFn(url, {method: "POST", headers, body: JSON.stringify(args.body)})

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

return validateResponse(createApiApiV2EthereumBlockMevBidsResponse, await res.json())
};