import {z} from 'zod'

export type GetApiEvmLendingProtocolsArgs = {chain_id?: (1 | 8453 | 42161 | 4663 | 56) | undefined, limit?: number | undefined, offset?: number | undefined, order_asc?: (Array<'chainId' | 'protocolId' | 'protocolName' | 'poolCount'>) | undefined, order_desc?: (Array<'chainId' | 'protocolId' | 'protocolName' | 'poolCount'>) | undefined};

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

export const table = z.object({columns: z.array(z.object({name: z.string(), type: z.string()})).optional(), data: z.array(z.array(z.union([z.string(), z.number(), z.boolean(), z.number().int()]))).optional(), rows: z.number().int().optional()});

export const tableResponse = z.array(table);

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
};

/**
 * Lending protocols endpoint
 * 
 * GET /evm/lending/protocols
 */
export const getApiEvmLendingProtocols = async (args: GetApiEvmLendingProtocolsArgs, options: GetApiEvmLendingProtocolsOptions) => {
const {baseUrl, fetch: fetchFn = fetch, ApiKeyAuth} = options ?? {}

const query = new URLSearchParams()
const headers = new Headers()
headers.set('accept', "application/vnd.cambrian.table.v0.0.1+json")

if (args.chain_id != null) query.append("chain_id", String(args.chain_id))
if (args.limit != null) query.append("limit", String(args.limit))
if (args.offset != null) query.append("offset", String(args.offset))
if (args.order_asc != null) query.append("order_asc", args.order_asc.join(','))
if (args.order_desc != null) query.append("order_desc", args.order_desc.join(','))
if (ApiKeyAuth !== undefined) headers.set("X-API-KEY", ApiKeyAuth)

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