import {z} from 'zod'

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

export type EntityName = string;

export type EvaluationWindow = '24h' | '7d' | '30d' | '90d' | 'all_time';

export type NamedEvaluationWindow = {evaluation_window: EvaluationWindow};

export type Cursor = string;

export type PageSize = number;

export type SubEntitiesSortField = 'beaconscore' | 'net_share' | 'validator_count';

export type SortOrder = 'asc' | 'desc';

export type SubEntitiesOverviewRequest = {chain?: Chain | undefined, entity: EntityName, range: NamedEvaluationWindow, cursor?: Cursor | undefined, page_size?: PageSize | undefined, sort_by?: SubEntitiesSortField | undefined, sort_order?: SortOrder | undefined};

export type CreateApiApiV2EthereumEntitySubEntitiesArgs = {body: SubEntitiesOverviewRequest};

export type CreateApiApiV2EthereumEntitySubEntitiesOptions = {baseUrl?: string | undefined, ApiKeyAuth?: string | undefined, fetch?: typeof fetch | undefined};

export const subEntityName = z.string();

export const percent = z.number().gte(0).lte(1);

export const subEntitiesOverviewData = z.object({sub_entity: subEntityName, validator_count: z.number().int().gte(0), beaconscore: percent.nullable(), net_share: percent});

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

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

export const slotRange = z.object({start: slot, end: slot});

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

export const epochRange = z.object({start: epoch, end: epoch});

export const timeRange = z.object({start: timestamp, end: timestamp});

export const resultRange = z.object({slot: slotRange, epoch: epochRange, timestamp: timeRange});

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

export const createApiApiV2EthereumEntitySubEntitiesResponse = z.object({data: z.array(subEntitiesOverviewData), last_updated: timestamp, range: resultRange, paging: paging.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
};

/**
 * 💎 Sub Entities
 * 
 * POST /api/v2/ethereum/entity/sub-entities
 */
export const createApiApiV2EthereumEntitySubEntities = async (args: CreateApiApiV2EthereumEntitySubEntitiesArgs, options?: CreateApiApiV2EthereumEntitySubEntitiesOptions) => {
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/entity/sub-entities${query.size > 0 ? `?${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(createApiApiV2EthereumEntitySubEntitiesResponse, await res.json())
};