import {z} from 'zod'

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

export type Slot = number;

export type SlotByNumber = {number: Slot};

export type ConsensusLayerBlockRoot = string;

export type SlotByConsensusLayerBlockRoot = {root: ConsensusLayerBlockRoot};

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

export type SlotByChainView = {view: ChainView};

export type SlotSelector = SlotByNumber | SlotByConsensusLayerBlockRoot | SlotByChainView;

export type CreateApiApiV2EthereumSlotArgs = {body: {chain?: Chain | undefined, slot: SlotSelector}};

export type CreateApiApiV2EthereumSlotOptions = {baseUrl?: string | undefined, ApiKeyAuth?: string | undefined, fetch?: typeof fetch | undefined};

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

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

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

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

export const executionLayerBlockHash = z.string();

export const executionLayerReference = z.object({block: block, hash: executionLayerBlockHash});

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

export const validatorPublicKey = z.string();

export const validator = z.object({index: validatorIndex.nullable().optional(), public_key: validatorPublicKey.optional()});

export const proposalDutyStatus = z.enum(["success", "missed", "orphaned", "scheduled"]);

export const consensusLayerBlockRoot = z.string();

export const hash = z.string();

export const graffiti = z.string().nullable();

export const bLSSignature = z.string();

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

export const validatorSyncCommitteeDutyParticipation = z.object({successful: z.number().int().gte(0), assigned: z.number().int().gte(0), missed: z.number().int().gte(0), missed_including_missed_slots: z.number().int().gte(0), scheduled: z.number().int().gte(0)});

export const validatorAttestationDutyParticipation = z.object({successful: z.number().int().gte(0), assigned: z.number().int().gte(0), missed: z.number().int().gte(0)});

export const wei = z.string();

export const clEventDetails = z.object({count: z.number().int().gte(0), amount: wei});

export const queueEventsQueued = z.object({deposit: clEventDetails, withdrawal_manual: clEventDetails, consolidation: clEventDetails});

export const queueEventsProcessed = z.object({deposit: clEventDetails, withdrawal_sweep: clEventDetails, withdrawal_manual: clEventDetails, consolidation: clEventDetails, voluntary_exit_count: z.number().int().gte(0)});

export const queueEvents = z.object({queued: queueEventsQueued, processed: queueEventsProcessed}).nullable();

export const includedSlashingCounts = z.object({proposer: validatorIndex.optional(), attestation: validatorIndex.optional()}).nullable();

export const finalityParams = z.enum(["not_finalized", "finalized"]);

export const slotOverviewData = z.object({slot: slot, epoch: epoch, timestamp: timestamp, execution_reference: executionLayerReference.nullable().optional(), proposer: validator.nullable().optional(), status: proposalDutyStatus, block_root: consensusLayerBlockRoot.nullable().optional(), parent_root: consensusLayerBlockRoot.nullable().optional(), state_root: hash.nullable().optional(), graffiti: graffiti.optional(), randao_reveal: bLSSignature.nullable().optional(), signature: bLSSignature.nullable().optional(), sync_committee_period: syncCommitteePeriod.nullable(), sync_participation: validatorSyncCommitteeDutyParticipation.nullable().optional(), attestation_participation: validatorAttestationDutyParticipation.nullable().optional(), queue_events: queueEvents.optional(), bls_credential_changes_count: z.number().int().nullable().optional(), included_slashing_count: includedSlashingCounts.optional(), included_blob_commitment_count: z.number().int().nullable().optional(), finality: finalityParams.optional()});

export const slotOverviewContainer = z.object({data: slotOverviewData});

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
};

/**
 * Slot
 * 
 * POST /api/v2/ethereum/slot
 */
export const createApiApiV2EthereumSlot = async (args: CreateApiApiV2EthereumSlotArgs, options?: CreateApiApiV2EthereumSlotOptions) => {
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/slot${query.size > 0 ? `?${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(slotOverviewContainer, await res.json())
};