import {z} from 'zod'

export type EncodedSerializedTransaction = string;

export type SolanaFeeEstimateRequestParams = {fee_token: string, transaction: EncodedSerializedTransaction};

export type TransferTransactionRequestParams = {amount: number, destination: string, source: string, token: string};

export type SolanaPrepareTransactionRequestParams = {fee_token: string, transaction: EncodedSerializedTransaction};

export type SignTransactionRequestParams = {transaction: EncodedSerializedTransaction};

export type SignAndSendTransactionRequestParams = {transaction: EncodedSerializedTransaction};

export type GetSupportedTokensRequestParams = Record<string, never>;

export type GetFeaturesEnabledRequestParams = Record<string, never>;

export type JsonRpcRequestNetworkRpcRequest = {method: 'feeEstimate', params: SolanaFeeEstimateRequestParams} | {method: 'transferTransaction', params: TransferTransactionRequestParams} | {method: 'prepareTransaction', params: SolanaPrepareTransactionRequestParams} | {method: 'signTransaction', params: SignTransactionRequestParams} | {method: 'signAndSendTransaction', params: SignAndSendTransactionRequestParams} | {method: 'getSupportedTokens', params: GetSupportedTokensRequestParams} | {method: 'getFeaturesEnabled', params: GetFeaturesEnabledRequestParams} | {method: 'rawRpcRequest', params: {method: string, params: unknown}} | {method: string, params: unknown} | {method: string, params: unknown};

export type CreateApiApiV1RelayersRelayerIdRpcArgs = {relayer_id: string, body: JsonRpcRequestNetworkRpcRequest};

export type CreateApiApiV1RelayersRelayerIdRpcOptions = {baseUrl: string, bearerAuth?: string | undefined, fetch?: typeof fetch | undefined};

export const jsonRpcError = z.object({code: z.number().int(), data: z.unknown(), description: z.string(), message: z.string()});

export const jsonRpcId = z.union([z.string(), z.number().int()]);

export const encodedSerializedTransaction = z.string();

export const getSupportedTokensItem = z.object({conversion_slippage_percentage: z.number().optional(), decimals: z.number().int().gte(0), max_allowed_fee: z.number().int().gte(0).optional(), mint: z.string(), symbol: z.string()});

export const solanaRpcResult = z.union([z.object({conversion_rate: z.string(), estimated_fee: z.string(), method: z.literal("feeEstimate")}), z.object({fee_in_lamports: z.string(), fee_in_spl: z.string(), fee_token: z.string(), transaction: encodedSerializedTransaction, valid_until_blockheight: z.number().int().gte(0), method: z.literal("transferTransaction")}), z.object({fee_in_lamports: z.string(), fee_in_spl: z.string(), fee_token: z.string(), transaction: encodedSerializedTransaction, valid_until_blockheight: z.number().int().gte(0), method: z.literal("prepareTransaction")}), z.object({signature: z.string(), transaction: encodedSerializedTransaction, method: z.literal("signTransaction")}), z.object({id: z.string(), signature: z.string(), transaction: encodedSerializedTransaction, method: z.literal("signAndSendTransaction")}), z.object({tokens: z.array(getSupportedTokensItem), method: z.literal("getSupportedTokens")}), z.object({features: z.array(z.string()), method: z.literal("getFeaturesEnabled")}), z.object({method: z.literal("rawRpc")})]);

export const stellarRpcResult = z.unknown();

export const evmRpcResult = z.unknown();

export const jsonRpcResponseNetworkRpcResult = z.object({error: jsonRpcError.optional(), id: jsonRpcId.optional(), jsonrpc: z.string(), result: z.union([solanaRpcResult, stellarRpcResult, evmRpcResult]).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
};

/**
 * Performs a JSON-RPC call using the specified relayer.
 * 
 * POST /api/v1/relayers/{relayer_id}/rpc
 */
export const createApiApiV1RelayersRelayerIdRpc = async (args: CreateApiApiV1RelayersRelayerIdRpcArgs, options: CreateApiApiV1RelayersRelayerIdRpcOptions) => {
const {baseUrl, fetch: fetchFn = fetch, bearerAuth} = options ?? {}

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

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

const url = `${baseUrl.replace(/\/+$/, '')}/api/v1/relayers/${encodeURIComponent(String(args.relayer_id))}/rpc${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(jsonRpcResponseNetworkRpcResult, await res.json())
};