import {z} from 'zod'

export type AllowDenyPrefer = {allow?: Array<string> | undefined, deny?: Array<string> | undefined, prefer?: Array<string> | undefined};

export type PossibilitiesTopicEnum = 'chains' | 'tokens' | 'bridges' | 'exchanges';

export type PossibilitiesRequest = {chains?: Array<number> | undefined, bridges?: AllowDenyPrefer | undefined, exchanges?: AllowDenyPrefer | undefined, include?: Array<PossibilitiesTopicEnum> | undefined};

export type CreateApiV1AdvancedPossibilitiesArgs = {'x-lifi-api-key'?: string | undefined, body: PossibilitiesRequest};

export type CreateApiV1AdvancedPossibilitiesOptions = {baseUrl?: string | undefined, fetch?: typeof fetch | undefined};

export const token = z.object({address: z.string(), decimals: z.number(), symbol: z.string(), chainId: z.number(), coinKey: z.string().optional(), name: z.string(), logoURI: z.string().optional(), priceUSD: z.string().optional()});

export const chain = z.object({key: z.string(), chainType: z.string().optional(), name: z.string(), coin: z.string(), id: z.number(), mainnet: z.boolean(), logoURI: z.string().optional(), tokenlistUrl: z.string().optional(), faucetUrls: z.array(z.string()).optional(), multicallAddress: z.string().optional(), metamask: z.object({chainId: z.string().optional(), blockExplorerUrls: z.array(z.string()).optional(), chainName: z.string().optional(), nativeCurrency: z.object({name: z.string().optional(), symbol: z.string().optional(), decimals: z.number().optional()}).optional(), rpcUrls: z.array(z.string()).optional()}).optional(), nativeToken: token.optional()});

export const exchangeDefinition = z.object({tool: z.enum(["1inch", "paraswap", "openocean", "0x"]), chains: z.array(z.number())});

export const bridgesEnum = z.string();

export const bridgeDefinition = z.object({tool: bridgesEnum, fromChainId: z.number(), fromToken: token, toChainId: z.number(), toToken: token, maximumTransfer: z.string(), minimumTransfer: z.string(), swapFeeRate: z.string(), swapFeeMinimum: z.string(), swapFeeMaximum: z.string()});

export const possibilitiesResponse = z.object({chains: z.array(chain), tokens: z.array(token), exchanges: z.array(exchangeDefinition), bridges: z.array(bridgeDefinition)});

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
};

/**
 * Get information about available services, chains and tokens
 * 
 * POST /v1/advanced/possibilities
 */
export const createApiV1AdvancedPossibilities = async (args: CreateApiV1AdvancedPossibilitiesArgs, options?: CreateApiV1AdvancedPossibilitiesOptions) => {
const {baseUrl = "https://li.quest", fetch: fetchFn = fetch} = options ?? {}

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

if (args['x-lifi-api-key'] != null) headers.set("x-lifi-api-key", String(args['x-lifi-api-key']))

const url = `${baseUrl.replace(/\/+$/, '')}/v1/advanced/possibilities${query.size > 0 ? `?${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(possibilitiesResponse, await res.json())
};