import {z} from 'zod'

export type GetApiBlockchainsArgs = {protocol?: string | undefined, deprecated?: boolean | undefined, test?: boolean | undefined, ids?: Array<string> | undefined, pageCursor?: string | undefined, pageSize?: number | undefined};

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

export const blockchainOnchain = z.object({protocol: z.string(), chainId: z.string().optional(), test: z.boolean(), signingAlgo: z.enum(["ECDSA_SECP256K1", "EDDSA_ED25519"])});

export const assetScope = z.enum(["GLOBAL", "LOCAL"]);

export const blockchainMedia = z.object({url: z.string(), type: z.enum(["image/svg+xml", "image/png"])});

export const blockchainExplorer = z.object({base: z.string(), address: z.string().optional(), tx: z.string().optional(), token: z.string().optional()});

export const blockchainMetadata = z.object({scope: assetScope, deprecated: z.boolean(), media: z.array(blockchainMedia).optional(), explorer: blockchainExplorer.optional()});

export const blockchainResponse = z.object({id: z.string(), legacyId: z.string(), displayName: z.string(), nativeAssetId: z.string(), onchain: blockchainOnchain, metadata: blockchainMetadata});

export const listBlockchainsResponse = z.object({data: z.array(blockchainResponse), next: z.string().nullable()});

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
};

/**
 * List blockchains
 * 
 * GET /blockchains
 */
export const getApiBlockchains = async (args: GetApiBlockchainsArgs, options?: GetApiBlockchainsOptions) => {
const {baseUrl = "https://api.fireblocks.io/v1", fetch: fetchFn = fetch} = options ?? {}

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

if (args.protocol != null) query.append("protocol", String(args.protocol))
if (args.deprecated != null) query.append("deprecated", String(args.deprecated))
if (args.test != null) query.append("test", String(args.test))
for (const item of args.ids ?? []) query.append("ids", String(item))
if (args.pageCursor != null) query.append("pageCursor", String(args.pageCursor))
if (args.pageSize != null) query.append("pageSize", String(args.pageSize))

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