import {z} from 'zod'

export type GetApiVaultAssetsArgs = {accountNamePrefix?: string | undefined, accountNameSuffix?: string | undefined};

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

export const rewardsInfo = z.object({pendingRewards: z.string().optional()});

export const vaultAsset = z.object({id: z.string().optional(), total: z.string().optional(), balance: z.string().optional(), available: z.string().optional(), pending: z.string().optional(), frozen: z.string().optional(), lockedAmount: z.string().optional(), staked: z.string().optional(), totalStakedCPU: z.string().optional(), totalStakedNetwork: z.string().optional(), selfStakedCPU: z.string().optional(), selfStakedNetwork: z.string().optional(), pendingRefundCPU: z.string().optional(), pendingRefundNetwork: z.string().optional(), blockHeight: z.string().optional(), blockHash: z.string().optional(), rewardsInfo: rewardsInfo.optional()});

export const getVaultAssetsResponse = z.array(vaultAsset);

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 asset balance for chosen assets
 * 
 * GET /vault/assets
 */
export const getApiVaultAssets = async (args: GetApiVaultAssetsArgs, options?: GetApiVaultAssetsOptions) => {
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.accountNamePrefix != null) query.append("accountNamePrefix", String(args.accountNamePrefix))
if (args.accountNameSuffix != null) query.append("accountNameSuffix", String(args.accountNameSuffix))

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