import {z} from 'zod'

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

export const strategyInfo = z.object({pubkey: z.string(), reserve: z.string(), strategy_type: z.enum(["Solend", "Kamino", "MarginFi", "Unknown"]), strategy_name: z.string(), liquidity: z.number().int(), max_allocation: z.number(), isolated: z.boolean(), disabled: z.boolean(), safe_utilization_threshold: z.number()});

export const vaultState = z.object({symbol: z.string(), token_address: z.string(), pubkey: z.string(), is_monitoring: z.boolean(), vault_order: z.number().int(), usd_rate: z.number(), closest_apy: z.number(), average_apy: z.number(), long_apy: z.number(), earned_amount: z.number().int(), virtual_price: z.string(), enabled: z.number().int(), lp_mint: z.string(), fee_pubkey: z.string(), total_amount: z.number().int(), total_amount_with_profit: z.number().int(), token_amount: z.number().int(), fee_amount: z.number().int(), lp_supply: z.number().int(), earned_usd_amount: z.number(), strategies: z.array(strategyInfo), timestamp: z.number().int()});

export const getApiVaultInfoResponse = z.array(vaultState);

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_vault_info
 * 
 * GET /vault_info
 */
export const getApiVaultInfo = async (options?: GetApiVaultInfoOptions) => {
const {baseUrl = "https://damm-api.meteora.ag", fetch: fetchFn = fetch} = options ?? {}

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

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