import {z} from 'zod'

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

export const bridgeTokenEntry = z.object({token: z.string(), address: z.string(), decimals: z.number(), maxDepositLimit: z.number().optional(), maxWithdrawLimit: z.number().optional(), minAmountUsdInContract: z.number().optional(), allowedRouteChains: z.array(z.string()).optional()});

export const bridgeBadge = z.object({type: z.enum(["new", "hot", "campaign", "achievement", "free", "airdrop", "optimistic", "launch"]), translationKey: z.enum(["airdrop", "free_gas", "memes", "hot", "new"])});

export const bridgeConfigEntrySchema = z.object({name: z.string(), type: z.enum(["EVM", "SOL", "STK", "TON", "TRON", "CEX", "KARNOT", "STELLAR"]), networkId: z.string(), contractAddress: z.string(), multicallContractAddress: z.string().optional(), confirmationBlocks: z.number(), avgBlockTime: z.number(), nativeTokenName: z.string(), nativeTokenDecimals: z.number(), nativeTokenSafeguard: z.number(), gasMultiplier: z.number().optional(), blockExplorer: z.string(), rpc: z.string(), site: z.string(), status: z.enum(["enabled", "disabled"]), statusReason: z.string().optional(), tokens: z.record(z.string(), bridgeTokenEntry), badge: bridgeBadge.optional(), category: z.enum(["experimental", "popular"]).optional(), paradexSignerChainId: z.string().optional(), gasBoostEnabled: z.boolean(), enabledDepositAddress: z.boolean(), sameChainSwapsAddress: z.string().optional(), executionChain: z.string().optional()});

export const getApiConfigsResponse = z.record(z.string(), bridgeConfigEntrySchema);

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
};

/**
 * Configs (chains & tokens)
 * 
 * GET /configs
 */
export const getApiConfigs = async (options?: GetApiConfigsOptions) => {
const {baseUrl = "https://api.rhino.fi/bridge", fetch: fetchFn = fetch} = options ?? {}

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

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