import {z} from 'zod'

export type GetApiV2StakingMasterAddressArgs = {master_address: string};

export type GetApiV2StakingMasterAddressOptions = {baseUrl?: string | undefined, ApiKey?: string | undefined, fetch?: typeof fetch | undefined};

export const apiTokenAddress = z.object({blockchain: z.string(), address: z.string()});

export const apiTokenVerification = z.enum(["whitelisted", "blacklisted", "community", "unknown"]);

export const apiTokenMetadata = z.object({name: z.string(), symbol: z.string(), decimals: z.number().int(), image_url: z.string().optional(), listed: z.boolean(), verification: apiTokenVerification});

export const apiToken = z.object({address: apiTokenAddress, metadata: apiTokenMetadata});

export const apiStakingTokenInfoLock = z.object({token: apiToken, normalizer: z.number(), price_per_token_usd: z.number()});

export const apiStakingTokenInfo = z.object({token_address: z.string(), asset_usd: z.number(), asset_raw: z.number()});

export const apiStakingRewardsTokenInfo = z.object({token_address: z.string(), end_distribution_unix: z.number().int(), reward_rate: z.number()});

export const apiStakingPositionPeriods = z.object({period_id: z.number().int(), percentage: z.number().int(), lock_duration: z.number().int()});

export const apiStakingGlobalInfo = z.object({total_points: z.number(), apr: z.number(), total_locked_native: z.number(), locked_tokens: z.array(apiStakingTokenInfoLock), distributed_rewards: z.array(apiStakingTokenInfo), actual_rewards: z.array(apiStakingRewardsTokenInfo), periods: z.array(apiStakingPositionPeriods), calculated_at_time: z.number().int().optional()});

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 aggregated information about staking
 * 
 * GET /v2/staking/{master_address}
 */
export const getApiV2StakingMasterAddress = async (args: GetApiV2StakingMasterAddressArgs, options?: GetApiV2StakingMasterAddressOptions) => {
const {baseUrl = "https://backend.swap.coffee", fetch: fetchFn = fetch, ApiKey} = options ?? {}

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

if (ApiKey !== undefined) headers.set("X-Api-Key", ApiKey)

const url = `${baseUrl.replace(/\/+$/, '')}/v2/staking/${encodeURIComponent(String(args.master_address))}${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(apiStakingGlobalInfo, await res.json())
};