import {z} from 'zod'

export type GetApiV4KyaScreeningV2Args = {chain: string, address: string, rule_set_id?: string | undefined, mode?: string | undefined};

export type GetApiV4KyaScreeningV2Options = {baseUrl: string, ApiKeyAuth?: string | undefined, fetch?: typeof fetch | undefined};

export const riskCategory = z.enum(["", "Sanctioned", "TerroristFinancing", "ChildAbuse", "Hack", "Scam", "Ransomware", "Darkweb", "Mixing", "Laundering", "NoKYCExchange", "Gambling", "Blocked", "Blacklisted", "UnregisteredVASP", "RiskyEscrow", "HumanTrafficking", "PoliticalFigure", "Unknown", "Guarantee"]);

export const riskExposureHopForDB = z.object({address: z.string().optional(), amount: z.number().optional(), amount_usd: z.number().optional(), chain: z.string().optional(), direction: z.string().optional(), timestamp: z.number().int().optional(), token_symbol: z.string().optional(), tx_hash: z.string().optional()});

export const riskExposurePathForDB = z.object({amount: z.number().optional(), amount_usd: z.number().optional(), hops: z.array(riskExposureHopForDB).optional(), share: z.number().optional()});

export const riskExposureContextForDB = z.object({amount: z.number().optional(), amount_usd: z.number().optional(), counterparty_address: z.string().optional(), direction: z.string().optional(), hop_count: z.number().int().optional(), path_count: z.number().int().optional(), paths: z.array(riskExposurePathForDB).optional(), paths_aggregated: z.boolean().optional(), share: z.number().optional(), tx_count: z.number().int().optional()});

export const riskLevel = z.enum(["None", "Low", "Medium", "High"]);

export const riskOrigin = z.enum(["self", "counterparty"]);

export const riskSubOrigin = z.enum(["", "label", "entity", "behavior", "structural", "user_blacklist", "address_set", "direct", "indirect", "concentration"]);

export const riskTriggerContextForDB = z.object({rule_id: z.string().optional(), rule_name: z.string().optional(), trigger_id: z.string().optional()});

export const riskSaaSRiskFactor = z.object({category: riskCategory.optional(), exposure: riskExposureContextForDB.optional(), level: riskLevel.optional(), origin: riskOrigin.optional(), sub_origin: riskSubOrigin.optional(), trigger: riskTriggerContextForDB.optional()});

export const screeningTaskVin = z.object({address: z.string().optional(), amount: z.string().optional()});

export const screeningTaskVout = z.object({address: z.string().optional(), amount: z.string().optional()});

export const screeningTaskTransaction = z.object({amount: z.string().optional(), block_number: z.number().int().optional(), chain: z.string().optional(), from: z.string().optional(), hash: z.string().optional(), timestamp: z.number().int().optional(), to: z.string().optional(), token_address: z.string().optional(), token_decimals: z.number().int().optional(), token_name: z.string().optional(), token_price: z.number().optional(), token_symbol: z.string().optional(), type: z.string().optional(), usd_value: z.number().optional(), vins: z.array(screeningTaskVin).optional(), vouts: z.array(screeningTaskVout).optional()});

export const screeningTaskCounterparty = z.object({counterparty: z.string().optional(), risk_factors: z.record(z.string(), z.array(riskSaaSRiskFactor)).optional(), transactions: z.array(screeningTaskTransaction).optional()});

export const entityLocalized = z.object({en: z.string().optional(), zh: z.string().optional()});

export const entityEntity = z.object({country: entityLocalized.optional(), description: entityLocalized.optional(), entity_id: z.string().optional(), entity_name: entityLocalized.optional(), link: z.string().optional(), other_link: z.string().optional()});

export const labelLabels = z.object({address: z.string().optional(), category: z.string().optional(), chain: z.string().optional(), label: z.string().optional(), source: z.string().optional(), sub_category: z.string().optional(), ts: z.number().int().optional()});

export const screeningTaskScreeningResult = z.object({counterparties: z.record(z.string(), screeningTaskCounterparty).optional(), entities: z.array(entityEntity).optional(), labels: z.array(labelLabels).optional(), risk_results: z.record(z.string(), z.array(riskSaaSRiskFactor)).optional()});

export const getApiV4KyaScreeningV2Response = z.object({code: z.number().int().optional(), data: z.object({address: z.string().optional(), api_key: z.string().optional(), chain: z.string().optional(), created_at: z.string().optional(), error: z.string().optional(), finished_at: z.string().optional(), org_id: z.string().optional(), result: screeningTaskScreeningResult.optional(), retry_count: z.number().int().optional(), rule_set_id: z.string().optional(), started_at: z.string().optional(), status: z.string().optional(), updated_at: z.string().optional()}).nullable().optional(), message: z.string().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
};

/**
 * Submit screening result for a blockchain address
 * 
 * GET /v4/kya/screening_v2
 * 
 * Also accepts auth: ApiSecretAuth
 */
export const getApiV4KyaScreeningV2 = async (args: GetApiV4KyaScreeningV2Args, options: GetApiV4KyaScreeningV2Options) => {
const {baseUrl, fetch: fetchFn = fetch, ApiKeyAuth} = options ?? {}

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

if (args.chain != null) query.append("chain", String(args.chain))
if (args.address != null) query.append("address", String(args.address))
if (args.rule_set_id != null) query.append("rule_set_id", String(args.rule_set_id))
if (args.mode != null) query.append("mode", String(args.mode))
if (ApiKeyAuth !== undefined) headers.set("X-API-Key", ApiKeyAuth)

const url = `${baseUrl.replace(/\/+$/, '')}/v4/kya/screening_v2${query.size > 0 ? `?${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(getApiV4KyaScreeningV2Response, await res.json())
};