import {z} from 'zod'

export type GetApiOfframpOrdersArgs = {cursor?: string | undefined, limit?: number | undefined, 'x-api-key'?: string | undefined, authorization?: string | undefined};

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

export const onrampReceiptStage = z.union([z.object({status: z.literal("not_started")}), z.object({status: z.literal("pending")}), z.object({status: z.literal("on_hold"), reason: z.enum(["kyc_required", "rfi_open", "review"])}), z.object({status: z.literal("processing")}), z.object({status: z.literal("completed")}), z.object({status: z.literal("failed"), reason: z.enum(["cancelled", "declined", "expired", "provider_error"])})]);

export const onrampConversionStage = z.union([z.object({status: z.literal("not_started")}), z.object({status: z.literal("processing")}), z.object({status: z.literal("on_hold"), reason: z.enum(["rfi_open", "review"])}), z.object({status: z.literal("completed")}), z.object({status: z.literal("failed"), reason: z.enum(["sub_fee", "provider_error"])})]);

export const offrampPayoutStage = z.union([z.object({status: z.literal("not_started")}), z.object({status: z.literal("pending")}), z.object({status: z.literal("on_hold"), reason: z.enum(["rfi_open", "review"])}), z.object({status: z.literal("processing")}), z.object({status: z.literal("submitted")}), z.object({status: z.literal("completed")}), z.object({status: z.literal("failed"), reason: z.enum(["sub_fee", "provider_error"])})]);

export const onrampReturnStage = z.union([z.object({status: z.literal("none")}), z.object({status: z.literal("pending")}), z.object({status: z.literal("processing")}), z.object({status: z.literal("completed"), outcome: z.enum(["full_refund", "adjustment", "unresolved"])}), z.object({status: z.literal("failed")})]);

export const offrampDirectPayment = z.object({kind: z.literal("direct"), from: z.string(), to: z.string(), chain: z.string(), token: z.string(), amount: z.string()});

export const offrampWithdrawalAccountPayment = z.object({kind: z.literal("withdrawal_account"), from: z.string(), to: z.string(), chain: z.string(), token: z.string(), amount: z.string()});

export const offrampPayment = z.discriminatedUnion("kind", [offrampDirectPayment, offrampWithdrawalAccountPayment]);

export const offrampOrder = z.object({id: z.string(), provider: z.enum(["noah", "swapped"]), status: z.enum(["pending", "processing", "completed", "failed", "refunded"]), terminal: z.boolean(), stages: z.object({receipt: onrampReceiptStage, conversion: onrampConversionStage, delivery: offrampPayoutStage, return: onrampReturnStage}), rail: z.union([z.object({kind: z.literal("fiat"), method: z.string()}), z.object({kind: z.literal("exchange"), connection: z.string()})]), fiat: z.object({charged: z.object({total: z.string().nullable(), net: z.string().nullable(), currency: z.string()}).nullable(), eur: z.object({total: z.string().nullable(), net: z.string().nullable()}).nullable(), usd: z.object({total: z.string().nullable(), net: z.string().nullable()}).nullable()}), crypto: z.object({asset: z.string(), network: z.string(), amount: z.string()}).nullable(), providerStatus: z.string(), createdAt: z.string(), updatedAt: z.string(), sender: z.string(), payment: offrampPayment.nullable(), expiresAt: z.string()});

export const offrampOrderPage = z.object({items: z.array(offrampOrder), nextCursor: z.string().nullable()});

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
};

/**
 * List offramp orders
 * 
 * GET /offramp/orders
 * 
 * Also accepts auth: internalProjectBearer, complianceSessionBearer
 */
export const getApiOfframpOrders = async (args: GetApiOfframpOrdersArgs, options?: GetApiOfframpOrdersOptions) => {
const {baseUrl = "https://v1.orchestrator.rhinestone.dev/deposit-processor", fetch: fetchFn = fetch, tenantApiKey} = options ?? {}

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

if (args.cursor != null) query.append("cursor", String(args.cursor))
if (args.limit != null) query.append("limit", String(args.limit))
if (args['x-api-key'] != null) headers.set("x-api-key", String(args['x-api-key']))
if (args.authorization != null) headers.set("authorization", String(args.authorization))
if (tenantApiKey !== undefined) headers.set("x-api-key", tenantApiKey)

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