import {z} from 'zod'

export type GetApiApprovalsApprovalIdArgs = {approval_id: string, 'x-entity-id'?: string | undefined};

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

export const approvalStatus = z.enum(["pending_approval", "approved", "executing", "under_review", "completed", "rejected", "expired", "failed"]);

export const actionType = z.enum(["manage_users_and_policies", "send_money"]);

export const transferMethod = z.enum(["book", "usdc", "usdt", "pyusd", "cash", "usdg", "path_usd", "ach", "wire", "international"]);

export const initiatorIdentityType = z.enum(["web_user", "user_api_key", "entity_api_key", "mcp_oauth", "cli_key", "partner_api_key", "vendor_link", "system"]);

export const displayInitiator = z.object({primary: z.string()});

export const initiator = z.object({email: z.string().nullable().optional(), name: z.string().nullable().optional(), public_id: z.string().nullable().optional(), api_key_id: z.string().nullable().optional(), api_key_nickname: z.string().nullable().optional(), identity_type: initiatorIdentityType.optional(), user_id: z.number().int().nullable().optional(), display: displayInitiator});

export const timestamp = z.string();

export const transferStatus = z.enum(["pending", "pending_approval", "canceled", "processing", "error", "sent", "returned", "void"]);

export const approvalTransferHandle = z.object({id: z.string(), transfer_type: transferMethod, status: transferStatus});

export const approvalResponse = z.object({approval_id: z.string(), status: approvalStatus, action_type: actionType.nullable().optional(), transfer_type: transferMethod.nullable().optional(), amount: z.string().nullable().optional(), counterparty_id: z.string().nullable().optional(), description: z.string().nullable().optional(), recipient_name: z.string().nullable().optional(), source_account: z.string().nullable().optional(), initiator: initiator, approvals_required: z.number().int(), approvals_received: z.number().int(), approver_display_names: z.array(z.string()).nullable().optional(), security_policy_id: z.string().nullable().optional(), created_time: timestamp, expires_at: timestamp.nullable().optional(), executed_transfer: approvalTransferHandle.nullable().optional(), rejection_reason: z.string().nullable().optional(), metadata: z.record(z.string(), z.string().max(200)).nullable().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 Approval
 * 
 * GET /approvals/{approval_id}
 */
export const getApiApprovalsApprovalId = async (args: GetApiApprovalsApprovalIdArgs, options?: GetApiApprovalsApprovalIdOptions) => {
const {baseUrl = "https://api.meow.com/v1", fetch: fetchFn = fetch, apiKeyAuth} = options ?? {}

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

if (args['x-entity-id'] != null) headers.set("x-entity-id", String(args['x-entity-id']))
if (apiKeyAuth !== undefined) headers.set("x-api-key", apiKeyAuth)

const url = `${baseUrl.replace(/\/+$/, '')}/approvals/${encodeURIComponent(String(args.approval_id))}${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(approvalResponse, await res.json())
};