import {z} from 'zod'

export type GetApiComplianceStatusArgs = {authorization: string};

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

export const complianceVerificationStatus = z.enum(["not_started", "pending", "approved", "declined"]);

export const complianceStatusResponse = z.object({status: complianceVerificationStatus, updatedAt: z.string(), verification: z.object({actionsRequired: z.array(z.string()), entities: z.array(z.object({entity: z.string(), status: z.enum(["Pending", "Approved", "Declined"]), model: z.string(), rejectType: z.enum(["Final", "Retry"]).optional()})), agreements: z.array(z.object({name: z.string(), version: z.number().int(), accepted: z.boolean()}))}).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
};

/**
 * Read the canonical verification state for the session customer
 * 
 * GET /compliance/status
 */
export const getApiComplianceStatus = async (args: GetApiComplianceStatusArgs, options?: GetApiComplianceStatusOptions) => {
const {baseUrl = "https://v1.orchestrator.rhinestone.dev/deposit-processor", fetch: fetchFn = fetch} = options ?? {}

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

if (args.authorization != null) headers.set("authorization", String(args.authorization))

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