import {z} from 'zod'

export type Bsn = string;

export type GetApiClaimsBsnArgs = {bsn: Bsn, approved?: boolean | undefined, includeRejected?: boolean | undefined};

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

export const claimID = z.string();

export const bsn = z.string();

export const caseID = z.string();

export const claim = z.object({id: claimID, bsn: bsn, service: z.string(), law: z.string(), key: z.string(), caseId: caseID.optional(), newValue: z.unknown(), reason: z.string(), claimant: z.string(), oldValue: z.unknown(), evidencePath: z.string().optional(), status: z.enum(["PENDING", "APPROVED", "REJECTED"])});

export const claimList = z.array(claim);

export const getApiClaimsBsnResponse = z.object({data: claimList});

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 all claims
 * 
 * GET /claims/{bsn}
 */
export const getApiClaimsBsn = async (args: GetApiClaimsBsnArgs, options?: GetApiClaimsBsnOptions) => {
const {baseUrl = "https://rvig-engine.bzlg.apps.digilab.network/v0", fetch: fetchFn = fetch} = options ?? {}

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

if (args.approved != null) query.append("approved", String(args.approved))
if (args.includeRejected != null) query.append("includeRejected", String(args.includeRejected))

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