import {z} from 'zod'

export type ProbeStatus = 'pending-review' | 'approved' | 'rejected';

export type GetApiProbesArgs = {status?: (ProbeStatus | null) | undefined, limit?: (number | null) | undefined, cursor?: (string | null) | undefined, authorization?: (string | null) | undefined};

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

export const probeStatus = z.enum(["pending-review", "approved", "rejected"]);

export const probeComment = z.object({author: z.string(), verdict: z.enum(["approved", "rejected"]), comment: z.string().nullable(), at: z.string()});

export const probeState = z.object({id: z.string(), site: z.string(), slot: z.string(), subsystem: z.string(), status: probeStatus, mint_run: z.string(), kind: z.enum(["repair", "feature.implement.authored"]).optional(), created_at: z.string(), reviewed_by: z.string().nullable().optional(), reviewed_at: z.string().nullable().optional(), comments: z.array(probeComment).optional()});

export const listProbesResponse = z.object({probes: z.array(probeState), next_cursor: z.string().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
};

/**
 * List Probes
 * 
 * GET /probes
 */
export const getApiProbes = async (args: GetApiProbesArgs, options: GetApiProbesOptions) => {
const {baseUrl, fetch: fetchFn = fetch} = options ?? {}

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

if (args.status != null) query.append("status", String(args.status))
if (args.limit != null) query.append("limit", String(args.limit))
if (args.cursor != null) query.append("cursor", String(args.cursor))
if (args.authorization != null) headers.set("authorization", String(args.authorization))

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