import {z} from 'zod'

export type GetApiRoutesRouteIdArgs = {routeId: string};

export type GetApiRoutesRouteIdOptions = {baseUrl?: string | undefined, BasicAuth?: {username: string, password: string} | undefined, fetch?: typeof fetch | undefined};

export const routeIdSchema = z.string();

export const driverIdSchema = z.string();

export const planIdSchema = z.string();

export const routeSchema = z.object({id: routeIdSchema, title: z.string(), stopCount: z.number(), driver: driverIdSchema.nullable(), state: z.object({completed: z.boolean(), completedAt: z.number().nullable(), distributed: z.boolean(), distributedAt: z.number().nullable(), notifiedRecipients: z.boolean(), notifiedRecipientsAt: z.number().nullable(), started: z.boolean(), startedAt: z.number().nullable()}).nullable(), plan: planIdSchema.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
};

/**
 * Retrieve a route
 * 
 * GET /routes/{routeId}
 */
export const getApiRoutesRouteId = async (args: GetApiRoutesRouteIdArgs, options?: GetApiRoutesRouteIdOptions) => {
const {baseUrl = "https://api.spoke.com/public/v1", fetch: fetchFn = fetch, BasicAuth} = options ?? {}

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

if (BasicAuth !== undefined) headers.set('authorization', `Basic ${btoa(`${BasicAuth.username}:${BasicAuth.password}`)}`)

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