import {z} from 'zod'

export type GetApiConsumersConsumerIdSyncsSyncidJourneyArgs = {consumer_id: string, syncid: string, language?: (string | null) | undefined};

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

export const journeyResume = z.object({step: z.enum(["connections", "capabilities", "configuration", "preview", "live"]), sub_step: z.string().nullable()});

export const journeySubStep = z.object({key: z.string(), title: z.string().nullable(), status: z.enum(["locked", "todo", "needs_attention", "complete"])});

export const journeyStep = z.object({status: z.enum(["locked", "todo", "needs_attention", "complete"]), sub_steps: z.array(journeySubStep).optional()});

export const journeySteps = z.object({connections: journeyStep, capabilities: journeyStep, configuration: journeyStep, preview: journeyStep, live: journeyStep});

export const journey = z.object({enabled: z.boolean(), resume: journeyResume, steps: journeySteps});

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
};

/**
 * Where a consumer stands in setting up an agentic sync
 * 
 * GET /consumers/{consumer_id}/syncs/{syncid}/journey
 */
export const getApiConsumersConsumerIdSyncsSyncidJourney = async (args: GetApiConsumersConsumerIdSyncsSyncidJourneyArgs, options?: GetApiConsumersConsumerIdSyncsSyncidJourneyOptions) => {
const {baseUrl = "https://api.chift.eu", fetch: fetchFn = fetch, bearerAuth} = options ?? {}

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

if (args.language != null) query.append("language", String(args.language))
if (bearerAuth !== undefined) headers.set('authorization', `Bearer ${bearerAuth}`)

const url = `${baseUrl.replace(/\/+$/, '')}/consumers/${encodeURIComponent(String(args.consumer_id))}/syncs/${encodeURIComponent(String(args.syncid))}/journey${query.size > 0 ? `?${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(journey, await res.json())
};