import {z} from 'zod'

export type GetApiApiTranscriptsAvailabilityArgs = {assetId?: string | undefined, webtvUrl?: string | undefined, kalturaId?: string | undefined, entryId?: string | undefined, locale?: ('ar' | 'zh' | 'en' | 'fr' | 'ru' | 'es') | undefined};

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

export const transcriptAvailabilityResponse = z.object({query: z.object({type: z.enum(["assetId", "kalturaId", "entryId"]), value: z.string()}), generationUrl: z.string(), matches: z.array(z.object({assetId: z.string(), kalturaId: z.string(), entryId: z.string().nullable(), removed: z.boolean(), pvSymbol: z.string().nullable(), pvPart: z.number().int().gte(-9007199254740991).lte(9007199254740991).nullable(), pageUrl: z.string(), jsonUrl: z.string(), generationUrl: z.string(), status: z.enum(["available", "processing", "unavailable", "removed"]), languages: z.array(z.object({language: z.string(), status: z.enum(["scheduled", "transcribing", "identifying_speakers", "analyzing_topics", "completed", "no_content", "error", "interrupted"]), transcriptId: z.string()}))}))});

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
};

/**
 * Resolve a recording and its transcript availability
 * 
 * GET /api/transcripts/availability
 */
export const getApiApiTranscriptsAvailability = async (args: GetApiApiTranscriptsAvailabilityArgs, options: GetApiApiTranscriptsAvailabilityOptions) => {
const {baseUrl, fetch: fetchFn = fetch} = options ?? {}

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

if (args.assetId != null) query.append("assetId", String(args.assetId))
if (args.webtvUrl != null) query.append("webtvUrl", String(args.webtvUrl))
if (args.kalturaId != null) query.append("kalturaId", String(args.kalturaId))
if (args.entryId != null) query.append("entryId", String(args.entryId))
if (args.locale != null) query.append("locale", String(args.locale))

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