import {z} from 'zod'

export type VideoImageUrl = {url: string};

export type VideoFrameImage = {type: string, image_url: VideoImageUrl, frame_type: string};

export type VideoInputReference = {type: string, image_url?: ({url: string} | null) | undefined, video_url?: ({url: string} | null) | undefined};

export type VideosGenerationsRequest = {model: string, prompt: string, duration?: (number | null) | undefined, resolution?: (string | null) | undefined, aspect_ratio?: (string | null) | undefined, frame_images?: (Array<VideoFrameImage> | null) | undefined, input_references?: (Array<VideoInputReference> | null) | undefined, generate_audio?: (boolean | null) | undefined, seed?: (number | null) | undefined};

export type CreateApiV1VideosArgs = {body: VideosGenerationsRequest};

export type CreateApiV1VideosOptions = {baseUrl?: string | undefined, bearerAuth?: string | undefined, fetch?: typeof fetch | undefined};

export const videoJob = z.object({id: z.string(), object: z.string(), model: z.string(), status: z.string(), polling_url: z.string(), created_at: z.number().int(), completed_at: z.number().int().nullable().optional(), duration: z.number().int(), resolution: z.string(), aspect_ratio: z.string(), urls: z.array(z.string()).nullable().optional(), usage: z.object({cost: z.string(), seconds: z.number().int()}).nullable().optional(), error: z.object({message: z.string(), type: 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
};

/**
 * Create a video
 * 
 * POST /v1/videos
 * 
 * Also accepts auth: xApiKeyAuth
 */
export const createApiV1Videos = async (args: CreateApiV1VideosArgs, options?: CreateApiV1VideosOptions) => {
const {baseUrl = "https://api.naga.ac", fetch: fetchFn = fetch, bearerAuth} = options ?? {}

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

if (bearerAuth !== undefined) headers.set('authorization', `Bearer ${bearerAuth}`)

const url = `${baseUrl.replace(/\/+$/, '')}/v1/videos${query.size > 0 ? `?${query}` : ''}`

const res = await fetchFn(url, {method: "POST", headers, body: JSON.stringify(args.body)})

if (!res.ok) throw new Error(`Request failed with status ${res.status}`, {cause: {status: res.status, body: await res.text()}})

return validateResponse(videoJob, await res.json())
};