import {z} from 'zod'

export type MotionAspectRatio = '16:9' | '9:16' | '1:1' | '4:5' | '21:9';

export type MotionDurationBucket = '<10s' | '10-30s' | '30s-1min' | '1-5min';

export type MotionDesignSystemId = 'mosaic' | 'apple' | 'claude' | 'cursor' | 'linear' | 'vercel' | 'stripe' | 'figma' | 'notion' | 'spotify' | 'supabase' | 'raycast' | 'framer' | 'resend' | 'mintlify' | 'sentry' | 'tesla' | 'nike' | 'shopify' | 'airbnb' | 'posthog';

export type MotionDesignMd = {filename?: string | undefined, sourceUrl?: string | undefined, content: string, jsonFilename?: string | undefined, jsonContent?: string | undefined};

export type MotionAttachment = {url: string, name?: string | undefined, type?: ('image' | 'video' | 'audio' | 'file') | undefined, content_type?: string | undefined};

export type CreateMotionSessionRequest = {prompt: string, aspect_ratio?: MotionAspectRatio | undefined, duration?: MotionDurationBucket | undefined, design_system_id?: MotionDesignSystemId | undefined, design_md?: (string | MotionDesignMd) | undefined, style_reference_url?: string | undefined, attachments?: Array<MotionAttachment> | undefined, engine?: string | undefined, effort?: ('standard' | 'extended' | 'light' | 'medium' | 'high') | undefined, mode?: ('light' | 'medium' | 'high') | undefined, template?: string | undefined};

export type CreateApiSessionsJobIdFollowupsArgs = {job_id: string, body: CreateMotionSessionRequest};

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

export const createMotionSessionResponse = z.object({job_id: z.string(), status: z.literal("queued"), status_url: z.string(), chat_url: z.string().nullable().optional(), engine: z.string().nullable().optional(), effort: z.enum(["standard", "extended", "light", "medium", "high", "null"]).nullable().optional(), template: 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 followup for a completed or input-awaiting video job
 * 
 * POST /sessions/{job_id}/followups
 */
export const createApiSessionsJobIdFollowups = async (args: CreateApiSessionsJobIdFollowupsArgs, options?: CreateApiSessionsJobIdFollowupsOptions) => {
const {baseUrl = "https://api.motion.so/api/motion", fetch: fetchFn = fetch, MotionApiKey} = options ?? {}

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

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

const url = `${baseUrl.replace(/\/+$/, '')}/sessions/${encodeURIComponent(String(args.job_id))}/followups${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(createMotionSessionResponse, await res.json())
};