import {z} from 'zod'

export type PILImage = {format?: string | undefined, format_description?: string | undefined};

export type SpritePose = {animation_prompt?: string | undefined, margin_ratio?: number | undefined, margin_ratio_mode?: string | undefined, name?: string | undefined, prompt?: string | undefined};

export type Sprite3DRender = {style_id?: string | undefined, style_version?: number | undefined, style_params?: Record<string, never> | undefined, params?: Record<string, never> | undefined, perspective?: string | undefined, direction?: string | undefined, animation_name?: string | undefined, motion?: Record<string, never> | undefined, mirror?: boolean | undefined, fps?: number | undefined, keep_horizontal_travel?: boolean | undefined, keep_vertical_travel?: boolean | undefined, pixel_block?: number | undefined, generated_model?: Record<string, never> | undefined};

export type GameImage = {tags?: Array<string> | undefined, id?: string | undefined, image_id?: string | undefined, url?: string | undefined, type?: string | undefined, final_score?: number | undefined, nsfw_prob?: number | undefined, similarity?: number | undefined, width?: number | undefined, height?: number | undefined, game_id?: string | undefined, hosted_filename?: string | undefined, icon?: boolean | undefined, targetSize?: number | undefined, seed?: number | undefined, embedded?: boolean | undefined, analysed?: boolean | undefined, image?: string | undefined, image_type?: string | undefined, prompt?: string | undefined, motion_prompt?: string | undefined, request_id?: string | undefined, hints?: Array<string> | undefined, selected_genres?: Array<string> | undefined, selected_colors?: Array<string> | undefined, selected_style?: string | undefined, selected_perspective?: string | undefined, is_safe?: boolean | undefined, platform?: string | undefined, loading?: boolean | undefined, original_hints?: Array<string> | undefined, genres?: Array<string> | undefined, edit_mask?: string | undefined, edit_mode?: string | undefined, camera_rotation?: number | undefined, camera_elevation?: number | undefined, edit_mask_pil_image?: PILImage | undefined, pil_image?: PILImage | undefined, nsfw?: number | undefined, pose?: SpritePose | undefined, render_3d?: Sprite3DRender | undefined, pixel_grid?: (Array<number> | null) | undefined, pixel_size?: number | undefined, model?: string | undefined, normals?: string | undefined};

export type QueueGenerateTilePayload = {grid: 'square' | 'square-side' | 'diamond' | 'diamond-true' | 'hex' | 'hex-flat' | 'hex-tilted' | 'hex-flat-tilted', neighbors?: ({up?: GameImage | undefined, 'up-right'?: GameImage | undefined, right?: GameImage | undefined, 'down-right'?: GameImage | undefined, down?: GameImage | undefined, 'down-left'?: GameImage | undefined, left?: GameImage | undefined, 'up-left'?: GameImage | undefined}) | undefined, prompt?: string | undefined, edit_image?: GameImage | undefined, reference_image?: GameImage | undefined, repeat?: ('none' | 'horizontal' | 'vertical' | 'all') | undefined, art_style?: string | undefined, n?: number | undefined, request_id?: string | undefined};

export type CreateApiJobsGenerateTileArgs = {body: QueueGenerateTilePayload};

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

export const jobAcceptedResponse = z.object({jobId: z.string(), status: z.enum(["queued", "running", "succeeded", "failed", "canceled"]), queue_position: z.number().int().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
};

/**
 * Enqueue one tile of a tilemap that fits the tiles placed around it (ML /generate/tile). Dev only for now. One GENERATE_IMAGE charge per candidate (Roles: user)
 * 
 * POST /jobs/generate-tile
 */
export const createApiJobsGenerateTile = async (args: CreateApiJobsGenerateTileArgs, options: CreateApiJobsGenerateTileOptions) => {
const {baseUrl, fetch: fetchFn = fetch, Bearer} = options ?? {}

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

if (Bearer !== undefined) headers.set("Authorization", Bearer)

const url = `${baseUrl.replace(/\/+$/, '')}/jobs/generate-tile${query.size > 0 ? `?${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(jobAcceptedResponse, await res.json())
};