import {z} from 'zod'

export type AiDisclosureItem = 'AI_MODIFIED' | 'SYNTHETIC_PERFORMER';

export type AiDisclosures = {values: Array<AiDisclosureItem>};

export type ContentType = 'image/jpeg' | 'image/png';

export type PinMediaSourceImagesBase64Item = {content_type: ContentType, data: string, description?: string | undefined, link?: string | undefined, title?: string | undefined};

export type PinMediaSourceImagesURLItem = {description?: string | undefined, link?: string | undefined, title?: string | undefined, url: string};

export type PinMediaSource = {content_type: ContentType, data: string, is_standard?: boolean | undefined, source_type: 'image_base64'} | {is_standard?: boolean | undefined, source_type: 'image_url', url: string} | {cover_image_content_type?: ContentType | undefined, cover_image_data?: string | undefined, cover_image_key_frame_time?: number | undefined, cover_image_url?: string | undefined, is_standard?: boolean | undefined, media_id: string, source_type: 'video_id'} | {index?: number | undefined, items: Array<PinMediaSourceImagesBase64Item>, source_type: 'multiple_image_base64'} | {index?: number | undefined, items: Array<PinMediaSourceImagesURLItem>, source_type: 'multiple_image_urls'} | {is_affiliate_link?: boolean | undefined, source_type: 'pin_url'};

export type PinCreate = {ai_disclosures?: AiDisclosures | undefined, alt_text?: (string | null) | undefined, board_id?: string | undefined, board_section_id?: (string | null) | undefined, description?: (string | null) | undefined, dominant_color?: (string | null) | undefined, link?: (string | null) | undefined, media_source?: PinMediaSource | undefined, parent_pin_id?: (string | null) | undefined, sponsor_id?: (string | null) | undefined, title?: (string | null) | undefined};

export type CreateApiPinsArgs = {ad_account_id?: string | undefined, body: PinCreate};

export type CreateApiPinsOptions = {baseUrl?: string | undefined, pinterestOauth2?: string | undefined, fetch?: typeof fetch | undefined};

export const aiDisclosureItem = z.enum(["AI_MODIFIED", "SYNTHETIC_PERFORMER"]);

export const aiDisclosures = z.object({values: z.array(aiDisclosureItem)});

export const boardOwner = z.object({username: z.string().optional()});

export const creativeType = z.enum(["REGULAR", "VIDEO", "SHOPPING", "CAROUSEL", "MAX_VIDEO", "SHOP_THE_PIN", "COLLECTION", "IDEA", "SHOWCASE", "QUIZ", "COLLAGE", "MAX_WIDTH_REGULAR_COLLECTION", "MAX_WIDTH_VIDEO_COLLECTION", "APP"]);

export const imageDetails = z.object({height: z.number().int().nullable(), url: z.string(), width: z.number().int().nullable()});

export const imageSize = z.object({"1200x": imageDetails.optional(), "150x150": imageDetails.optional(), "400x300": imageDetails.optional(), "600x": imageDetails.optional()});

export const imageMetadata = z.object({description: z.string().nullable().optional(), images: imageSize.optional(), item_type: z.literal("image"), link: z.string().nullable().optional(), title: z.string().nullable().optional()});

export const videoMetadataWithItemType = z.object({cover_image_url: z.string().optional(), duration: z.number().nullable().optional(), height: z.number().int().nullable().optional(), item_type: z.literal("video"), video_url: z.string().nullable().optional(), video_url_hls: z.string().nullable().optional(), width: z.number().int().nullable().optional()});

export const pinMediaMetadata = z.discriminatedUnion("item_type", [z.object({description: z.string().nullable().optional(), images: imageSize.optional(), item_type: z.literal("image"), link: z.string().nullable().optional(), title: z.string().nullable().optional()}), z.object({cover_image_url: z.string().optional(), duration: z.number().nullable().optional(), height: z.number().int().nullable().optional(), item_type: z.literal("video"), video_url: z.string().nullable().optional(), video_url_hls: z.string().nullable().optional(), width: z.number().int().nullable().optional()})]);

export const pinMedia = z.discriminatedUnion("media_type", [z.object({images: imageSize.optional(), media_type: z.literal("image")}), z.object({cover_image_url: z.string().optional(), duration: z.number().nullable().optional(), height: z.number().int().nullable().optional(), images: imageSize.optional(), media_type: z.literal("video"), video_url: z.string().nullable().optional(), video_url_hls: z.string().nullable().optional(), width: z.number().int().nullable().optional()}), z.object({items: z.array(imageMetadata).optional(), media_type: z.literal("multiple_images")}), z.object({items: z.array(videoMetadataWithItemType).optional(), media_type: z.literal("multiple_videos")}), z.object({items: z.array(pinMediaMetadata).optional(), media_type: z.literal("multiple_mixed")})]);

export const pin = z.object({ai_disclosures: aiDisclosures.optional(), board_id: z.string().optional(), board_owner: boardOwner.optional(), board_section_id: z.string().nullable().optional(), created_at: z.string().optional(), creative_type: creativeType.nullable().optional(), dominant_color: z.string().nullable().optional(), has_been_promoted: z.boolean().optional(), id: z.string(), is_owner: z.boolean().optional(), is_product: z.boolean().optional(), is_standard: z.boolean().optional(), media: pinMedia.optional(), parent_pin_id: z.string().nullable().optional(), pin_metrics: z.object({}).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 Pin
 * 
 * POST /pins
 * 
 * Also accepts auth: client_credentials
 */
export const createApiPins = async (args: CreateApiPinsArgs, options?: CreateApiPinsOptions) => {
const {baseUrl = "https://api.pinterest.com/v5", fetch: fetchFn = fetch, pinterestOauth2} = options ?? {}

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

if (args.ad_account_id != null) query.append("ad_account_id", String(args.ad_account_id))
if (pinterestOauth2 !== undefined) headers.set('authorization', `Bearer ${pinterestOauth2}`)

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