oEmbed format zod schema

oembed-zod.ts

const oembedSchema = z.discriminatedUnion('type', [
    z.object({
      type: z.literal('photo'),
      url: z.string(),
      width: z.number(),
      height: z.number(),
    }),
    z.object({
      type: z.literal('video'),
      html: z.string(),
      width: z.number(),
      height: z.number(),
    }),
    z.object({
      type: z.literal('link'),
    }),
    z.object({
      type: z.literal('rich'),
      html: z.string(),
      width: z.number(),
      height: z.number(),
    }),
  ])
  .and(
    z.object({
      version: z.string(),
      title: z.string().optional(),
      author_name: z.string().optional(),
      author_url: z.string().optional(),
      provider_name: z.string().optional(),
      provider_url: z.string().optional(),
      cache_age: z.number().optional(),
      thumbnail_url: z.string().optional(),
      thumbnail_width: z.number().optional(),
      thumbnail_height: z.number().optional(),
    }),
  );