import { z } from "zod"

export * from "./rbac"

export const postStatusSchema = z.enum(["draft", "published"])

const postMutableFieldsSchema = z.object({
  title: z.string().min(3).max(180),
  slug: z.string().min(3).max(180),
  excerpt: z.string().max(320).optional(),
  body: z.string().min(1),
  status: postStatusSchema,
})

export const postSchema = z.object({
  id: z.string().uuid(),
  ...postMutableFieldsSchema.shape,
  createdAt: z.date(),
  updatedAt: z.date(),
})

export const createPostInputSchema = postMutableFieldsSchema
export const updatePostInputSchema = postMutableFieldsSchema
  .partial()
  .refine((value) => Object.keys(value).length > 0, {
    message: "At least one field is required for an update.",
  })

// Backward-compatible alias while migrating callers to create/update-specific schemas.
export const upsertPostSchema = createPostInputSchema

export type Post = z.infer<typeof postSchema>
export type CreatePostInput = z.infer<typeof createPostInputSchema>
export type UpdatePostInput = z.infer<typeof updatePostInputSchema>
export type UpsertPostInput = z.infer<typeof upsertPostSchema>