import { create } from 'zustand'
import type { UserRole } from '../data/AdminUserRepository'
import { supabase } from '../data/supabaseClient'

export type { UserRole }

interface AuthStoreState {
  userId: string | null
  username: string | null
  role: UserRole | null
  /** Lets a specific Admin post/retire site-wide announcements without the
   *  whole Admin role gaining that ability — a Super Admin can always post
   *  regardless of this flag (see can_manage_announcements() in the DB). */
  canPostAnnouncements: boolean
  isLoaded: boolean

  /** One-time fetch of your own profile — nothing else in the app changes
   *  your own username while you're signed in, and your own role changing
   *  (a Super-Admin-only action on someone else's account, see
   *  organized-ideas.md §6) isn't something you'd do to yourself, so
   *  there's no need to keep this live. */
  load: () => Promise<void>
}

export const useAuthStore = create<AuthStoreState>((set) => ({
  userId: null,
  username: null,
  role: null,
  canPostAnnouncements: false,
  isLoaded: false,

  load: async () => {
    const {
      data: { user },
    } = await supabase.auth.getUser()
    if (!user) {
      set({ isLoaded: true })
      return
    }
    const { data } = await supabase
      .from('profiles')
      .select('username, role, can_post_announcements')
      .eq('id', user.id)
      .single()
    set({
      userId: user.id,
      username: data?.username ?? null,
      role: (data?.role as UserRole | undefined) ?? null,
      canPostAnnouncements: data?.can_post_announcements ?? false,
      isLoaded: true,
    })
  },
}))