import { AiChat } from "./ai-chat"
import { redirect } from "next/navigation"
import { and, eq, gte, sql } from "drizzle-orm"
import { db } from "@/lib/db"
import { profiles, usage_events } from "@/lib/db/schema"
import { getSessionUser } from "@/lib/session"
import { PLAN_LIMITS } from "@/lib/stripe/plans"
import type { Plan } from "@/types"

export const metadata = { title: "AI Assistant — Property Management Network" }

export default async function AiPage() {
  const user = await getSessionUser()
  if (!user) redirect("/login")

  const profile = await db.query.profiles.findFirst({
    where: eq(profiles.id, user.id),
    columns: { plan: true },
  })

  const plan = (profile?.plan ?? "starter") as Plan
  const limit = PLAN_LIMITS[plan].maxAiCalls

  // Count usage this month
  const monthStart = new Date()
  monthStart.setDate(1)
  monthStart.setHours(0, 0, 0, 0)
  const [{ count }] = await db
    .select({ count: sql<number>`count(*)::int` })
    .from(usage_events)
    .where(
      and(
        eq(usage_events.user_id, user.id),
        gte(usage_events.created_at, monthStart.toISOString())
      )
    )

  const used = count ?? 0

  return <AiChat plan={plan} limit={limit} used={used} />
}
