import { NextResponse } from "next/server";
import { sql } from "@/db";
import { requireAdmin } from "@/lib/admin-auth";
import {
  getRazorpayConfig,
  PREMIUM_PLAN_NAME,
  PREMIUM_PRICE_PAISE,
  PREMIUM_STORAGE_BYTES,
  PREMIUM_MEMBER_LIMIT,
  PREMIUM_CHILD_LIMIT,
} from "@/lib/billing/config";

/**
 * POST /api/admin/seed-plan — idempotent upsert of the Tia Premium plan row.
 *
 * Admin-only. Reads RAZORPAY_PLAN_ID + the premium grant constants and writes
 * one subscription_plans row. Re-runnable: ON CONFLICT updates the grant values
 * so you can tweak storage/member limits and re-seed without a DB shell.
 *
 * GET shows the current plan row(s) for verification.
 */
export async function GET(request: Request) {
  const auth = await requireAdmin(request);
  if (!auth.success) return NextResponse.json({ error: auth.error }, { status: auth.status });

  const rows = await sql`SELECT * FROM subscription_plans ORDER BY created_at DESC`;
  return NextResponse.json({ plans: rows });
}

export async function POST(request: Request) {
  const auth = await requireAdmin(request);
  if (!auth.success) return NextResponse.json({ error: auth.error }, { status: auth.status });

  let cfg;
  try {
    cfg = getRazorpayConfig();
  } catch (e) {
    return NextResponse.json({ error: String(e) }, { status: 500 });
  }

  const rows = await sql`
    INSERT INTO subscription_plans
      (razorpay_plan_id, name, price_paise, storage_bytes, member_limit, child_limit, is_active)
    VALUES (
      ${cfg.planId}, ${PREMIUM_PLAN_NAME}, ${PREMIUM_PRICE_PAISE},
      ${PREMIUM_STORAGE_BYTES}, ${PREMIUM_MEMBER_LIMIT}, ${PREMIUM_CHILD_LIMIT}, true
    )
    ON CONFLICT (razorpay_plan_id) DO UPDATE SET
      name         = EXCLUDED.name,
      price_paise  = EXCLUDED.price_paise,
      storage_bytes = EXCLUDED.storage_bytes,
      member_limit = EXCLUDED.member_limit,
      child_limit  = EXCLUDED.child_limit,
      is_active    = true
    RETURNING *
  `;

  return NextResponse.json({ success: true, plan: rows[0] });
}