import { NextRequest, NextResponse } from "next/server";
import { createClient } from "@/lib/supabase/server";

/**
 * GET /api/me
 * Returns the current user's profile from DB.
 * Used by client components (analyze page, etc.) to determine plan, role, usage.
 * Admin gets FULL access to everything — no limits, no restrictions.
 */
export async function GET(req: NextRequest) {
  try {
    const supabase = await createClient();
    const { data: { user } } = await supabase.auth.getUser();

    if (!user) {
      return NextResponse.json({
        authenticated: false,
        plan: "free",
        role: "user",
        isAdmin: false,
        analyses_this_month: 0,
        scan_limit: 10,
        can_upload: false,
        can_compare: false,
        can_export_pdf: false,
        can_chat: false,
        can_redline_llm: false,
      });
    }

    const { data: profile } = await supabase
      .from("profiles")
      .select("plan, role, is_banned, analyses_this_month, full_name, email, team_id, created_at")
      .eq("id", user.id)
      .single();

    const plan = profile?.plan || "free";
    const role = profile?.role || "user";
    const isAdmin = role === "admin";

    // Admin gets EVERYTHING — no limits, no restrictions, period.
    const hasFullAccess = isAdmin || plan !== "free";

    return NextResponse.json({
      authenticated: true,
      id: user.id,
      email: profile?.email || user.email,
      full_name: profile?.full_name || "",
      plan,
      role,
      isAdmin,
      is_banned: profile?.is_banned || false,
      analyses_this_month: profile?.analyses_this_month || 0,
      team_id: profile?.team_id || null,
      created_at: profile?.created_at || null,
      // Use 999999 instead of Infinity (not valid JSON)
      scan_limit: isAdmin ? 999999 : plan === "free" ? 10 : 999999,
      can_upload: hasFullAccess,
      can_compare: hasFullAccess,
      can_export_pdf: hasFullAccess,
      can_chat: hasFullAccess,
      can_redline_llm: hasFullAccess,
      can_api_keys: hasFullAccess,
      can_team: isAdmin || plan === "team",
    });
  } catch (error) {
    return NextResponse.json({
      authenticated: false,
      plan: "free",
      role: "user",
      isAdmin: false,
      analyses_this_month: 0,
      scan_limit: 10,
      can_upload: false,
      can_compare: false,
      can_export_pdf: false,
      can_chat: false,
      can_redline_llm: false,
    });
  }
}