"use server";

import { prisma } from "@/lib/prisma";
import { revalidatePath } from "next/cache";

function escapeHtml(value: string): string {
  return value
    .replace(/&/g, "&")
    .replace(/</g, "&lt;")
    .replace(/>/g, "&gt;")
    .replace(/"/g, "&quot;")
    .replace(/'/g, "&#39;");
}

export async function reactivateUserAccount(userId: string, reason: string) {
  try {
    if (!userId || typeof reason !== "string" || reason.trim().length === 0) {
      return { success: false, error: "Paramètres invalides" };
    }

    const sanitizedReason = reason.trim().slice(0, 1000);

    const user = await prisma.user.findUnique({
      where: { id: userId },
      select: { id: true, name: true, email: true, deletedAt: true }
    });

    if (!user) {
      return { success: false, error: "Utilisateur non trouvé" };
    }

    if (!user.deletedAt) {
      return { success: false, error: "Ce compte est déjà actif" };
    }

    await prisma.user.update({
      where: { id: userId },
      data: {
        deletedAt: null,
        deletionScheduledAt: null,
        reactivationReason: sanitizedReason
      }
    });

    // Optionnel : Envoyer un mail de confirmation
    const settings = await prisma.siteSetting.findUnique({ where: { id: "singleton" } });
    if (settings?.reactivateAccountTemplate) {
      const { sendEmail } = await import("@/lib/mail");
      const html = settings.reactivateAccountTemplate
        .replace(/{name}/g, escapeHtml(user.name || ""))
        .replace(/{siteName}/g, escapeHtml(settings.siteName || "Afrohub"))
        .replace(/{reason}/g, escapeHtml(sanitizedReason));

      await sendEmail({
        to: user.email,
        subject: settings.reactivateAccountSubject,
        html
      });
    }

    revalidatePath("/");
    return { success: true };
  } catch (error) {
    console.error("Reactivation Error:", error);
    return { success: false, error: "Une erreur est survenue lors de la réactivation" };
  }
}