import { getServerSession } from "next-auth";
import { authOptions } from "@/app/api/auth/[...nextauth]/route";
import { NextResponse } from "next/server";

//TODO: Ajouter la suppression automatique du compte Nextcloud
export async function DELETE(
  req: Request,
  { params }: { params: { userId: string } }
) {
  const session = await getServerSession(authOptions);

  if (!session) {
    return NextResponse.json({ error: "Non autorisé" }, { status: 401 });
  }

  try {
    // First get an admin token using client credentials
    const tokenResponse = await fetch(
      `${process.env.KEYCLOAK_BASE_URL}/realms/${process.env.KEYCLOAK_REALM}/protocol/openid-connect/token`,
      {
        method: 'POST',
        headers: {
          'Content-Type': 'application/x-www-form-urlencoded',
        },
        body: new URLSearchParams({
          grant_type: 'client_credentials',
          client_id: process.env.KEYCLOAK_CLIENT_ID!,
          client_secret: process.env.KEYCLOAK_CLIENT_SECRET!,
        }),
      }
    );

    const tokenData = await tokenResponse.json();
    
    if (!tokenResponse.ok) {
      console.error("Failed to get admin token:", tokenData);
      return NextResponse.json(
        { error: "Erreur d'authentification" },
        { status: 401 }
      );
    }

    // Delete user using admin token
    const response = await fetch(
      `${process.env.KEYCLOAK_BASE_URL}/admin/realms/${process.env.KEYCLOAK_REALM}/users/${params.userId}`,
      {
        method: "DELETE",
        headers: {
          Authorization: `Bearer ${tokenData.access_token}`,
        },
      }
    );

    console.log("Delete response:", {
      status: response.status,
      ok: response.ok
    });

    if (!response.ok) {
      const errorText = await response.text();
      console.error("Delete error:", errorText);
      return NextResponse.json(
        { error: "Erreur lors de la suppression", details: errorText },
        { status: response.status }
      );
    }

    return NextResponse.json({ success: true });
  } catch (error) {
    console.error("Error deleting user:", error);
    return NextResponse.json(
      { error: "Erreur serveur", details: error },
      { status: 500 }
    );
  }
}

export async function PUT(
  req: Request,
  { params }: { params: { userId: string } }
) {
  const session = await getServerSession(authOptions);

  if (!session) {
    return NextResponse.json({ error: "Non autorisé" }, { status: 401 });
  }

  try {
    const body = await req.json();

    // Get client credentials token
    const tokenResponse = await fetch(
      `${process.env.KEYCLOAK_BASE_URL}/realms/${process.env.KEYCLOAK_REALM}/protocol/openid-connect/token`,
      {
        method: 'POST',
        headers: {
          'Content-Type': 'application/x-www-form-urlencoded',
        },
        body: new URLSearchParams({
          grant_type: 'client_credentials',
          client_id: process.env.KEYCLOAK_CLIENT_ID!,
          client_secret: process.env.KEYCLOAK_CLIENT_SECRET!,
        }),
      }
    );

    const tokenData = await tokenResponse.json();

    if (!tokenResponse.ok) {
      console.error("Failed to get token:", tokenData);
      return NextResponse.json({ error: "Failed to get token" }, { status: 500 });
    }

    // Update user
    const updateResponse = await fetch(
      `${process.env.KEYCLOAK_BASE_URL}/admin/realms/${process.env.KEYCLOAK_REALM}/users/${params.userId}`,
      {
        method: 'PUT',
        headers: {
          'Authorization': `Bearer ${tokenData.access_token}`,
          'Content-Type': 'application/json',
        },
        body: JSON.stringify(body),
      }
    );

    if (!updateResponse.ok) {
      const errorData = await updateResponse.json();
      console.error("Failed to update user:", errorData);
      return NextResponse.json({ error: "Failed to update user" }, { status: updateResponse.status });
    }

    return NextResponse.json({ success: true });
  } catch (error) {
    console.error("Error in PUT user:", error);
    return NextResponse.json({ error: "Internal server error" }, { status: 500 });
  }
}