import { NextRequest, NextResponse } from "next/server";
import { prisma } from "@/lib/prisma";
import { requireAdmin } from "@/lib/session";
import bcrypt from "bcryptjs";

export async function PATCH(
  req: NextRequest,
  { params }: { params: { id: string } }
) {
  const admin = await requireAdmin();
  if (!admin) return NextResponse.json({ error: "Admin requis" }, { status: 403 });

  const body = await req.json().catch(() => ({}));
  const id = params?.id || body.id;
  if (!id) return NextResponse.json({ error: "id requis" }, { status: 400 });
  const { id: _bodyId, ...data } = body;

  const allowed = [
    "name", "email", "isMuayThai", "isYoga", "role", "phone", "avatar", "password"
  ];

  const updateData: any = {};
  for (const key of allowed) {
    if (data[key] !== undefined) updateData[key] = data[key];
  }

  if (updateData.email) updateData.email = updateData.email.toLowerCase();

  if (updateData.password) {
    if (updateData.password.length < 6) {
      return NextResponse.json(
        { error: "Le mot de passe doit contenir au moins 6 caractères" },
        { status: 400 }
      );
    }
    updateData.password = await bcrypt.hash(updateData.password, 10);
  }

  try {
    if (updateData.isMuayThai === true) {
      await prisma.muayThaiProfile.upsert({
        where: { userId: id },
        update: {},
        create: { userId: id },
      });
    }
    if (updateData.isYoga === true) {
      await prisma.yogaProfile.upsert({
        where: { userId: id },
        update: {},
        create: { userId: id },
      });
    }

    const user = await prisma.user.update({
      where: { id },
      data: updateData,
    });
    const { password: _, ...safeUser } = user;
    return NextResponse.json(safeUser);
  } catch (error) {
    console.error(error);
    return NextResponse.json({ error: "Erreur" }, { status: 500 });
  }
}

export async function DELETE(
  req: NextRequest,
  { params }: { params: { id: string } }
) {
  const admin = await requireAdmin();
  if (!admin) return NextResponse.json({ error: "Admin requis" }, { status: 403 });

  const body = await req.json().catch(() => ({}));
  const id = params?.id || body.id;
  if (!id) return NextResponse.json({ error: "id requis" }, { status: 400 });

  try {
    await prisma.user.delete({ where: { id } });
    return NextResponse.json({ ok: true });
  } catch {
    return NextResponse.json({ error: "Erreur" }, { status: 500 });
  }
}