import { defineEventHandler, readBody } from "h3";

export default defineEventHandler(async (event) => {
  const { userId } = await readBody(event);
  try {
    const currentSession = await getUserSession(event);
    if (!currentSession?.user) {
      throw new Error("Authentication requise");
    }
    const response = await useGraphqlMutation("userSwitchTo", { userId });
    if (response.errors?.length) {
      throw new Error(response.errors[0]?.message);
    }
    if (!response.data.userSwitchTo) {
      throw new Error("Le changement d'utilisateur a échoué");
    }
    const { authToken, refreshToken, user } = response.data.userSwitchTo;
    await setUserSession(event, {
      user,
      secure: { authToken, refreshToken },
      loggedInAt: new Date().toISOString(),
      switchedBy: currentSession.user.id,
    });
    return { success: true };
  }
  catch (error) {
    const message = error instanceof Error ? error.message : "Le changement d'utilisateur a échoué";
    return { success: false, message };
  }
});