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/*
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 *
 *    Copyright (c) [2019-2021] Payara Foundation and/or its affiliates. All rights reserved.
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 *    General Public License Version 2 only ("GPL") or the Common Development
 *    and Distribution License("CDDL") (collectively, the "License").  You
 *    may not use this file except in compliance with the License.  You can
 *    obtain a copy of the License at
 *    https://github.com/payara/Payara/blob/master/LICENSE.txt
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package fish.payara.ejb.http.client;

import javax.naming.NamingException;
import jakarta.ws.rs.client.Entity;
import jakarta.ws.rs.client.WebTarget;
import java.util.HashMap;
import java.util.Map;

import static jakarta.ws.rs.core.MediaType.APPLICATION_JSON;

class LookupV0 extends Lookup {

    private final WebTarget invokerRoot;
    private final WebTarget lookup;

    LookupV0(Map environment, WebTarget invokerRoot, WebTarget v0lookup) {
        super(environment);
        this.invokerRoot = invokerRoot;
        this.lookup = v0lookup;
    }

    @Override
    public Object lookup(String jndiName) throws NamingException {
        // For the lookup do a call to the remote server first to obtain
        // the remote business interface class name given a JNDI lookup name.
        // The JNDI lookup name normally does not give us this interface name.
        // This also allows us to check the JNDI name indeed resolves before
        // we create a proxy and return it here.

        Map payload = new HashMap<>();
        payload.put("lookup", jndiName);
        String className =
                lookup
                        .request()
                        .post(Entity.entity(payload, APPLICATION_JSON))
                        .readEntity(String.class);

        // After we have obtained the class name of the remote interface, generate
        // a proxy based on it.

        try {
            return EjbHttpProxyFactory.newProxy(
                    Class.forName(className),
                    invokerRoot
                            .path("ejb")
                            .path("invoke"),
                    jndiName,
                    new HashMap<>(environment)
            );
        } catch (ClassNotFoundException e) {
            throw wrap("Local class does not exist for JNDI name "+jndiName, e);
        }
    }
}