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/*
 * Copyright 2016-2020 The jetcd authors
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package io.etcd.jetcd.examples.ctl;

import com.beust.jcommander.JCommander;
import com.beust.jcommander.Parameter;
import io.etcd.jetcd.Client;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;

public class Main {
    private static final Logger LOGGER = LoggerFactory.getLogger(Main.class);

    public static void main(String[] args) {
        Args global = new Args();
        CommandGet getCmd = new CommandGet();
        CommandPut putCmd = new CommandPut();
        CommandWatch watchCmd = new CommandWatch();

        JCommander jc = JCommander.newBuilder().addObject(global).addCommand("get", getCmd).addCommand("put", putCmd)
            .addCommand("watch", watchCmd).build();

        jc.parse(args);

        String cmd = jc.getParsedCommand();
        if (cmd == null || global.help) {
            jc.usage();
            return;
        }

        try (Client client = Client.builder().endpoints(global.endpoints.split(",")).build()) {
            switch (cmd) {
                case "get":
                    getCmd.accept(client);
                    break;
                case "put":
                    putCmd.accept(client);
                    break;
                case "watch":
                    watchCmd.accept(client);
                    break;
            }
        } catch (Exception e) {
            LOGGER.error(cmd + " Error {}", e);
            System.exit(1);
        }
    }

    public static class Args {
        @Parameter(names = { "--endpoints" }, description = "gRPC endpoints ")
        private String endpoints = "http://127.0.0.1:2379";

        @Parameter(names = { "-h", "--help" }, help = true)
        private boolean help = false;
    }
}