/*
 * Copyright 2025 the original author or 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
 *
 *      https://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 com.hbasesoft.framework.ai.agent.tool.shell.bash;

/**
 * Shell executor factory class responsible for creating shell executors for corresponding operating systems
 */
public class ShellExecutorFactory {

    /**
     * Create shell executor for current operating system
     * 
     * @return ShellCommandExecutor implementation
     */
    public static ShellCommandExecutor createExecutor() {
        String os = System.getProperty("os.name").toLowerCase();
        if (os.contains("win")) {
            return new WindowsShellExecutor();
        }
        else if (os.contains("mac")) {
            return new MacShellExecutor();
        }
        else {
            return new LinuxShellExecutor();
        }
    }

    /**
     * Create shell executor for specified operating system type
     * 
     * @param osType Operating system type: windows/mac/linux
     * @return ShellCommandExecutor implementation
     */
    public static ShellCommandExecutor createExecutor(String osType) {
        switch (osType.toLowerCase()) {
            case "windows":
                return new WindowsShellExecutor();
            case "mac":
                return new MacShellExecutor();
            case "linux":
                return new LinuxShellExecutor();
            default:
                throw new IllegalArgumentException("Unsupported OS type: " + osType);
        }
    }

}
