<?php
/**
 * Custom / generic MCP client.
 *
 * @package AcrossAI_MCP_Manager
 * @subpackage Includes\MCPClients
 */

namespace AcrossAI_MCP_Manager\Includes\MCPClients;

defined( 'ABSPATH' ) || exit;

/**
 * Produces a generic `mcpServers`-shaped snippet the user adapts to any
 * MCP-compatible tool the plugin does not natively recognise.
 *
 * Includes an inline comment field (`_comment`) explaining that the
 * user should rename the top-level key to match their tool's expected
 * envelope.
 */
final class CustomClient extends AbstractMCPClient {

	/**
	 * {@inheritDoc}
	 */
	public function get_client_slug(): string {
		return 'custom';
	}

	/**
	 * {@inheritDoc}
	 */
	public function get_client_name(): string {
		return 'Custom Client';
	}

	/**
	 * {@inheritDoc}
	 *
	 * @param string $server_url Already-sanitised server URL.
	 * @param string $auth_token Already-issued Application Password (may be empty).
	 *
	 * @return array<string, mixed>
	 */
	public function get_config_snippet( string $server_url, string $auth_token ): array {
		return array(
			'_comment'   => 'Adapt the top-level key to match your MCP tool (e.g. mcp.servers, tools, etc.).',
			'mcpServers' => array(
				$this->derive_server_key( $server_url ) => array(
					'command' => 'npx',
					'args'    => array( '-y', '@automattic/mcp-wordpress-remote@latest' ),
					'env'     => $this->build_env( $server_url, $auth_token ),
				),
			),
		);
	}

	/**
	 * {@inheritDoc}
	 */
	public function get_icon(): string {
		return '⚙';
	}

	/**
	 * {@inheritDoc}
	 */
	public function get_description(): string {
		return __( 'Custom MCP Client Implementation', 'acrossai-mcp-manager' );
	}

	/**
	 * {@inheritDoc}
	 */
	public function get_config_file(): string {
		return 'depends on your client';
	}

	/**
	 * {@inheritDoc}
	 */
	public function get_top_level_key(): string {
		return 'depends on your client';
	}

	/**
	 * {@inheritDoc}
	 */
	public function get_instructions(): string {
		return __( 'Use the JSON below as a starting point — most MCP clients accept the same command / args / env shape. Consult your client\'s docs for the exact config file path and top-level key.', 'acrossai-mcp-manager' );
	}

	/**
	 * {@inheritDoc}
	 */
	public function get_restart_step_text(): string {
		return __( 'Restart your MCP client (or reload its window / extension) to load the new MCP server. Consult your client\'s docs for the exact reload action.', 'acrossai-mcp-manager' );
	}

	/**
	 * {@inheritDoc}
	 */
	public function get_priority(): int {
		return 80;
	}
}