<?php
/**
 * Claude Code CLI MCP client.
 *
 * @package AcrossAI_MCP_Manager
 * @subpackage Includes\MCPClients
 */

namespace AcrossAI_MCP_Manager\Includes\MCPClients;

defined( 'ABSPATH' ) || exit;

/**
 * Produces a `~/.claude.json`-shaped snippet.
 *
 * Target file: `~/.claude.json`
 * Top-level key: `mcpServers`
 *
 * OAUTH_ENABLED is pinned to "false" — the WordPress MCP server the user
 * targets from Claude Code authenticates via Application Passwords (HTTP
 * Basic), and the `@automattic/mcp-wordpress-remote` client's OAuth path
 * expects a token endpoint we don't expose. Setting it explicitly here
 * keeps the client from falling into its OAuth branch when a future
 * default flip happens upstream.
 */
final class ClaudeCodeClient extends AbstractMCPClient {

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

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

	/**
	 * {@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(
			'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, array( 'OAUTH_ENABLED' => 'false' ) ),
				),
			),
		);
	}

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

	/**
	 * {@inheritDoc}
	 */
	public function get_description(): string {
		return __( 'Anthropic Claude Code CLI', 'acrossai-mcp-manager' );
	}

	/**
	 * {@inheritDoc}
	 */
	public function get_config_file(): string {
		return '~/.claude.json';
	}

	/**
	 * {@inheritDoc}
	 *
	 * A single dotfile in the home directory. Home-relative on every platform: the client resolves `~` itself, but `~`
	 * is unix shorthand a Windows user cannot paste into Explorer, so the
	 * Windows row spells out `%USERPROFILE%` with backslashes (issue #159).
	 * Linux uses the same location as macOS.
	 *
	 * @since 0.3.9
	 * @return array<string, string>
	 */
	public function get_config_files(): array {
		return array(
			'macos'   => '~/.claude.json',
			'windows' => '%USERPROFILE%\\.claude.json',
			'linux'   => '~/.claude.json',
		);
	}

	/**
	 * {@inheritDoc}
	 */
	public function get_top_level_key(): string {
		return 'mcpServers';
	}

	/**
	 * {@inheritDoc}
	 */
	public function get_instructions(): string {
		return __( 'Generate a password → copy the JSON → open the config file path above → paste under the top-level key → restart Claude Code.', 'acrossai-mcp-manager' );
	}

	/**
	 * {@inheritDoc}
	 */
	public function get_priority(): int {
		return 20;
	}
}