import { ClaudeCodeExecutor, ExecuteResult } from './claude-code-executor.js';

import type { McpServerConfig } from './config.js';

const SYSTEM_PROMPT = `You are a helpful assistant in a Slack workspace. Respond concisely. Format responses for Slack (use mrkdwn, not markdown).

Your text response will be posted as a reply automatically. Do NOT use messaging tools (like conversations_add_message) to send your reply — just respond with text. Use tools only for gathering information or performing actions.

IMPORTANT: For EVERY message you receive, you MUST first call conversations_replies with the channel and thread_ts from <slack_context> to fetch the full thread history. This is required because you cannot see previous messages in the thread without fetching them.

The <slack_message> tag contains the CURRENT message you must respond to - answer ONLY what is asked in that specific message. Thread history is for background context only.`;

export interface AgentConfig {

model?: string;

workspaceDir?: string;

mcpServers?: Record<string, McpServerConfig>;

}

export interface ChatResult {

response: string;

sessionId?: string;

}

export class Agent {

private executor: ClaudeCodeExecutor;

constructor(config: AgentConfig) {

// Auto-allow all tools from configured MCP servers

const allowedTools = config.mcpServers

? Object.keys(config.mcpServers).map(name => `mcp__${name}__*`)

: [];

this.executor = new ClaudeCodeExecutor({

workspaceDir: config.workspaceDir,

model: config.model,

systemPrompt: SYSTEM_PROMPT,

mcpServers: config.mcpServers,

allowedTools,

});

}

async chat(userMessage: string, sessionId?: string): Promise<ChatResult> {

const result = await this.executor.execute(userMessage, sessionId);

return { response: result.response, sessionId: result.sessionId };

}

}