/**
 * Main entry point for the Agent Manager Client
 */

export { ClaudeClient } from './claude-client.js';
export { Config } from './config.js';
export { McpConfigManager } from './mcpConfigManager.js';
export { ToolDiscovery } from './toolDiscovery.js';
export type {
  IssueData,
  ClaudeClientConfig,
  IssueHandlerResult,
  MCPServerConfig
} from './types.js';

// CLI entry point
if (import.meta.url === `file://${process.argv[1]}`) {
  const { ClaudeClient } = await import('./claude-client.js');
  const { Config } = await import('./config.js');
  const { ToolDiscovery } = await import('./toolDiscovery.js');
  const { setupEnvironment, ensureRepository, detectAgentManagerPath } = await import('./repository-manager.js');
  const { fetchRepositorySshUrl, getExistingGitRemoteUrl } = await import('./gogs-helper.js');

  // Setup environment variables (HOME, PATH, XDG directories)
  console.log('Setting up environment...');
  setupEnvironment();

  // Load configuration early: global env vars are needed for Gogs API access and MCP config
  console.log('Loading configuration...');
  Config.loadGlobal();  // Load global .env from ~/.config/agent-manager/.env

  // Parse command line arguments
  const args = process.argv.slice(2);

  if (args.length < 7) {
    console.error('Usage: node index.js <owner> <repo> <pusher> <issue_number> <issue_title> <issue_body> <issue_action> [comment_body] [assignee] [labels]');
    process.exit(1);
  }

  const [owner, repo, pusher, issueNumber, issueTitle, issueBody, issueAction, commentBody, assignee, labels] = args;

  // Exit if issue action is 'closed' (but allow 'reopened')
  if (issueAction === 'closed') {
    console.log("Issue action is 'closed', skipping automation");
    process.exit(0);
  }

  // Validate assignee
  if (assignee && assignee !== 'claude') {
    console.log(`Issue not assigned to claude (assignee: ${assignee}), skipping`);
    process.exit(0);
  }

  // Skip if pusher is claude for issue_comment events (avoid comment loops)
  // commentBody is only populated for issue_comment events, not issues events
  if (pusher === 'claude' && commentBody) {
    console.log('Pusher is claude for issue_comment event, skipping automation to avoid loops');
    process.exit(0);
  }

  // Detect Agent Manager path
  const agentManagerPath = detectAgentManagerPath();
  console.log(`Agent Manager Path: ${agentManagerPath}`);

  // Determine repo path
  const home = process.env.HOME || '/root';
  const repoPath = `${home}/${repo}`;

  // Fetch SSH URL from Gogs API or use existing git remote
  let sshUrl: string;
  try {
    // First, try to get from existing repository
    const existingUrl = getExistingGitRemoteUrl(repoPath);
    if (existingUrl) {
      console.log(`Using existing git remote URL: ${existingUrl}`);
      sshUrl = existingUrl;
    } else {
      console.log('Fetching repository SSH URL from Gogs API...');
      sshUrl = await fetchRepositorySshUrl(owner, repo);
      console.log(`Fetched SSH URL: ${sshUrl}`);
    }
  } catch (error) {
    console.error('Failed to fetch SSH URL from Gogs API:', error);
    console.log('Falling back to existing repository or default URL format');
    const existingUrl = getExistingGitRemoteUrl(repoPath);
    if (existingUrl) {
      sshUrl = existingUrl;
    } else {
      // Fallback to default format
      sshUrl = `ssh://git@git.smartbotics.ai:10022/${owner}/${repo}.git`;
      console.log(`Using fallback SSH URL: ${sshUrl}`);
    }
  }

  // Ensure repository exists and is up to date
  console.log('Ensuring repository exists and is up to date...');
  ensureRepository(repoPath, sshUrl);

  // Change to repository directory
  process.chdir(repoPath);
  console.log(`Working directory: ${process.cwd()}`);

  // Load repository-specific .env (overrides global values)
  Config.load(repoPath);

  // Generate MCP configuration for this repository
  const mcpConfig = Config.generateMcpConfig(repoPath, owner, repo);

  // Discover available tools dynamically
  console.log('Discovering available tools from MCP servers...');
  const allowedTools = await ToolDiscovery.discoverTools(mcpConfig);

  console.log('\n=== ALLOWED TOOLS ===');
  console.log(`Total tools: ${allowedTools.length}`);
  console.log('Tools list:', JSON.stringify(allowedTools, null, 2));
  console.log('=====================\n');

  // Configure Claude client
  const client = new ClaudeClient({
    workingDirectory: repoPath,
    mcpConfigPath: `${repoPath}/.mcp-gogs.json`,
    allowedTools,
    dangerouslySkipPermissions: true
  });

  // Handle the issue
  const result = await client.handleIssue({
    owner,
    repo,
    number: parseInt(issueNumber, 10),
    title: issueTitle,
    body: issueBody,
    action: issueAction,
    pusher,
    assignee,
    labels,
    commentBody
  });

  // Output result
  console.log('---');
  console.log('Claude Code execution completed');

  if (result.success) {
    console.log('Session ID:', result.sessionId);
    console.log('Cost:', result.cost);
    console.log('Duration:', result.duration);
    process.exit(0);
  } else {
    console.error('Error:', result.error);
    process.exit(1);
  }
}