// module-agent-registry.js — VFS-backed agent directory
// Command: agent-list, agent-register, agent-unregister, agent-status
class AgentRegistryModule {
    constructor() {
        this.commands = {};
        this.terminal = null;
    }
    registerCommands() {
        this.commands['agent-list'] = () => this.listAgents();
        this.commands['agent-status'] = (args) => this.showAgentStatus(args[0]);
        this.commands['agent-register'] = (args) => this.registerAgent(args);
        this.commands['agent-unregister'] = (args) => this.unregisterAgent(args[0]);
    }
    init(terminal) {
        this.terminal = terminal;
        if (!this.terminal.fs.readFile('/agents/')) {
            this.terminal.fs.mkdir('agents');
        }
        this.terminal.print('📋 Agent Registry loaded', 'info');
    }
    listAgents() {
        const agents = this.terminal.fs.ls('/agents/');
        if (!agents || agents.length === 0) {
            return this.terminal.print('No agents registered', 'info');
        }
        this.terminal.print(`📋 Registered Agents (${agents.length}):`, 'header');
        agents.forEach(a => {
            if (a.type === 'dir' && a.name !== 'configured') {
                const data = this.terminal.fs.readFile(`/agents/${a.name}/status.json`);
                const s = data ? JSON.parse(data) : { status: 'unknown', capabilities: [] };
                this.terminal.print(`  ${a.name} — ${s.status} (${(s.capabilities || []).length} capabilities)`, 'info');
            }
        });
    }
    registerAgent(args) {
        const id = args[1] || `agent-${Date.now()}`;
        const capabilities = args.slice(2).length ? args.slice(2) : ['list_files', 'read_file'];
        const agentDir = `agents/${id}`;
        if (!this.terminal.fs.readFile('/' + agentDir + '/')) this.terminal.fs.mkdir(agentDir);
        this.terminal.fs.writeFile(`${agentDir}/status.json`, JSON.stringify({
            id,
            status: 'idle',
            capabilities,
            registered: new Date().toISOString(),
            lastHeartbeat: new Date().toISOString()
        }));
        this.terminal.print(`✅ Agent '${id}' registered with ${capabilities.length} capabilities`, 'success');
    }
    unregisterAgent(id) {
        const ok = this.terminal.fs.deleteFile(`agents/${id}`);
        if (ok) {
            this.terminal.print(`✅ Agent '${id}' unregistered`, 'success');
        } else {
            this.terminal.print(`❌ Agent '${id}' not found`, 'error');
        }
    }
    showAgentStatus(id) {
        if (!id) return this.terminal.print('Usage: agent-status <agent-id>', 'error');
        const data = this.terminal.fs.readFile(`/agents/${id}/status.json`);
        if (!data) return this.terminal.print(`❌ Agent '${id}' not found`, 'error');
        const s = JSON.parse(data);
        this.terminal.print(`Agent: ${s.id}`, 'header');
        this.terminal.print(`  Status: ${s.status}`, 'info');
        this.terminal.print(`  Capabilities: ${(s.capabilities || []).join(', ')}`, 'info');
        this.terminal.print(`  Registered: ${s.registered}`, 'info');
        this.terminal.print(`  Last Heartbeat: ${s.lastHeartbeat}`, 'info');
    }
    getAgent(id) {
        const data = this.terminal.fs.readFile(`/agents/${id}/status.json`);
        return data ? JSON.parse(data) : null;
    }
    updateHeartbeat(id) {
        const agent = this.getAgent(id);
        if (!agent) return false;
        agent.lastHeartbeat = new Date().toISOString();
        this.terminal.fs.writeFile(`agents/${id}/status.json`, JSON.stringify(agent));
        return true;
    }
}