Files
openchamber/packages/vscode/src/opencode.ts
T

289 lines
8.5 KiB
TypeScript

import * as vscode from 'vscode';
import * as os from 'os';
import { createOpencodeServer } from '@opencode-ai/sdk/server';
const READY_CHECK_TIMEOUT_MS = 30000;
export type ConnectionStatus = 'disconnected' | 'connecting' | 'connected' | 'error';
export type OpenCodeDebugInfo = {
mode: 'managed' | 'external';
status: ConnectionStatus;
lastError?: string;
workingDirectory: string;
cliAvailable: boolean;
cliPath: string | null;
configuredApiUrl: string | null;
configuredPort: number | null;
detectedPort: number | null;
apiPrefix: string;
apiPrefixDetected: boolean;
startCount: number;
restartCount: number;
lastStartAt: number | null;
lastConnectedAt: number | null;
lastExitCode: number | null;
serverUrl: string | null;
};
export interface OpenCodeManager {
start(workdir?: string): Promise<void>;
stop(): Promise<void>;
restart(): Promise<void>;
setWorkingDirectory(path: string): Promise<{ success: boolean; restarted: boolean; path: string }>;
getStatus(): ConnectionStatus;
getApiUrl(): string | null;
getWorkingDirectory(): string;
isCliAvailable(): boolean;
getDebugInfo(): OpenCodeDebugInfo;
onStatusChange(callback: (status: ConnectionStatus, error?: string) => void): vscode.Disposable;
}
function resolvePortFromUrl(url: string): number | null {
try {
const parsed = new URL(url);
return parsed.port ? parseInt(parsed.port, 10) : null;
} catch {
return null;
}
}
async function waitForReady(url: string, timeoutMs = 5000): Promise<boolean> {
const start = Date.now();
while (Date.now() - start < timeoutMs) {
try {
const controller = new AbortController();
// Increase per-request timeout to 3s to allow for cold start latency without aborting
const timeout = setTimeout(() => controller.abort(), 3000);
const res = await fetch(`${url.replace(/\/+$/, '')}/config`, {
method: 'GET',
headers: { Accept: 'application/json' },
signal: controller.signal
});
clearTimeout(timeout);
if (res.ok) return true;
} catch {
// ignore
}
// Retry faster
await new Promise(r => setTimeout(r, 100));
}
return false;
}
function inferApiPrefixFromUrl(url: string): string {
try {
const parsed = new URL(url);
const pathname = parsed.pathname;
if (pathname === '/' || pathname === '') {
return '';
}
return pathname.endsWith('/') ? pathname.slice(0, -1) : pathname;
} catch {
return '';
}
}
export function createOpenCodeManager(_context: vscode.ExtensionContext): OpenCodeManager {
// Discard unused parameter - reserved for future use (state persistence, subscriptions)
void _context;
let server: { url: string; close: () => void } | null = null;
let status: ConnectionStatus = 'disconnected';
let lastError: string | undefined;
const listeners = new Set<(status: ConnectionStatus, error?: string) => void>();
let workingDirectory: string = vscode.workspace.workspaceFolders?.[0]?.uri.fsPath || os.homedir();
let startCount = 0;
let restartCount = 0;
let lastStartAt: number | null = null;
let lastConnectedAt: number | null = null;
let lastExitCode: number | null = null;
let detectedPort: number | null = null;
let apiPrefix: string = '';
let apiPrefixDetected = false;
let cliMissing = false;
const config = vscode.workspace.getConfiguration('openchamber');
const configuredApiUrl = config.get<string>('apiUrl') || '';
const useConfiguredUrl = configuredApiUrl && configuredApiUrl.trim().length > 0;
let configuredPort: number | null = null;
if (useConfiguredUrl) {
try {
const parsed = new URL(configuredApiUrl);
if (parsed.port) {
configuredPort = parseInt(parsed.port, 10);
}
} catch {
// Invalid URL
}
}
const setStatus = (newStatus: ConnectionStatus, error?: string) => {
if (status !== newStatus || lastError !== error) {
status = newStatus;
lastError = error;
if (newStatus === 'connected') {
lastConnectedAt = Date.now();
}
listeners.forEach(cb => cb(status, error));
}
};
const getApiUrl = (): string | null => {
if (useConfiguredUrl && configuredApiUrl) {
return configuredApiUrl.replace(/\/+$/, '');
}
if (server?.url) {
return server.url.replace(/\/+$/, '');
}
if (detectedPort) {
return `http://127.0.0.1:${detectedPort}${apiPrefix}`;
}
return null;
};
async function start(workdir?: string): Promise<void> {
startCount += 1;
lastStartAt = Date.now();
if (typeof workdir === 'string' && workdir.trim().length > 0) {
workingDirectory = workdir.trim();
}
if (useConfiguredUrl && configuredApiUrl) {
setStatus('connecting');
setStatus('connected');
return;
}
setStatus('connecting');
cliMissing = false; // Reset assumption on retry
detectedPort = null;
apiPrefix = '';
apiPrefixDetected = false;
lastExitCode = null;
try {
// Let the SDK/OS choose a random available port (port: 0)
server = await createOpencodeServer({
hostname: '127.0.0.1',
port: 0,
timeout: READY_CHECK_TIMEOUT_MS,
signal: undefined,
});
if (server && server.url) {
// Wait for actual HTTP readiness (stdout "listening" isn't always enough on Windows)
if (await waitForReady(server.url, 10000)) {
detectedPort = resolvePortFromUrl(server.url);
apiPrefix = inferApiPrefixFromUrl(server.url);
apiPrefixDetected = apiPrefix.length > 0;
setStatus('connected');
} else {
// Cleanup zombie process if health check fails
try {
server.close();
} catch {
// ignore
}
server = null;
throw new Error('Server started but health check failed');
}
} else {
throw new Error('Server started but URL is missing');
}
} catch (err) {
const message = err instanceof Error ? err.message : String(err);
// Check for ENOENT or generic spawn failure which implies CLI missing
if (message.includes('ENOENT') || message.includes('spawn opencode')) {
cliMissing = true;
setStatus('error', 'OpenCode CLI not found. Install it or ensure it\'s in PATH.');
vscode.window.showErrorMessage(
'OpenCode CLI not found. Please install it or ensure it\'s in PATH.',
'More Info'
).then(selection => {
if (selection === 'More Info') {
vscode.env.openExternal(vscode.Uri.parse('https://github.com/opencode-ai/opencode'));
}
});
} else {
setStatus('error', `Failed to start OpenCode: ${message}`);
}
}
}
async function stop(): Promise<void> {
if (server) {
try {
server.close();
} catch {
// Ignore close errors
}
server = null;
}
detectedPort = null;
setStatus('disconnected');
}
async function restart(): Promise<void> {
restartCount += 1;
await stop();
await new Promise(r => setTimeout(r, 250));
await start();
}
async function setWorkingDirectory(newPath: string): Promise<{ success: boolean; restarted: boolean; path: string }> {
const target = typeof newPath === 'string' && newPath.trim().length > 0 ? newPath.trim() : workingDirectory;
if (target === workingDirectory) {
return { success: true, restarted: false, path: target };
}
workingDirectory = target;
if (useConfiguredUrl && configuredApiUrl) {
return { success: true, restarted: false, path: target };
}
return { success: true, restarted: false, path: target };
}
return {
start,
stop,
restart,
setWorkingDirectory,
getStatus: () => status,
getApiUrl,
getWorkingDirectory: () => workingDirectory,
isCliAvailable: () => !cliMissing,
getDebugInfo: () => ({
mode: useConfiguredUrl && configuredApiUrl ? 'external' : 'managed',
status,
lastError,
workingDirectory,
cliAvailable: !cliMissing,
cliPath: null,
configuredApiUrl: useConfiguredUrl && configuredApiUrl ? configuredApiUrl.replace(/\/+$/, '') : null,
configuredPort,
detectedPort,
apiPrefix,
apiPrefixDetected,
startCount,
restartCount,
lastStartAt,
lastConnectedAt,
lastExitCode,
serverUrl: getApiUrl(),
}),
onStatusChange(callback) {
listeners.add(callback);
callback(status, lastError);
return new vscode.Disposable(() => listeners.delete(callback));
},
};
}