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2x 1x 1x 1x 1x 1x 1x 1x 1x 1x 3x 35x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 32x 32x 6x 6x 6x 6x 1x 1x 5x 5x 5x 5x 5x 5x 1x 1x 1x 1x 1x 1x 1x 1x 5x 3x 3x 3x 3x 3x 3x 3x 3x 3x 3x 3x 3x 3x 28x 28x 28x 28x 2x 1x 1x 1x 28x 2x 1x 1x 3x 3x 3x 3x 3x 3x 3x 1x 1x 1x 1x 1x 3x 3x 1x 2x 2x 2x 2x 2x 2x 2x 2x 1x 1x 1x 1x 1x 1x 2x 5x 5x 5x 5x 5x 2x 2x 3x 3x 3x 1x 1x 1x 2x 2x 1x 1x 1x 1x 2x 2x 1x 1x 1x | import { Client } from '@modelcontextprotocol/sdk/client/index.js';
import { StdioClientTransport } from '@modelcontextprotocol/sdk/client/stdio.js';
import { SSEClientTransport } from '@modelcontextprotocol/sdk/client/sse.js';
import { StreamableHTTPClientTransport } from '@modelcontextprotocol/sdk/client/streamableHttp.js';
import { Tool, Resource, Prompt } from '@modelcontextprotocol/sdk/types.js';
import { ProviderConfig, ProviderInstance, QueuedRequest } from '../types/index.js';
import { classifyError, shouldAttemptReconnection } from '../utils/errorClassifier.js';
import { hasTextContent } from '../utils/typeGuards.js';
import { ProjectCacheData, UserRole } from '../cache/CacheManager.js';
import { EventEmitter } from 'events';
import { randomUUID } from 'crypto';
export class ProviderManager extends EventEmitter {
private providers: Map<string, ProviderInstance> = new Map();
private updateCheckInterval?: NodeJS.Timeout;
private reconnectionTimers: Map<string, NodeJS.Timeout> = new Map();
// Cache structure: [provider -> projects] and [provider -> project -> users]
private projectsCache: Map<string, ProjectCacheData[]> = new Map();
private usersCache: Map<string, Map<string, UserRole[]>> = new Map();
// Request queuing constants
private static readonly REQUEST_TIMEOUT_MS = 30000; // 30 seconds
async initializeProvider(config: ProviderConfig): Promise<ProviderInstance> {
const { logger } = await import('../utils/logger.js');
logger.debug(`=== Initializing ${config.id} Provider ===`);
logger.debug(` Provider: ${config.name}`);
logger.debug(` Type: ${config.type}`);
logger.debug(` Command: ${config.command}`);
logger.debug(` Args: [${config.args?.join(', ') ?? 'none'}]`);
// Validate tokens before attempted to initialize
const hasRequiredTokens = this.validateProviderTokens(config, logger);
logger.debug(` Token validation: ${hasRequiredTokens ? 'PASSED' : 'FAILED'}`);
if (!hasRequiredTokens) {
const instance: ProviderInstance = {
id: config.id,
config,
tools: new Map(),
resources: new Map(),
prompts: new Map(),
status: 'auth_failed',
error: 'Required authentication tokens are missing',
errorType: 'auth',
shouldReconnect: false,
lastUpdated: new Date(),
};
logger.warn(` ❌ Skipping initialization - missing required tokens`);
this.providers.set(config.id, instance);
this.emit('provider:auth_failed', instance);
return instance;
}
const instance: ProviderInstance = {
id: config.id,
config,
tools: new Map(),
resources: new Map(),
prompts: new Map(),
status: 'starting',
reconnectAttempts: 0,
lastUpdated: new Date(),
isUpdating: false,
requestQueue: [],
};
try {
logger.debug(` Creating client transport...`);
if (config.type === 'stdio' && config.command) {
instance.client = await this.createStdioClient(config, logger);
logger.debug(` ✓ STDIO client created successfully`);
} else Eif (config.type === 'sse' && config.url) {
instance.client = await this.createSSEClient(config);
logger.debug(` ✓ SSE client created successfully`);
} else if (config.type === 'http' && config.url) {
instance.client = await this.createHTTPClient(config);
logger.debug(` ✓ HTTP client created successfully`);
}
if (instance.client) {
logger.debug(` Loading capabilities from ${config.name}...`);
await this.connectAndLoadCapabilities(instance, logger);
logger.debug(` ✓ Capabilities loaded from ${config.name}`);
} else E{
throw new Error(`Failed to create client for ${config.id}`);
}
instance.status = 'connected';
instance.reconnectAttempts = 0; // Reset on successful connection
this.setupProviderMonitoring(instance);
this.providers.set(config.id, instance);
logger.log(` ✅ Provider ${config.id} initialized successfully`);
this.emit('provider:connected', instance);
} catch (error) {
logger.error(
` ❌ Provider ${config.id} initialization failed: ${error instanceof Error ? error.message : String(error)}`,
);
const classification = classifyError(error);
instance.status = classification.type === 'auth' ? 'auth_failed' : 'error';
instance.error = classification.message;
instance.errorType = classification.type;
instance.shouldReconnect = classification.shouldReconnect;
instance.lastUpdated = new Date();
this.providers.set(config.id, instance);
if (classification.type === 'auth') {
this.emit('provider:auth_failed', instance);
} else {
this.emit('provider:error', { provider: instance, error });
// Schedule reconnection for non-auth errors if appropriate
Eif (classification.shouldReconnect) {
this.scheduleReconnection(instance);
}
}
process.stderr.write(
`Failed to initialize provider ${config.id}: ${classification.message}\n`,
);
}
return instance;
}
private async createStdioClient(
config: ProviderConfig,
logger: { debug: (msg: string) => void },
): Promise<Client> {
const client = new Client(
{
name: `nexus-proxy-${config.id}`,
version: '1.0.0',
},
{
capabilities: {},
},
);
const command = config.command;
Iif (!command) {
throw new Error('Command is required for STDIO transport');
}
const args = config.args ?? [];
const env = Object.fromEntries(
Object.entries({ ...process.env, ...config.env })
.filter(([, value]) => value !== undefined && typeof value === 'string')
.map(([key, value]) => [key, value as string]),
);
logger.debug(` Spawning: ${command} ${args.join(' ')}`);
// Add debug logging for Azure specifically
Iif (config.id === 'azure') {
logger.debug(` Azure environment variables:`);
for (const [key, value] of Object.entries(env)) {
if (key.includes('AZURE')) {
logger.debug(` ${key}: ${value ? '[SET]' : '[NOT SET]'}`);
}
}
}
const transport = new StdioClientTransport({
command,
args,
env,
});
try {
await client.connect(transport);
Iif (config.id === 'azure') {
logger.debug(` Azure MCP client connected successfully`);
}
} catch (error) {
Iif (config.id === 'azure') {
logger.debug(
` Azure MCP connection failed: ${error instanceof Error ? error.message : String(error)}`,
);
}
throw error;
}
return client;
}
private async createSSEClient(config: ProviderConfig): Promise<Client> {
const client = new Client(
{
name: `nexus-proxy-${config.id}`,
version: '1.0.0',
},
{
capabilities: {},
},
);
if (!config.url) {
throw new Error('URL is required for SSE transport');
}
const transport = new SSEClientTransport(new URL(config.url));
await client.connect(transport);
return client;
}
private async createHTTPClient(config: ProviderConfig): Promise<Client> {
if (!config.url) {
throw new Error('URL is required for HTTP transport');
}
const client = new Client(
{
name: 'nexus-proxy-client',
version: '1.0.0',
},
{
capabilities: {},
},
);
// Use Streamable HTTP transport for MCP communication
const transport = new StreamableHTTPClientTransport(new URL(config.url), {
requestInit: {
headers: config.headers ?? {},
},
});
await client.connect(transport);
return client;
}
private async connectAndLoadCapabilities(
instance: ProviderInstance,
logger: { debug: (msg: string) => void },
): Promise<void> {
const client = instance.client;
Iif (!client) {
throw new Error('Client not initialized');
}
logger.debug(` Listing tools...`);
try {
const listToolsResult = await client.listTools();
logger.debug(` ✓ Found ${listToolsResult.tools.length} tools`);
for (const tool of listToolsResult.tools) {
const prefixedName = `${instance.id}_${tool.name}`;
instance.tools.set(prefixedName, {
...tool,
name: prefixedName,
description: `[${instance.config.name}] ${tool.description ?? ''}`,
});
}
} catch (error) {
logger.debug(
` ❌ Could not list tools for ${instance.id}: ${error instanceof Error ? error.message : String(error)}`,
);
}
logger.debug(` Listing resources...`);
try {
const listResourcesResult = await client.listResources();
logger.debug(` ✓ Found ${listResourcesResult.resources.length} resources`);
for (const resource of listResourcesResult.resources) {
const prefixedUri = `${instance.id}:${resource.uri}`;
instance.resources.set(prefixedUri, {
...resource,
uri: prefixedUri,
name: `[${instance.config.name}] ${resource.name}`,
});
}
} catch (error) {
logger.debug(
` ❌ Could not list resources for ${instance.id}: ${error instanceof Error ? error.message : String(error)}`,
);
}
logger.debug(` Listing prompts...`);
try {
const listPromptsResult = await client.listPrompts();
logger.debug(` ✓ Found ${listPromptsResult.prompts.length} prompts`);
for (const prompt of listPromptsResult.prompts) {
const prefixedName = `${instance.id}_${prompt.name}`;
instance.prompts.set(prefixedName, {
...prompt,
name: prefixedName,
description: `[${instance.config.name}] ${prompt.description ?? ''}`,
});
}
} catch (error) {
logger.debug(
` ❌ Could not list prompts for ${instance.id}: ${error instanceof Error ? error.message : String(error)}`,
);
}
}
async reloadProvider(providerId: string): Promise<void> {
const existingProvider = this.providers.get(providerId);
if (!existingProvider) {
throw new Error(`Provider ${providerId} not found`);
}
process.stdout.write(`Reloading provider: ${providerId}\n`);
// Set updating state to queue incoming requests
await this.setProviderUpdating(providerId, true);
try {
await this.disconnectProvider(providerId);
// Reset reconnection attempts when manually reloading
existingProvider.reconnectAttempts = 0;
existingProvider.lastReconnectTime = undefined;
existingProvider.error = undefined;
existingProvider.errorType = undefined;
existingProvider.shouldReconnect = undefined;
await new Promise((resolve) => setTimeout(resolve, 1000));
await this.initializeProvider(existingProvider.config);
// Clear updating state and process queued requests
await this.setProviderUpdating(providerId, false);
} catch (error) {
// If reload failed, still clear updating state but don't process queue
const provider = this.providers.get(providerId);
Eif (provider) {
provider.isUpdating = false;
provider.status = 'error';
provider.updateStartTime = undefined;
// Clear the request queue with errors
Eif (provider.requestQueue) {
for (const request of provider.requestQueue) {
Eif (request.timeoutId) {
clearTimeout(request.timeoutId);
}
request.reject(
new Error(
`Provider reload failed: ${error instanceof Error ? error.message : String(error)}`,
),
);
}
provider.requestQueue = [];
}
}
throw error;
}
}
async disconnectProvider(providerId: string): Promise<void> {
const provider = this.providers.get(providerId);
Iif (!provider) {
return;
}
// Clear any pending reconnection timer
const existingTimer = this.reconnectionTimers.get(providerId);
if (existingTimer) {
clearTimeout(existingTimer);
this.reconnectionTimers.delete(providerId);
}
Eif (provider.client) {
try {
await provider.client.close();
} catch (error) {
process.stderr.write(
`Error closing client for ${providerId}: ${error instanceof Error ? error.message : String(error)}\n`,
);
}
}
provider.status = 'disconnected';
provider.lastUpdated = new Date();
this.emit('provider:disconnected', provider);
}
getAllTools(): Tool[] {
const allTools: Tool[] = [];
for (const provider of this.providers.values()) {
if (provider.status === 'connected') {
const filteredTools = Array.from(provider.tools.values()).filter((tool) => {
// Hide internal GitLab tools that should not be exposed to clients
Iif (tool.name === 'gitlab_list_user_projects') {
return false;
}
return true;
});
allTools.push(...filteredTools);
}
}
return allTools;
}
getAllResources(): Resource[] {
const allResources: Resource[] = [];
for (const provider of this.providers.values()) {
if (provider.status === 'connected') {
allResources.push(...Array.from(provider.resources.values()));
}
}
return allResources;
}
getAllPrompts(): Prompt[] {
const allPrompts: Prompt[] = [];
for (const provider of this.providers.values()) {
if (provider.status === 'connected') {
allPrompts.push(...Array.from(provider.prompts.values()));
}
}
return allPrompts;
}
async callTool(toolName: string, args: Record<string, unknown>): Promise<unknown> {
const providerId = toolName.split('_')[0];
const originalToolName = toolName.substring(providerId.length + 1);
const provider = this.providers.get(providerId);
if (!provider) {
throw new Error(`Provider ${providerId} not found`);
}
// If provider is updating, queue the request
if (provider.isUpdating || provider.status === 'updating') {
return this.queueRequest(provider, 'tool', {
name: originalToolName,
arguments: args,
});
}
if (provider.status !== 'connected') {
throw new Error(`Provider ${providerId} not available (status: ${provider.status})`);
}
Iif (!provider.client) {
throw new Error(`Client not initialized for provider ${providerId}`);
}
try {
const result = await provider.client.callTool({
name: originalToolName,
arguments: args,
});
return result;
} catch (error) {
process.stderr.write(
`Error calling tool ${toolName}: ${error instanceof Error ? error.message : String(error)}\n`,
);
throw error;
}
}
async readResource(uri: string): Promise<unknown> {
const providerId = uri.split(':')[0];
const originalUri = uri.substring(providerId.length + 1);
const provider = this.providers.get(providerId);
Iif (!provider) {
throw new Error(`Provider ${providerId} not found`);
}
// If provider is updating, queue the request
if (provider.isUpdating || provider.status === 'updating') {
return this.queueRequest(provider, 'resource', {
uri: originalUri,
});
}
Iif (provider.status !== 'connected') {
throw new Error(`Provider ${providerId} not available (status: ${provider.status})`);
}
Iif (!provider.client) {
throw new Error(`Client not initialized for provider ${providerId}`);
}
try {
const result = await provider.client.readResource({
uri: originalUri,
});
return result;
} catch (error) {
process.stderr.write(
`Error reading resource ${uri}: ${error instanceof Error ? error.message : String(error)}\n`,
);
throw error;
}
}
async getPrompt(promptName: string, args?: Record<string, unknown>): Promise<unknown> {
const providerId = promptName.split('_')[0];
const originalPromptName = promptName.substring(providerId.length + 1);
const provider = this.providers.get(providerId);
Iif (!provider) {
throw new Error(`Provider ${providerId} not found`);
}
// If provider is updating, queue the request
Iif (provider.isUpdating || provider.status === 'updating') {
return this.queueRequest(provider, 'prompt', {
name: originalPromptName,
arguments: args,
});
}
Iif (provider.status !== 'connected') {
throw new Error(`Provider ${providerId} not available (status: ${provider.status})`);
}
Iif (!provider.client) {
throw new Error(`Client not initialized for provider ${providerId}`);
}
try {
const promptArgs: Record<string, string> | undefined = args
? Object.fromEntries(
Object.entries(args).map(([key, value]) => [
key,
typeof value === 'string'
? value
: value === null || value === undefined
? ''
: typeof value === 'object'
? JSON.stringify(value)
: typeof value === 'number' || typeof value === 'boolean'
? String(value)
: '',
]),
)
: undefined;
const result = await provider.client.getPrompt({
name: originalPromptName,
arguments: promptArgs,
});
return result;
} catch (error) {
process.stderr.write(
`Error getting prompt ${promptName}: ${error instanceof Error ? error.message : String(error)}\n`,
);
throw error;
}
}
startAutoUpdate(intervalMs: number = 60000): void {
this.updateCheckInterval = setInterval(() => {
this.checkForUpdates();
}, intervalMs);
}
stopAutoUpdate(): void {
Eif (this.updateCheckInterval) {
clearInterval(this.updateCheckInterval);
this.updateCheckInterval = undefined;
}
}
private checkForUpdates(): void {
for (const provider of this.providers.values()) {
if (provider.config.autoUpdate) {
try {
process.stdout.write(`Checking for updates for ${provider.id}...\n`);
// Update check logic would go here
// For now, we'll just emit an event
this.emit('provider:update-check', provider);
} catch (error) {
process.stderr.write(
`Error checking updates for ${provider.id}: ${error instanceof Error ? error.message : String(error)}\n`,
);
}
}
}
}
async shutdown(): Promise<void> {
this.stopAutoUpdate();
this.clearReconnectionTimers();
// Clear provider caches
this.projectsCache.clear();
this.usersCache.clear();
for (const providerId of this.providers.keys()) {
await this.disconnectProvider(providerId);
}
this.providers.clear();
}
getProvider(id: string): ProviderInstance | undefined {
return this.providers.get(id);
}
getAllProviders(): ProviderInstance[] {
return Array.from(this.providers.values());
}
/**
* Validate that required tokens are available for the provider
*/
private validateProviderTokens(
config: ProviderConfig,
logger: { debug: (msg: string) => void },
): boolean {
switch (config.id) {
case 'github': {
const hasGithubToken = Boolean(process.env.GITHUB_TOKEN);
logger.debug(` GITHUB_TOKEN: ${hasGithubToken ? 'SET' : 'MISSING'}`);
return hasGithubToken;
}
case 'gitlab': {
const hasGitlabToken = Boolean(process.env.GITLAB_TOKEN);
logger.debug(` GITLAB_TOKEN: ${hasGitlabToken ? 'SET' : 'MISSING'}`);
return hasGitlabToken;
}
case 'azure': {
const hasAzureToken = Boolean(process.env.AZURE_TOKEN);
const hasAzureOrg = Boolean(process.env.AZURE_ORG);
logger.debug(` AZURE_TOKEN: ${hasAzureToken ? 'SET' : 'MISSING'}`);
logger.debug(` AZURE_ORG: ${hasAzureOrg ? 'SET' : 'MISSING'}`);
return hasAzureToken && hasAzureOrg;
}
default: {
// For unknown providers, assume tokens are not required
logger.debug(` No validation required for ${config.id}`);
return true;
}
}
}
/**
* Schedule reconnection attempt for a provider
*/
private scheduleReconnection(instance: ProviderInstance): void {
const { id } = instance;
const attempts = instance.reconnectAttempts ?? 0;
const lastReconnectTime = instance.lastReconnectTime;
if (!shouldAttemptReconnection(attempts, lastReconnectTime)) {
process.stderr.write(
`Skipping reconnection for ${id}: too many attempts or cooldown period not met\n`,
);
return;
}
// Clear existing timer if any
const existingTimer = this.reconnectionTimers.get(id);
Iif (existingTimer) {
clearTimeout(existingTimer);
}
// Calculate delay: exponential backoff starting at 5 seconds
const baseDelay = 5000; // 5 seconds
const delay = baseDelay * Math.pow(2, attempts);
process.stderr.write(
`Scheduling reconnection for ${id} in ${delay}ms (attempt ${attempts + 1})\n`,
);
const timer = setTimeout(() => {
void (async () => {
this.reconnectionTimers.delete(id);
try {
process.stderr.write(`Attempting reconnection for ${id}...\n`);
// Update reconnection tracking
instance.reconnectAttempts = (instance.reconnectAttempts ?? 0) + 1;
instance.lastReconnectTime = new Date();
instance.status = 'starting';
// Attempt to reinitialize
await this.initializeProvider(instance.config);
} catch (error) {
process.stderr.write(
`Reconnection failed for ${id}: ${error instanceof Error ? error.message : String(error)}\n`,
);
}
})();
}, delay);
this.reconnectionTimers.set(id, timer);
}
/**
* Handle provider process failure (e.g., killed externally)
*/
handleProviderFailure(providerId: string, error?: Error): void {
const provider = this.providers.get(providerId);
Iif (!provider) {
return;
}
const classification = error
? classifyError(error)
: {
type: 'network' as const,
shouldReconnect: true,
message: 'Provider process terminated unexpectedly',
};
provider.status = classification.type === 'auth' ? 'auth_failed' : 'error';
provider.error = classification.message;
provider.errorType = classification.type;
provider.shouldReconnect = classification.shouldReconnect;
provider.lastUpdated = new Date();
Iif (classification.type === 'auth') {
process.stderr.write(
`Provider ${providerId} failed with authentication error, will not reconnect\n`,
);
this.emit('provider:auth_failed', provider);
} else {
process.stderr.write(`Provider ${providerId} failed: ${classification.message}\n`);
this.emit('provider:error', { provider, error: error ?? new Error(classification.message) });
Eif (classification.shouldReconnect) {
this.scheduleReconnection(provider);
}
}
}
/**
* Monitor provider processes for unexpected failures
*/
private setupProviderMonitoring(instance: ProviderInstance): void {
Iif (!instance.client) {
return;
}
// Listen for transport errors/disconnections if available
// Note: Not all MCP client transports expose these events
try {
const transport = (
instance.client as unknown as {
_transport?: { onclose?: () => void; onerror?: (error: unknown) => void };
}
)._transport;
if (transport && typeof transport.onclose === 'function') {
transport.onclose = () => {
Eif (instance.status === 'connected') {
process.stderr.write(`Provider ${instance.id} disconnected unexpectedly\n`);
this.handleProviderFailure(instance.id);
}
};
}
if (transport && typeof transport.onerror === 'function') {
transport.onerror = (error: unknown) => {
process.stderr.write(
`Provider ${instance.id} error: ${error instanceof Error ? error.message : String(error)}\n`,
);
this.handleProviderFailure(instance.id, error instanceof Error ? error : undefined);
};
}
} catch {
// Transport monitoring not available, that's okay
process.stderr.write(`Transport monitoring not available for ${instance.id}\n`);
}
}
/**
* Queue a request during provider update
*/
private async queueRequest(
provider: ProviderInstance,
type: 'tool' | 'resource' | 'prompt',
data: {
name?: string;
uri?: string;
arguments?: Record<string, unknown>;
},
): Promise<unknown> {
return new Promise((resolve, reject) => {
const requestId = randomUUID();
const queuedRequest: QueuedRequest = {
id: requestId,
type,
data,
resolve,
reject,
timestamp: new Date(),
};
// Initialize queue if not exists
provider.requestQueue ??= [];
provider.requestQueue.push(queuedRequest);
process.stderr.write(
`Request queued for provider ${provider.id} (${type}): ${data.name ?? data.uri ?? 'prompt'}\n`,
);
// Set timeout for the request
const timeoutId = setTimeout(() => {
// Remove from queue and reject with timeout error
Eif (provider.requestQueue) {
const index = provider.requestQueue.findIndex((req) => req.id === requestId);
Eif (index !== -1) {
provider.requestQueue.splice(index, 1);
reject(
new Error(
`Request timed out after ${ProviderManager.REQUEST_TIMEOUT_MS}ms while provider ${provider.id} was updating`,
),
);
}
}
}, ProviderManager.REQUEST_TIMEOUT_MS);
// Store timeout ID in the request for cleanup
queuedRequest.timeoutId = timeoutId;
});
}
/**
* Process queued requests after provider is back online
*/
private async processQueuedRequests(provider: ProviderInstance): Promise<void> {
if (!provider.requestQueue || provider.requestQueue.length === 0) {
return;
}
process.stderr.write(
`Processing ${provider.requestQueue.length} queued requests for provider ${provider.id}\n`,
);
const requestsToProcess = [...provider.requestQueue];
provider.requestQueue = []; // Clear queue
for (const request of requestsToProcess) {
// Clear timeout
Eif (request.timeoutId) {
clearTimeout(request.timeoutId);
}
try {
let result: unknown;
switch (request.type) {
case 'tool':
Eif (request.data.name && provider.client) {
result = await provider.client.callTool({
name: request.data.name,
arguments: request.data.arguments ?? {},
});
}
break;
case 'resource':
Eif (request.data.uri && provider.client) {
result = await provider.client.readResource({
uri: request.data.uri,
});
}
break;
case 'prompt':
if (request.data.name && provider.client) {
const promptArgs: Record<string, string> | undefined = request.data.arguments
? Object.fromEntries(
Object.entries(request.data.arguments).map(([key, value]) => [
key,
typeof value === 'string'
? value
: value === null || value === undefined
? ''
: typeof value === 'object'
? JSON.stringify(value)
: typeof value === 'number' || typeof value === 'boolean'
? String(value)
: '',
]),
)
: undefined;
result = await provider.client.getPrompt({
name: request.data.name,
arguments: promptArgs,
});
}
break;
}
request.resolve(result);
} catch (error) {
request.reject(error instanceof Error ? error : new Error(String(error)));
}
}
}
/**
* Set provider updating state and queue incoming requests
*/
async setProviderUpdating(providerId: string, updating: boolean): Promise<void> {
const provider = this.providers.get(providerId);
Iif (!provider) {
return;
}
provider.isUpdating = updating;
provider.status = updating ? 'updating' : 'connected';
if (updating) {
provider.updateStartTime = new Date();
process.stderr.write(`Provider ${providerId} is now updating - queueing new requests\n`);
} else {
provider.updateStartTime = undefined;
process.stderr.write(`Provider ${providerId} update complete - processing queued requests\n`);
await this.processQueuedRequests(provider);
}
}
/**
* Restart all providers (for debugging)
*/
async restartAllProviders(): Promise<void> {
process.stderr.write(`Restarting all ${this.providers.size} providers...\n`);
const providerIds = Array.from(this.providers.keys());
const results = await Promise.allSettled(
providerIds.map((providerId) => this.reloadProvider(providerId)),
);
const successful = results.filter((result) => result.status === 'fulfilled').length;
const failed = results.length - successful;
process.stderr.write(`Provider restart complete: ${successful} successful, ${failed} failed\n`);
Eif (failed > 0) {
const failures = results
.map((result, index) => ({ result, id: providerIds[index] }))
.filter(({ result }) => result.status === 'rejected')
.map(({ result, id }) => `${id}: ${(result as PromiseRejectedResult).reason}`);
process.stderr.write(`Failed providers:\n${failures.join('\n')}\n`);
}
}
/**
* Clear all reconnection timers on shutdown
*/
private clearReconnectionTimers(): void {
for (const [id, timer] of this.reconnectionTimers.entries()) {
clearTimeout(timer);
this.reconnectionTimers.delete(id);
}
}
/**
* Warm up caches for all connected providers
*/
async warmupCaches(): Promise<void> {
const { logger } = await import('../utils/logger.js');
logger.debug('[cache] Starting provider-level cache warmup...');
const providers = Array.from(this.providers.values()).filter((p) => p.status === 'connected');
// Warm up projects and users sequentially for each provider (to avoid race conditions)
for (const provider of providers) {
try {
logger.debug(`[cache] Warming up projects for ${provider.id}...`);
const projects = await this.fetchProjectsFromProvider(provider.id);
this.projectsCache.set(provider.id, projects);
logger.debug(`[cache] Warming up users for ${provider.id}...`);
const users = this.fetchUsersFromProvider(provider.id);
this.usersCache.set(provider.id, users);
logger.debug(
`[cache] Warmup completed for ${provider.id}: ${projects.length} projects, ${Array.from(users.values()).reduce((total, projectUsers) => total + projectUsers.length, 0)} users`,
);
} catch (error) {
logger.debug(`[cache] Warmup failed for ${provider.id}: ${String(error)}`);
// Continue with next provider even if this one fails
}
}
logger.debug('[cache] Provider-level cache warmup completed for all providers');
}
/**
* Fetch projects from a specific provider (used for cache warming)
*/
private async fetchProjectsFromProvider(providerId: string): Promise<ProjectCacheData[]> {
const provider = this.providers.get(providerId);
if (!provider || provider.status !== 'connected') {
return [];
}
const projects: ProjectCacheData[] = [];
// Try different project listing tools based on provider
const projectTools =
providerId === 'gitlab'
? [
'list_user_projects', // GitLab user projects (internal tool)
'search_globally', // GitLab global search for projects
'list_projects', // GitLab projects
'list_groups', // GitLab groups
]
: providerId === 'azure'
? [
'core_list_projects', // Azure DevOps projects (correct tool name)
'list_projects', // Legacy fallback
'get_projects', // Alternative fallback
]
: [
'list_repositories', // GitHub direct repo listing (preferred)
'list_user_repositories', // GitHub user's repos
'search_repositories', // GitHub search with user:username
'list_organizations', // GitHub organizations
];
for (const toolSuffix of projectTools) {
const toolName = `${providerId}_${toolSuffix}`;
if (provider.tools.has(toolName)) {
try {
const { logger } = await import('../utils/logger.js');
logger.debug(`[cache] Trying tool: ${toolName}`);
// Prepare parameters based on tool type
let toolParams = {};
if (toolName.includes('search_globally')) {
// GitLab search_globally with scope=projects and active=true
toolParams = { scope: 'projects', active: 'true' };
} else if (toolName.includes('search_repositories')) {
// For GitHub search, we need to get the authenticated username first
let username = '';
if (providerId === 'github') {
// Try to get username from get_me tool
const getMeTool = `${providerId}_get_me`;
if (provider.tools.has(getMeTool)) {
try {
const meResult = await this.callTool(getMeTool, {});
if (hasTextContent(meResult)) {
const meJson = meResult.content[0].text;
const meData = JSON.parse(meJson) as Record<string, unknown>;
username = typeof meData.login === 'string' ? meData.login : '';
}
} catch {
// Skip search if we can't get username
continue;
}
}
} else {
// Skip search if we can't get username
continue;
}
toolParams = { query: `user:${username}` };
}
logger.debug(`[cache] Calling tool: ${toolName} with params:`, toolParams);
const result = await this.callTool(toolName, toolParams);
logger.debug(`[cache] Tool call successful: ${toolName}`);
if (hasTextContent(result)) {
const projectsJson = result.content[0].text;
const parsedProjects: unknown = JSON.parse(projectsJson);
// Handle both array responses and GitHub-style object responses
let projectArray: unknown[] = [];
if (Array.isArray(parsedProjects)) {
projectArray = parsedProjects;
} else if (typeof parsedProjects === 'object' && parsedProjects !== null) {
// GitHub search API returns { items: [...], total_count: number }
const searchResult = parsedProjects as Record<string, unknown>;
if (Array.isArray(searchResult.items)) {
projectArray = searchResult.items;
}
}
if (projectArray.length > 0) {
for (const project of projectArray) {
if (typeof project === 'object' && project !== null) {
const proj = project as Record<string, unknown>;
const projectId =
typeof proj.full_name === 'string'
? proj.full_name
: typeof proj.path_with_namespace === 'string'
? proj.path_with_namespace
: typeof proj.name === 'string'
? proj.name
: typeof proj.id === 'string' || typeof proj.id === 'number'
? String(proj.id)
: '';
const projectName =
typeof proj.name === 'string'
? proj.name
: typeof proj.title === 'string'
? proj.title
: projectId;
if (projectId && projectName) {
// Also fetch project members if available
const members = await this.fetchProjectMembers(providerId, projectId);
// Determine project URL based on provider
let projectUrl: string | undefined;
if (typeof proj.html_url === 'string') {
projectUrl = proj.html_url; // GitHub
} else if (typeof proj.web_url === 'string') {
projectUrl = proj.web_url; // GitLab
} else if (typeof proj.url === 'string') {
projectUrl = proj.url; // Azure
}
projects.push({
id: projectId,
name: projectName,
provider: providerId,
description:
typeof proj.description === 'string' ? proj.description : undefined,
url: projectUrl,
members: members,
});
}
}
}
// Return after first successful tool
break;
}
}
} catch {
// Continue with next tool if current one fails
continue;
}
}
}
return projects;
}
/**
* Fetch project members from a specific provider
*/
private async fetchProjectMembers(providerId: string, projectId: string): Promise<UserRole[]> {
const provider = this.providers.get(providerId);
if (!provider || provider.status !== 'connected') {
return [];
}
const memberTools = [
'list_project_members', // GitLab
'list_repository_collaborators', // GitHub
'list_collaborators', // GitHub alternative
'list_contributors', // GitHub contributors
'get_project_members', // Azure DevOps
'list_team_members', // Azure DevOps alternative
];
for (const toolSuffix of memberTools) {
const toolName = `${providerId}_${toolSuffix}`;
if (provider.tools.has(toolName)) {
try {
const result = await this.callTool(toolName, {
project_id: projectId,
id: projectId,
repo: projectId,
owner: projectId.split('/')[0], // For GitHub owner/repo format
repository: projectId,
});
if (hasTextContent(result)) {
const membersJson = result.content[0].text;
const parsedMembers: unknown = JSON.parse(membersJson);
if (Array.isArray(parsedMembers)) {
const members: UserRole[] = [];
for (const member of parsedMembers) {
if (typeof member === 'object' && member !== null) {
const mem = member as Record<string, unknown>;
const userId =
typeof mem.id === 'string' || typeof mem.id === 'number'
? String(mem.id)
: typeof mem.login === 'string'
? mem.login
: '';
const username =
typeof mem.username === 'string'
? mem.username
: typeof mem.login === 'string'
? mem.login
: userId;
const displayName =
typeof mem.name === 'string'
? mem.name
: typeof mem.display_name === 'string'
? mem.display_name
: username;
// Extract role information based on provider
let role = 'member'; // default role
let accessLevel: number | undefined;
if (typeof mem.role === 'string') {
role = mem.role; // GitLab
} else if (typeof mem.permissions === 'string') {
role = mem.permissions; // GitHub
} else if (typeof mem.access_level === 'number') {
accessLevel = mem.access_level; // GitLab access levels
// Convert GitLab access levels to roles
if (accessLevel >= 50) role = 'maintainer';
else if (accessLevel >= 40) role = 'developer';
else if (accessLevel >= 30) role = 'developer';
else if (accessLevel >= 20) role = 'reporter';
else role = 'guest';
}
if (userId && username) {
members.push({
userId,
username,
displayName,
email: typeof mem.email === 'string' ? mem.email : undefined,
role,
accessLevel,
});
}
}
}
return members;
}
}
} catch {
// Continue with next tool if current one fails
continue;
}
}
}
return [];
}
/**
* Fetch users from a specific provider (used for cache warming)
*/
private fetchUsersFromProvider(providerId: string): Map<string, UserRole[]> {
const usersByProject = new Map<string, UserRole[]>();
// Get projects first to populate users per project structure
const projects = this.projectsCache.get(providerId) ?? [];
for (const project of projects) {
if (project.members) {
usersByProject.set(project.id, project.members);
}
}
return usersByProject;
}
/**
* Get cached projects for a provider
*/
getCachedProjects(providerId: string): ProjectCacheData[] {
return this.projectsCache.get(providerId) ?? [];
}
/**
* Get cached users for a provider and project
*/
getCachedUsers(providerId: string, projectId?: string): UserRole[] {
const providerUsers = this.usersCache.get(providerId);
if (!providerUsers) return [];
if (projectId) {
return providerUsers.get(projectId) ?? [];
}
// Return all users from all projects
const allUsers: UserRole[] = [];
for (const projectUsers of providerUsers.values()) {
allUsers.push(...projectUsers);
}
// Deduplicate by userId
const uniqueUsers = new Map<string, UserRole>();
for (const user of allUsers) {
uniqueUsers.set(user.userId, user);
}
return Array.from(uniqueUsers.values());
}
}
|