import { configManager, ServerConfig } from '../config-manager.js';
import { SetConfigValueArgsSchema } from './schemas.js';
import { getSystemInfo } from '../utils/system-info.js';
import { currentClient } from '../server.js';
import { featureFlagManager } from '../utils/feature-flags.js';
import { access, readFile } from 'node:fs/promises';
import { constants as fsConstants } from 'node:fs';
import {
CONFIG_FIELD_DEFINITIONS,
CONFIG_FIELD_KEYS,
isConfigFieldKey,
} from '../config-field-definitions.js';
const ALLOWED_CONFIG_KEYS = new Set(CONFIG_FIELD_KEYS);
async function pathExists(pathValue: string): Promise<boolean> {
try {
await access(pathValue, fsConstants.X_OK);
return true;
} catch {
return false;
}
}
async function detectAvailableShells(systemInfo: ReturnType<typeof getSystemInfo>): Promise<string[]> {
const detected = new Set<string>();
const add = (shell: string): void => {
if (shell.trim().length > 0) {
detected.add(shell.trim());
}
};
add(systemInfo.defaultShell);
if (systemInfo.isWindows) {
add(process.env.ComSpec ?? '');
const systemRoot = process.env.SystemRoot ?? 'C:\\Windows';
const candidates = [
`${systemRoot}\\System32\\WindowsPowerShell\\v1.0\\powershell.exe`,
`${systemRoot}\\System32\\cmd.exe`,
`${systemRoot}\\System32\\bash.exe`,
'powershell.exe',
'pwsh.exe',
'cmd.exe',
'bash.exe',
];
for (const shell of candidates) {
if (shell.includes('\\')) {
if (await pathExists(shell)) {
add(shell);
}
} else {
add(shell);
}
}
return [...detected];
}
add(process.env.SHELL ?? '');
const shellFiles = ['/etc/shells'];
for (const shellFile of shellFiles) {
try {
const content = await readFile(shellFile, 'utf8');
content
.split(/\r?\n/)
.map((line) => line.trim())
.filter((line) => line.length > 0 && !line.startsWith('#'))
.forEach(add);
} catch {
// Best-effort discovery only.
}
}
const fallbackCandidates = ['/bin/zsh', '/bin/bash', '/bin/sh', '/usr/bin/fish'];
for (const shell of fallbackCandidates) {
if (await pathExists(shell)) {
add(shell);
}
}
return [...detected];
}
/**
* Get the entire config including system information
*/
export async function getConfig() {
console.error('getConfig called');
try {
const config = await configManager.getConfig();
// Add system information and current client to the config response
const systemInfo = getSystemInfo();
// Get memory usage
const memoryUsage = process.memoryUsage();
const memory = {
rss: `${(memoryUsage.rss / 1024 / 1024).toFixed(2)} MB`,
heapTotal: `${(memoryUsage.heapTotal / 1024 / 1024).toFixed(2)} MB`,
heapUsed: `${(memoryUsage.heapUsed / 1024 / 1024).toFixed(2)} MB`,
external: `${(memoryUsage.external / 1024 / 1024).toFixed(2)} MB`,
arrayBuffers: `${(memoryUsage.arrayBuffers / 1024 / 1024).toFixed(2)} MB`
};
const configWithSystemInfo = {
...config,
currentClient,
featureFlags: featureFlagManager.getAll(),
systemInfo: {
...systemInfo,
memory
}
};
const availableShells = await detectAvailableShells(systemInfo);
console.error(`getConfig result: ${JSON.stringify(configWithSystemInfo, null, 2)}`);
return {
content: [{
type: "text",
text: `Current configuration:\n${JSON.stringify(configWithSystemInfo, null, 2)}`
}],
structuredContent: {
config: configWithSystemInfo,
uiHints: {
availableShells,
},
entries: CONFIG_FIELD_KEYS.map((key) => {
const definition = CONFIG_FIELD_DEFINITIONS[key];
const value = (configWithSystemInfo as Record<string, unknown>)[key];
return {
key,
value,
valueType: definition.valueType,
editable: true,
};
}),
},
};
} catch (error) {
console.error(`Error in getConfig: ${error instanceof Error ? error.message : String(error)}`);
console.error(error instanceof Error && error.stack ? error.stack : 'No stack trace available');
// Return empty config rather than crashing
return {
content: [{
type: "text",
text: `Error getting configuration: ${error instanceof Error ? error.message : String(error)}\nUsing empty configuration.`
}],
};
}
}
/**
* Set a specific config value
*/
export async function setConfigValue(args: unknown) {
console.error(`setConfigValue called with args: ${JSON.stringify(args)}`);
try {
const parsed = SetConfigValueArgsSchema.safeParse(args);
if (!parsed.success) {
console.error(`Invalid arguments for set_config_value: ${parsed.error}`);
return {
content: [{
type: "text",
text: `Invalid arguments: ${parsed.error}`
}],
isError: true
};
}
if (!isConfigFieldKey(parsed.data.key)) {
return {
content: [{
type: "text",
text: `Key "${parsed.data.key}" is not configurable via this tool. Allowed keys: ${[...ALLOWED_CONFIG_KEYS].join(', ')}`
}],
isError: true
};
}
try {
const fieldDefinition = CONFIG_FIELD_DEFINITIONS[parsed.data.key];
// Parse string values that should be arrays or objects
let valueToStore = parsed.data.value;
// If the value is a string that looks like an array or object, try to parse it
if (typeof valueToStore === 'string' &&
(valueToStore.startsWith('[') || valueToStore.startsWith('{'))) {
try {
valueToStore = JSON.parse(valueToStore);
console.error(`Parsed string value to object/array: ${JSON.stringify(valueToStore)}`);
} catch (parseError) {
console.error(`Failed to parse string as JSON, using as-is: ${parseError}`);
}
}
// Special handling for known array configuration keys
if (fieldDefinition.valueType === 'array' && !Array.isArray(valueToStore)) {
if (typeof valueToStore === 'string') {
const originalString = valueToStore;
try {
const parsedValue = JSON.parse(originalString);
valueToStore = parsedValue;
} catch (parseError) {
console.error(`Failed to parse string as array for ${parsed.data.key}: ${parseError}`);
// If parsing failed and it's a single value, convert to an array with one item
if (!originalString.includes('[')) {
valueToStore = [originalString];
}
}
} else if (valueToStore !== null) {
// If not a string or array (and not null), convert to an array with one item
valueToStore = [String(valueToStore)];
}
// Ensure the value is an array after all our conversions
if (!Array.isArray(valueToStore)) {
console.error(`Value for ${parsed.data.key} is still not an array, converting to array`);
valueToStore = [String(valueToStore)];
}
}
await configManager.setValue(parsed.data.key, valueToStore);
// Get the updated configuration to show the user
const updatedConfig = await configManager.getConfig();
console.error(`setConfigValue: Successfully set ${parsed.data.key} to ${JSON.stringify(valueToStore)}`);
return {
content: [{
type: "text",
text: `Successfully set ${parsed.data.key} to ${JSON.stringify(valueToStore, null, 2)}\n\nUpdated configuration:\n${JSON.stringify(updatedConfig, null, 2)}`
}],
};
} catch (saveError: any) {
console.error(`Error saving config: ${saveError.message}`);
// Continue with in-memory change but report error
return {
content: [{
type: "text",
text: `Value changed in memory but couldn't be saved to disk: ${saveError.message}`
}],
isError: true
};
}
} catch (error) {
console.error(`Error in setConfigValue: ${error instanceof Error ? error.message : String(error)}`);
console.error(error instanceof Error && error.stack ? error.stack : 'No stack trace available');
return {
content: [{
type: "text",
text: `Error setting value: ${error instanceof Error ? error.message : String(error)}`
}],
isError: true
};
}
}
