MCPX MCP Gateway

// src/loadScenario.ts import fs from 'fs'; import path from 'path'; import yaml from 'js-yaml'; import { Scenario, Step } from './types'; import { parseAiAgentRequirement } from './aiAgents'; /** * Load and validate a scenario.yaml file. */ export function loadScenario(scenarioDir: string): Scenario { const file = path.join(scenarioDir, 'scenario.yaml'); if (!fs.existsSync(file)) throw new Error(`Missing ${file}`); const raw = yaml.load(fs.readFileSync(file, 'utf8')) as any; // --- basic structural checks ------------------------------------------- if (!raw.image) throw new Error('scenario.image is required'); if (!Array.isArray(raw.steps) || raw.steps.length === 0) { throw new Error('scenario.steps must be a non-empty array'); } const steps: Step[] = raw.steps.map((s: any, idx: number) => { if (!s.kind || !s.toolName || !s.payload || !s.expected) { throw new Error(`step #${idx} is missing required fields`); } return { name: s.name, kind: s.kind, toolName: s.toolName, baseUrl: s.baseUrl, payload: s.payload, expected: s.expected, expectError: s.expectError ?? false, verboseOutput: s.verboseOutput, }; }); const scenario: Scenario = { name: raw.name, image: raw.image, env: raw.env, configMount: raw.configMount, cleanConfigMount: raw.cleanConfigMount ?? false, dependentContainers: raw.dependentContainers, cleanup: raw.cleanup, steps, verboseOutput: raw.verboseOutput ?? false, disableTest: raw.disableTest ?? false, expectErrorsOnStartup: raw.expectErrorsOnStartup ?? false, aiAgent: parseAiAgentRequirement(raw.aiAgent), }; return scenario; } // If this file is run directly via ts-node, load & dump the scenario: if (require.main === module) { const scenarioDir = process.argv[2]; if (!scenarioDir) { console.error('Usage: ts-node src/loadScenario.ts <scenario-folder>'); process.exit(1); } try { const cfg = loadScenario(scenarioDir); console.log('✅ Loaded scenario:'); console.log(JSON.stringify(cfg, null, 2)); } catch (err: any) { console.error('❌ Failed to load scenario:', err.message); process.exit(1); } }