semillero-2-AI-ATS/scripts/n8n-kickstart.ts

451 lines
13 KiB
TypeScript

import * as fs from "fs";
import * as path from "path";
// Helper to manually load .env file
function loadEnv() {
const envPath = path.join(__dirname, "../.env");
if (fs.existsSync(envPath)) {
const envContent = fs.readFileSync(envPath, "utf8");
for (const line of envContent.split("\n")) {
const match = line.match(/^\s*([\w.-]+)\s*=\s*(.*)\s*$/);
if (match) {
const key = match[1];
let value = match[2].trim();
if (value.startsWith('"') && value.endsWith('"')) value = value.slice(1, -1);
else if (value.startsWith("'") && value.endsWith("'")) value = value.slice(1, -1);
process.env[key] = value;
}
}
}
}
loadEnv();
const N8N_HOST = process.env.N8N_HOST || "https://n8n.gaboggamer.online";
const N8N_API_KEY = process.env.N8N_API_KEY;
const DEEPSEEK_API_KEY = process.env.DEEPSEEK_API_KEY;
const EMAIL_USER = process.env.EMAIL_USER;
const EMAIL_PASSWORD = process.env.EMAIL_PASSWORD;
const EMAIL_HOST = process.env.EMAIL_HOST;
const EMAIL_PORT = parseInt(process.env.EMAIL_PORT || "465", 10);
const SUPABASE_URL = process.env.NEXT_PUBLIC_SUPABASE_URL;
const SUPABASE_ANON_KEY = process.env.NEXT_PUBLIC_SUPABASE_ANON_KEY;
if (!N8N_API_KEY) {
console.error("Error: N8N_API_KEY is not defined in .env file.");
process.exit(1);
}
// n8n request helper
async function n8nRequest(endpoint: string, method: string = "GET", body?: any) {
const response = await fetch(`${N8N_HOST}${endpoint}`, {
method,
headers: {
"X-N8N-API-KEY": N8N_API_KEY!,
"Content-Type": "application/json",
},
body: body ? JSON.stringify(body) : undefined,
});
if (!response.ok) {
const text = await response.text();
throw new Error(`n8n API request failed: ${response.status} ${response.statusText} - ${text}`);
}
return response.json();
}
async function main() {
console.log("Kickstarting n8n configuration...");
// 1. Manage IMAP Credentials
console.log("Setting up IMAP credentials...");
let credentialId = "";
try {
const credsList = await n8nRequest("/api/v1/credentials");
const existingCred = credsList.data.find((c: any) => c.name === "Semillero2_IMAP" && c.type === "imap");
if (existingCred) {
credentialId = existingCred.id;
console.log(`Reusing existing IMAP credentials (ID: ${credentialId})`);
} else {
const newCred = await n8nRequest("/api/v1/credentials", "POST", {
name: "Semillero2_IMAP",
type: "imap",
data: {
host: EMAIL_HOST,
port: EMAIL_PORT,
user: EMAIL_USER,
password: EMAIL_PASSWORD,
secure: true,
},
});
credentialId = newCred.id;
console.log(`Created new IMAP credentials (ID: ${credentialId})`);
}
} catch (err: any) {
console.error("Error setting up IMAP credentials:", err.message);
process.exit(1);
}
// 2. Define Workflow 3: Core AI Parsing Sub-workflow
console.log("Deploying Workflow 3: Core AI Parsing Sub-workflow...");
const workflow3Definition = {
name: "Semillero2: Core AI Parsing Sub-workflow",
settings: {},
nodes: [
{
parameters: {},
id: "w3-trigger-id",
name: "Execute Workflow Trigger",
type: "n8n-nodes-base.executeWorkflowTrigger",
typeVersion: 1,
position: [250, 300],
},
{
parameters: {
method: "POST",
url: "https://api.deepseek.com/chat/completions",
sendHeaders: true,
headerParameters: {
parameters: [
{
name: "Authorization",
value: `Bearer ${DEEPSEEK_API_KEY}`,
},
],
},
sendBody: true,
specifyBody: "json",
jsonBody: "={\n \"model\": \"deepseek-chat\",\n \"messages\": [\n {\n \"role\": \"system\",\n \"content\": \"You are an AI recruitment assistant. Analyze the candidate's CV text. You MUST respond with a raw JSON object containing exactly these four keys:\\n- summary: a brief profile summary.\\n- classification: 'Qualified', 'Unqualified', or 'Review'.\\n- suggestions: an array of recommendations for next steps.\\n- riskLevel: 'Low', 'Medium', or 'High'.\\n\\nDo not include markdown code blocks or any text outside the JSON.\"\n },\n {\n \"role\": \"user\",\n \"content\": \"{{ $json.text }}\"\n }\n ],\n \"response_format\": { \"type\": \"json_object\" }\n}",
},
id: "w3-deepseek-id",
name: "Deepseek LLM Parsing",
type: "n8n-nodes-base.httpRequest",
typeVersion: 4.2,
position: [480, 300],
},
{
parameters: {
jsCode: `const content = $input.first().json.choices[0].message.content;
const evaluation = JSON.parse(content);
return [{
json: {
name: $('Execute Workflow Trigger').item.json.name || "Unknown Candidate",
email: $('Execute Workflow Trigger').item.json.email || "unknown@example.com",
summary: evaluation.summary,
classification: evaluation.classification,
suggestions: evaluation.suggestions,
riskLevel: evaluation.riskLevel,
evaluation: evaluation
}
}];`,
},
id: "w3-parse-id",
name: "Parse Deepseek Response",
type: "n8n-nodes-base.code",
typeVersion: 2,
position: [700, 300],
},
{
parameters: {
method: "POST",
url: `${SUPABASE_URL}/rest/v1/candidates`,
sendHeaders: true,
headerParameters: {
parameters: [
{
name: "apikey",
value: SUPABASE_ANON_KEY,
},
{
name: "Authorization",
value: `Bearer ${SUPABASE_ANON_KEY}`,
},
{
name: "Prefer",
value: "return=representation",
},
],
},
sendBody: true,
specifyBody: "json",
jsonBody: "={\n \"name\": \"{{ $json.name }}\",\n \"email\": \"{{ $json.email }}\",\n \"summary\": \"{{ $json.summary }}\",\n \"seniority\": \"{{ $json.classification }}\"\n}",
},
id: "w3-supabase-id",
name: "Insert Candidate to Supabase",
type: "n8n-nodes-base.httpRequest",
typeVersion: 4.2,
position: [920, 300],
},
],
connections: {
"Execute Workflow Trigger": {
main: [
[
{
node: "Deepseek LLM Parsing",
type: "main",
index: 0,
},
],
],
},
"Deepseek LLM Parsing": {
main: [
[
{
node: "Parse Deepseek Response",
type: "main",
index: 0,
},
],
],
},
"Parse Deepseek Response": {
main: [
[
{
node: "Insert Candidate to Supabase",
type: "main",
index: 0,
},
],
],
},
},
};
const w3Result = await n8nRequest("/api/v1/workflows", "POST", workflow3Definition);
const w3Id = w3Result.id;
console.log(`Workflow 3 deployed successfully (ID: ${w3Id})`);
// 3. Define Workflow 1: The API Gateway (Web UI Ingestion)
console.log("Deploying Workflow 1: The API Gateway...");
const workflow1Definition = {
name: "Semillero2: API Gateway (Web UI Ingestion)",
settings: {},
nodes: [
{
parameters: {
path: "parse-cv",
options: {},
},
id: "w1-webhook-id",
name: "Webhook",
type: "n8n-nodes-base.webhook",
typeVersion: 1,
position: [100, 300],
},
{
parameters: {
jsCode: `return $input.first().json.body.candidates.map(c => ({ json: c }));`,
},
id: "w1-extract-id",
name: "Extract Candidates Array",
type: "n8n-nodes-base.code",
typeVersion: 2,
position: [320, 300],
},
{
parameters: {
batchSize: 1,
options: {},
},
id: "w1-loop-id",
name: "Loop Over Candidates",
type: "n8n-nodes-base.splitInBatches",
typeVersion: 3,
position: [540, 300],
},
{
parameters: {
workflowId: w3Id,
options: {},
},
id: "w1-exec-id",
name: "Execute Workflow 3",
type: "n8n-nodes-base.executeWorkflow",
typeVersion: 1,
position: [760, 200],
},
],
connections: {
Webhook: {
main: [
[
{
node: "Extract Candidates Array",
type: "main",
index: 0,
},
],
],
},
"Extract Candidates Array": {
main: [
[
{
node: "Loop Over Candidates",
type: "main",
index: 0,
},
],
],
},
"Loop Over Candidates": {
main: [
[], // Output 0 (Done)
[
{
node: "Execute Workflow 3",
type: "main",
index: 0,
},
], // Output 1 (Loop)
],
},
"Execute Workflow 3": {
main: [
[
{
node: "Loop Over Candidates",
type: "main",
index: 0,
},
],
],
},
},
};
const w1Result = await n8nRequest("/api/v1/workflows", "POST", workflow1Definition);
const w1Id = w1Result.id;
const webhookPath = `${N8N_HOST}/webhook/${w1Id}/webhook/parse-cv`;
console.log(`Workflow 1 deployed successfully (ID: ${w1Id})`);
console.log(`Webhook URL: ${webhookPath}`);
// 4. Define Workflow 2: Email Ingestion Listener
console.log("Deploying Workflow 2: Email Ingestion Listener...");
const workflow2Definition = {
name: "Semillero2: Email Ingestion Listener",
settings: {},
nodes: [
{
parameters: {
postProcessAction: "markAsRead",
format: "resolved",
downloadAttachments: true,
options: {
customEmailConfig: '["UNSEEN"]',
},
},
id: "w2-imap-id",
name: "Email Trigger (IMAP)",
type: "n8n-nodes-base.emailReadImap",
typeVersion: 2,
position: [100, 300],
credentials: {
imap: {
id: credentialId,
name: "Semillero2_IMAP",
},
},
},
{
parameters: {
operation: "pdf",
binaryPropertyName: "attachment_0",
},
id: "w2-extract-id",
name: "Extract From PDF",
type: "n8n-nodes-base.extractFromFile",
typeVersion: 1,
position: [320, 300],
},
{
parameters: {
jsCode: `const item = $input.first().json;
const text = item.text || "";
const emailBody = $('Email Trigger (IMAP)').item.json.textHtml || $('Email Trigger (IMAP)').item.json.text || "";
const fromEmail = $('Email Trigger (IMAP)').item.json.from.value[0].address;
const fromName = $('Email Trigger (IMAP)').item.json.from.value[0].name || fromEmail.split('@')[0];
return [{
json: {
name: fromName,
email: fromEmail,
text: \`Email Body:\\n\${emailBody}\\n\\nResume Text:\\n\${text}\`
}
}];`,
},
id: "w2-format-id",
name: "Format Email Data",
type: "n8n-nodes-base.code",
typeVersion: 2,
position: [540, 300],
},
{
parameters: {
workflowId: w3Id,
options: {},
},
id: "w2-exec-id",
name: "Execute Workflow 3",
type: "n8n-nodes-base.executeWorkflow",
typeVersion: 1,
position: [760, 300],
},
],
connections: {
"Email Trigger (IMAP)": {
main: [
[
{
node: "Extract From PDF",
type: "main",
index: 0,
},
],
],
},
"Extract From PDF": {
main: [
[
{
node: "Format Email Data",
type: "main",
index: 0,
},
],
],
},
"Format Email Data": {
main: [
[
{
node: "Execute Workflow 3",
type: "main",
index: 0,
},
],
],
},
},
};
const w2Result = await n8nRequest("/api/v1/workflows", "POST", workflow2Definition);
console.log(`Workflow 2 deployed successfully (ID: ${w2Result.id})`);
console.log("\n==================================================");
console.log("KICKSTART SETUP COMPLETE.");
console.log("==================================================");
console.log("Use the following curl command to test the API Gateway directly:");
console.log(`curl -X POST -H "Content-Type: application/json" \\
-d '{"source": "web", "candidates": [{"name": "Jane Developer", "email": "jane.dev@example.com", "text": "Jane is a Senior Frontend Engineer with 8 years of experience in React, Next.js, and TypeScript. Extremely qualified."}]}' \\
"${webhookPath}"`);
console.log("==================================================");
}
main().catch((err) => {
console.error("Kickstart script failed:", err);
process.exit(1);
});