feat(package): add langgraph

package.json

@@ -20,6 +20,7 @@
     "@langchain/core": "^0.3.66",
     "@langchain/google-genai": "^0.2.15",
     "@langchain/groq": "^0.2.3",
+    "@langchain/langgraph": "^0.4.9",
     "@langchain/ollama": "^0.2.3",
     "@langchain/openai": "^0.6.2",
     "@langchain/textsplitters": "^0.1.0",

src/lib/db/migrate.ts

@@ -2,12 +2,9 @@ import Database from 'better-sqlite3';
 import path from 'path';
 import fs from 'fs';
 
-const DATA_DIR = process.env.DATA_DIR || process.cwd();
+const db = new Database(path.join(process.cwd(), 'data', 'db.sqlite'));
-const dbPath = path.join(DATA_DIR, './data/db.sqlite');
 
-const db = new Database(dbPath);
+const migrationsFolder = path.join(process.cwd(), 'drizzle');
-
-const migrationsFolder = path.join(DATA_DIR, 'drizzle');
 
 db.exec(`
   CREATE TABLE IF NOT EXISTS ran_migrations (
@@ -57,7 +54,7 @@ fs.readdirSync(migrationsFolder)
                         id INTEGER PRIMARY KEY,
                         type TEXT NOT NULL,
                         chatId TEXT NOT NULL,
-                        createdAt TEXT NOT NULL DEFAULT CURRENT_TIMESTAMP,
+                        createdAt TEXT NOT NULL,
                         messageId TEXT NOT NULL,
                         content TEXT,
                         sources TEXT DEFAULT '[]'
@@ -70,10 +67,8 @@ fs.readdirSync(migrationsFolder)
                 `);
 
         messages.forEach((msg: any) => {
-          while (typeof msg.metadata === 'string') {
-            msg.metadata = JSON.parse(msg.metadata || '{}');
-          }
           if (msg.type === 'user') {
+            msg.metadata = JSON.parse(msg.metadata || '{}');
             insertMessage.run(
               'user',
               msg.chatId,
@@ -83,6 +78,7 @@ fs.readdirSync(migrationsFolder)
               '[]',
             );
           } else if (msg.type === 'assistant') {
+            msg.metadata = JSON.parse(msg.metadata || '{}');
             insertMessage.run(
               'assistant',
               msg.chatId,

yarn.lock

@@ -661,6 +661,33 @@
     groq-sdk "^0.19.0"
     zod "^3.22.4"
 
+"@langchain/langgraph-checkpoint@^0.1.1":
+  version "0.1.1"
+  resolved "https://registry.yarnpkg.com/@langchain/langgraph-checkpoint/-/langgraph-checkpoint-0.1.1.tgz#500569a02af4b85172d775de63eeba06afa0c189"
+  integrity sha512-h2bP0RUikQZu0Um1ZUPErQLXyhzroJqKRbRcxYRTAh49oNlsfeq4A3K4YEDRbGGuyPZI/Jiqwhks1wZwY73AZw==
+  dependencies:
+    uuid "^10.0.0"
+
+"@langchain/langgraph-sdk@~0.1.0":
+  version "0.1.9"
+  resolved "https://registry.yarnpkg.com/@langchain/langgraph-sdk/-/langgraph-sdk-0.1.9.tgz#5442bd1a4257b5d94927af6e09b0aed341ae8a1d"
+  integrity sha512-7WEDHtbI3pYPUiiHq+dPaF92ZN2W7lqObdpK0X+roa8zPdHUjve/HiqYuKNWS12u1N+L5QIuQWqZvVNvUA7BfQ==
+  dependencies:
+    "@types/json-schema" "^7.0.15"
+    p-queue "^6.6.2"
+    p-retry "4"
+    uuid "^9.0.0"
+
+"@langchain/langgraph@^0.4.9":
+  version "0.4.9"
+  resolved "https://registry.yarnpkg.com/@langchain/langgraph/-/langgraph-0.4.9.tgz#470a238ea98662d6ec9dfc42859a00acad00fc81"
+  integrity sha512-+rcdTGi4Ium4X/VtIX3Zw4RhxEkYWpwUyz806V6rffjHOAMamg6/WZDxpJbrP33RV/wJG1GH12Z29oX3Pqq3Aw==
+  dependencies:
+    "@langchain/langgraph-checkpoint" "^0.1.1"
+    "@langchain/langgraph-sdk" "~0.1.0"
+    uuid "^10.0.0"
+    zod "^3.25.32"
+
 "@langchain/ollama@^0.2.3":
   version "0.2.3"
   resolved "https://registry.yarnpkg.com/@langchain/ollama/-/ollama-0.2.3.tgz#4868e66db4fc480f08c42fc652274abbab0416f0"
@@ -939,6 +966,11 @@
   resolved "https://registry.yarnpkg.com/@types/html-to-text/-/html-to-text-9.0.4.tgz#4a83dd8ae8bfa91457d0b1ffc26f4d0537eff58c"
   integrity sha512-pUY3cKH/Nm2yYrEmDlPR1mR7yszjGx4DrwPjQ702C4/D5CwHuZTgZdIdwPkRbcuhs7BAh2L5rg3CL5cbRiGTCQ==
 
+"@types/json-schema@^7.0.15":
+  version "7.0.15"
+  resolved "https://registry.yarnpkg.com/@types/json-schema/-/json-schema-7.0.15.tgz#596a1747233694d50f6ad8a7869fcb6f56cf5841"
+  integrity sha512-5+fP8P8MFNC+AyZCDxrB2pkZFPGzqQWUzpSeuuVLvm8VMcorNYavBqoFcxK8bQz4Qsbn4oUEEem4wDLfcysGHA==
+
 "@types/json5@^0.0.29":
   version "0.0.29"
   resolved "https://registry.yarnpkg.com/@types/json5/-/json5-0.0.29.tgz#ee28707ae94e11d2b827bcbe5270bcea7f3e71ee"
@@ -5133,7 +5165,7 @@ uuid@^11.1.0:
   resolved "https://registry.yarnpkg.com/uuid/-/uuid-11.1.0.tgz#9549028be1753bb934fc96e2bca09bb4105ae912"
   integrity sha512-0/A9rDy9P7cJ+8w1c9WD9V//9Wj15Ce2MPz8Ri6032usz+NfePxx5AcN3bN+r6ZL6jEo066/yNYB3tn4pQEx+A==
 
-uuid@^9.0.1:
+uuid@^9.0.0, uuid@^9.0.1:
   version "9.0.1"
   resolved "https://registry.yarnpkg.com/uuid/-/uuid-9.0.1.tgz#e188d4c8853cc722220392c424cd637f32293f30"
   integrity sha512-b+1eJOlsR9K8HJpow9Ok3fiWOWSIcIzXodvv0rQjVoOVNpWMpxf1wZNpt4y9h10odCNrqnYp1OBzRktckBe3sA==