feat: ngrams

firebase.json

@@ -12,5 +12,21 @@
         "destination": "/index.html"
       }
     ]
-  }
+  },
+  "functions": [
+    {
+      "source": "functions",
+      "codebase": "default",
+      "ignore": [
+        "node_modules",
+        ".git",
+        "firebase-debug.log",
+        "firebase-debug.*.log"
+      ],
+      "predeploy": [
+        "npm --prefix \"$RESOURCE_DIR\" run lint",
+        "npm --prefix \"$RESOURCE_DIR\" run build"
+      ]
+    }
+  ]
 }

functions/.eslintrc.js

@@ -0,0 +1,29 @@
+module.exports = {
+  root: true,
+  env: {
+    es6: true,
+    node: true,
+  },
+  extends: [
+    'eslint:recommended',
+    'plugin:import/errors',
+    'plugin:import/warnings',
+    'plugin:import/typescript',
+    'google',
+    'plugin:@typescript-eslint/recommended',
+  ],
+  parser: '@typescript-eslint/parser',
+  parserOptions: {
+    project: ['tsconfig.json', 'tsconfig.dev.json'],
+    sourceType: 'module',
+  },
+  ignorePatterns: [
+    '/lib/**/*', // Ignore built files.
+  ],
+  plugins: ['@typescript-eslint', 'import'],
+  rules: {
+    quotes: ['error', 'double'],
+    'import/no-unresolved': 0,
+    indent: ['error', 2],
+  },
+};

functions/.gitignore

@@ -0,0 +1,9 @@
+# Compiled JavaScript files
+lib/**/*.js
+lib/**/*.js.map
+
+# TypeScript v1 declaration files
+typings/
+
+# Node.js dependency directory
+node_modules/

functions/.tool-versions

@@ -0,0 +1 @@
+nodejs 18.20.3