From 8451e7b8a3754d82f70ae13a58c3c12408205f12 Mon Sep 17 00:00:00 2001
From: Idriss Neumann <idriss.neumann@comwork.io>
Date: Tue, 28 Nov 2023 08:20:25 +0100
Subject: [PATCH] Issue #18: add queryParser module

---
 package-lock.json  | 24 ++++++++++++++++++++++++
 package.json       |  2 ++
 src/queryParser.ts | 15 +++++++++++++++
 3 files changed, 41 insertions(+)
 create mode 100644 src/queryParser.ts

diff --git a/package-lock.json b/package-lock.json
index 940b05c..e7ebbb0 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -15,6 +15,7 @@
         "@grafana/runtime": "9.5.14",
         "@grafana/ui": "9.5.14",
         "@reduxjs/toolkit": "^1.9.5",
+        "lucene": "^2.1.1",
         "react": "17.0.2",
         "react-dom": "17.0.2",
         "tslib": "2.5.3"
@@ -34,6 +35,7 @@
         "@testing-library/user-event": "^14.4.3",
         "@types/jest": "^29.5.0",
         "@types/lodash": "^4.14.194",
+        "@types/lucene": "^2.1.7",
         "@types/node": "^18.15.11",
         "@types/react": "17.0.42",
         "@types/react-dom": "17.0.14",
@@ -5720,6 +5722,12 @@
       "dev": true,
       "license": "MIT"
     },
+    "node_modules/@types/lucene": {
+      "version": "2.1.7",
+      "resolved": "https://registry.npmjs.org/@types/lucene/-/lucene-2.1.7.tgz",
+      "integrity": "sha512-i3J0OV0RoJSskOJUa76Hgz09deabWwfJajsUxc1M05HryjPpPEKqtRklKe0+O0XVhdrFIiFO1/SInXpDCacfNA==",
+      "dev": true
+    },
     "node_modules/@types/node": {
       "version": "18.16.9",
       "resolved": "https://registry.npmjs.org/@types/node/-/node-18.16.9.tgz",
@@ -13201,6 +13209,11 @@
         "node": ">=10"
       }
     },
+    "node_modules/lucene": {
+      "version": "2.1.1",
+      "resolved": "https://registry.npmjs.org/lucene/-/lucene-2.1.1.tgz",
+      "integrity": "sha512-l0qCX+pgXEZh/7sYQNG+vzhOIFRPjlJJkQ/irk9n7Ak3d+1MrU6F7IV31KILwFkUn153oLK8a2AIt48DzLdVPg=="
+    },
     "node_modules/lz-string": {
       "version": "1.4.4",
       "resolved": "https://registry.npmjs.org/lz-string/-/lz-string-1.4.4.tgz",
@@ -23326,6 +23339,12 @@
       "integrity": "sha512-r22s9tAS7imvBt2lyHC9B8AGwWnXaYb1tY09oyLkXDs4vArpYJzw09nj8MLx5VfciBPGIb+ZwG0ssYnEPJxn/g==",
       "dev": true
     },
+    "@types/lucene": {
+      "version": "2.1.7",
+      "resolved": "https://registry.npmjs.org/@types/lucene/-/lucene-2.1.7.tgz",
+      "integrity": "sha512-i3J0OV0RoJSskOJUa76Hgz09deabWwfJajsUxc1M05HryjPpPEKqtRklKe0+O0XVhdrFIiFO1/SInXpDCacfNA==",
+      "dev": true
+    },
     "@types/node": {
       "version": "18.16.9",
       "resolved": "https://registry.npmjs.org/@types/node/-/node-18.16.9.tgz",
@@ -28556,6 +28575,11 @@
         "yallist": "^4.0.0"
       }
     },
+    "lucene": {
+      "version": "2.1.1",
+      "resolved": "https://registry.npmjs.org/lucene/-/lucene-2.1.1.tgz",
+      "integrity": "sha512-l0qCX+pgXEZh/7sYQNG+vzhOIFRPjlJJkQ/irk9n7Ak3d+1MrU6F7IV31KILwFkUn153oLK8a2AIt48DzLdVPg=="
+    },
     "lz-string": {
       "version": "1.4.4",
       "resolved": "https://registry.npmjs.org/lz-string/-/lz-string-1.4.4.tgz",
diff --git a/package.json b/package.json
index 84818f3..1c974aa 100644
--- a/package.json
+++ b/package.json
@@ -32,6 +32,7 @@
     "@testing-library/user-event": "^14.4.3",
     "@types/jest": "^29.5.0",
     "@types/lodash": "^4.14.194",
+    "@types/lucene": "^2.1.7",
     "@types/node": "^18.15.11",
     "@types/react": "17.0.42",
     "@types/react-dom": "17.0.14",
@@ -66,6 +67,7 @@
     "@grafana/runtime": "9.5.14",
     "@grafana/ui": "9.5.14",
     "@reduxjs/toolkit": "^1.9.5",
+    "lucene": "^2.1.1",
     "react": "17.0.2",
     "react-dom": "17.0.2",
     "tslib": "2.5.3"
diff --git a/src/queryParser.ts b/src/queryParser.ts
new file mode 100644
index 0000000..4537354
--- /dev/null
+++ b/src/queryParser.ts
@@ -0,0 +1,15 @@
+import lucene from 'lucene';
+
+function normalizeQuery(query: string) {
+    return query.replace(/(\w+)\s(:)/gi, '$1$2');
+}
+
+function parseQuery(query: string) {
+    try {
+      return lucene.parse(normalizeQuery(query));
+    } catch (e) {
+      return null;
+    }
+}
+
+export default parseQuery;