From fda984fc02577779e84113e463d7fb660ebefdb7 Mon Sep 17 00:00:00 2001
From: Shams mosowi <shams.mosowi@gmail.com>
Date: Thu, 16 Jul 2020 00:35:19 +1000
Subject: [PATCH] generate config

---
 .../functions/src/generateConfig.ts           | 65 +++++++++++++++++--
 1 file changed, 61 insertions(+), 4 deletions(-)

diff --git a/cloud_functions/functions/src/generateConfig.ts b/cloud_functions/functions/src/generateConfig.ts
index 2ab3dc83..6cf7083c 100644
--- a/cloud_functions/functions/src/generateConfig.ts
+++ b/cloud_functions/functions/src/generateConfig.ts
@@ -1,7 +1,64 @@
 const fs = require("fs");
+// Initialize Firebase Admin
+import * as admin from "firebase-admin";
+// Initialize Firebase Admin
+//const serverTimestamp = admin.firestore.FieldValue.serverTimestamp;
 
-const main = configString => {
-  fs.writeFileSync("./src/functionConfig.ts", `export default ${configString}`);
-};
+const serviceAccount = requireIfExists("../firebase-credentials.json");
 
-main(process.argv[2]);
+function requireIfExists(module) {
+  try {
+    return require(module);
+  } catch (error) {
+    console.log("serviceAccount json not found");
+    return false;
+  }
+}
+if (serviceAccount) {
+  console.log(`Running on ${serviceAccount.project_id}`);
+  admin.initializeApp({
+    credential: admin.credential.cert(serviceAccount),
+    databaseURL: `https://${serviceAccount.project_id}.firebaseio.com`,
+  });
+
+  const db = admin.firestore();
+  const main = async (functionType: string, configString: string) => {
+    let configData;
+    switch (functionType) {
+      case "FT_derivatives":
+        const schemaDoc = await db
+          .doc(`_FIRETABLE_/settings/schema/${configString}`)
+          .get();
+        const schemaData = schemaDoc.data();
+        if (!schemaData) return;
+        const derivativeColumns = Object.values(schemaData.columns).filter(
+          (col: any) => col.type === "DERIVATIVE"
+        );
+        console.log(derivativeColumns);
+
+        const config = derivativeColumns.reduce((acc, currColumn: any) => {
+          return `${acc}{
+            fieldName:'${currColumn.key}',eval:(db)=> async (row) =>{${
+            currColumn.config.script
+          }},listenerFields:[${currColumn.config.listenerFields
+            .map(f => `"${f}"`)
+            .join(",")}]},`;
+        }, ``);
+
+        configData = `export default [${config}]\nexport const collectionPath ="${configString}"`;
+        break;
+      default:
+        configData = `export default ${configString}`;
+        break;
+    }
+    fs.writeFileSync("./src/functionConfig.ts", configData);
+    return;
+  };
+
+  main(process.argv[2], process.argv[3])
+    .catch(err => console.log(err))
+    .then(() => console.log("this will succeed"))
+    .catch(() => "obligatory catch");
+} else {
+  console.log("did not run generator");
+}