From 28c8331103b20b19a7b145cb46fcab55b9027eab Mon Sep 17 00:00:00 2001
From: Martin McKeaveney <martin@shogunsystems.co.uk>
Date: Thu, 20 Aug 2020 16:31:43 +0100
Subject: [PATCH] start of view filters

---
 .../src/api/controllers/view/viewBuilder.js   | 36 +++++++++++++++++++
 1 file changed, 36 insertions(+)

diff --git a/packages/server/src/api/controllers/view/viewBuilder.js b/packages/server/src/api/controllers/view/viewBuilder.js
index 1c8cc49b03..2c2b2f9b62 100644
--- a/packages/server/src/api/controllers/view/viewBuilder.js
+++ b/packages/server/src/api/controllers/view/viewBuilder.js
@@ -1,9 +1,45 @@
+const TOKEN_MAP = {
+  EQUALS: "===",
+  LT: "<",
+  LTE: "<=",
+  MT: ">",
+  MTE: ">=",
+  CONTAINS: "includes()",
+  AND: "&&",
+  OR: "||"
+}
+
+function parseFilters(filters) {
+  const expression = filters.map(filter => {
+    if (filter.conjunction) return TOKEN_MAP[filter.conjunction];
+    
+    return `doc["${filter.key}"] ${TOKEN_MAP[filter.condition]} "${filter.value}"`
+  })
+  
+  return expression.join(" ")
+}
+
 function statsViewTemplate({ field, modelId, groupBy }) {
   return {
     meta: {
       field,
       modelId,
       groupBy,
+      filter: [
+        {
+          key: "Status",
+          condition: "Equals",
+          value: "VIP",
+        },
+        {
+          conjunction: "AND"
+        },
+        {
+          key: "Status",
+          condition: "Equals",
+          value: "VIP",
+        }
+      ],
       schema: {
         sum: "number",
         min: "number",