Add function that maps building number to datastream ID

public/js/appChart.js

@@ -6,6 +6,72 @@
 
 const BASE_URL = "http://193.196.39.91:8080/frost-icity-tp31/v1.1";
 
+const getDatastreamIdFromBuildingNumber = function (
+  buildingNumber,
+  phenomenon,
+  samplingRate
+) {
+  // Ensure that building number passed here is numeric
+  if (!Number.isInteger(buildingNumber)) return;
+
+  const buildingToDatastreamMapping = {
+    101: {
+      vl: { "15min": "69", "60min": "75" },
+      rl: { "15min": "81", "60min": "87" },
+      flow: { "15min": "93", "60min": "99" },
+      power: { "15min": "105", "60min": "111" },
+      energy: { "15min": "117", "60min": "123" },
+      energy_verb: { "15min": "129", "60min": "135" },
+    },
+    102: {
+      vl: { "15min": "70", "60min": "76" },
+      rl: { "15min": "82", "60min": "88" },
+      flow: { "15min": "94", "60min": "100" },
+      power: { "15min": "106", "60min": "112" },
+      energy: { "15min": "118", "60min": "124" },
+      energy_verb: { "15min": "130", "60min": "136" },
+    },
+    107: {
+      vl: { "15min": "71", "60min": "77" },
+      rl: { "15min": "83", "60min": "89" },
+      flow: { "15min": "95", "60min": "101" },
+      power: { "15min": "107", "60min": "113" },
+      energy: { "15min": "119", "60min": "125" },
+      energy_verb: { "15min": "131", "60min": "137" },
+    },
+    "112_118": {
+      vl: { "15min": "72", "60min": "78" },
+      rl: { "15min": "84", "60min": "90" },
+      flow: { "15min": "96", "60min": "102" },
+      power: { "15min": "108", "60min": "114" },
+      energy: { "15min": "120", "60min": "126" },
+      energy_verb: { "15min": "132", "60min": "138" },
+    },
+    125: {
+      vl: { "15min": "73", "60min": "79" },
+      rl: { "15min": "85", "60min": "91" },
+      flow: { "15min": "97", "60min": "103" },
+      power: { "15min": "109", "60min": "115" },
+      energy: { "15min": "121", "60min": "127" },
+      energy_verb: { "15min": "133", "60min": "139" },
+    },
+    225: {
+      vl: { "15min": "74", "60min": "80" },
+      rl: { "15min": "86", "60min": "92" },
+      flow: { "15min": "98", "60min": "104" },
+      power: { "15min": "110", "60min": "116" },
+      energy: { "15min": "122", "60min": "128" },
+      energy_verb: { "15min": "134", "60min": "140" },
+    },
+  };
+
+  const datastreamIdMatched = Number(
+    buildingToDatastreamMapping[buildingNumber][phenomenon][samplingRate]
+  );
+
+  return datastreamIdMatched;
+};
+
 /**
  * Create URL to fetch the Observations corresponding to a provided Datastream
  * @param {Number} datastreamID - Integer representing the Datastream ID