First commit

src/estimator.php

@@ -1,6 +1,151 @@
 <?php
+$data_json = '{
+ "region": {
+     "name": "Africa",
+     "avgAge": 19.7,
+     "avgDailyIncomeInUSD": 5,
+     "avgDailyIncomePopulation": 0.71
+ },
+ "periodType": "days",
+ "timeToElapse": 58,
+ "reportedCases": 674,
+ "population": 66622705,
+ "totalHospitalBeds": 1380614
+}';
+
+$data1 = json_decode($data_json, true);
+
+
+
+function currentlyInfected($reportedCases)
+{
+  $value=$reportedCases * 10;
+  return (int)$value;
+}
+
+function currentlyInfectedSevereImpact($reportedCases)
+{
+  $value=$reportedCases * 50;
+  return (int)$value;
+}
+
+function infectionsByRequestedTime($currentlyInfected, $periodType)
+{
+  switch ($periodType){
+    case "days":
+          $value=$currentlyInfected * (2**0.3214) * 1;
+    case "weeks":
+          $value=$currentlyInfected * (2**0.3214) * 7;
+    case "months":
+          $value=$currentlyInfected * (2**0.3214) * 30;
+  }
+  return (int)$value;
+}
+
+function infectionsByRequestedTimeSevereImpact($currentlyInfectedSevereImpact, $periodType)
+{
+  switch ($periodType){
+    case "days":
+          $value=$currentlyInfectedSevereImpact * (2**0.3214) * 1;
+    case "weeks":
+          $value=$currentlyInfectedSevereImpact * (2**0.3214) * 7;
+    case "months":
+          $value=$currentlyInfectedSevereImpact * (2**0.3214) * 30;
+  }
+  return (int)$value;
+}
+
+function severeCasesByRequestedTime($infectionsByRequestedTime)
+{
+  $value=($infectionsByRequestedTime * 15)/100;
+  return (int)$value;
+}
+
+function severeCasesByRequestedTimeSevereImpact($infectionsByRequestedTimeSevereImpact)
+{
+  $value=($infectionsByRequestedTimeSevereImpact * 15)/100;
+  return (int)$value;
+}
+
+function hospitalBedsByRequestedTime($severeCasesByRequestedTime, $totalHospitalBeds)
+{
+  $value = $totalHospitalBeds - (0.35*$severeCasesByRequestedTime);
+  return (int)$value;
+}
+
+function hospitalBedsByRequestedTimeSevereImpact($severeCasesByRequestedTimeSevereImpact, $totalHospitalBeds)
+{
+  $value = $totalHospitalBeds - (0.35*$severeCasesByRequestedTimeSevereImpact);
+  return (int)$value;
+}
+
+function casesForICUByRequestedTime($infectionsByRequestedTime)
+{
+  $value = $infectionsByRequestedTime * 0.05;
+  return (int)$value;
+}
+
+function casesForICUByRequestedTimeSevereImpact($infectionsByRequestedTimeSevereImpact)
+{
+  $value = $infectionsByRequestedTimeSevereImpact * 0.05;
+  return (int)$value;
+}
+
+function casesForVentilatorsByRequestedTime($infectionsByRequestedTime)
+{
+  $value = $infectionsByRequestedTime * 0.02;
+  return (int)$value;
+}
+
+function casesForVentilatorsByRequestedTimeSevereImpact($infectionsByRequestedTimeSevereImpact)
+{
+  $value = $infectionsByRequestedTimeSevereImpact * 0.02;
+  return (int)$value;
+}
+
+function dollarsInFlight($infectionsByRequestedTime)
+{
+  $value = $infectionsByRequestedTime * 0.65 * 1.5 * 30;
+  return round($value,2);
+  //return $value;
+
+}
+
+function dollarsInFlightSevereImpact($infectionsByRequestedTimeSevereImpact)
+{
+  $value = $infectionsByRequestedTimeSevereImpact * 0.65 * 1.5 * 30;
+  return round($value,2);
+
+}
+
 
 function covid19ImpactEstimator($data)
 {
-  return $data;
-}
+
+
+  $impact = array(
+    'currentlyInfected'=>currentlyInfected($data['reportedCases']),
+    'infectionsByRequestedTime'=>infectionsByRequestedTime(currentlyInfected($data['reportedCases']),$data['periodType']),
+    'severeCasesByRequestedTime'=>severeCasesByRequestedTime(infectionsByRequestedTime(currentlyInfected($data['reportedCases']),$data['periodType'])),
+    'casesForICUByRequestedTime'=>casesForICUByRequestedTime(infectionsByRequestedTime(currentlyInfected($data['reportedCases']),$data['periodType'])),
+    'hospitalBedsByRequestedTime'=>hospitalBedsByRequestedTime(severeCasesByRequestedTime(infectionsByRequestedTime(currentlyInfected($data['reportedCases']),$data['periodType'])),$data['totalHospitalBeds']),
+    'casesForVentilatorsByRequestedTime'=>casesForVentilatorsByRequestedTime(infectionsByRequestedTime(currentlyInfected($data['reportedCases']),$data['periodType'])),
+    'dollarsInFlight'=>dollarsInFlight(infectionsByRequestedTime(currentlyInfected($data['reportedCases']),$data['periodType'])),
+  );
+  $severeImpact = array(
+    'currentlyInfected'=>currentlyInfectedSevereImpact($data['reportedCases']),
+    'infectionsByRequestedTime'=>infectionsByRequestedTimeSevereImpact(currentlyInfectedSevereImpact($data['reportedCases']),$data['periodType']),
+    'severeCasesByRequestedTime'=>severeCasesByRequestedTimeSevereImpact(infectionsByRequestedTimeSevereImpact(currentlyInfectedSevereImpact($data['reportedCases']),$data['periodType'])),
+    'hospitalBedsByRequestedTime'=>hospitalBedsByRequestedTimeSevereImpact(severeCasesByRequestedTimeSevereImpact(infectionsByRequestedTimeSevereImpact(currentlyInfectedSevereImpact($data['reportedCases']),$data['periodType'])),$data['totalHospitalBeds']),
+    'casesForICUByRequestedTime'=>casesForICUByRequestedTimeSevereImpact(infectionsByRequestedTimeSevereImpact(currentlyInfectedSevereImpact($data['reportedCases']),$data['periodType'])),
+    'casesForVentilatorsByRequestedTime'=>casesForVentilatorsByRequestedTimeSevereImpact(infectionsByRequestedTimeSevereImpact(currentlyInfectedSevereImpact($data['reportedCases']),$data['periodType'])),
+    'dollarsInFlight'=>dollarsInFlightSevereImpact(infectionsByRequestedTimeSevereImpact(currentlyInfectedSevereImpact($data['reportedCases']),$data['periodType'])),
+  );
+
+
+  return array(
+    'data' => $data,
+    'impact' => $impact,
+    'severeImpact' => $severeImpact,
+  );
+}