renamed

Pt9_1-7Bmi/exerciseCalculator.ts

@@ -0,0 +1,39 @@
+interface calculateExerciseResult {
+  periodLength: number;
+  trainingDays: number;
+  success: boolean;
+  rating: number;
+  ratingDescription: string;
+  target: number;
+  average: number;
+}
+export const calculateExercise = (
+  dailyExecise: number[],
+  target: number
+): calculateExerciseResult => {
+  const average =
+    dailyExecise.reduce((prev, cur) => prev + cur) / (dailyExecise.length + 1);
+  const success = average >= target ? true : false;
+
+  let rating: number, ratingDescription: string;
+  if (average > target) {
+    rating = 3;
+    ratingDescription = "Good job";
+  } else if (average > target * 0.7) {
+    rating = 2;
+    ratingDescription = "Could be better";
+  } else {
+    rating = 1;
+    ratingDescription = "Very Bad";
+  }
+
+  return {
+    periodLength: dailyExecise.length + 1,
+    trainingDays: dailyExecise.filter((el) => el > 0).length,
+    average,
+    target,
+    success,
+    rating,
+    ratingDescription,
+  };
+};