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C/C1/bike_math.c

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+#include "bike_math.h"
+#include "bike_store.h"
+
+uint16_t bikeMathGetValueForDataType(bikeStoreMeasurement measurement, bikeDataType data_type) {
+    uint16_t value = 0;
+
+    if (data_type == BIKECADENCE) {
+    value = measurement.cadence;
+    } else if (data_type == BIKESPEED) {
+    value = measurement.speed;
+    } else if (data_type == BIKEHEARTRATE) {
+    value = measurement.heartRate;
+    } else if (data_type == BIKEPOWER) {
+    value = measurement.power;
+    }
+
+    return value;
+}
+
+uint16_t bikeMathCalculateMinValue(bikeDataType data_type) {
+    uint16_t number_of_measurements = bikeStoreGetNumberOfMeasurementsPresent();
+
+    uint16_t min_value = UINT16_MAX;
+
+    for (uint16_t index_position = 0; index_position < number_of_measurements; index_position++) {
+        bikeStoreMeasurement measurement = bikeStoreGetMeasurement(index_position);
+        uint16_t value = bikeMathGetValueForDataType(measurement, data_type);
+        if (value < min_value) {
+        min_value = value;
+        }
+    }
+
+    return min_value;
+}
+
+uint16_t bikeMathCalculateMaxValue(bikeDataType data_type) {
+    uint16_t number_of_measurements = bikeStoreGetNumberOfMeasurementsPresent();
+
+    uint16_t max_value = 0;
+
+    for (uint16_t index_position = 0; index_position < number_of_measurements; index_position++) {
+        bikeStoreMeasurement measurement = bikeStoreGetMeasurement(index_position);
+        uint16_t value = bikeMathGetValueForDataType(measurement, data_type);
+        if (value > max_value) {
+            max_value = value;
+        }
+    }
+
+    return max_value;
+}
+
+uint16_t bikeMathCalculateAverageValue(bikeDataType data_type) {
+    uint16_t number_of_measurements = bikeStoreGetNumberOfMeasurementsPresent();
+
+    if (number_of_measurements == 0) return 0;
+
+    uint16_t average = 0;
+    uint32_t sum = 0;
+
+    for (uint16_t index_position = 0; index_position < number_of_measurements; index_position++) {
+        bikeStoreMeasurement measurement = bikeStoreGetMeasurement(index_position);
+        uint16_t value = bikeMathGetValueForDataType(measurement, data_type);
+        sum += value;
+    }
+
+    average = sum / number_of_measurements;
+
+    return average;
+}