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Main/Library.c

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+/************************************************************************
+ * LES10A110 Principles of C-programming
+ * Name: Trieu Huynh Ba Nguyen
+ * Student number: 000405980
+ * Email: Trieu.Huynh.Ba.Nguyen@student.lut.fi
+ * Date: 16.04.2022
+ * By submitting this work for evaluation, I certify that
+ * 1) I myself wrote all the code in this file
+ * 2) I have not given this code to anyone else
+ *
+ *************************************************************************/
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <math.h>
+
+// Electric struct, with each attribute corresponds to each column in the csv file
+
+struct Electric
+{
+    char timestamp[20];
+    int week;
+    long int consumption;
+    long int solar;
+    long int wind;
+    long int hydro;
+    long int nuclear;
+    long int chp;
+    long int thermal;
+};
+typedef struct Electric electric;
+
+// Node struct for linked list
+
+struct Node
+{
+    electric data;
+    struct Node *next;
+};
+typedef struct Node node;
+
+// Add new node to linked list
+
+node *addNode(node *p_first, node *p_last, electric data)
+{
+    node *new = (node *)malloc(sizeof(node));
+    new->data = data;
+    new->next = NULL;
+    if (p_first == NULL)
+    {
+        p_last = new;
+    }
+    else
+    {
+        p_last->next = new;
+        p_last = new;
+    }
+    return (p_last);
+}
+
+// Print linked list function, implemented for testing, not in use
+
+// void print(node *p_first, char name[])
+// {
+//     FILE *f;
+//     f = fopen(name, "w");
+//     for (node *itr = p_first; itr != NULL; itr = itr->next)
+//     {
+//         if (itr->data.timestamp != NULL && itr->next->data.timestamp != NULL)
+//             fprintf(f, "%s %d\n", itr->data.timestamp, itr->data.consumption);
+//     }
+//     fclose(f);
+
+//     return;
+// }
+
+// Clear linked list function
+
+node *clear(node *p_first)
+{
+    node *itr = p_first;
+    while (itr != NULL)
+    {
+        p_first = itr->next;
+        free(itr);
+        itr = p_first;
+    }
+    return (p_first);
+}
+
+// Consumption function to calculate total, average, highest and lowest consumption. The function iterates through the linked list, summing comparing all consumption values
+
+void consumption(node *p_first, int count)
+{
+    long long int total = 0;
+    FILE *f, *h;
+    node *max = p_first;
+    node *min = p_first;
+    char line[1024];
+    f = fopen("consumption.txt", "w");
+    for (node *itr = p_first; itr != NULL; itr = itr->next)
+    {
+        if (itr->data.timestamp != NULL && itr->next->data.timestamp != NULL)
+        {
+            total += itr->data.consumption;
+            if (max->data.consumption < itr->next->data.consumption)
+            {
+                max = itr;
+            }
+            if (min->data.consumption > itr->data.consumption)
+            {
+                min = itr;
+            }
+        }
+    }
+    // Remove extra zeros from timestamp
+    char maxtime[20], mintime[20];
+    strcpy(maxtime, max->data.timestamp);
+    strcpy(mintime, min->data.timestamp);
+    memmove(&maxtime[3], &maxtime[4], strlen(maxtime) - 3);
+    memmove(&maxtime[10], &maxtime[11], strlen(maxtime) - 10);
+    memmove(&mintime[3], &mintime[4], strlen(mintime) - 3);
+    memmove(&mintime[10], &mintime[11], strlen(mintime) - 10);
+    fprintf(f, "Statistics on %d measurements:\n", count);
+    fprintf(f, "Consumption totaled %lld kWh, and averaged %.1f kWh.\n", total, ((double)total) / ((double)count));
+    fprintf(f, "The highest consumption, %ld kWh, occurred on %s.\n", max->data.consumption, maxtime);
+    fprintf(f, "The lowest consumption, %ld kWh, occurred on %s.", min->data.consumption, mintime);
+    fclose(f);
+    h = fopen("consumption.txt", "r");
+    while (fgets(line, 1024, h) != NULL)
+    {
+        printf("%s", line);
+    }
+    printf("\n");
+    fclose(h);
+}
+
+// Production function iterates thorugh the linked list and sums the total production per week for all types of electricity production
+
+void production(node *p_first)
+{
+    FILE *f;
+    long double solar = 0, wind = 0, hydro = 0, nuclear = 0, chp = 0, thermal = 0;
+    f = fopen("production.csv", "w");
+    fprintf(f, "Week;Solar power;Wind power;Hydropower;Nuclear power;CHP;Thermal power\n");
+    int week;
+    for (node *itr = p_first; itr != NULL; itr = itr->next)
+    {
+        if (itr->next->data.timestamp != NULL)
+        {
+            week = itr->data.week;
+            solar += ((long double)itr->data.solar) / 1000000;
+            wind += ((long double)itr->data.wind) / 1000000;
+            hydro += ((long double)itr->data.hydro) / 1000000;
+            nuclear += ((long double)itr->data.nuclear) / 1000000;
+            chp += ((long double)itr->data.chp) / 1000000;
+            thermal += ((long double)itr->data.thermal) / 1000000;
+            if (week != itr->next->data.week)
+            {
+                fprintf(f, "Week %d;%.2Lf;%.2Lf;%.2Lf;%.2Lf;%.2Lf;%.2Lf\n", week, solar, wind, hydro, nuclear, chp, thermal);
+                solar = 0;
+                wind = 0;
+                hydro = 0;
+                nuclear = 0;
+                chp = 0;
+                thermal = 0;
+            }
+        }
+        else
+        {
+            fprintf(f, "Week %d;%.2Lf;%.2Lf;%.2Lf;%.2Lf;%.2Lf;%.2Lf\n", week, solar, wind, hydro, nuclear, chp, thermal);
+        }
+    }
+    fclose(f);
+}