Updated book store data and display it and add it

data/books.txt

@@ -6,4 +6,20 @@ My Fouth Book
 111-000-000
 My Fifth Book
 2 Zero
+222-000-000My Third Book
+Zero 1
+000-000-111
+My Fouth Book
+1 Zero
+111-000-000
+My Fifth Book
+2 Zero
+222-000-000My Third Book
+Zero 1
+000-000-111
+My Fouth Book
+1 Zero
+111-000-000
+My Fifth Book
+2 Zero
 222-000-000

runBook

@@ -0,0 +1,3 @@
+#!/bin/bash
+
+gcc tests/bookNode.c -o bookNode.bin && ./bookNode.bin

tests/bookNode.c

@@ -17,88 +17,24 @@ BOOK *head;
 void add_book(char *title, char *author, char *isbn);
 void display();
 int count();
+void add_book_data();
 void save_book_data(struct book *data);
+void read_file_to_data();
+void print_data(BOOK *data);
 
 int main()
 {
     head = NULL;
-    add_book("My Third Book", "Zero 1", "000-000-111");
-    add_book("My Fouth Book", "1 Zero", "111-000-000");
-    add_book("My Fifth Book", "2 Zero", "222-000-000");
-
-    int i;
-    file = fopen("./data/books.txt", "a+");
-
-    if (file == NULL)
-    {
-        printf("Error: addressbook.dat could not be opened.\n");
-        return EXIT_FAILURE;
-    }
-
-    // char title[20];
-    // char author[20];
-    // char isbn[20];
-
-    // while (!feof(file))
-    // {
-    //     fgets(title, 20, file);
-    //     fgets(author, 20, file);
-    //     fgets(isbn, 20, file);
-
-    //     // Removes newline characters from the ends of the names
-    //     i = 0;
-
-    //     while (title[i] != '\n')
-    //     {
-    //         i++;
-    //     }
-
-    //     title[i] = '\0';
-
-    //     i = 0;
-
-    //     while (author[i] != '\n')
-    //     {
-    //         i++;
-    //     }
-
-    //     author[i] = '\0';
-
-    //     // Adds the entry from the strings with the file data in them
-    //     add_book(title, author, isbn);
-    // }
-
-    BOOK *temp;
-    temp = head;
-
-    fputs(temp->title, file);
-    fputs("\n", file);
-    fputs(temp->author, file);
-    fputs("\n", file);
-    fputs(temp->isbn, file);
-
-    while (temp->next != NULL)
-    {
-        temp = temp->next;
-        fputs("\n", file);
-        fputs(temp->title, file);
-        fputs("\n", file);
-        fputs(temp->author, file);
-        fputs("\n", file);
-        fputs(temp->isbn, file);
-    }
-
-    // close the file
-    fclose(file);
-
-    // save book data
-    // save_book_data(head);
-
-    // display();
 
     int countEntries = count();
     printf("There are %d entries\n", countEntries);
 
+    // add book data
+    add_book_data();
+    
+    // display the books
+    display();
+
     return EXIT_SUCCESS;
 }
 
@@ -147,6 +83,45 @@ int count()
     return n;
 }
 
+void add_book_data()
+{
+    add_book("My Third Book", "Zero 1", "000-000-111");
+    add_book("My Fouth Book", "1 Zero", "111-000-000");
+    add_book("My Fifth Book", "2 Zero", "222-000-000");
+
+    int i;
+    file = fopen("./data/books.txt", "a+");
+
+    if (file == NULL)
+    {
+        printf("Error: addressbook.dat could not be opened.\n");
+        exit(EXIT_FAILURE);
+    }
+
+    BOOK *temp;
+    temp = head;
+
+    fputs(temp->title, file);
+    fputs("\n", file);
+    fputs(temp->author, file);
+    fputs("\n", file);
+    fputs(temp->isbn, file);
+
+    while (temp->next != NULL)
+    {
+        temp = temp->next;
+        fputs("\n", file);
+        fputs(temp->title, file);
+        fputs("\n", file);
+        fputs(temp->author, file);
+        fputs("\n", file);
+        fputs(temp->isbn, file);
+    }
+
+    // close the file
+    fclose(file);
+}
+
 void save_book_data(struct book *data)
 {
     file = fopen("./data/books.txt", "a+");
@@ -180,4 +155,83 @@ void save_book_data(struct book *data)
 
     fflush(file);
     fclose(file);
+}
+
+void read_file_to_data()
+{
+    // clear head in linked list
+    head = NULL;
+
+    FILE *file;
+
+    file = fopen("./data/books.txt", "r");
+
+    if (file == NULL)
+    {
+        printf("cannot read file!");
+        exit(EXIT_FAILURE);
+    }
+
+    char title[20];
+    char author[20];
+    char isbn[20];
+    int i;
+
+    while (!feof(file))
+    {
+        fgets(title, 20, file);
+        fgets(author, 20, file);
+        fgets(isbn, 20, file);
+
+        i = 0;
+
+        while (title[i] != '\n')
+        {
+            i++;
+        }
+
+        title[i] = '\0';
+
+        i = 0;
+
+        while (author[i] != '\n')
+        {
+            i++;
+        }
+
+        author[i] = '\0';
+
+        add_book(title, author, isbn);
+    }
+
+    fclose(file);
+}
+
+void display()
+{
+    read_file_to_data();
+    print_data(head);
+}
+
+void print_data(BOOK *book)
+{
+    BOOK *temp;
+    temp = book;
+    if (temp == NULL)
+    {
+        printf("book is empty!");
+        return;
+    }
+
+    printf("Book title: %s\n", temp->title);
+    printf("Book author: %s\n", temp->author);
+    printf("Book isbn: %s", temp->isbn);
+
+    while (temp->next != NULL)
+    {
+        temp = temp->next;
+        printf("\nBook title: %s\n", temp->title);
+        printf("Book title: %s\n", temp->title);
+        printf("Book title: %s", temp->title);
+    }
 }