Code:
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <ctype.h>
/* Function Prototype for Task Manager */
void TaskAdd();
void TaskMainTask ();
void Taskprint();
void TaskView();
void TaskDelete ();
void TaskDeleteTitle ();
void TaskEmpty (FILE *delPtr, char check[], char data[]);
void TaskPrintFile();
void TaskEdit ();
void TaskEditTitle ();
void TaskChange (FILE *editPtr, char check[],char data[]);
void TaskPreview ();
void TaskLook ();
/*initiate structure for Task Manager*/
struct taskManager { // strat of struct
char title[30];
char details[130];
char startDate[80];
char endDate[80];
}TaskManager; // end of struct and assign struct as TaskManager
int main()
{
TaskMainTask();
}
/*Start of Main Task*/
void TaskMainTask()
{//Start of maintask
int choice; //set interger choice
int counter; // set interger counter
counter = 1; // set counter to 1
while ( counter != 0) { // start while
system("cls");
/*Main Menu*/
printf ("Task Manager\n\n");
printf ("What Do You Want To Do ?\n");
printf ("[1]. Add Task/Project\n");
printf ("[2]. Edit Task/Project\n");
printf ("[3]. View Task/Project\n");
printf ("[4]. Print the Task/Project To a File\n");
printf ("[5]. Delete the Task/Project\n");
printf ("[6]. Back to Main Menu\n");
printf ("[7]. Exit The Program\n");
scanf ("%d", &choice);
/*if entry not valid*/
if (choice < 1 || choice > 8) { // start if
printf ("Entry Not Valid !!\n");
printf ("Please Enter 1-7");
getchar();
}//end If
/*if Entry was valid*/
else { // start else
switch (choice) { // start switch
case 1:
TaskAdd(); // go to add
break;
case 2 :
TaskEdit (); // go to edit
break;
case 3 :
TaskLook(); // go to look
break;
case 4 :
TaskPrintFile(); // go to print_file
break;
case 5 :
TaskDelete (); // go to delete
break;
case 6 :
main_menu();
break;
case 7 :
exit (1); // exit program
break;
} // end switch
}// End Else
} // End While
} // End MainTask
/*adding Task*/
void TaskAdd ()
{ // start of add
FILE *cfPtr;//information.dat file pointer
int choice2;//variable for storing the user choice
char buffer[10];
//fopen opens the file; exits if file cannot be opened
if ((cfPtr = fopen ("Task.dat","ab")) == NULL ){ // start of if
printf ("Filed Could not be Opened\n");
}// end if
/*adding information */
else { // start of else
system ("cls");
printf ("=======Add New Task/Project========\n");
printf ("\nEnter The Title :\n");
gets (buffer);
gets (TaskManager.title);
printf ("\nNotes and Details of The Task/Project (130 Character) : \n");
gets (TaskManager.details);
printf ("\nStart Date ( mm/dd/yy ) : ");
gets (TaskManager.startDate);
printf ("Due Date (mm/dd/yy) : ");
gets (TaskManager.endDate);
/*write the record in the file*/
fwrite (&TaskManager, sizeof(TaskManager), 1 , cfPtr);
fclose (cfPtr); // closes the file
printf ("\nProject Saved\n");
printf ("Press [Enter] To Continue\n");
getchar();
system ("cls");
TaskPreview (); // showing the outcome
printf ("Do You want to Add a New Task ?\n[1].Yes\n[2].No\n");
scanf ("%d", &choice2);
if ( choice2 == 1 ) { // start of if
TaskAdd ();
} // end of if
else if (choice2 == 2) { // start of else if
TaskMainTask ();
}// end of else if
}// end of else
} // end of else
/*Function Preview; Printing the result for the user*/
void TaskPreview ()
{ // start of preview
printf ("%43s\n\n","=====Task Preview=====");
printf ("%30s%15s%15s\n","Title","Start Date","Due Date");
printf ("%30s%15s%15s\n",TaskManager.title, TaskManager.startDate, TaskManager.endDate);
printf ("\n%10s\n%10s\n\n", "Notes / Details :", TaskManager.details);
printf ("\n");
} // end of preview
/*Function print; printing the result in diffrent format*/
void Taskprint()
{ // start of print
printf("%30s%15s%15s\n", TaskManager.title, TaskManager.startDate, TaskManager.endDate);
printf("\n");
} // end of print
/*Start of function view*/
void TaskView ()
{ //start of view
FILE *viewPtr; // Task.dat file pointer
/*Opening the file*/
if ((viewPtr = fopen ("Task.dat", "r")) == NULL) { // start of if
printf ("File Could not be Openend.\n");
} // end of if
else {// start of else
rewind(viewPtr); // sets pointer to begining of file
system ("cls");
printf("%30s%15s%15s\n", "Title", "Start Date", "End Date");
/*Resd trough file stream */
while ( !feof(viewPtr)) { // start of while
/*set all the structure memory to NULL */
TaskManager.title[0] = '\0';
TaskManager.details[0]= '\0';
TaskManager.startDate[0]= '\0';
TaskManager.endDate[0]= '\0';
/*Read from file*/
fread (&TaskManager, sizeof(TaskManager), 1, viewPtr);
if (TaskManager.title[0] != '\0') { // start of if
Taskprint ();
} // end of if
else { // start of else
break;
} // end of else
} // end of while
fclose(viewPtr);
}// end of else
getchar();
} // end of view
/*function delete; header to delete*/
void TaskDelete ()
{ // start of delete
int choice;
system("cls");
/*Ask The user*/
printf ("what do you want to do ?\n");
printf ("[1]. Delete Task\n");
printf ("[2]. Return To Main Menu\n");
printf ("Please Choose an Option :\n");
scanf ("%d", &choice );
/*if the input is invalid*/
if (choice < 1 || choice > 2 ) { // start of if
printf( "Invalid Input !\n" );
system("pause");
TaskMainTask();
} // end of if
/*if the input is valid*/
else { // start of else
switch (choice) { // start of switch
case 1 : // return to deleteTitle
TaskDeleteTitle();
break;
case 2 : // back to Main Task
TaskMainTask();
break;
} // end of switch
} // end of else
system("pause");
}// end of delete
/*start of deleteTitle function; part of delete*/
void TaskDeleteTitle ()
{ // start of deleteTitle
FILE *cfPtr; // assign file pointer
/*initiate variables*/
int result;
char checkTitle[20];
int choice1;
int choice2;
system("cls");
/*opening Task.dat file*/
if ((cfPtr = fopen ("Task.dat", "rb+")) == NULL ) { // start of if
printf ("File Couldn't be found");
} // end of if
else { // start of else
TaskView (); // View the current file
printf ("Enter the Title you want to delete :\n");
gets (checkTitle);
/*Read Through the file*/
while (fread(&TaskManager, sizeof(TaskManager), 1, cfPtr)
&& strcmp (checkTitle, TaskManager.title));
/*compareing the strings*/
result = strcmp (checkTitle, TaskManager.title);
if (result != 0) { // start of if
printf("Record Not Found !\n\n");
} // end of if
else { // start of else
system("cls");
printf("Record is found !\n\n");
TaskPreview ();
/*aking the user*/
printf ("Do You want to delete this Note ?\n");
printf ("[1]. Yes\n[2]. No\n");
printf ("Choose an Option : ");
scanf ("%d", &choice1);
/*if the input is invalid*/
if (choice1 < 1 || choice1 > 2 ) { // start of if
printf ("Input Invalid !");
getchar ();
TaskMainTask ();
} // end of if
/*if the input is Valid*/
else { // start of else
switch (choice1) { // start of switch
case 1 : // argument #1
TaskEmpty(cfPtr, checkTitle, TaskManager.title);
printf ("Note Deleted !\n");
break; // break case 1
case 2 : // argument # 2
TaskMainTask();
break; // break case #2
} // end of switch
} //end of else
} // end of outer else
fclose (cfPtr);
} // end the most outer else
} // end of delete Title
/*Start of Function empty*/
void TaskEmpty (FILE *delPtr, char check[], char data[])
{ // start of empty
FILE *temp; // file pointer
temp = fopen ("temp.dat", "w"); // set temp to open file temp.dat
rewind(delPtr); // set pointer to begining of file
while (fread(&TaskManager, sizeof(TaskManager), 1, delPtr)) { // start of while
if (strcmp (check, data)) { // start of if
fwrite ( &TaskManager, sizeof (TaskManager), 1, temp); //write to file
} // end of if
} // end of while
fclose (delPtr); // closing file pointer
fclose (temp); // closing temporary pointer
remove ("Task.dat"); // delete task.dat
rename ("temp.dat", "Task.dat"); // rename temp.dat to task.dat
/*set structure to NULL*/
TaskManager.title[0] = '\0';
TaskManager.details[0] = '\0';
TaskManager.startDate[0] = '\0';
TaskManager.endDate[0] = '\0';
} // end of empty
/*Start of function print_file*/
void TaskPrintFile()
{ // start of print_file
FILE *viewPtr; // Set File Pointer
FILE *printPtr; // set File Pointer
system("cls");
/*if the record cannot be found*/
if((viewPtr=fopen("Task.dat","r"))== NULL){ // start of if
printf("File could not be opened.\n");
}//end if
/*if the record cannot be found*/
if((printPtr=fopen("Task2.txt","w"))== NULL){ // start of if
printf("File could not be opened.\n");
}//end if
else{ // start of else
rewind(viewPtr); // set pointer to the start of file
/*set the array to NULL*/
while(!feof(viewPtr)){ // start of while
TaskManager.title[0] = '\0';
TaskManager.details[0] = '\0';
TaskManager.startDate[0]='\0';
TaskManager.endDate[0] = '\0';
/*read from file*/
fread(&TaskManager, sizeof(TaskManager),1,viewPtr);
if(TaskManager.title[0]!='\0'){ // start of if
fprintf (printPtr,"%43s\n\n","=====Task Print=====");
fprintf (printPtr,"%30s%15s%15s\n","Title","Start Date","Due Date");
fprintf (printPtr,"%30s%15s%15s\n",TaskManager.title, TaskManager.startDate, TaskManager.endDate);
fprintf (printPtr,"\n%10s\n%10s\n\n", "Notes / Details :", TaskManager.details);
fprintf (printPtr,"\n");
} // end of if
else { // start of else
break;
} // end of else
}//end while
printf("The informations have been printed on a file\n\n");
fclose(viewPtr);
fclose(printPtr);
}//end else
getchar();
getchar();
} // end of print_file
/*start of edit*/
void TaskEdit()
{ // start of edit
int choice;
system("cls");
/*Asking for user input*/
printf("\n\n\nWhat Do You Want To do ?\n");
printf("[1]. Edit by title\n");
printf("[2]. Return to menu\n");
printf("\nPlease choose an option : ");
scanf("%d", &choice);
/*if the input was invalid*/
if(choice<1 || choice>2){ // start of if
printf("Please only enter 1-2!\n");
system("pause");
}//end inner if
switch (choice){ // start of switch
case 1 : // case #1
TaskEditTitle();
break;
case 2 : // case #2
system ("cls");
TaskMainTask();
break;
}//end switch
}//end edit function
/*start of e_title*/
void TaskEditTitle()
{ // start of e_title
FILE *cfPtr; // assign a FILE pointer
int result;
char check_task[20];
int choice1;
/*if file can't be opened*/
if((cfPtr = fopen("Task.dat","rb+"))==NULL){
printf("File could not be opened.\n");
}//end if
else{ // start of else
system ("cls");
TaskView ();
printf("Enter the title you wish to change : ");
gets(check_task);
/*Read from file*/
while(fread(&TaskManager,sizeof(TaskManager), 1, cfPtr)
&& strcmp(check_task, TaskManager.title));
/*comparing the strings*/
result = strcmp(check_task, TaskManager.title);
if(result!=0)
{// start of if
system("cls");
printf("==SEARCHING==\n");
system("pause");
system("cls");
printf("Record not found!\n\n");
} // end of if
else{ // start of else
system("cls");
printf("==SEARCHING==\n");
system("pause");
system("cls");
printf("Record found!\n\n");
TaskPreview();
/*ask the user for input*/
printf("Do you want to edit this record?\n");
printf("[1]. Yes / [2]. No\n");
printf("Choose an option : ");
scanf("%d", &choice1);
/*if the input is invalid*/
if(choice1<1 || choice1>2){
printf("Please only enter 1-2!\n");
system("pause");
TaskEditTitle();
}//end inner if
/*If the input is valid*/
else { // start of else
switch (choice1){ // start of switch
case 1 : // case #1
TaskChange(cfPtr, check_task,TaskManager.title);
printf("\nRecord edited!\n");
printf("Press [ENTER] to Continue\n");
system("pause");
break; // break from outer case#1
case 2 : // case #2
TaskMainTask();
break;
}//end switch
}//end inner else
}//end else
fclose(cfPtr); // closing the pointer
}//end else
}// end of e_title
/*start of change*/
void TaskChange(FILE *editPtr, char check[],char data[])
{ // start of change
char buffer[10];
rewind(editPtr); // set the pointer to the start of file
/*reading the file*/
while(fread(&TaskManager, sizeof(TaskManager), 1, editPtr) && strcmp(check,data));
/* Changing the content */
if(!strcmp(check,data)){ // start of if
system("cls");
printf("\nEnter Title : ");
gets(buffer);
gets(TaskManager.title);
printf("\nDetails/Notes : \n ");
gets(TaskManager.details);
printf("\nStart Date ( mm/dd/yy ): ");
gets(TaskManager.startDate);
printf("End Date ( mm/dd/yy ): ");
gets(TaskManager.endDate);
fseek(editPtr, ftell(editPtr) - sizeof(TaskManager),0);
fwrite(&TaskManager, sizeof(TaskManager), 1, editPtr);
}//end if
fclose(editPtr); // close the pointer
} // end of change
/*start of look*/
void TaskLook ()
{
FILE *lookPtr; // set a File pointer
/*Assigning variable*/
int result;
char checkTitle[20];
int choice1;
/* opening the file*/
if((lookPtr = fopen("Task.dat","rb+"))==NULL){ // start of if
printf("File could not be opened.\n");
}//end if
else{ // start of else
system ("cls");
TaskView ();
printf("Enter the title you wish to view :\n");
gets (checkTitle);
/*read through the file*/
while (fread(&TaskManager, sizeof(TaskManager), 1, lookPtr)
&& strcmp (checkTitle, TaskManager.title));
/* comparing the strings */
result = strcmp (checkTitle, TaskManager.title);
if (result != 0) { // start of if; if the string not found
printf("Record Not Found !\n\n");
system("pause");
} // end of if
else {// start of else; if the strings are matched
system("cls");
printf("Record is found !\n");
TaskPreview ();
/*asking user input*/
printf ("Do You want to view another task ?\n");
printf ("[1]. Yes\n[2]. No\n");
printf ("Choose an Option : ");
scanf ("%d", &choice1);
/*if the input invalid*/
if (choice1 < 1 || choice1 > 2 ) {// start of if
printf ("Input Invalid !");
getchar ();
TaskMainTask ();
} // end of if
else { // start of else
switch ( choice1 ) { // start of switch
case 1:// case #1
system ("cls");
TaskLook ();
break;
case 2: // case #2
system("cls");
TaskMainTask ();
break;
} // end of switch
} // end of else
} // end of outer else
fclose(lookPtr);
} // end of outest else
}// // end of look
//---------------------- end task ---------------------------------------
