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/* See LICENSE file for copyright and license details. */
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <time.h>
#include "tasklst.h"
static int tasklst_tasks_status(TaskLst tasks, int status);
static int
tasklst_tasks_status(TaskLst tasks, int status)
{
int i, total;
for (i = 0, total = 0; i < TASK_LST_MAX_NUM; ++i) {
if (tasks.status[i] == status)
++total;
}
return total;
}
void
tasklst_init(TaskLst *tasks)
{
int i;
tasks->expiry = 0;
for (i = 0; i < TASK_LST_MAX_NUM; ++i) {
memset(&tasks->status[i], TASK_VOID, sizeof(int));
memset(tasks->tdesc[i], 0, TASK_LST_DESC_MAX_SIZE);
}
}
void
tasklst_set_expiration(TaskLst *tasks)
{
tasks->expiry = time(NULL) + TASK_LST_EXPIRY;
}
int
tasklst_expired(TaskLst tasks)
{
return ((time(NULL) - tasks.expiry) > TASK_LST_EXPIRY) ? 0 : -1;
}
int
tasklst_tasks_total(TaskLst tasks)
{
return tasklst_tasks_todo(tasks) + tasklst_tasks_done(tasks);
}
int
tasklst_tasks_todo(TaskLst tasks)
{
return tasklst_tasks_status(tasks, TASK_TODO);
}
int
tasklst_tasks_done(TaskLst tasks)
{
return tasklst_tasks_status(tasks, TASK_DONE);
}
int
tasklst_read_from_file(TaskLst *tasks, FILE *fp)
{
int i, stat_buf;
char *ptr, *endptr;
char linebuf[TASK_LST_DESC_MAX_SIZE];
fgets(linebuf, sizeof(linebuf), fp);
tasks->expiry = strtoul(linebuf, &endptr, 10);
if (endptr[0] != '\n')
return -1;
for (i = 0; i < TASK_LST_MAX_NUM && feof(fp) == 0; ++i) {
if (fgets(linebuf, sizeof(linebuf), fp) == NULL)
break;
ptr = strtok(linebuf, "\t");
if (ptr == NULL)
return -1;
stat_buf = strtol(ptr, &endptr, 10);
if (endptr[0] != '\0')
return -1;
if (stat_buf == TASK_VOID)
break;
else
tasks->status[i] = stat_buf;
ptr = strtok(NULL, "\n");
if (ptr == NULL)
return -1;
strncpy(tasks->tdesc[i], ptr, TASK_LST_DESC_MAX_SIZE);
}
return 0;
}
void
tasklst_write_to_file(FILE *fp, TaskLst tasks)
{
int i;
fprintf(fp, "%zu\n", tasks.expiry);
for (i = 0; i < TASK_LST_MAX_NUM; ++i) {
if (tasks.status[i] == TASK_VOID)
break;
fprintf(fp, "%d\t%s\n", tasks.status[i], tasks.tdesc[i]);
}
}
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