Pileus Git - lackey/blob - src/args.c

   1 /*
   2  * Copyright (C) 2016 Andy Spencer <andy753421@gmail.com>
   3  *
   4  * This program is free software: you can redistribute it and/or modify
   5  * it under the terms of the GNU General Public License as published by
   6  * the Free Software Foundation, either version 3 of the License, or
   7  * (at your option) any later version.
   8  *
   9  * This program is distributed in the hope that it will be useful,
  10  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  11  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  12  * GNU General Public License for more details.
  13  *
  14  * You should have received a copy of the GNU General Public License
  15  * along with this program.  If not, see <http://www.gnu.org/licenses/>.
  16  */
  17
  18 #include <stdlib.h>
  19 #include <stdio.h>
  20 #include <getopt.h>
  21
  22 #include "args.h"
  23 #include "util.h"
  24 #include "conf.h"
  25 #include "date.h"
  26 #include "cal.h"
  27
  28 /* Setup info */
  29 static int    argc;
  30 static char **argv;
  31
  32 /* Options */
  33 const char *short_options = "hdw";
  34
  35 struct option long_options[] = {
  36         {"help", 0, NULL, 'h'},
  37         {"day",  2, NULL, 'd'},
  38         {"week", 2, NULL, 'w'},
  39 };
  40
  41 static int print_day  = 0;
  42 static int print_week = 0;
  43
  44 /* Usage */
  45 static void usage(char *name)
  46 {
  47         printf("Usage:\n");
  48         printf("  %s [OPTION...]\n", name);
  49         printf("\n");
  50         printf("Options:\n");
  51         printf("  -h, --help  Print usage information\n");
  52         printf("  -d, --day   Show today's events\n");
  53         printf("  -w, --week  Show this week's events\n");
  54 }
  55
  56 /* Initialize */
  57 void args_setup(int _argc, char **_argv)
  58 {
  59         argc = _argc;
  60         argv = _argv;
  61 }
  62
  63 /* Initialize */
  64 void args_init(void)
  65 {
  66         /* Parse arguments */
  67         while (1) {
  68                 int c = getopt_long(argc, argv,
  69                                 short_options, long_options, NULL);
  70                 if (c == -1)
  71                         break;
  72                 switch (c) {
  73                         case 'h':
  74                                 usage(argv[0]);
  75                                 exit(0);
  76                                 break;
  77                         case 'd':
  78                                 print_day = 1;
  79                                 break;
  80                         case 'w':
  81                                 print_week = 1;
  82                                 break;
  83                 }
  84         }
  85
  86         /* Validate arguments */
  87         if (print_day && print_week)
  88                 error("Cannot print both day and week");
  89 }
  90
  91 void args_main(void)
  92 {
  93         if (print_day || print_week) {
  94                 event_t *event = EVENTS;
  95                 for (int d = 0; d < (print_day ? 1 : 7); d++) {
  96                         /* Get start and end of the day */
  97                         date_t start = {SEL.year, SEL.month, SEL.day,  0, 0};
  98                         date_t end   = {SEL.year, SEL.month, SEL.day, 24, 0};
  99
 100                         add_days(&start.year, &start.month, &start.day, d);
 101                         add_days(&end.year,   &end.month,   &end.day,   d);
 102
 103
 104                         /* Print day header */
 105                         wday_t wday = day_of_week(start.year, start.month, start.day);
 106                         printf("%s%s, %s %d, %d\n",
 107                                 d ? "\n" : "",
 108                                 day_to_string(wday),
 109                                 month_to_string(start.month),
 110                                 start.day+1,
 111                                 start.year);
 112
 113                         /* Skip forward to the day */
 114                         while (event && compare(&start, &event->start) > 0)
 115                                 event = event->next;
 116
 117                         /* Print event info */
 118                         int printed = 0;
 119                         while (event && compare(&end, &event->start) > 0) {
 120                                 printf("%s  %02d:%02d",
 121                                         printed ? "\n" : "",
 122                                         event->start.hour,
 123                                         event->start.min);
 124                                 if (event->name)
 125                                         printf("  %s\n", event->name);
 126                                 if (event->desc)
 127                                         printf("\n  %s\n", event->desc);
 128                                 printed++;
 129                                 event = event->next;
 130                         }
 131
 132                         /* Print no events */
 133                         if (!printed)
 134                                 printf("  No events\n");
 135                 }
 136
 137                 exit(0);
 138         }
 139 }