1 /*
2  * Copyright (c) 2021 Omar Polo <op@omarpolo.com>
3  *
4  * Permission to use, copy, modify, and distribute this software for any
5  * purpose with or without fee is hereby granted, provided that the above
6  * copyright notice and this permission notice appear in all copies.
7  *
8  * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
9  * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
10  * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
11  * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
12  * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
13  * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
14  * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
15  */
16 
17 #include "compat.h"
18 
19 #include <stdlib.h>
20 #include <string.h>
21 #include <unistd.h>
22 
23 #include "telescope.h"
24 #include "ui.h"
25 #include "xwrapper.h"
26 
27 struct downloads downloads = STAILQ_HEAD_INITIALIZER(downloads);
28 
29 static void
30 no_downloads(void)
31 {
32 	struct line	*l;
33 
34 	l = xcalloc(1, sizeof(*l));
35 
36 	l->type = LINE_DOWNLOAD_INFO;
37 	l->line = xstrdup("No downloads");
38 
39 	TAILQ_INSERT_TAIL(&downloadwin.head, l, lines);
40 }
41 
42 void
43 recompute_downloads(void)
44 {
45 	struct download *d;
46 	struct line	*l;
47 	char		 buf[FMT_SCALED_STRSIZE];
48 
49 	downloadwin.mode = "*Downloads*";
50 	erase_buffer(&downloadwin);
51 
52 	if (STAILQ_EMPTY(&downloads)) {
53 		no_downloads();
54 		goto end;
55 	}
56 
57 	STAILQ_FOREACH(d, &downloads, entries) {
58 		l = xcalloc(1, sizeof(*l));
59 
60 		fmt_scaled(d->bytes, buf);
61 
62 		l->type = LINE_DOWNLOAD;
63 		if (d->fd == -1)
64 			l->type = LINE_DOWNLOAD_DONE;
65 
66 		l->line = xstrdup(buf);
67 		l->alt = xstrdup(d->path);
68 
69 		TAILQ_INSERT_TAIL(&downloadwin.head, l, lines);
70 	}
71 
72 end:
73 	/*
74 	 * The exact value doesn't matter, as wrap_page only considers
75 	 * l->line, which is the human representation of the byte
76 	 * counter, and we know for sure is < FMT_SCALED_STRSIZE so it
77 	 * fits.
78 	 */
79 	wrap_page(&downloadwin, download_cols, 0);
80 }
81 
82 struct download *
83 enqueue_download(uint32_t id, const char *path, const char *mime_type)
84 {
85 	struct download *d;
86 
87 	d = xcalloc(1, sizeof(*d));
88 
89 	d->id = id;
90 	d->fd = -1;
91 	d->path = xstrdup(path);
92 	d->mime_type = xstrdup(mime_type);
93 
94 	STAILQ_INSERT_HEAD(&downloads, d, entries);
95 
96 	return d;
97 }
98 
99 struct download *
100 download_by_id(uint32_t id)
101 {
102 	struct download *d;
103 
104 	STAILQ_FOREACH(d, &downloads, entries) {
105 		if (d->id == id)
106 			return d;
107 	}
108 
109 	return NULL;
110 }
111 
112 void
113 download_finished(struct download *d)
114 {
115 	if (d == NULL)
116 		return;
117 
118 	close(d->fd);
119 	d->fd = -1;
120 
121 	ui_on_download_refresh();
122 	ui_prompt_download_cmd(d);
123 }