lbbs/src/article_favor_display.c

/* SPDX-License-Identifier: GPL-3.0-or-later */
/*
 * article_favor_display
 *   - user interactive feature to display favorite articles
 *
 * Copyright (C) 2004-2025  Leaflet <leaflet@leafok.com>
 */

#ifdef HAVE_CONFIG_H
#include "config.h"
#endif

#include "article_favor_display.h"
#include "article_view_log.h"
#include "io.h"
#include "log.h"
#include "login.h"
#include "screen.h"
#include "str_process.h"
#include "section_list.h"
#include "section_list_display.h"
#include "user_priv.h"
#include <string.h>
#include <time.h>
#include <sys/param.h>

enum select_cmd_t
{
        EXIT_LIST = 0,
        LOCATE_ARTICLE,
        CHANGE_PAGE,
        SHOW_HELP,
        SWITCH_NAME,
        UNSET_FAVOR,
};

static int article_favor_draw_screen(int display_sname)
{
        clearscr();
        show_top("[主题收藏]", BBS_name, "");
        moveto(2, 0);
        prints("返回[\033[1;32m←\033[0;37m,\033[1;32mESC\033[0;37m] 选择[\033[1;32m↑\033[0;37m,\033[1;32m↓\033[0;37m] "
                   "定位[\033[1;32m→\033[0;37m,\033[1;32mENTER\033[0;37m] 移除[\033[1;32m-\033[0;37m\033[0;37m] "
                   "%s[\033[1;32mn\033[0;37m] 帮助[\033[1;32mh\033[0;37m]\033[m",
                   (display_sname ? "用户名" : "版块名称"));
        moveto(3, 0);
        if (display_sname)
        {
                prints("\033[44;37m  \033[1;37m 编  号   版块名称             日  期  文章标题                               \033[m");
        }
        else
        {
                prints("\033[44;37m  \033[1;37m 编  号   发 布 者     日  期  文章标题                                       \033[m");
        }

        return 0;
}

static int article_favor_draw_items(int page_id, ARTICLE *p_articles[], char p_snames[][BBS_section_name_max_len + 1],
                                                                        int article_count, int display_sname)
{
        char str_time[LINE_BUFFER_LEN];
        struct tm tm_sub;
        char title_f[BBS_article_title_max_len + 1];
        int title_f_len;
        int eol;
        int len;
        int i;
        char article_flag;
        int is_viewed;
        time_t tm_now;

        time(&tm_now);

        clrline(4, 23);

        for (i = 0; i < article_count; i++)
        {
                if (p_articles[i]->uid == BBS_priv.uid)
                {
                        is_viewed = 1;
                }
                else
                {
                        is_viewed = article_view_log_is_viewed(p_articles[i]->aid, &BBS_article_view_log);
                        if (is_viewed < 0)
                        {
                                log_error("article_view_log_is_viewed(aid=%d) error\n", p_articles[i]->aid);
                                is_viewed = 0;
                        }
                }

                if (p_articles[i]->excerption)
                {
                        article_flag = (is_viewed ? 'm' : 'M');
                }
                else if (p_articles[i]->lock && is_viewed)
                {
                        article_flag = 'x';
                }
                else
                {
                        article_flag = (is_viewed ? ' ' : 'N');
                }

                localtime_r(&p_articles[i]->sub_dt, &tm_sub);
                if (tm_now - p_articles[i]->sub_dt < 3600 * 24 * 365)
                {
                        strftime(str_time, sizeof(str_time), "%b %e ", &tm_sub);
                }
                else
                {
                        strftime(str_time, sizeof(str_time), "%m/%Y", &tm_sub);
                }

                strncpy(title_f, (p_articles[i]->tid == 0 ? "● " : ""), sizeof(title_f) - 1);
                title_f[sizeof(title_f) - 1] = '\0';
                strncat(title_f, (p_articles[i]->transship ? "[转载]" : ""), sizeof(title_f) - 1 - strnlen(title_f, sizeof(title_f)));
                strncat(title_f, p_articles[i]->title, sizeof(title_f) - 1 - strnlen(title_f, sizeof(title_f)));

                len = split_line(title_f, 59 - (display_sname ? BBS_section_name_max_len : BBS_username_max_len), &eol, &title_f_len, 1);
                if (title_f[len] != '\0')
                {
                        title_f[len] = '\0';
                }

                moveto(4 + i, 1);

                prints("  %7d %c %s%*s %s %s",
                           p_articles[i]->aid,
                           article_flag,
                           (display_sname ? p_snames[i] : p_articles[i]->username),
                           (display_sname
                                        ? BBS_section_name_max_len - str_length(p_snames[i], 1)
                                        : BBS_username_max_len - str_length(p_articles[i]->username, 1)),
                           "",
                           str_time,
                           title_f);
        }

        return 0;
}

static enum select_cmd_t article_favor_select(int total_page, int item_count, int *p_page_id, int *p_selected_index)
{
        int old_page_id = *p_page_id;
        int old_selected_index = *p_selected_index;
        int ch;

        if (item_count > 0 && *p_selected_index >= 0)
        {
                moveto(4 + *p_selected_index, 1);
                outc('>');
                iflush();
        }

        while (!SYS_server_exit)
        {
                ch = igetch(100);

                if (ch != KEY_NULL && ch != KEY_TIMEOUT)
                {
                        BBS_last_access_tm = time(NULL);

                        // Refresh current action
                        if (user_online_update(NULL) < 0)
                        {
                                log_error("user_online_update(NULL) error\n");
                        }
                }

                switch (ch)
                {
                case KEY_NULL: // broken pipe
                        log_error("KEY_NULL\n");
                case KEY_ESC:
                case KEY_LEFT:
                        return EXIT_LIST; // exit list
                case KEY_TIMEOUT:
                        if (time(NULL) - BBS_last_access_tm >= BBS_max_user_idle_time)
                        {
                                log_error("User input timeout\n");
                                return EXIT_LIST; // exit list
                        }
                        continue;
                case 'n':
                        return SWITCH_NAME;
                case '-':
                        if (item_count > 0)
                        {
                                return UNSET_FAVOR;
                        }
                        break;
                case CR:
                case KEY_RIGHT:
                        if (item_count > 0)
                        {
                                return LOCATE_ARTICLE;
                        }
                        break;
                case KEY_HOME:
                        *p_page_id = 0;
                case 'P':
                case KEY_PGUP:
                        *p_selected_index = 0;
                case 'k':
                case KEY_UP:
                        if (*p_selected_index <= 0)
                        {
                                if (*p_page_id > 0)
                                {
                                        (*p_page_id)--;
                                        *p_selected_index = BBS_article_limit_per_page - 1;
                                }
                                else if (ch == KEY_UP || ch == 'k') // Rotate to the tail of list
                                {
                                        if (total_page > 0)
                                        {
                                                *p_page_id = total_page - 1;
                                        }
                                        if (item_count > 0)
                                        {
                                                *p_selected_index = item_count - 1;
                                        }
                                }
                        }
                        else
                        {
                                (*p_selected_index)--;
                        }
                        break;
                case '$':
                case KEY_END:
                        if (total_page > 0)
                        {
                                *p_page_id = total_page - 1;
                        }
                case 'N':
                case KEY_PGDN:
                        if (item_count > 0)
                        {
                                *p_selected_index = item_count - 1;
                        }
                case 'j':
                case KEY_DOWN:
                        if (*p_selected_index + 1 >= item_count) // next page
                        {
                                if (*p_page_id + 1 < total_page)
                                {
                                        (*p_page_id)++;
                                        *p_selected_index = 0;
                                }
                                else if (ch == KEY_DOWN || ch == 'j') // Rotate to the head of list
                                {
                                        *p_page_id = 0;
                                        *p_selected_index = 0;
                                }
                        }
                        else
                        {
                                (*p_selected_index)++;
                        }
                        break;
                case 'h':
                        return SHOW_HELP;
                default:
                        break;
                }

                if (old_page_id != *p_page_id)
                {
                        return CHANGE_PAGE;
                }

                if (item_count > 0 && old_selected_index != *p_selected_index)
                {
                        if (old_selected_index >= 0)
                        {
                                moveto(4 + old_selected_index, 1);
                                outc(' ');
                        }
                        if (*p_selected_index >= 0)
                        {
                                moveto(4 + *p_selected_index, 1);
                                outc('>');
                        }
                        iflush();

                        old_selected_index = *p_selected_index;
                }
        }

        return EXIT_LIST;
}

int article_favor_display(ARTICLE_FAVOR *p_favor)
{
        static int display_sname = 0;

        char page_info_str[LINE_BUFFER_LEN];
        char snames[BBS_article_limit_per_page][BBS_section_name_max_len + 1];
        ARTICLE *p_articles[BBS_article_limit_per_page];
        int article_count;
        int page_count;
        int page_id = 0;
        int selected_index = 0;
        int ret;

        if (p_favor == NULL)
        {
                log_error("NULL pointer error\n");
                return -1;
        }

        article_favor_draw_screen(display_sname);

        ret = query_favor_articles(p_favor, page_id, p_articles, snames, &article_count, &page_count);
        if (ret < 0)
        {
                log_error("query_favor_articles(page_id=%d) error\n", page_id);
                return -2;
        }

        if (article_count == 0) // empty list
        {
                selected_index = 0;
        }

        while (!SYS_server_exit)
        {
                ret = article_favor_draw_items(page_id, p_articles, snames, article_count, display_sname);
                if (ret < 0)
                {
                        log_error("article_favor_draw_items(page_id=%d) error\n", page_id);
                        return -3;
                }

                snprintf(page_info_str, sizeof(page_info_str),
                                 "\033[33m[第\033[36m%d\033[33m/\033[36m%d\033[33m页]",
                                 page_id + 1, MAX(page_count, 1));

                show_bottom(page_info_str);
                iflush();

                if (user_online_update("ARTICLE_FAVOR") < 0)
                {
                        log_error("user_online_update(ARTICLE_FAVOR) error\n");
                }

                ret = article_favor_select(page_count, article_count, &page_id, &selected_index);
                switch (ret)
                {
                case EXIT_LIST:
                        return 0;
                case UNSET_FAVOR:
                        if (article_favor_set(p_articles[selected_index]->aid, &BBS_article_favor, 0) != 1)
                        {
                                log_error("article_favor_set(aid=%d, 0) error\n", p_articles[selected_index]->aid);
                                break;
                        }
                        // continue to refresh list
                case CHANGE_PAGE:
                        ret = query_favor_articles(p_favor, page_id, p_articles, snames, &article_count, &page_count);
                        if (ret < 0)
                        {
                                log_error("query_favor_articles(page_id=%d) error\n", page_id);
                                return -2;
                        }

                        if (article_count == 0) // empty list
                        {
                                selected_index = 0;
                        }
                        else if (selected_index >= article_count)
                        {
                                selected_index = article_count - 1;
                        }
                        break;
                case LOCATE_ARTICLE:
                        if (section_list_display(snames[selected_index], p_articles[selected_index]->aid) < 0)
                        {
                                log_error("section_list_display(sname=%s, aid=%d) error\n",
                                                  snames[selected_index], p_articles[selected_index]->aid);
                        }
                        break;
                case SWITCH_NAME:
                        display_sname = !display_sname;
                        article_favor_draw_screen(display_sname);
                        break;
                case SHOW_HELP:
                        // Display help information
                        display_file(DATA_READ_HELP, 1);
                        article_favor_draw_screen(display_sname);
                        break;
                default:
                        log_error("Unknown command %d\n", ret);
                }
        }

        return 0;
}
1	sysadm	1.6	/* SPDX-License-Identifier: GPL-3.0-or-later */
2			/*
3			* article_favor_display
4			* - user interactive feature to display favorite articles
5			*
6	sysadm	1.7	* Copyright (C) 2004-2025 Leaflet <leaflet@leafok.com>
7	sysadm	1.6	*/
8	sysadm	1.1
9	sysadm	1.9	#ifdef HAVE_CONFIG_H
10			#include "config.h"
11			#endif
12
13	sysadm	1.1	#include "article_favor_display.h"
14			#include "article_view_log.h"
15			#include "io.h"
16			#include "log.h"
17			#include "login.h"
18			#include "screen.h"
19			#include "str_process.h"
20			#include "section_list.h"
21			#include "section_list_display.h"
22			#include "user_priv.h"
23			#include <string.h>
24			#include <time.h>
25			#include <sys/param.h>
26
27			enum select_cmd_t
28			{
29	sysadm	1.5	EXIT_LIST = 0,
30			LOCATE_ARTICLE,
31			CHANGE_PAGE,
32			SHOW_HELP,
33			SWITCH_NAME,
34			UNSET_FAVOR,
35	sysadm	1.1	};
36
37			static int article_favor_draw_screen(int display_sname)
38			{
39	sysadm	1.5	clearscr();
40			show_top("[主题收藏]", BBS_name, "");
41			moveto(2, 0);
42			prints("返回[\033[1;32m←\033[0;37m,\033[1;32mESC\033[0;37m] 选择[\033[1;32m↑\033[0;37m,\033[1;32m↓\033[0;37m] "
43			"定位[\033[1;32m→\033[0;37m,\033[1;32mENTER\033[0;37m] 移除[\033[1;32m-\033[0;37m\033[0;37m] "
44			"%s[\033[1;32mn\033[0;37m] 帮助[\033[1;32mh\033[0;37m]\033[m",
45			(display_sname ? "用户名" : "版块名称"));
46			moveto(3, 0);
47			if (display_sname)
48			{
49			prints("\033[44;37m \033[1;37m 编号版块名称日期文章标题 \033[m");
50			}
51			else
52			{
53			prints("\033[44;37m \033[1;37m 编号发布者日期文章标题 \033[m");
54			}
55	sysadm	1.1
56	sysadm	1.5	return 0;
57	sysadm	1.1	}
58
59			static int article_favor_draw_items(int page_id, ARTICLE *p_articles[], char p_snames[][BBS_section_name_max_len + 1],
60	sysadm	1.5	int article_count, int display_sname)
61	sysadm	1.1	{
62	sysadm	1.5	char str_time[LINE_BUFFER_LEN];
63			struct tm tm_sub;
64			char title_f[BBS_article_title_max_len + 1];
65			int title_f_len;
66			int eol;
67			int len;
68			int i;
69			char article_flag;
70			int is_viewed;
71			time_t tm_now;
72
73			time(&tm_now);
74
75			clrline(4, 23);
76
77			for (i = 0; i < article_count; i++)
78			{
79			if (p_articles[i]->uid == BBS_priv.uid)
80			{
81			is_viewed = 1;
82			}
83			else
84			{
85			is_viewed = article_view_log_is_viewed(p_articles[i]->aid, &BBS_article_view_log);
86			if (is_viewed < 0)
87			{
88			log_error("article_view_log_is_viewed(aid=%d) error\n", p_articles[i]->aid);
89			is_viewed = 0;
90			}
91			}
92
93			if (p_articles[i]->excerption)
94			{
95			article_flag = (is_viewed ? 'm' : 'M');
96			}
97			else if (p_articles[i]->lock && is_viewed)
98			{
99			article_flag = 'x';
100			}
101			else
102			{
103			article_flag = (is_viewed ? ' ' : 'N');
104			}
105
106			localtime_r(&p_articles[i]->sub_dt, &tm_sub);
107			if (tm_now - p_articles[i]->sub_dt < 3600 * 24 * 365)
108			{
109			strftime(str_time, sizeof(str_time), "%b %e ", &tm_sub);
110			}
111			else
112			{
113			strftime(str_time, sizeof(str_time), "%m/%Y", &tm_sub);
114			}
115
116			strncpy(title_f, (p_articles[i]->tid == 0 ? "● " : ""), sizeof(title_f) - 1);
117			title_f[sizeof(title_f) - 1] = '\0';
118			strncat(title_f, (p_articles[i]->transship ? "[转载]" : ""), sizeof(title_f) - 1 - strnlen(title_f, sizeof(title_f)));
119			strncat(title_f, p_articles[i]->title, sizeof(title_f) - 1 - strnlen(title_f, sizeof(title_f)));
120
121			len = split_line(title_f, 59 - (display_sname ? BBS_section_name_max_len : BBS_username_max_len), &eol, &title_f_len, 1);
122			if (title_f[len] != '\0')
123			{
124			title_f[len] = '\0';
125			}
126
127			moveto(4 + i, 1);
128
129			prints(" %7d %c %s%*s %s %s",
130			p_articles[i]->aid,
131			article_flag,
132			(display_sname ? p_snames[i] : p_articles[i]->username),
133			(display_sname
134			? BBS_section_name_max_len - str_length(p_snames[i], 1)
135			: BBS_username_max_len - str_length(p_articles[i]->username, 1)),
136			"",
137			str_time,
138			title_f);
139			}
140	sysadm	1.1
141	sysadm	1.5	return 0;
142	sysadm	1.1	}
143
144			static enum select_cmd_t article_favor_select(int total_page, int item_count, int p_page_id, int p_selected_index)
145			{
146	sysadm	1.5	int old_page_id = *p_page_id;
147			int old_selected_index = *p_selected_index;
148			int ch;
149
150			if (item_count > 0 && *p_selected_index >= 0)
151			{
152			moveto(4 + *p_selected_index, 1);
153			outc('>');
154			iflush();
155			}
156
157			while (!SYS_server_exit)
158			{
159			ch = igetch(100);
160
161			if (ch != KEY_NULL && ch != KEY_TIMEOUT)
162			{
163			BBS_last_access_tm = time(NULL);
164	sysadm	1.10
165			// Refresh current action
166			if (user_online_update(NULL) < 0)
167			{
168			log_error("user_online_update(NULL) error\n");
169			}
170	sysadm	1.5	}
171
172			switch (ch)
173			{
174			case KEY_NULL: // broken pipe
175			log_error("KEY_NULL\n");
176			case KEY_ESC:
177			case KEY_LEFT:
178			return EXIT_LIST; // exit list
179			case KEY_TIMEOUT:
180	sysadm	1.8	if (time(NULL) - BBS_last_access_tm >= BBS_max_user_idle_time)
181	sysadm	1.5	{
182			log_error("User input timeout\n");
183			return EXIT_LIST; // exit list
184			}
185			continue;
186			case 'n':
187			return SWITCH_NAME;
188			case '-':
189			if (item_count > 0)
190			{
191			return UNSET_FAVOR;
192			}
193			break;
194			case CR:
195			case KEY_RIGHT:
196			if (item_count > 0)
197			{
198			return LOCATE_ARTICLE;
199			}
200			break;
201			case KEY_HOME:
202			*p_page_id = 0;
203			case 'P':
204			case KEY_PGUP:
205			*p_selected_index = 0;
206			case 'k':
207			case KEY_UP:
208			if (*p_selected_index <= 0)
209			{
210			if (*p_page_id > 0)
211			{
212			(*p_page_id)--;
213			*p_selected_index = BBS_article_limit_per_page - 1;
214			}
215			else if (ch == KEY_UP \|\| ch == 'k') // Rotate to the tail of list
216			{
217			if (total_page > 0)
218			{
219			*p_page_id = total_page - 1;
220			}
221			if (item_count > 0)
222			{
223			*p_selected_index = item_count - 1;
224			}
225			}
226			}
227			else
228			{
229			(*p_selected_index)--;
230			}
231			break;
232			case '$':
233			case KEY_END:
234			if (total_page > 0)
235			{
236			*p_page_id = total_page - 1;
237			}
238			case 'N':
239			case KEY_PGDN:
240			if (item_count > 0)
241			{
242			*p_selected_index = item_count - 1;
243			}
244			case 'j':
245			case KEY_DOWN:
246			if (*p_selected_index + 1 >= item_count) // next page
247			{
248			if (*p_page_id + 1 < total_page)
249			{
250			(*p_page_id)++;
251			*p_selected_index = 0;
252			}
253			else if (ch == KEY_DOWN \|\| ch == 'j') // Rotate to the head of list
254			{
255			*p_page_id = 0;
256			*p_selected_index = 0;
257			}
258			}
259			else
260			{
261			(*p_selected_index)++;
262			}
263			break;
264			case 'h':
265			return SHOW_HELP;
266			default:
267			break;
268			}
269
270			if (old_page_id != *p_page_id)
271			{
272			return CHANGE_PAGE;
273			}
274
275			if (item_count > 0 && old_selected_index != *p_selected_index)
276			{
277			if (old_selected_index >= 0)
278			{
279			moveto(4 + old_selected_index, 1);
280			outc(' ');
281			}
282			if (*p_selected_index >= 0)
283			{
284			moveto(4 + *p_selected_index, 1);
285			outc('>');
286			}
287			iflush();
288
289			old_selected_index = *p_selected_index;
290			}
291			}
292	sysadm	1.1
293	sysadm	1.5	return EXIT_LIST;
294	sysadm	1.1	}
295
296			int article_favor_display(ARTICLE_FAVOR *p_favor)
297			{
298	sysadm	1.5	static int display_sname = 0;
299	sysadm	1.1
300	sysadm	1.5	char page_info_str[LINE_BUFFER_LEN];
301			char snames[BBS_article_limit_per_page][BBS_section_name_max_len + 1];
302			ARTICLE *p_articles[BBS_article_limit_per_page];
303			int article_count;
304			int page_count;
305			int page_id = 0;
306			int selected_index = 0;
307			int ret;
308
309			if (p_favor == NULL)
310			{
311			log_error("NULL pointer error\n");
312			return -1;
313			}
314
315			article_favor_draw_screen(display_sname);
316
317			ret = query_favor_articles(p_favor, page_id, p_articles, snames, &article_count, &page_count);
318			if (ret < 0)
319			{
320			log_error("query_favor_articles(page_id=%d) error\n", page_id);
321			return -2;
322			}
323
324			if (article_count == 0) // empty list
325			{
326			selected_index = 0;
327			}
328
329			while (!SYS_server_exit)
330			{
331			ret = article_favor_draw_items(page_id, p_articles, snames, article_count, display_sname);
332			if (ret < 0)
333			{
334			log_error("article_favor_draw_items(page_id=%d) error\n", page_id);
335			return -3;
336			}
337
338			snprintf(page_info_str, sizeof(page_info_str),
339			"\033[33m[第\033[36m%d\033[33m/\033[36m%d\033[33m页]",
340			page_id + 1, MAX(page_count, 1));
341
342			show_bottom(page_info_str);
343			iflush();
344
345			if (user_online_update("ARTICLE_FAVOR") < 0)
346			{
347			log_error("user_online_update(ARTICLE_FAVOR) error\n");
348			}
349
350			ret = article_favor_select(page_count, article_count, &page_id, &selected_index);
351			switch (ret)
352			{
353			case EXIT_LIST:
354			return 0;
355			case UNSET_FAVOR:
356			if (article_favor_set(p_articles[selected_index]->aid, &BBS_article_favor, 0) != 1)
357			{
358			log_error("article_favor_set(aid=%d, 0) error\n", p_articles[selected_index]->aid);
359			break;
360			}
361			// continue to refresh list
362			case CHANGE_PAGE:
363			ret = query_favor_articles(p_favor, page_id, p_articles, snames, &article_count, &page_count);
364			if (ret < 0)
365			{
366			log_error("query_favor_articles(page_id=%d) error\n", page_id);
367			return -2;
368			}
369
370			if (article_count == 0) // empty list
371			{
372			selected_index = 0;
373			}
374			else if (selected_index >= article_count)
375			{
376			selected_index = article_count - 1;
377			}
378			break;
379			case LOCATE_ARTICLE:
380			if (section_list_display(snames[selected_index], p_articles[selected_index]->aid) < 0)
381			{
382			log_error("section_list_display(sname=%s, aid=%d) error\n",
383			snames[selected_index], p_articles[selected_index]->aid);
384			}
385			break;
386			case SWITCH_NAME:
387			display_sname = !display_sname;
388			article_favor_draw_screen(display_sname);
389			break;
390			case SHOW_HELP:
391			// Display help information
392			display_file(DATA_READ_HELP, 1);
393			article_favor_draw_screen(display_sname);
394			break;
395			default:
396			log_error("Unknown command %d\n", ret);
397			}
398			}
399	sysadm	1.1
400	sysadm	1.5	return 0;
401	sysadm	1.1	}
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