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/* SPDX-License-Identifier: GPL-3.0-or-later */
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/*
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* user_stat
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* - data model and basic operations of user related statistics
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*
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* Copyright (C) 2004-2025 by Leaflet <leaflet@leafok.com>
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*/
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#include "log.h"
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#include "section_list.h"
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#include "user_list.h"
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#include "user_stat.h"
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int user_stat_map_init(USER_STAT_MAP *p_map)
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{
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if (p_map == NULL)
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{
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log_error("NULL pointer error\n");
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return -1;
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}
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p_map->user_count = 0;
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p_map->last_uid = -1;
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p_map->last_article_index = -1;
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return 0;
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}
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int user_stat_map_update(USER_STAT_MAP *p_map)
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{
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int32_t uid_list[BBS_max_user_count];
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int user_cnt = BBS_max_user_count;
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int article_cnt;
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int i;
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ARTICLE *p_article;
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if (p_map == NULL)
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{
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log_error("NULL pointer error\n");
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return -1;
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}
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// Load uid_list
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if (get_user_id_list(uid_list, &user_cnt, p_map->last_uid + 1) < 0)
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{
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log_error("get_user_id_list(%d, 0) error\n", user_cnt);
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return -2;
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}
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for (i = 0; i < user_cnt && p_map->user_count + i < BBS_max_user_count; i++)
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{
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p_map->stat_list[p_map->user_count + i].uid = uid_list[i];
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p_map->stat_list[p_map->user_count + i].article_count = 0;
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}
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p_map->user_count += i;
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p_map->last_uid = uid_list[i - 1];
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// Scan articles
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article_cnt = article_block_article_count();
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for (i = p_map->last_article_index + 1; i < article_cnt; i++)
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{
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p_article = article_block_find_by_index(i);
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if (p_article == NULL)
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{
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log_error("article_block_find_by_index(index=%d) error\n", i);
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break;
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}
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if (p_article->visible == 0)
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{
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continue;
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}
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if (p_article->uid > p_map->last_uid)
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{
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#ifdef _DEBUG
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log_error("uid=%d of article(aid=%d) is greater than last_uid=%d\n",
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p_article->uid, p_article->aid, p_map->last_uid);
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#endif
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continue;
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}
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if (user_stat_article_cnt_inc(p_map, p_article->uid, 1) < 0)
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{
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log_error("user_stat_article_cnt_inc(uid=%d, 1) error\n", p_article->uid);
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break;
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}
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}
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p_map->last_article_index = i - 1;
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return 0;
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}
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int user_stat_article_cnt_inc(USER_STAT_MAP *p_map, int32_t uid, int n)
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{
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int left;
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int right;
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int mid;
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if (p_map == NULL)
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{
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log_error("NULL pointer error\n");
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return -1;
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}
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left = 0;
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right = p_map->user_count - 1;
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while (left < right)
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{
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mid = (left + right) / 2;
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if (uid < p_map->stat_list[mid].uid)
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{
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right = mid - 1;
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}
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else if (uid > p_map->stat_list[mid].uid)
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{
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left = mid + 1;
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}
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else // if (uid == p_map->stat_list[mid].uid)
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{
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left = mid;
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break;
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}
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}
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if (uid == p_map->stat_list[left].uid) // found
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{
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p_map->stat_list[left].article_count += n;
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return 1;
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}
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return 0; // not found
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}
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int user_stat_get(USER_STAT_MAP *p_map, int32_t uid, const USER_STAT **pp_stat)
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{
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int left;
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int right;
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int mid;
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if (p_map == NULL)
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{
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log_error("NULL pointer error\n");
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return -1;
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}
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left = 0;
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right = p_map->user_count - 1;
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while (left < right)
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{
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mid = (left + right) / 2;
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if (uid < p_map->stat_list[mid].uid)
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{
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right = mid - 1;
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}
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else if (uid > p_map->stat_list[mid].uid)
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{
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left = mid + 1;
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}
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else // if (uid == p_map->stat_list[mid].uid)
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{
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left = mid;
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break;
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}
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}
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if (uid == p_map->stat_list[left].uid) // found
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{
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*pp_stat = &(p_map->stat_list[left]);
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return 1;
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}
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// not found
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*pp_stat = NULL;
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return 0;
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}
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