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#include <stdlib.h>
#include <string.h>

#include "user.h"
#include "sdbm.h"
#include "nick.h"

struct user_t *users;

struct user_time_t *users_time;

void user_init() {
	users = malloc(sizeof(struct user_t) * USERS_MAX);
	memset(users, 0, sizeof(struct user_t) * USERS_MAX);
}

struct user_t *user_get(char *nick) {
	unsigned long hash = sdbm(nick);
	int index = hash % USERS_MAX;

	struct user_t *user = &users[index];
	/* If hash doesn't match and there exists another user, fetch it. */
	while(user->hash != hash && user->next) user = user->next;
	/* If hash still doesn't match and the user exists, add a new user. */
	if(user->hash != hash && user->nick) {
		struct user_t *temp_user = malloc(sizeof(struct user_t));
		user->next = temp_user;
		user = temp_user;
		/* Initialize nick to NULL so the user can be correctly added. */
		user->nick = NULL;
	}
	/* Add the new user data to the current pointer if none was found. */
	if(!user->nick) {
		user->hash = hash;
		user->nick = strdup(nick);
		memset(user->lines, 0, 24*4 * sizeof(unsigned long));
		user->words = user->characters = user->kicks = user->kicked = user->monolog_lines = user->monologs = 0;
		user->seen_first = user->seen_last = user->last_join = user->time_total = 0;
		user->next = NULL;
		char *_nick = nick_get(nick);
		user->real_user = strcmp(nick, _nick) ? user_get(_nick) : NULL;
	}

	return (user->real_user ? user->real_user : user);
}

void user_free() {
	struct user_t *user;
	for(int i = 0; i < USERS_MAX; i++) {
		if(users[i].nick)
			free(users[i].nick);
		user = users[i].next;
		while(user) {
			struct user_t *temp = user->next;
			free(user->nick);
			free(user);
			user = temp;
		}
	}
	free(users);
}

void user_time_init() {
	users_time = malloc(sizeof(struct user_time_t) * USERS_MAX);
	memset(users_time, 0, sizeof(struct user_time_t) * USERS_MAX);
}

struct user_time_t *user_time_get(char *nick, int ignore_real) {
	unsigned long hash = sdbm(nick);
	int index = hash % USERS_MAX;

	struct user_time_t *user = &users_time[index];
	/* If hash doesn't match and there exists another user, fetch it. */
	while(user->hash != hash && user->next) user = user->next;
	/* If hash still doesn't match and the user exists, add a new user. */
	if(user->hash != hash && user->nick) {
		struct user_time_t *temp_user = malloc(sizeof(struct user_time_t));
		user->next = temp_user;
		user = temp_user;
		/* Initialize nick to NULL so the user can be correctly added. */
		user->nick = NULL;
	}
	/* Add the new user data to the current pointer if none was found. */
	if(!user->nick) {
		user->hash = hash;
		user->nick = strdup(nick);
		user->seen_first = user->seen_last = user->last_join = user->time_total = 0;
		user->real_user = user->next = NULL;
	}

	return (!ignore_real && user->real_user ? user->real_user : user);
}

void user_time_free() {
	struct user_time_t *user;
	for(int i = 0; i < USERS_MAX; i++) {
		if(users_time[i].nick)
			free(users_time[i].nick);
		user = users_time[i].next;
		while(user) {
			struct user_time_t *temp = user->next;
			free(user->nick);
			free(user);
			user = temp;
		}
	}
	free(users_time);
}