<?php
/**
 * @file gnuboard.php
 * @date 2018-05-27
 * @author Go Namhyeon <gnh1201@gmail.com>
 * @brief Database Helper for Gnuboard 4, Gnuboard 5
 */

// get database prefix
if(!function_exists("gnb_get_db_prefix")) {
	function gnb_get_db_prefix($version=4) {
		return ($version > 4) ? "g5_" : "g4_";
	}
}

// get table
if(!function_exists("gnb_get_db_table")) {
	function gnb_get_db_table($tablename) {
		return (gnb_get_db_prefix() . $tablename);
	}
}

// get write table
if(!function_exists("gnb_get_write_table")) {
	function gnb_get_write_table($tablename, $version=4) {
		$write_prefix = gnb_get_db_prefix() . "write_";
		$write_table = $write_prefix . $tablename;
		return $write_table;
	}
}

// get write next
if(!function_exists("gnb_get_write_next")) {
	function gnb_get_write_next($tablename) {
		$row = exec_db_fetch("select min(wr_num) as min_wr_num from " . gnb_get_write_table($tablename));
		return (intval(get_value_in_array("min_wr_num", $row, 0)) - 1);
	}
}

// write post
if(!function_exists("gnb_write_post")) {
	function gnb_write_post($tablename, $data=array(), $version=4) {
		$result = 0;

		$write_table = gnb_get_write_table($tablename);
		$mb_id = get_current_user_name();

		// load helpers
		loadHelper("networktool");
		loadHelper("naturename.kr");

		$write_fields = array();
		$write_default_fields = array(
			"mb_id" => $mb_id,
			"wr_num" => gnb_get_write_next($tablename),
			"wr_reply" => "",
			"wr_parent" => "",
			"wr_comment_reply" => "",
			"ca_name" => "",
			"wr_option" => "",
			"wr_subject" => make_random_id(),
			"wr_content" => make_random_id(),
			"wr_link1" => "",
			"wr_link2" => "",
			"wr_link1_hit" => 0,
			"wr_link2_hit" => 0,
			"wr_trackback" => "",
			"wr_hit" => 0,
			"wr_good" => 0,
			"wr_nogood" => 0,
			"wr_password" => gnb_get_password(make_random_id()),
			"wr_name" => naturename_kr_get_generated_name(),
			"wr_email" => "",
			"wr_homepage" => "",
			"wr_datetime" => get_current_datetime(),
			"wr_last" => get_current_datetime(),
			"wr_ip" => get_network_client_addr(),
			"wr_1" => "",
			"wr_2" => "",
			"wr_3" => "",
			"wr_4" => "",
			"wr_5" => "",
			"wr_6" => "",
			"wr_7" => "",
			"wr_8" => "",
			"wr_9" => "",
			"wr_10" => "",
		);

		foreach($write_default_fields as $k=>$v) {
			if(in_array($k, array("mb_id", "wr_num"))) {
				$write_fields[$k] = $v;
			} else {
				$write_fields[$k] = array_key_empty($k, $data) ? $v : $data[$k];
			}
		}

		foreach($data as $k=>$v) {
			if(!in_array($k, $write_default_fields)) {
				$write_fields[$k] = $v;
			}
		}

		if(count($write_fields) > 0) {
			$sql = get_bind_to_sql_insert($write_table, $write_fields);
			if(exec_db_query($sql, $write_fields)) {
				$result = get_db_last_id();
			}
		}

		return $result;
	}
}

if(!function_exists("gnb_get_posts")) {
	function gnb_get_posts($table_name, $page=1, $limit=20, $options=array()) {
		$sql = "select * from " . gnb_get_write_table($table_name) . " order by wr_id desc" . get_page_range($page, $limit);
		return exec_db_fetch_all($sql);
	}
}

if(!function_exists("gnb_get_post_by_id")) {
	function gnb_get_post_by_id($table_name, $post_id) {
		$sql = "select * from " . gnb_get_write_table($table_name) . " where wr_id = :wr_id";
		return exec_db_fetch($sql, array(
			"wr_id" => $post_id
		));
	}
}

if(!function_exists("gnb_set_post_parameters")) {
	function gnb_set_post_parameters($tablename, $wr_id, $bind=array()) {
		$flag = false;
		$excludes = array("wr_id");

		$write_table = gnb_get_write_table($tablename);
		$bind['wr_id'] = get_value_in_array("wr_id", $bind, $wr_id);

		$sql = "update " . $write_table . " set " . get_bind_to_sql_update_set($bind, $excludes) . " where wr_id = :wr_id";
		$flag = exec_db_query($sql, $bind);

		return $flag;
	}
}

// get member data
if(!function_exists("gnb_get_member")) {
	function gnb_get_member($user_name, $tablename="member") {
		$result = array();

		$bind = array(
			"mb_id" => $user_name,
		);

		$member_table = gnb_get_db_table($tablename);
		$result = exec_db_fetch("select * from " . $member_table . " where mb_id = :mb_id", $bind);

		return $result;
	}
}

// get password
if(!function_exists("gnb_get_password")) {
	function gnb_get_password($password) {
		$bind = array(
			"password" => $password,
		);
		$row = exec_db_fetch("select password(:password) as pass", $bind);
		return get_value_in_array("pass", $row, "");
	}
}

// get config
if(!function_exists("gnb_get_config")) {
	function gnb_get_config($tablename="config") {
		$result = array();

		$config_table = gnb_get_db_table($tablename);
		$result = exec_db_fetch("select * from " . $config_table);

		return $result;
	}
}

// run login process
if(!function_exists("gnb_process_safe_login")) {
	function gnb_process_safe_login($user_name, $user_password) {
		$result = false;
		$mb = gnb_get_member($user_name);

		if(!array_key_empty("mb_id", $mb)) {
			$user_profile = array(
				"user_id" => $mb['mb_no'],
				"user_password" => get_password(gnb_get_password($mb['mb_password'])),
			);
			$result = process_safe_login($mb['mb_id'], gnb_get_password($mb['mb_password']), $user_profile);
		}
		
		return $result;
	}
}

// run join member
if(!function_exists("gnb_join_member")) {
	function gnb_join_member($user_name, $user_password, $data=array(), $tablename="member") {
		$result = false;

		$member_table = gnb_get_db_table($tablename);
		$gnb_config = gnb_get_config();

		// load helpers
		loadHelper("networktool");
		loadHelper("naturename.kr");

		// get member info
		$mb = gnb_get_member($user_name);

		// allow join if not exists duplicated members
		if(array_key_empty("mb_id", $mb)) {
			$member_fields = array();
			$member_default_fields = array(
				"mb_id" => $user_name,
				"ug_id" => "",
				"mb_password" => gnb_get_password($user_password),
				"mb_name" => naturename_kr_get_generated_name(),
				"mb_jumin" => "",
				"mb_sex" => "",
				"mb_birth" => "",
				"mb_nick" => get_generated_name(),
				"mb_nick_date" => "",
				"mb_password_q" => "",
				"mb_password_a" => "",
				"mb_email" => "",
				"mb_homepage" => "",
				"mb_tel" => "",
				"mb_hp" => "",
				"mb_zip1" => "",
				"mb_zip2" => "",
				"mb_addr1" => "",
				"mb_addr2" => "",
				"mb_addr3" => "",
				"mb_addr_jibeon" => "",
				"mb_signature" => "",
				"mb_profile" => "",
				"mb_today_login" => get_current_datetime(),
				"mb_datetime" => get_current_datetime(),
				"mb_ip" => get_network_client_addr(),
				"mb_level" => get_value_in_array("cf_register_level", $gnb_config),
				"mb_recommend" => "",
				"mb_login_ip" => get_network_client_addr(),
				"mb_mailling" => "",
				"mb_sms" => "",
				"mb_open" => "",
				"mb_open_date" => get_current_datetime(),
				"mb_1" => "",
				"mb_2" => "",
				"mb_3" => "",
				"mb_4" => "",
				"mb_5" => "",
				"mb_6" => "",
				"mb_7" => "",
				"mb_8" => "",
				"mb_9" => "",
				"mb_10" => "",
			);

			foreach($member_default_fields as $k=>$v) {
				if(in_array($k, array("mb_id", "mb_password"))) {
					$member_fields[$k] = $v;
				} else {
					$member_fields[$k] = array_key_empty($k, $data) ? $v : $data[$k];
				}
			}
				
			foreach($data as $k=>$v) {
				if(!in_array($k, $member_default_fields)) {
					$member_fields[$k] = $v;
				}
			}

			if(count($member_fields) > 0) {
				$sql = get_bind_to_sql_insert($member_table, $member_fields);
				$result = exec_db_query($sql, $member_fields);
			}
		}

		return $result;
	}
}

if(!function_exists("gnb_make_pipelined_data")) {
	function gnb_make_pipelined_data($data, $delimiter="|") {
		foreach($data as $k=>$v) {
			$data[$k] = str_replace($delimiter, " ", $v);
		}
		return implode($delimiter, $data);
	}
}