<?php
/**
 * DBAdmin.php
 *
 * 此檔案針對整體資料庫的功能，像是建立此資料庫、建立表格、清空...等等
 */

namespace UElearning\Database;

require_once UELEARNING_LIB_ROOT.'/Database/Database.php';
require_once UELEARNING_LIB_ROOT.'/Database/Exception.php';

/**
 * 資料庫整體管理
 * 
 * 對資料庫的管理操作。
 * 
 * 建立資料庫連結，若直接使用`config.php`設定的參數，使用以下即可: 
 *     
 *     require_once __DIR__.'/config.php';
 *     require_once UELEARNING_LIB_ROOT.'Database/DBAdmin.php';
 *     use UElearning\Database;
 *     use UElearning\Exception;
 *     $db = new Database\DBAdmin();
 *     
 * 若要自行指定連結參數，請使用:
 *     
 *     use UElearning\Database;
 *     $db = new Database\DBAdmin(array(
 *         'type' => 'mysql',
 *         'host' => 'localhost',
 *         'port' => '3306',
 *         'user' => 'user',
 *         'password' => '123456',
 *         'dbname' => 'chu-elearning',
 *         'prefix' => 'chu_'
 *         ));
 * 
 * 可參考以下範例: 
 * 
 *     require_once __DIR__.'/config.php';
 *     require_once UELEARNING_LIB_ROOT.'Database/DBAdmin.php';
 *     use UElearning\Database;
 *     
 *     try {
 *         $db = new Database\DBAdmin();
 *     } catch (Database\DatabaseNoSupportException $e) {
 *         echo 'No Support in ',  $e->getType();
 *     } catch (Exception $e) {
 *         echo 'Caught other exception: ',  $e->getMessage();
 *     }
 *
 * @author          Yuan Chiu <chyuaner@gmail.com>
 * @version         2.0.0
 * @package         UElearning
 * @subpackage      Database
 */
class DBAdmin extends Database {
    
    /**
     * 建立所有所需的資料表
     * 
     * @since 2.0.0 
     */ 
    public function createAllTable() {
        
        // 使用的資料庫系統為MySQL
        if($this->db_type == 'mysql') {
            
            // 所有要跑的SQL指令陣列
            $execSql = array(

"CREATE TABLE IF NOT EXISTS `".$this->db_prefix."ABelong` (
  `TID` int(10) unsigned NOT NULL,
  `AID` int(10) unsigned NOT NULL
) ENGINE=InnoDB DEFAULT CHARSET=utf8 COLLATE=utf8_unicode_ci;",
                
"CREATE TABLE IF NOT EXISTS `".$this->db_prefix."AGroup` (
  `GID` varchar(30) COLLATE utf8_unicode_ci NOT NULL,
  `GName` varchar(100) COLLATE utf8_unicode_ci DEFAULT NULL,
  `GMemo` tinytext COLLATE utf8_unicode_ci,
  PRIMARY KEY (`GID`)
) ENGINE=InnoDB DEFAULT CHARSET=utf8 COLLATE=utf8_unicode_ci;",
                
"CREATE TABLE IF NOT EXISTS `".$this->db_prefix."Area` (
  `AID` int(10) unsigned NOT NULL AUTO_INCREMENT COMMENT '區域編號',
  `AName` varchar(100) COLLATE utf8_unicode_ci DEFAULT NULL COMMENT '區域名稱',
  `AMapID` varchar(1000) COLLATE utf8_unicode_ci DEFAULT NULL COMMENT '區域地圖編號',
  `AIntroduction` tinytext COLLATE utf8_unicode_ci,
  PRIMARY KEY (`AID`)
) ENGINE=InnoDB DEFAULT CHARSET=utf8 COLLATE=utf8_unicode_ci AUTO_INCREMENT=1 ;",

"CREATE TABLE IF NOT EXISTS `".$this->db_prefix."CGroup` (
  `CID` varchar(30) COLLATE utf8_unicode_ci NOT NULL,
  `CName` varchar(100) COLLATE utf8_unicode_ci DEFAULT NULL,
  `CMemo` tinytext COLLATE utf8_unicode_ci,
  PRIMARY KEY (`CID`)
) ENGINE=InnoDB DEFAULT CHARSET=utf8 COLLATE=utf8_unicode_ci;",

"CREATE TABLE IF NOT EXISTS `".$this->db_prefix."Edge` (
  `Ti` int(11) NOT NULL,
  `Tj` int(11) NOT NULL,
  `MoveTime` int(4) NOT NULL COMMENT '移動時間(分鐘)',
  `Destance` int(11) NOT NULL COMMENT '距離(M)'
) ENGINE=InnoDB DEFAULT CHARSET=utf8 COLLATE=utf8_unicode_ci;",

"CREATE TABLE IF NOT EXISTS `".$this->db_prefix."LearnActivity` (
  `LsID` int(10) NOT NULL,
  `ThID` int(10) NOT NULL COMMENT '主題編號',
  `CID` varchar(30) COLLATE utf8_unicode_ci NOT NULL COMMENT '班級名稱',
  `StartTime` timestamp NOT NULL DEFAULT CURRENT_TIMESTAMP COMMENT '開始時間',
  `Delay` int(11) NOT NULL COMMENT '實際狀態延誤(分)',
  PRIMARY KEY (`LsID`)
) ENGINE=InnoDB DEFAULT CHARSET=utf8 COLLATE=utf8_unicode_ci;",

"CREATE TABLE IF NOT EXISTS `".$this->db_prefix."Material` (
  `MID` int(10) unsigned NOT NULL COMMENT '教材內部編號',
  `TID` int(10) unsigned NOT NULL COMMENT '標的內部編號',
  `MMode` int(1) NOT NULL DEFAULT '0' COMMENT '教材模式',
  `MUrl` varchar(1000) COLLATE utf8_unicode_ci NOT NULL COMMENT '教材檔案路徑',
  PRIMARY KEY (`MID`)
) ENGINE=InnoDB DEFAULT CHARSET=utf8 COLLATE=utf8_unicode_ci;",

"CREATE TABLE IF NOT EXISTS `".$this->db_prefix."Recommand` (
  `TID` int(3) NOT NULL COMMENT '標的內部編號',
  `UID` varchar(30) COLLATE utf8_unicode_ci NOT NULL COMMENT '使用者帳號',
  `gradation` int(11) NOT NULL COMMENT '系統推薦標地順序'
) ENGINE=InnoDB DEFAULT CHARSET=utf8 COLLATE=utf8_unicode_ci;",

"CREATE TABLE IF NOT EXISTS `".$this->db_prefix."Study` (
  `SID` int(10) NOT NULL AUTO_INCREMENT,
  `TID` int(10) NOT NULL COMMENT '標的內部編號',
  `UID` int(30) NOT NULL COMMENT '使用者名稱',
  `LMode` int(11) NOT NULL COMMENT '學習導引模式',
  `MMode` int(11) NOT NULL COMMENT '教材模式',
  `In_TargetTime` timestamp NOT NULL DEFAULT CURRENT_TIMESTAMP COMMENT '進入標的時間',
  `Out_TargetTime` timestamp NOT NULL DEFAULT '0000-00-00 00:00:00' COMMENT '離開標的時間',
  PRIMARY KEY (`SID`)
) ENGINE=InnoDB DEFAULT CHARSET=utf8 COLLATE=utf8_unicode_ci AUTO_INCREMENT=1 ;",

"CREATE TABLE IF NOT EXISTS `".$this->db_prefix."StudyQuestion` (
  `UID` varchar(30) COLLATE utf8_unicode_ci NOT NULL,
  `TID` int(10) NOT NULL,
  `QID` int(11) NOT NULL,
  `UAns` int(11) NOT NULL,
  `CAns` int(11) NOT NULL
) ENGINE=InnoDB DEFAULT CHARSET=utf8 COLLATE=utf8_unicode_ci;",

"CREATE TABLE IF NOT EXISTS `".$this->db_prefix."Target` (
  `TID` int(10) unsigned NOT NULL COMMENT '標的內部編號',
  `TNum` int(10) DEFAULT NULL COMMENT '標的地圖上的編號',
  `TName` varchar(100) COLLATE utf8_unicode_ci DEFAULT NULL COMMENT '標的名稱',
  `TMapID` varchar(1000) COLLATE utf8_unicode_ci DEFAULT NULL COMMENT '地圖圖檔名稱',
  `TLearnTime` int(4) unsigned NOT NULL COMMENT '預估此標的應該學習的時間',
  `PLj` int(11) unsigned NOT NULL COMMENT '學習標的的人數限制',
  `Mj` int(11) unsigned DEFAULT NULL COMMENT '目前人數',
  `S` int(11) unsigned DEFAULT NULL COMMENT '學習標的飽和率上限',
  `Fi` int(11) DEFAULT NULL COMMENT '學習標的滿額指標',
  PRIMARY KEY (`TID`)
) ENGINE=InnoDB DEFAULT CHARSET=utf8 COLLATE=utf8_unicode_ci;",

"CREATE TABLE IF NOT EXISTS `".$this->db_prefix."TBelong` (
  `TID` int(10) NOT NULL,
  `ThID` int(10) NOT NULL,
  `Weights` int(3) NOT NULL COMMENT '當次學習主題的某一個學習標的之權重'
) ENGINE=InnoDB DEFAULT CHARSET=utf8 COLLATE=utf8_unicode_ci;",

"CREATE TABLE IF NOT EXISTS `".$this->db_prefix."Theme` (
  `ThID` int(10) unsigned NOT NULL AUTO_INCREMENT,
  `ThName` varchar(100) COLLATE utf8_unicode_ci NOT NULL COMMENT '主題名稱',
  `ThLearnTotal` int(4) NOT NULL COMMENT '學習此主題要花的總時間(m)',
  `ThIntroduction` tinytext COLLATE utf8_unicode_ci COMMENT '介紹',
  PRIMARY KEY (`ThID`)
) ENGINE=InnoDB DEFAULT CHARSET=utf8 COLLATE=utf8_unicode_ci AUTO_INCREMENT=1 ;",

"CREATE TABLE IF NOT EXISTS `".$this->db_prefix."User` (
  `UID` varchar(30) COLLATE utf8_unicode_ci NOT NULL COMMENT '使用者帳號',
  `UPassword` varchar(100) COLLATE utf8_unicode_ci NOT NULL COMMENT '密碼',
  `GID` varchar(30) COLLATE utf8_unicode_ci NOT NULL COMMENT '使用者群組',
  `CID` varchar(30) COLLATE utf8_unicode_ci DEFAULT NULL COMMENT '使用者班級',
  `UEnabled` tinyint(1) NOT NULL DEFAULT '1' COMMENT '帳號啟用狀態',
  `UBuild_Time` timestamp NOT NULL DEFAULT CURRENT_TIMESTAMP COMMENT '帳號建立時間',
  `LMode` enum('line-learn','harf-line-learn','non-line-learn') COLLATE utf8_unicode_ci DEFAULT NULL COMMENT '學習導引模式',
  `MMode` int(11) DEFAULT NULL COMMENT '教材模式',
  `UNickname` varchar(50) COLLATE utf8_unicode_ci DEFAULT NULL COMMENT '暱稱',
  `UReal_Name` varchar(50) COLLATE utf8_unicode_ci DEFAULT NULL COMMENT '真實姓名',
  `UEmail` varchar(100) COLLATE utf8_unicode_ci DEFAULT NULL COMMENT '使用者email',
  `UMemo` tinytext COLLATE utf8_unicode_ci COMMENT '備註',
  PRIMARY KEY (`UID`)
) ENGINE=InnoDB DEFAULT CHARSET=utf8 COLLATE=utf8_unicode_ci;",

"CREATE TABLE IF NOT EXISTS `".$this->db_prefix."UserSession` (
  `UsID` int(10) unsigned NOT NULL AUTO_INCREMENT,
  `UToken` varchar(50) COLLATE utf8_unicode_ci DEFAULT NULL COMMENT '此登入階段的token',
  `UID` varchar(30) COLLATE utf8_unicode_ci NOT NULL,
  `UAgent` varchar(10) COLLATE utf8_unicode_ci DEFAULT NULL COMMENT '使用哪個裝置登入',
  `ULoginDate` timestamp NOT NULL DEFAULT CURRENT_TIMESTAMP COMMENT '登入時間',
  `ULogoutDate` timestamp NULL DEFAULT NULL COMMENT '登出時間',
  PRIMARY KEY (`UsID`)
) ENGINE=InnoDB DEFAULT CHARSET=utf8 COLLATE=utf8_unicode_ci AUTO_INCREMENT=1 ;"
            );
            
            // 執行此SQL指令
            foreach ($execSql as $value ){
                $this->connDB->exec($value);
            };
        }
        else {
            throw new Exception\DatabaseNoSupportException($this->db_type);
        }
    }
}