DROP TABLE IF EXISTS TA_BADGE_CHALLENGE;
DROP TABLE IF EXISTS TA_CHALLENGE;
DROP TABLE IF EXISTS TA_BADGE;

DROP TABLE IF EXISTS MV_HIGHSCORE;

SET NAMES 'utf8';
SET CHARACTER SET 'utf8';

CREATE TABLE TA_BADGE (
	sp_oid				integer 		NOT NULL AUTO_INCREMENT,
	sp_badge_id			varchar(32) 	not NULL,
	sp_badge_key		varchar(32)		default NULL,
	sp_nickname			varchar(32)		default NULL,
	sp_password			varchar(64)		default NULL,
	sp_email			varchar(100)	default NULL,
	sp_register_time	timestamp		default 0,
	sp_last_seen		timestamp		default 0,
	sp_comment			varchar(300)	default NULL,
	sp_icon				blob			default NULL,
	CONSTRAINT PK_OID PRIMARY KEY (sp_oid),
	UNIQUE (sp_badge_id)
);

CREATE TABLE TA_CHALLENGE (
	sp_oid				integer 		NOT NULL AUTO_INCREMENT,
	sp_id				varchar(32)		not NULL,
	sp_class			varchar(32)		default NULL,				
	sp_title			varchar(32)		not NULL,
	sp_description		varchar(1000)	not NULL,
	sp_points			integer			not NULL,
	sp_credits			varchar(200)	default NULL,
	sp_create_time		TIMESTAMP 		DEFAULT CURRENT_TIMESTAMP,
	sp_answer1			varchar(50)		default NULL,
	sp_answer2			varchar(50)		default NULL,
	sp_answer3			varchar(50)		default NULL,
	sp_answer4			varchar(50)		default NULL,
	sp_correct_answer	integer			default NULL,
	sp_image			blob			default NULL,
	sp_comment			varchar(300)	default NULL,	
	CONSTRAINT PK_OID PRIMARY KEY (sp_oid),
	UNIQUE (sp_id)
);

CREATE TABLE TA_BADGE_CHALLENGE (
	fk_badge			integer			not null,
	fk_challenge		integer			not null,
	sp_comment			varchar(300)	default NULL,
	sp_score			integer			not NULL,
	sp_answer			integer			NOT NULL,
	sp_time_done		timestamp		default CURRENT_TIMESTAMP,
	sp_data				blob			default NULL,
	CONSTRAINT PK_OID PRIMARY KEY (fk_badge, fk_challenge)
);

-- MVs
USE `rad1o`;
DROP procedure IF EXISTS `refreshHighscore`;

DELIMITER $$
USE `rad1o`$$
CREATE PROCEDURE `refreshHighscore` ()
BEGIN
	DROP TABLE IF EXISTS MV_HIGHSCORE;

	create TABLE MV_HIGHSCORE AS
	select  @currow := @currow + 1 as rank,
			badgeid,
			nickname,
			image,
			score,
			challenges_played
	from (
		select  b.sp_badge_id      as badgeid,
				b.sp_nickname      as nickname,
				b.sp_icon          as image,
				sum(bc.sp_score)   as score,
				count(bc.fk_badge) as challenges_played
		from TA_BADGE_CHALLENGE bc
		inner join TA_BADGE b on bc.fk_badge = b.sp_oid
		group by bc.fk_badge
		order by score desc
	) scores
	JOIN (SELECT @currow := 0) r
	;
END
$$

DELIMITER ;