USE PARTS;

/*

CALL p_shop_edit_user (
	'auth0|6582b95c895d09a70ba10fef', # a_id_user
	'', # a_name
	'', # a_email
    0 # a_email_verified
)

*/


-- Clear previous proc
DROP PROCEDURE IF EXISTS p_shop_edit_user;


DELIMITER //
CREATE PROCEDURE p_shop_edit_user (
	IN a_id_user VARCHAR(200),
    IN a_name VARCHAR(255),
	IN a_email VARCHAR(254),
    IN a_email_verified BIT
)
BEGIN
	-- Argument redeclaration
	-- Variable declaration
    DECLARE v_has_filter_user BIT;
    -- DECLARE v_now DATETIME;
    
    
	-- Argument validation + default values
	IF a_id_user IS NULL THEN
		SET a_id_user = '';
	ELSE
		SET a_id_user = TRIM(a_id_user);
    END IF;
	IF a_name IS NULL THEN
		SET a_name = '';
	ELSE
		SET a_name = TRIM(a_name);
    END IF;
	IF a_email IS NULL THEN
		SET a_email = '';
	ELSE
		SET a_email = TRIM(a_email);
    END IF;
	IF a_email_verified IS NULL THEN
		SET a_email_verified = 0;
    END IF;
    
    -- Temporary tables
    DROP TABLE IF EXISTS tmp_Msg_Error;
    DROP TABLE IF EXISTS tmp_Shop_User;
    
    CREATE TABLE tmp_Shop_User (
		id_user VARCHAR(200) NOT NULL,
        CONSTRAINT FK_tmp_Shop_User_id_user
			FOREIGN KEY (id_user)
			REFERENCES Shop_User(id_user),
        active BIT NOT NULL
    );
    
    CREATE TABLE tmp_Msg_Error (
		display_order INT NOT NULL PRIMARY KEY AUTO_INCREMENT,
		id_type INT NOT NULL,
        # code VARCHAR(50) NOT NULL,
        # CONSTRAINT chk_tmp_Msg_Error_code CHECK (code IN (SELECT code FROM Shop_Msg_Error_Type)),
        CONSTRAINT FK_tmp_Msg_Error_id_type
			FOREIGN KEY (id_type)
			REFERENCES Shop_Msg_Error_Type(id_type),
		msg VARCHAR(4000) NOT NULL
    );
    
    
    -- Parse filters
    SET v_has_filter_user = CASE WHEN a_id_user = '' THEN 0 ELSE 1 END;
    
    
    -- User
    IF v_has_filter_user THEN
        INSERT INTO tmp_Shop_User (
			id_user,
			active
		)
        SELECT id_user,
			active
		FROM Shop_User
        WHERE id_user LIKE CONCAT('%', a_id_user, '%')
			AND active
		LIMIT 1
        ;
        
		IF NOT EXISTS (SELECT id_user FROM tmp_Shop_User LIMIT 1) THEN
			INSERT INTO Shop_User (
				id_user,
                name,
                email,
                email_verified
            )
            VALUES (
				a_id_user,
                a_name,
                a_email,
                a_email_verified
            );
            
            INSERT INTO tmp_Shop_User (
				id_user,
				active
			)
			SELECT id_user,
				active
			FROM Shop_User
			WHERE id_user LIKE CONCAT('%', a_id_user, '%')
				AND active
			LIMIT 1
            ;
        END IF;
        
        SET a_id_user := (SELECT id_user FROM tmp_Shop_User LIMIT 1);
	ELSE
		INSERT INTO tmp_Msg_Error (
			id_type,
            msg
		)
        VALUES (
			 (SELECT id_type FROM Shop_Msg_Error_Type WHERE code = 'BAD_DATA' LIMIT 1), 
            'No user ID provided.'
		)
        ;
    END IF;
    
    
    /*
    IF NOT EXISTS (SELECT msg FROM tmp_Msg_Error LIMIT 1) THEN
    END IF;
    */
    
    
    -- Returns
    # User
    SELECT *
    FROM tmp_Shop_User
    ;
    
    # Errors
    SELECT *
    FROM tmp_Msg_Error
    ;
    
    /*
    # Return arguments for test
    SELECT a_id_user,
		a_name,
        a_email,
        a_email_verified
    ;
    */
    
    -- Clean up
    DROP TABLE IF EXISTS tmp_Msg_Error;
    DROP TABLE IF EXISTS tmp_Shop_User;
END //
DELIMITER ;



/*

CALL p_shop_edit_user (
	'',
	'',
	'',
    0
)

*/