USE partsltd_prod;

DROP PROCEDURE IF EXISTS partsltd_prod.p_ph_user_eval;
DROP PROCEDURE IF EXISTS partsltd_prod.p_ph_calc_user;

DELIMITER //
CREATE PROCEDURE partsltd_prod.p_ph_calc_user (
	  IN a_guid BINARY(36)
    , IN a_ids_user TEXT
    , IN a_get_inactive_user BIT
    , IN a_ids_permission VARCHAR(4000)
    , IN a_debug BIT
)
BEGIN
    DECLARE v_has_filter_permission BIT;
    DECLARE v_has_filter_user BIT;
    DECLARE v_id_permission INT;
    DECLARE v_time_start TIMESTAMP(6);
	DECLARE v_ids_row_delete VARCHAR(500);
    DECLARE v_code_type_error_bad_data VARCHAR(200);
    DECLARE v_id_type_error_bad_data INT;
    DECLARE v_code_error_permission VARCHAR(200);
    DECLARE v_id_permission_required INT;
    DECLARE v_priority_access_level_required INT;
    DECLARE v_priority_access_level_view INT;
    
    SET v_time_start := CURRENT_TIMESTAMP(6);
    SET v_code_type_error_bad_data := (SELECT code FROM partsltd_prod.CORE_Msg_Error_Type WHERE code = 'BAD_DATA');
    SET v_id_type_error_bad_data := (SELECT id_type FROM partsltd_prod.CORE_Msg_Error_Type WHERE code = v_code_type_error_bad_data);
    SET v_code_error_permission := (SELECT code FROM partsltd_prod.CORE_Msg_Error_Type WHERE id_type = 2);
    SET v_priority_access_level_view := (SELECT priority FROM partsltd_prod.PH_Access_Level WHERE code = 'VIEW' LIMIT 1);
    
    CALL partsltd_prod.p_core_validate_guid ( a_guid );
    SET a_ids_user := TRIM(IFNULL(a_ids_user, ''));
    SET a_get_inactive_user := IFNULL(a_get_inactive_user, 0);
    SET a_ids_permission := TRIM(IFNULL(a_ids_permission, ''));
    SET a_debug := IFNULL(a_debug, 0);
    
    IF a_debug = 1 THEN
		SELECT
			  a_guid
            , a_ids_user
            , a_get_inactive_user
            , a_ids_permission
            , a_debug
		;
    END IF;
    
	DROP TABLE IF EXISTS tmp_Calc_User;
	DROP TABLE IF EXISTS tmp_User_Calc_User;
	DROP TABLE IF EXISTS tmp_Split_Calc_User;
    
	CREATE TEMPORARY TABLE tmp_Calc_User (
		  id_row INT PRIMARY KEY AUTO_INCREMENT NOT NULL
		, id_user INT NULL
		, id_permission_required INT NOT NULL
		, priority_access_level_required INT NOT NULL
        , is_super_user BIT NULL
		, priority_access_level_user INT NULL
		, has_access BIT
	);

	CREATE TEMPORARY TABLE tmp_User_Calc_User (
		id_user INT NOT NULL
        , is_super_user BIT NOT NULL
        -- , id_access_level INT
        , priority_access_level INT NOT NULL
	);
    
	CREATE TEMPORARY TABLE IF NOT EXISTS tmp_Msg_Error (
		  display_order INT NOT NULL PRIMARY KEY AUTO_INCREMENT
		, id_type INT NULL
        , code VARCHAR(50) NOT NULL
        , msg VARCHAR(4000) NOT NULL
	);
    
    CREATE TEMPORARY TABLE IF NOT EXISTS tmp_Split_Calc_User (
		substring VARCHAR(4000) NOT NULL
        , as_int INT NULL
	);
    DELETE FROM tmp_Split_Calc_User;
	
    SET v_has_filter_user = CASE WHEN a_ids_user = '' THEN 0 ELSE 1 END;
	SET a_ids_permission = REPLACE(a_ids_permission, '|', ',');
    SET v_has_filter_permission = CASE WHEN a_ids_permission = '' THEN 0 ELSE 1 END;
    -- SET v_id_access_level_view = (SELECT id_access_level FROM partsltd_prod.PH_Access_Level WHERE code = 'VIEW' LIMIT 1);


    -- Permission IDs
	IF NOT v_has_filter_permission THEN
        INSERT INTO tmp_Msg_Error (
              id_type
            , code
            , msg
        )
        SELECT
              v_id_type_error_bad_data
            , v_code_type_error_bad_data
            , 'Permission ID required.'
        ;
    ELSE
		CALL partsltd_prod.p_core_split(a_guid, a_ids_permission, ',', a_debug);
		
		INSERT INTO tmp_Split_Calc_User (
			  substring
			, as_int
		)
		SELECT 
			  substring
			, CONVERT(substring, DECIMAL(10,0)) AS as_int
		FROM partsltd_prod.CORE_Split_Temp
		WHERE 
                GUID = a_guid
			AND NOT ISNULL(substring)
			AND substring != ''
		;
		
		CALL partsltd_prod.p_core_clear_split( a_guid );
		
		-- Invalid or inactive
		IF EXISTS (
            SELECT PERM.id_permission 
            FROM tmp_Split_Calc_User t_S 
            LEFT JOIN partsltd_prod.PH_Permission PERM ON t_S.as_int = PERM.id_permission 
            WHERE 
                    ISNULL(t_S.as_int) 
                OR  ISNULL(PERM.id_permission) 
                OR  PERM.active = 0
        ) THEN
			INSERT INTO tmp_Msg_Error (
				  id_type
				, code
				, msg
			)
			SELECT
				  v_id_type_error_bad_data
				, v_code_type_error_bad_data
				, CONCAT('Invalid or inactive permission IDs: ', IFNULL(GROUP_CONCAT(t_S.substring SEPARATOR ', '), 'NULL'))
			FROM tmp_Split_Calc_User t_S
			LEFT JOIN partsltd_prod.PH_Permission PERM ON t_S.as_int = PERM.id_permission 
			WHERE 
				    ISNULL(t_S.as_int)
				OR  ISNULL(PERM.id_permission)
				OR  PERM.active = 0
			;
		ELSE 
            SELECT
                  PERM.id_permission
                , PERM.id_access_level_required
            INTO 
                  v_id_permission_required
                , v_priority_access_level_required
            FROM tmp_Split_Calc_User t_S 
            LEFT JOIN partsltd_prod.PH_Permission PERM ON t_S.as_int = PERM.id_permission 
            INNER JOIN partsltd_prod.PH_Access_Level AL ON PERM.id_access_level_required = AL.id_access_level
            ORDER BY AL.priority ASC
            LIMIT 1
            ;

            IF ISNULL(v_id_permission_required) THEN
                INSERT INTO tmp_Msg_Error (
                    id_type
                    , code
                    , msg
                )
                SELECT
                    v_id_type_error_bad_data
                    , v_code_type_error_bad_data
                    , 'Valid Permission ID required.'
                ;
            END IF;
		END IF;
	END IF;
    DELETE FROM tmp_Split_Calc_User;
    
	-- Users
	CALL partsltd_prod.p_core_split(a_guid, a_ids_user, ',', a_debug);
	
	INSERT INTO tmp_Split_Calc_User (
		  substring
		, as_int
	)
	SELECT 
		substring
		, CONVERT(substring, DECIMAL(10,0)) AS as_int
	FROM partsltd_prod.CORE_Split_Temp
	WHERE 
            GUID = a_guid
		AND NOT ISNULL(substring)
		AND substring != ''
	;
	
	CALL partsltd_prod.p_core_clear_split( a_guid );
	
	-- Invalid or inactive
	IF EXISTS (SELECT U.id_user FROM tmp_Split_Calc_User t_S LEFT JOIN partsltd_prod.PH_User U ON t_S.as_int = U.id_user WHERE ISNULL(t_S.as_int) OR ISNULL(U.id_user) OR (a_get_inactive_user = 0 AND U.active = 0)) THEN
		INSERT INTO tmp_Msg_Error (
			  id_type
			, code
			, msg
		)
		SELECT
			  v_id_type_error_bad_data
			, v_code_type_error_bad_data
			, CONCAT('Invalid or inactive user IDs: ', IFNULL(GROUP_CONCAT(t_S.substring SEPARATOR ', '), 'NULL'))
		FROM tmp_Split_Calc_User t_S
		LEFT JOIN partsltd_prod.PH_User U ON t_S.as_int = U.id_user 
		WHERE 
			    ISNULL(t_S.as_int) 
			OR  ISNULL(U.id_user)
			OR  (
				    a_get_inactive_user = 0
                AND U.active = 0
			)
		;
	ELSE
		IF NOT EXISTS (SELECT * FROM tmp_Split_Calc_User) THEN
			INSERT INTO tmp_Split_Calc_User (substring, as_int)
			VALUES ( '', NULL );
		END IF;
		
		IF a_debug = 1 THEN
			SELECT *
			FROM tmp_Split_Calc_User;
		END IF;
		
        INSERT INTO tmp_User_Calc_User (
			  id_user
            , is_super_user
            , priority_access_level
		)
        SELECT
			  U.id_user
            , IFNULL(U.is_super_user, 0) AS is_super_user
            , IFNULL(MIN(AL_U.priority), v_priority_access_level_view) AS priority_access_level
		FROM tmp_Split_Calc_User t_S
        INNER JOIN partsltd_prod.PH_User U ON t_S.as_int = U.id_user
		LEFT JOIN partsltd_prod.PH_User_Role_Link URL
			ON U.id_user = URL.id_user
			AND URL.active
		LEFT JOIN partsltd_prod.PH_Role_Permission_Link RPL
			ON URL.id_role = RPL.id_role
			AND RPL.active
		LEFT JOIN partsltd_prod.PH_Access_Level AL_U
			ON RPL.id_access_level = AL_U.id_access_level
			AND AL_U.active
		GROUP BY U.id_user
        ;
        			
		INSERT INTO tmp_Calc_User (
			  id_user
			, id_permission_required
			, priority_access_level_required
			, priority_access_level_user
			, is_super_user
		)
		SELECT 
			  t_UCU.id_user
			, v_id_permission_required
			, v_priority_access_level_required
			, t_UCU.priority_access_level AS priority_access_level_user
			, t_UCU.is_super_user AS is_super_user
		FROM tmp_User_Calc_User t_UCU
        ;
	END IF;    
    DELETE FROM tmp_Split_Calc_User;

    
    -- Calculated fields
	UPDATE tmp_Calc_User t_CU
	SET
		  t_CU.has_access = (
                (t_CU.is_super_user = 1)
            OR  (t_CU.priority_access_level_user <= t_CU.priority_access_level_required)
        )
	;
    
    -- Export data to staging table
    IF NOT EXISTS (SELECT * FROM tmp_Msg_Error) THEN
        START TRANSACTION;
			INSERT INTO partsltd_prod.PH_Calc_User_Temp (
				  guid
				, id_user
				, id_permission_required
				, priority_access_level_required
				, priority_access_level_user
				, is_super_user
				, has_access
			)
			SELECT
				  a_guid
				, t_CU.id_user
				, t_CU.id_permission_required
				, t_CU.priority_access_level_required
				, t_CU.priority_access_level_user
				, t_CU.is_super_user
                , t_CU.has_access
			FROM tmp_Calc_User t_CU
			;
		COMMIT;
    END IF;
    
    IF a_debug = 1 THEN
		SELECT * FROM tmp_Msg_Error;
		SELECT * FROM tmp_Calc_User;
        SELECT * FROM tmp_User_Calc_User;
		SELECT * FROM partsltd_prod.PH_Calc_User_Temp WHERE GUID = a_guid;
		CALL partsltd_prod.p_ph_clear_calc_user ( a_guid, a_debug );
    END IF;
    
    -- Clean up
	DROP TABLE IF EXISTS tmp_Calc_User;
	DROP TABLE IF EXISTS tmp_User_Calc_User;
    DELETE FROM tmp_Split_Calc_User;
    
    IF a_debug = 1 THEN
        CALL partsltd_prod.p_debug_timing_reporting( v_time_start );
    END IF;
END //
DELIMITER ;

/*

CALL partsltd_prod.p_ph_calc_user (
	'chips                               '  -- a_guid
	, 1										-- a_ids_user
	, 0										-- a_get_inactive_user
	, '2'									-- a_ids_permission
	, '1'									-- a_ids_access_level
    , 0										-- a_debug
);
CALL partsltd_prod.p_ph_calc_user (
	'chips                               '  -- a_guid
	, 1 									-- a_ids_user
	, 0 									-- a_get_inactive_user
	, '2'									-- a_ids_permission
	, '1'									-- a_ids_access_level
    , 0										-- a_debug
);
*/