-- Galaxy Object User-Defined Attributes/Tags for OPC UA Server
-- Returns user-defined (dynamic) attributes for automation objects.
-- These are the attributes defined on templates and inherited by instances
-- via the derived_from_gobject_id chain (e.g., MachineID, MoveInFlag).
--
-- Use full_tag_reference for read/write operations against the runtime.
-- Join with hierarchy.sql results on gobject_id to place attributes in the OPC UA browse tree.
--
-- For system/primitive attributes as well, see attributes_extended.sql.
--
-- Array dimensions are extracted from the mx_value hex string on the template's
-- dynamic_attribute row (bytes 5-6, little-endian uint16 at hex positions 13-16).
--
-- Data types (mx_data_type):
--   1 = Boolean, 2 = Integer (Int32), 3 = Float (Single), 4 = Double,
--   5 = String, 6 = Time (DateTime), 7 = ElapsedTime (TimeSpan),
--   8 = (reference), 13 = (enumeration), 14 = (custom), 15 = InternationalizedString, 16 = (custom)

;WITH template_chain AS (
    -- Start from each non-template instance
    SELECT g.gobject_id, g.derived_from_gobject_id, 0 AS depth
    FROM gobject g
    WHERE g.is_template = 0
    UNION ALL
    -- Walk up the template derivation chain
    SELECT tc.gobject_id, t.derived_from_gobject_id, tc.depth + 1
    FROM template_chain tc
    INNER JOIN gobject t ON t.gobject_id = tc.derived_from_gobject_id
    WHERE tc.derived_from_gobject_id <> 0 AND tc.depth < 10
)
SELECT DISTINCT
    g.gobject_id,
    g.tag_name,
    da.attribute_name,
    g.tag_name + '.' + da.attribute_name
        + CASE WHEN da.is_array = 1 THEN '[]' ELSE '' END
        AS full_tag_reference,
    da.mx_data_type,
    dt.description AS data_type_name,
    da.is_array,
    CASE WHEN da.is_array = 1
         THEN CONVERT(int, CONVERT(varbinary(2),
              SUBSTRING(da.mx_value, 15, 2) + SUBSTRING(da.mx_value, 13, 2), 2))
         ELSE NULL
    END AS array_dimension,
    da.mx_attribute_category,
    da.security_classification
FROM template_chain tc
INNER JOIN dynamic_attribute da
    ON da.gobject_id = tc.derived_from_gobject_id
INNER JOIN gobject g
    ON g.gobject_id = tc.gobject_id
INNER JOIN template_definition td
    ON td.template_definition_id = g.template_definition_id
LEFT JOIN data_type dt
    ON dt.mx_data_type = da.mx_data_type
WHERE td.category_id IN (1, 3, 4, 10, 11, 13, 17, 24, 26)
    AND g.is_template = 0
    AND g.deployed_package_id <> 0
    AND da.attribute_name NOT LIKE '[_]%'
    AND da.attribute_name NOT LIKE '%.Description'
    AND da.mx_attribute_category IN (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 24)
ORDER BY g.tag_name, da.attribute_name;
