-- Migration: 047_CreateComplexTableFunctions
-- Inline TVFs to extract complex object arrays from Search.Criteria JSON
-- Pattern: CTE pre-filters valid JSON, OPENJSON...WITH for type-safe extraction

-- fn_GetSearchComponentLots: Extract ComponentLotNumbers array of objects
IF OBJECT_ID('dbo.fn_GetSearchComponentLots', 'IF') IS NOT NULL
    DROP FUNCTION dbo.fn_GetSearchComponentLots;
GO

CREATE FUNCTION dbo.fn_GetSearchComponentLots(@SearchId INT)
RETURNS TABLE
AS
RETURN
(
    WITH ValidSearch AS (
        SELECT Criteria
        FROM dbo.Search
        WHERE ID = @SearchId
          AND Criteria IS NOT NULL
          AND ISJSON(Criteria) = 1
    )
    SELECT j.LotNumber, j.ItemNumber
    FROM ValidSearch s
    CROSS APPLY OPENJSON(s.Criteria, '$.ComponentLotNumbers')
        WITH (
            LotNumber VARCHAR(30) '$.LotNumber',
            ItemNumber VARCHAR(128) '$.ItemNumber'
        ) j
);
GO

-- fn_GetSearchPartOperations: Extract PartOperations array of objects
IF OBJECT_ID('dbo.fn_GetSearchPartOperations', 'IF') IS NOT NULL
    DROP FUNCTION dbo.fn_GetSearchPartOperations;
GO

CREATE FUNCTION dbo.fn_GetSearchPartOperations(@SearchId INT)
RETURNS TABLE
AS
RETURN
(
    WITH ValidSearch AS (
        SELECT Criteria
        FROM dbo.Search
        WHERE ID = @SearchId
          AND Criteria IS NOT NULL
          AND ISJSON(Criteria) = 1
    )
    SELECT j.ItemNumber, j.OperationNumber, j.MisNumber, j.MisRevision
    FROM ValidSearch s
    CROSS APPLY OPENJSON(s.Criteria, '$.PartOperations')
        WITH (
            ItemNumber VARCHAR(128) '$.ItemNumber',
            OperationNumber VARCHAR(10) '$.OperationNumber',
            MisNumber VARCHAR(10) '$.MisNumber',
            MisRevision VARCHAR(10) '$.MisRevision'
        ) j
);
GO