SET ANSI_NULLS ON;
GO
SET QUOTED_IDENTIFIER ON;
GO

IF COL_LENGTH(N'dbo.Chapters', N'POVSource') IS NULL
    ALTER TABLE dbo.Chapters ADD POVSource nvarchar(40) NULL;
GO

IF COL_LENGTH(N'dbo.Chapters', N'POVConfidence') IS NULL
    ALTER TABLE dbo.Chapters ADD POVConfidence decimal(5,2) NULL;
GO

IF COL_LENGTH(N'dbo.Chapters', N'POVEvidence') IS NULL
    ALTER TABLE dbo.Chapters ADD POVEvidence nvarchar(500) NULL;
GO

IF COL_LENGTH(N'dbo.Chapters', N'POVSuggestedName') IS NULL
    ALTER TABLE dbo.Chapters ADD POVSuggestedName nvarchar(200) NULL;
GO

IF COL_LENGTH(N'dbo.Scenes', N'POVSource') IS NULL
    ALTER TABLE dbo.Scenes ADD POVSource nvarchar(40) NULL;
GO

IF COL_LENGTH(N'dbo.Scenes', N'POVConfidence') IS NULL
    ALTER TABLE dbo.Scenes ADD POVConfidence decimal(5,2) NULL;
GO

IF COL_LENGTH(N'dbo.Scenes', N'POVEvidence') IS NULL
    ALTER TABLE dbo.Scenes ADD POVEvidence nvarchar(500) NULL;
GO

IF COL_LENGTH(N'dbo.Scenes', N'POVSuggestedName') IS NULL
    ALTER TABLE dbo.Scenes ADD POVSuggestedName nvarchar(200) NULL;
GO

UPDATE dbo.Chapters
SET POVSource = N'Legacy'
WHERE POVCharacterID IS NOT NULL
    AND POVSource IS NULL;
GO

UPDATE dbo.Scenes
SET POVSource = N'Legacy'
WHERE POVCharacterID IS NOT NULL
    AND POVSource IS NULL;
GO

CREATE OR ALTER PROCEDURE dbo.Chapter_ListByBook
    @BookID int
AS
BEGIN
    SET NOCOUNT ON;
    SELECT c.ChapterID, c.BookID, c.ChapterNumber, c.ChapterTitle, c.POVCharacterID,
        pov.CharacterName AS POVCharacterName, c.POVSource, c.POVConfidence, c.POVEvidence, c.POVSuggestedName,
        c.Summary, c.ChapterPurposeID, cpt.PurposeName AS ChapterPurposeName,
        c.SortOrder, c.RevisionStatusID, rs.StatusName AS RevisionStatusName,
        c.CreatedDate, c.UpdatedDate, c.IsArchived, c.IsLinkedToManuscript,
        c.ManuscriptDocumentID, c.ExternalReference, c.LinkedUtc
    FROM dbo.Chapters c
    INNER JOIN dbo.RevisionStatuses rs ON rs.RevisionStatusID = c.RevisionStatusID
    LEFT JOIN dbo.ChapterPurposeTypes cpt ON cpt.ChapterPurposeID = c.ChapterPurposeID
    LEFT JOIN dbo.Characters pov ON pov.CharacterID = c.POVCharacterID
    WHERE c.BookID = @BookID AND c.IsArchived = 0
    ORDER BY c.SortOrder, c.ChapterNumber;
END;
GO

CREATE OR ALTER PROCEDURE dbo.Chapter_Get
    @ChapterID int
AS
BEGIN
    SET NOCOUNT ON;
    SELECT c.ChapterID, c.BookID, c.ChapterNumber, c.ChapterTitle, c.POVCharacterID,
        pov.CharacterName AS POVCharacterName, c.POVSource, c.POVConfidence, c.POVEvidence, c.POVSuggestedName,
        c.Summary, c.ChapterPurposeID, cpt.PurposeName AS ChapterPurposeName,
        c.SortOrder, c.RevisionStatusID, rs.StatusName AS RevisionStatusName,
        c.CreatedDate, c.UpdatedDate, c.IsArchived, c.IsLinkedToManuscript,
        c.ManuscriptDocumentID, c.ExternalReference, c.LinkedUtc
    FROM dbo.Chapters c
    INNER JOIN dbo.RevisionStatuses rs ON rs.RevisionStatusID = c.RevisionStatusID
    LEFT JOIN dbo.ChapterPurposeTypes cpt ON cpt.ChapterPurposeID = c.ChapterPurposeID
    LEFT JOIN dbo.Characters pov ON pov.CharacterID = c.POVCharacterID
    WHERE c.ChapterID = @ChapterID AND c.IsArchived = 0;
END;
GO

CREATE OR ALTER PROCEDURE dbo.Scene_ListByChapter
    @ChapterID int
AS
BEGIN
    SET NOCOUNT ON;
    SELECT s.SceneID, s.ChapterID, s.SceneNumber, s.SceneTitle, s.Summary, s.StructuralSummary,
        s.POVCharacterID, pov.CharacterName AS POVCharacterName, s.POVSource, s.POVConfidence, s.POVEvidence, s.POVSuggestedName,
        s.PrimaryLocationID, s.FloorPlanID, s.InitialFloorPlanFloorID, s.SortOrder,
        s.TimeModeID, tm.TimeModeName, s.StartDateTime, s.EndDateTime, s.DurationAmount,
        s.DurationUnitID, du.DurationUnitName, s.RelativeTimeText, s.TimeConfidenceID,
        tc.TimeConfidenceName, s.ScenePurposeNotes, s.SceneOutcomeNotes, s.RevisionStatusID,
        rs.StatusName AS RevisionStatusName, s.CreatedDate, s.UpdatedDate, s.IsArchived,
        s.ArchivedDate, s.ArchivedReason, s.IsLinkedToManuscript, s.ManuscriptDocumentID,
        s.ExternalReference, s.LinkedUtc, s.ImportSource, s.ImportRunID,
        s.SourceStartParagraph, s.SourceEndParagraph
    FROM dbo.Scenes s
    INNER JOIN dbo.TimeModes tm ON tm.TimeModeID = s.TimeModeID
    LEFT JOIN dbo.DurationUnits du ON du.DurationUnitID = s.DurationUnitID
    INNER JOIN dbo.TimeConfidences tc ON tc.TimeConfidenceID = s.TimeConfidenceID
    INNER JOIN dbo.RevisionStatuses rs ON rs.RevisionStatusID = s.RevisionStatusID
    LEFT JOIN dbo.Characters pov ON pov.CharacterID = s.POVCharacterID
    WHERE s.ChapterID = @ChapterID AND s.IsArchived = 0
    ORDER BY s.SortOrder, s.SceneNumber, s.SceneTitle;
END;
GO

CREATE OR ALTER PROCEDURE dbo.Scene_Get
    @SceneID int
AS
BEGIN
    SET NOCOUNT ON;
    EXEC dbo.SceneMetric_EnsureDefaults @SceneID;
    SELECT s.SceneID, s.ChapterID, s.SceneNumber, s.SceneTitle, s.SceneTitleSource, s.Summary, s.StructuralSummary,
        s.POVCharacterID, pov.CharacterName AS POVCharacterName, s.POVSource, s.POVConfidence, s.POVEvidence, s.POVSuggestedName,
        s.PrimaryLocationID, s.FloorPlanID, s.InitialFloorPlanFloorID,
        location.LocationName AS PrimaryLocationName, location.LocationPath AS PrimaryLocationPath,
        s.SortOrder, s.TimeModeID, tm.TimeModeName, s.StartDateTime, s.EndDateTime, s.DurationAmount, s.DurationUnitID,
        du.DurationUnitName, s.RelativeTimeText, s.TimeConfidenceID, tc.TimeConfidenceName, s.ScenePurposeNotes,
        s.SceneOutcomeNotes, s.RevisionStatusID, rs.StatusName AS RevisionStatusName, s.CreatedDate, s.UpdatedDate, s.IsArchived,
        s.ArchivedDate, s.ArchivedReason, s.IsLinkedToManuscript, s.ManuscriptDocumentID, s.ExternalReference, s.LinkedUtc,
        s.ImportSource, s.ImportRunID, s.SourceStartParagraph, s.SourceEndParagraph
    FROM dbo.Scenes s
    INNER JOIN dbo.TimeModes tm ON tm.TimeModeID = s.TimeModeID
    INNER JOIN dbo.TimeConfidences tc ON tc.TimeConfidenceID = s.TimeConfidenceID
    INNER JOIN dbo.RevisionStatuses rs ON rs.RevisionStatusID = s.RevisionStatusID
    LEFT JOIN dbo.DurationUnits du ON du.DurationUnitID = s.DurationUnitID
    LEFT JOIN dbo.LocationPaths location ON location.LocationID = s.PrimaryLocationID
    LEFT JOIN dbo.Characters pov ON pov.CharacterID = s.POVCharacterID
    WHERE s.SceneID = @SceneID AND s.IsArchived = 0;
    SELECT ScenePurposeTypeID FROM dbo.ScenePurposes WHERE SceneID = @SceneID;
    EXEC dbo.SceneMetric_ListByScene @SceneID;
END;
GO

CREATE OR ALTER PROCEDURE dbo.Chapter_Save
    @ChapterID int = NULL,
    @BookID int,
    @ChapterNumber decimal(9,2),
    @ChapterTitle nvarchar(200),
    @Summary nvarchar(max) = NULL,
    @ChapterPurposeID int = NULL,
    @RevisionStatusID int,
    @POVCharacterID int = NULL
AS
BEGIN
    SET NOCOUNT ON;

    IF @POVCharacterID IS NOT NULL
        AND NOT EXISTS
        (
            SELECT 1
            FROM dbo.Characters ch
            INNER JOIN dbo.Books b ON b.ProjectID = ch.ProjectID
            WHERE ch.CharacterID = @POVCharacterID
                AND b.BookID = @BookID
                AND ch.IsArchived = 0
        )
        SET @POVCharacterID = NULL;

    IF @ChapterID IS NULL OR @ChapterID = 0
    BEGIN
        DECLARE @NextChapterOrder int = ISNULL((SELECT MAX(SortOrder) FROM dbo.Chapters WHERE BookID = @BookID), 0) + 10;
        INSERT dbo.Chapters (BookID, ChapterNumber, ChapterTitle, POVCharacterID, POVSource, Summary, ChapterPurposeID, SortOrder, RevisionStatusID)
        VALUES (@BookID, @ChapterNumber, @ChapterTitle, @POVCharacterID, CASE WHEN @POVCharacterID IS NULL THEN NULL ELSE N'Author' END, @Summary, @ChapterPurposeID, @NextChapterOrder, @RevisionStatusID);
        SELECT CAST(SCOPE_IDENTITY() AS int) AS ChapterID;
        RETURN;
    END;

    UPDATE dbo.Chapters
    SET ChapterNumber = @ChapterNumber,
        ChapterTitle = @ChapterTitle,
        POVCharacterID = @POVCharacterID,
        POVSource = CASE
            WHEN ISNULL(POVCharacterID, 0) <> ISNULL(@POVCharacterID, 0) THEN CASE WHEN @POVCharacterID IS NULL THEN NULL ELSE N'Author' END
            ELSE POVSource
        END,
        Summary = @Summary,
        ChapterPurposeID = @ChapterPurposeID,
        RevisionStatusID = @RevisionStatusID,
        UpdatedDate = SYSUTCDATETIME()
    WHERE ChapterID = @ChapterID;

    SELECT @ChapterID AS ChapterID;
END;
GO

CREATE OR ALTER PROCEDURE dbo.Chapter_UpdatePovCharacter
    @ChapterID int,
    @POVCharacterID int = NULL,
    @POVSource nvarchar(40) = N'Author',
    @POVConfidence decimal(5,2) = NULL,
    @POVEvidence nvarchar(500) = NULL,
    @POVSuggestedName nvarchar(200) = NULL
AS
BEGIN
    SET NOCOUNT ON;

    DECLARE @BookID int, @ProjectID int;
    SELECT @BookID = c.BookID, @ProjectID = b.ProjectID
    FROM dbo.Chapters c
    INNER JOIN dbo.Books b ON b.BookID = c.BookID
    WHERE c.ChapterID = @ChapterID;

    IF @BookID IS NULL
        THROW 51000, 'Chapter could not be found.', 1;

    IF @POVCharacterID IS NOT NULL
        AND NOT EXISTS (SELECT 1 FROM dbo.Characters WHERE CharacterID = @POVCharacterID AND ProjectID = @ProjectID AND IsArchived = 0)
        THROW 51000, 'POV character does not belong to this project.', 1;

    UPDATE dbo.Chapters
    SET POVCharacterID = @POVCharacterID,
        POVSource = CASE WHEN @POVCharacterID IS NULL AND NULLIF(@POVSuggestedName, N'') IS NULL THEN NULL ELSE @POVSource END,
        POVConfidence = @POVConfidence,
        POVEvidence = NULLIF(LTRIM(RTRIM(@POVEvidence)), N''),
        POVSuggestedName = NULLIF(LTRIM(RTRIM(@POVSuggestedName)), N''),
        UpdatedDate = SYSUTCDATETIME()
    WHERE ChapterID = @ChapterID;
END;
GO

CREATE OR ALTER PROCEDURE dbo.Scene_Save
    @SceneID int = NULL, @ChapterID int, @SceneNumber decimal(10,2), @SceneTitle nvarchar(200), @Summary nvarchar(max) = NULL,
    @TimeModeID int, @StartDateTime datetime2 = NULL, @EndDateTime datetime2 = NULL, @DurationAmount decimal(10,2) = NULL,
    @DurationUnitID int = NULL, @RelativeTimeText nvarchar(200) = NULL, @TimeConfidenceID int,
    @ScenePurposeNotes nvarchar(max) = NULL, @SceneOutcomeNotes nvarchar(max) = NULL, @RevisionStatusID int,
    @PrimaryLocationID int = NULL, @FloorPlanID int = NULL, @InitialFloorPlanFloorID int = NULL,
    @POVCharacterID int = NULL
AS
BEGIN
    SET NOCOUNT ON;

    DECLARE @ProjectID int;
    SELECT @ProjectID = b.ProjectID
    FROM dbo.Chapters c
    INNER JOIN dbo.Books b ON b.BookID = c.BookID
    WHERE c.ChapterID = @ChapterID;

    IF @POVCharacterID IS NOT NULL
        AND NOT EXISTS (SELECT 1 FROM dbo.Characters WHERE CharacterID = @POVCharacterID AND ProjectID = @ProjectID AND IsArchived = 0)
        SET @POVCharacterID = NULL;

    DECLARE @NextSortOrder int;
    DECLARE @CleanSceneTitle nvarchar(200) = ISNULL(LEFT(LTRIM(RTRIM(@SceneTitle)), 200), N'');
    IF @SceneID IS NULL OR @SceneID = 0
    BEGIN
        SELECT @NextSortOrder = ISNULL(MAX(SortOrder), 0) + 10 FROM dbo.Scenes WHERE ChapterID = @ChapterID;
        INSERT dbo.Scenes (ChapterID, SceneNumber, SceneTitle, SceneTitleSource, Summary, POVCharacterID, POVSource, SortOrder, TimeModeID, StartDateTime, EndDateTime,
            DurationAmount, DurationUnitID, RelativeTimeText, TimeConfidenceID, ScenePurposeNotes, SceneOutcomeNotes,
            RevisionStatusID, PrimaryLocationID, FloorPlanID, InitialFloorPlanFloorID)
        VALUES (@ChapterID, @SceneNumber, @CleanSceneTitle, CASE WHEN NULLIF(@CleanSceneTitle, N'') IS NULL THEN NULL ELSE N'Author' END, @Summary, @POVCharacterID, CASE WHEN @POVCharacterID IS NULL THEN NULL ELSE N'Author' END, @NextSortOrder, @TimeModeID, @StartDateTime, @EndDateTime,
            @DurationAmount, @DurationUnitID, @RelativeTimeText, @TimeConfidenceID, @ScenePurposeNotes, @SceneOutcomeNotes,
            @RevisionStatusID, @PrimaryLocationID, @FloorPlanID, @InitialFloorPlanFloorID);
        SET @SceneID = CAST(SCOPE_IDENTITY() AS int);
    END
    ELSE
    BEGIN
        UPDATE dbo.Scenes
        SET SceneNumber = @SceneNumber,
            SceneTitle = @CleanSceneTitle,
            SceneTitleSource = CASE
                WHEN ISNULL(SceneTitle, N'') <> @CleanSceneTitle THEN CASE WHEN NULLIF(@CleanSceneTitle, N'') IS NULL THEN NULL ELSE N'Author' END
                ELSE SceneTitleSource
            END,
            Summary = @Summary,
            POVCharacterID = @POVCharacterID,
            POVSource = CASE
                WHEN ISNULL(POVCharacterID, 0) <> ISNULL(@POVCharacterID, 0) THEN CASE WHEN @POVCharacterID IS NULL THEN NULL ELSE N'Author' END
                ELSE POVSource
            END,
            TimeModeID = @TimeModeID,
            StartDateTime = @StartDateTime,
            EndDateTime = @EndDateTime,
            DurationAmount = @DurationAmount,
            DurationUnitID = @DurationUnitID,
            RelativeTimeText = @RelativeTimeText,
            TimeConfidenceID = @TimeConfidenceID,
            ScenePurposeNotes = @ScenePurposeNotes,
            SceneOutcomeNotes = @SceneOutcomeNotes,
            RevisionStatusID = @RevisionStatusID,
            PrimaryLocationID = @PrimaryLocationID,
            FloorPlanID = @FloorPlanID,
            InitialFloorPlanFloorID = @InitialFloorPlanFloorID,
            UpdatedDate = SYSUTCDATETIME()
        WHERE SceneID = @SceneID;
    END
    SELECT @SceneID;
END;
GO

CREATE OR ALTER PROCEDURE dbo.Scene_UpdatePovCharacter
    @SceneID int,
    @POVCharacterID int = NULL,
    @POVSource nvarchar(40) = N'Author',
    @POVConfidence decimal(5,2) = NULL,
    @POVEvidence nvarchar(500) = NULL,
    @POVSuggestedName nvarchar(200) = NULL,
    @OverwriteAuthor bit = 0
AS
BEGIN
    SET NOCOUNT ON;

    DECLARE @ProjectID int, @ExistingSource nvarchar(40);
    SELECT @ProjectID = b.ProjectID, @ExistingSource = s.POVSource
    FROM dbo.Scenes s
    INNER JOIN dbo.Chapters c ON c.ChapterID = s.ChapterID
    INNER JOIN dbo.Books b ON b.BookID = c.BookID
    WHERE s.SceneID = @SceneID;

    IF @ProjectID IS NULL
        THROW 51000, 'Scene could not be found.', 1;

    IF @POVCharacterID IS NOT NULL
        AND NOT EXISTS (SELECT 1 FROM dbo.Characters WHERE CharacterID = @POVCharacterID AND ProjectID = @ProjectID AND IsArchived = 0)
        THROW 51000, 'POV character does not belong to this project.', 1;

    IF @ExistingSource = N'Author' AND ISNULL(@POVSource, N'') <> N'Author' AND @OverwriteAuthor = 0
        RETURN;

    UPDATE dbo.Scenes
    SET POVCharacterID = @POVCharacterID,
        POVSource = CASE WHEN @POVCharacterID IS NULL AND NULLIF(@POVSuggestedName, N'') IS NULL THEN NULL ELSE @POVSource END,
        POVConfidence = @POVConfidence,
        POVEvidence = NULLIF(LTRIM(RTRIM(@POVEvidence)), N''),
        POVSuggestedName = NULLIF(LTRIM(RTRIM(@POVSuggestedName)), N''),
        UpdatedDate = SYSUTCDATETIME()
    WHERE SceneID = @SceneID;
END;
GO

CREATE OR ALTER PROCEDURE dbo.Chapter_SetScenesPov
    @ChapterID int,
    @POVCharacterID int = NULL,
    @OverwriteAuthor bit = 0
AS
BEGIN
    SET NOCOUNT ON;

    DECLARE @ProjectID int;
    SELECT @ProjectID = b.ProjectID
    FROM dbo.Chapters c
    INNER JOIN dbo.Books b ON b.BookID = c.BookID
    WHERE c.ChapterID = @ChapterID;

    IF @ProjectID IS NULL
        THROW 51000, 'Chapter could not be found.', 1;

    IF @POVCharacterID IS NOT NULL
        AND NOT EXISTS (SELECT 1 FROM dbo.Characters WHERE CharacterID = @POVCharacterID AND ProjectID = @ProjectID AND IsArchived = 0)
        THROW 51000, 'POV character does not belong to this project.', 1;

    UPDATE dbo.Scenes
    SET POVCharacterID = @POVCharacterID,
        POVSource = CASE WHEN @POVCharacterID IS NULL THEN NULL ELSE N'Author' END,
        POVConfidence = NULL,
        POVEvidence = NULL,
        POVSuggestedName = NULL,
        UpdatedDate = SYSUTCDATETIME()
    WHERE ChapterID = @ChapterID
        AND IsArchived = 0
        AND (@OverwriteAuthor = 1 OR ISNULL(POVSource, N'') <> N'Author');

    SELECT @@ROWCOUNT AS ScenesUpdated;
END;
GO

CREATE OR ALTER PROCEDURE dbo.Character_Merge
    @SourceCharacterID int,
    @TargetCharacterID int,
    @UserID int = NULL
AS
BEGIN
    SET NOCOUNT ON;
    SET XACT_ABORT ON;

    IF @SourceCharacterID IS NULL OR @TargetCharacterID IS NULL OR @SourceCharacterID = @TargetCharacterID
        THROW 51000, 'Choose two different characters to merge.', 1;

    DECLARE @ProjectID int, @SourceName nvarchar(400), @TargetName nvarchar(400), @Now datetime2 = SYSUTCDATETIME();
    SELECT @ProjectID = ProjectID, @SourceName = CharacterName FROM dbo.Characters WHERE CharacterID = @SourceCharacterID AND IsArchived = 0;
    SELECT @TargetName = CharacterName FROM dbo.Characters WHERE CharacterID = @TargetCharacterID AND IsArchived = 0;

    IF @ProjectID IS NULL OR @TargetName IS NULL
        THROW 51000, 'Both characters must exist and be active before they can be merged.', 1;

    IF NOT EXISTS (SELECT 1 FROM dbo.Characters WHERE CharacterID = @TargetCharacterID AND ProjectID = @ProjectID)
        THROW 51000, 'Characters must belong to the same project before they can be merged.', 1;

    BEGIN TRANSACTION;

    INSERT dbo.CharacterAliases (CharacterID, Alias, SortOrder)
    SELECT @TargetCharacterID, AliasValue, ISNULL((SELECT MAX(SortOrder) FROM dbo.CharacterAliases WHERE CharacterID = @TargetCharacterID), 0) + ROW_NUMBER() OVER (ORDER BY AliasValue) * 10
    FROM
    (
        SELECT LTRIM(RTRIM(@SourceName)) AS AliasValue
        UNION
        SELECT LTRIM(RTRIM(ShortName)) FROM dbo.Characters WHERE CharacterID = @SourceCharacterID
        UNION
        SELECT LTRIM(RTRIM(Alias)) FROM dbo.CharacterAliases WHERE CharacterID = @SourceCharacterID
    ) aliases
    WHERE NULLIF(AliasValue, N'') IS NOT NULL
        AND AliasValue <> @TargetName
        AND NOT EXISTS
        (
            SELECT 1 FROM dbo.CharacterAliases existing
            WHERE existing.CharacterID = @TargetCharacterID
                AND UPPER(LTRIM(RTRIM(existing.Alias))) = UPPER(AliasValue)
        );

    UPDATE dbo.Chapters SET POVCharacterID = @TargetCharacterID, UpdatedDate = @Now WHERE POVCharacterID = @SourceCharacterID;
    UPDATE dbo.Scenes SET POVCharacterID = @TargetCharacterID, UpdatedDate = @Now WHERE POVCharacterID = @SourceCharacterID;

    DELETE sourceRows
    FROM dbo.SceneCharacters sourceRows
    WHERE sourceRows.CharacterID = @SourceCharacterID
        AND EXISTS
        (
            SELECT 1 FROM dbo.SceneCharacters targetRows
            WHERE targetRows.SceneID = sourceRows.SceneID
                AND targetRows.CharacterID = @TargetCharacterID
        );
    UPDATE dbo.SceneCharacters SET CharacterID = @TargetCharacterID, UpdatedDate = @Now WHERE CharacterID = @SourceCharacterID;

    DELETE sourceRows
    FROM dbo.SceneCharacterSuggestions sourceRows
    WHERE sourceRows.CharacterID = @SourceCharacterID
        AND EXISTS
        (
            SELECT 1 FROM dbo.SceneCharacterSuggestions targetRows
            WHERE targetRows.SceneID = sourceRows.SceneID
                AND targetRows.CharacterID = @TargetCharacterID
                AND targetRows.Status = sourceRows.Status
        );
    UPDATE dbo.SceneCharacterSuggestions SET CharacterID = @TargetCharacterID WHERE CharacterID = @SourceCharacterID;

    DELETE sourceRows
    FROM dbo.SceneFloorPlanOccupancy sourceRows
    WHERE sourceRows.CharacterID = @SourceCharacterID
        AND EXISTS
        (
            SELECT 1 FROM dbo.SceneFloorPlanOccupancy targetRows
            WHERE targetRows.SceneID = sourceRows.SceneID
                AND targetRows.CharacterID = @TargetCharacterID
        );
    UPDATE dbo.SceneFloorPlanOccupancy SET CharacterID = @TargetCharacterID, ModifiedDate = @Now WHERE CharacterID = @SourceCharacterID;

    UPDATE dbo.AssetCustodyEventCharacters SET CharacterID = @TargetCharacterID WHERE CharacterID = @SourceCharacterID;
    UPDATE dbo.CharacterAttributeEvents SET CharacterID = @TargetCharacterID, UpdatedDate = @Now WHERE CharacterID = @SourceCharacterID;
    UPDATE dbo.CharacterKnowledge SET CharacterID = @TargetCharacterID, UpdatedDate = @Now WHERE CharacterID = @SourceCharacterID;
    UPDATE dbo.CharacterImages SET CharacterID = @TargetCharacterID WHERE CharacterID = @SourceCharacterID;
    UPDATE dbo.ContinuityWarningAcknowledgements
    SET CharacterID = @TargetCharacterID
    WHERE CharacterID = @SourceCharacterID;
    UPDATE dbo.OnboardingManuscriptBuildCharacterMap SET CharacterID = @TargetCharacterID WHERE CharacterID = @SourceCharacterID;

    DECLARE relationship_cursor CURSOR LOCAL FAST_FORWARD FOR
        SELECT CharacterRelationshipID,
            CASE WHEN CharacterAID = @SourceCharacterID THEN @TargetCharacterID ELSE CharacterAID END AS NewAID,
            CASE WHEN CharacterBID = @SourceCharacterID THEN @TargetCharacterID ELSE CharacterBID END AS NewBID
        FROM dbo.CharacterRelationships
        WHERE IsArchived = 0
            AND (CharacterAID = @SourceCharacterID OR CharacterBID = @SourceCharacterID);

    DECLARE @RelationshipID int, @NewAID int, @NewBID int, @ExistingRelationshipID int;
    OPEN relationship_cursor;
    FETCH NEXT FROM relationship_cursor INTO @RelationshipID, @NewAID, @NewBID;
    WHILE @@FETCH_STATUS = 0
    BEGIN
        IF @NewAID = @NewBID
        BEGIN
            UPDATE dbo.CharacterRelationships
            SET IsArchived = 1,
                ArchivedDate = @Now,
                ArchivedReason = N'Archived during character merge to avoid a self-relationship.',
                UpdatedDate = @Now,
                ModifiedByUserID = @UserID,
                ModifiedDateUTC = @Now
            WHERE CharacterRelationshipID = @RelationshipID;
        END
        ELSE
        BEGIN
            SELECT TOP (1) @ExistingRelationshipID = CharacterRelationshipID
            FROM dbo.CharacterRelationships
            WHERE ProjectID = @ProjectID
                AND IsArchived = 0
                AND CharacterRelationshipID <> @RelationshipID
                AND ((CharacterAID = @NewAID AND CharacterBID = @NewBID) OR (CharacterAID = @NewBID AND CharacterBID = @NewAID))
            ORDER BY CharacterRelationshipID;

            IF @ExistingRelationshipID IS NOT NULL
            BEGIN
                UPDATE dbo.RelationshipEvents
                SET CharacterRelationshipID = @ExistingRelationshipID,
                    UpdatedDate = @Now,
                    ModifiedByUserID = @UserID,
                    ModifiedDateUTC = @Now
                WHERE CharacterRelationshipID = @RelationshipID;

                UPDATE dbo.CharacterRelationships
                SET IsArchived = 1,
                    ArchivedDate = @Now,
                    ArchivedReason = N'Merged into another relationship during character merge.',
                    UpdatedDate = @Now,
                    ModifiedByUserID = @UserID,
                    ModifiedDateUTC = @Now
                WHERE CharacterRelationshipID = @RelationshipID;
            END
            ELSE
            BEGIN
                UPDATE dbo.CharacterRelationships
                SET CharacterAID = @NewAID,
                    CharacterBID = @NewBID,
                    UpdatedDate = @Now,
                    ModifiedByUserID = @UserID,
                    ModifiedDateUTC = @Now
                WHERE CharacterRelationshipID = @RelationshipID;
            END
        END

        SET @ExistingRelationshipID = NULL;
        FETCH NEXT FROM relationship_cursor INTO @RelationshipID, @NewAID, @NewBID;
    END
    CLOSE relationship_cursor;
    DEALLOCATE relationship_cursor;

    UPDATE dbo.Characters
    SET IsArchived = 1,
        ArchivedDate = @Now,
        ArchivedReason = CONCAT(N'Merged into ', @TargetName, N' (CharacterID ', @TargetCharacterID, N').'),
        UpdatedDate = @Now,
        ModifiedByUserID = @UserID,
        ModifiedDateUTC = @Now
    WHERE CharacterID = @SourceCharacterID;

    COMMIT TRANSACTION;

    SELECT @TargetCharacterID AS TargetCharacterID,
        @SourceCharacterID AS SourceCharacterID,
        @SourceName AS SourceCharacterName,
        @TargetName AS TargetCharacterName;
END;
GO