SET ANSI_NULLS ON;
GO
SET QUOTED_IDENTIFIER ON;
GO

CREATE OR ALTER PROCEDURE dbo.WordCompanion_Scene_Resolve
    @BookID int,
    @UserID int,
    @ChapterTitle nvarchar(200),
    @SceneTitle nvarchar(200)
AS
BEGIN
    SET NOCOUNT ON;

    DECLARE @ChapterTitleSearched nvarchar(200) =
        LTRIM(RTRIM(REPLACE(REPLACE(REPLACE(REPLACE(COALESCE(@ChapterTitle, N''), NCHAR(160), N' '), CHAR(9), N' '), CHAR(13), N' '), CHAR(10), N' ')));
    DECLARE @SceneTitleSearched nvarchar(200) =
        LTRIM(RTRIM(REPLACE(REPLACE(REPLACE(REPLACE(COALESCE(@SceneTitle, N''), NCHAR(160), N' '), CHAR(9), N' '), CHAR(13), N' '), CHAR(10), N' ')));

    IF NOT EXISTS
    (
        SELECT 1
        FROM dbo.Books b
        INNER JOIN dbo.Projects p ON p.ProjectID = b.ProjectID
        INNER JOIN dbo.ProjectUserAccess pua ON pua.ProjectID = p.ProjectID
        WHERE b.BookID = @BookID
            AND b.IsArchived = 0
            AND p.IsArchived = 0
            AND pua.UserID = @UserID
            AND pua.IsActive = 1
    )
    BEGIN
        SELECT CAST(0 AS bit) AS Matched,
            CAST(0 AS bit) AS ChapterMatched,
            CAST(NULL AS int) AS ChapterId,
            CAST(NULL AS int) AS SceneId,
            CAST(NULL AS nvarchar(50)) AS MatchType,
            @BookID AS BookId,
            @ChapterTitleSearched AS ChapterTitleSearched,
            @SceneTitleSearched AS SceneTitleSearched,
            CAST(0 AS int) AS AvailableChapterCount,
            CAST(0 AS int) AS AvailableSceneCount,
            CAST(0 AS bit) AS BookAccessible;
        RETURN;
    END;

    DECLARE @AvailableChapterCount int;
    DECLARE @AvailableSceneCount int;

    SELECT @AvailableChapterCount = COUNT(*)
    FROM dbo.Chapters c
    WHERE c.BookID = @BookID
        AND c.IsArchived = 0;

    SELECT @AvailableSceneCount = COUNT(*)
    FROM dbo.Chapters c
    INNER JOIN dbo.Scenes s ON s.ChapterID = c.ChapterID
    WHERE c.BookID = @BookID
        AND c.IsArchived = 0
        AND s.IsArchived = 0;

    DECLARE @ChapterID int;
    DECLARE @SceneID int;

    SELECT TOP (1) @ChapterID = c.ChapterID
    FROM dbo.Chapters c
    CROSS APPLY
    (
        SELECT LTRIM(RTRIM(REPLACE(REPLACE(REPLACE(REPLACE(c.ChapterTitle, NCHAR(160), N' '), CHAR(9), N' '), CHAR(13), N' '), CHAR(10), N' '))) AS NormalizedChapterTitle
    ) chapterMatch
    WHERE c.BookID = @BookID
        AND c.IsArchived = 0
        AND chapterMatch.NormalizedChapterTitle COLLATE SQL_Latin1_General_CP1_CI_AS = @ChapterTitleSearched COLLATE SQL_Latin1_General_CP1_CI_AS
    ORDER BY c.SortOrder, c.ChapterID;

    IF @ChapterID IS NOT NULL
    BEGIN
        SELECT TOP (1) @SceneID = s.SceneID
        FROM dbo.Scenes s
        CROSS APPLY
        (
            SELECT LTRIM(RTRIM(REPLACE(REPLACE(REPLACE(REPLACE(s.SceneTitle, NCHAR(160), N' '), CHAR(9), N' '), CHAR(13), N' '), CHAR(10), N' '))) AS NormalizedSceneTitle
        ) sceneMatch
        WHERE s.ChapterID = @ChapterID
            AND s.IsArchived = 0
            AND sceneMatch.NormalizedSceneTitle COLLATE SQL_Latin1_General_CP1_CI_AS = @SceneTitleSearched COLLATE SQL_Latin1_General_CP1_CI_AS
        ORDER BY s.SortOrder, s.SceneID;
    END;

    SELECT CAST(CASE WHEN @SceneID IS NULL THEN 0 ELSE 1 END AS bit) AS Matched,
        CAST(CASE WHEN @ChapterID IS NULL THEN 0 ELSE 1 END AS bit) AS ChapterMatched,
        @ChapterID AS ChapterId,
        @SceneID AS SceneId,
        CASE WHEN @SceneID IS NULL THEN CAST(NULL AS nvarchar(50)) ELSE N'ExactTitle' END AS MatchType,
        @BookID AS BookId,
        @ChapterTitleSearched AS ChapterTitleSearched,
        @SceneTitleSearched AS SceneTitleSearched,
        @AvailableChapterCount AS AvailableChapterCount,
        @AvailableSceneCount AS AvailableSceneCount,
        CAST(1 AS bit) AS BookAccessible;
END;
GO
