SET NOCOUNT ON;
SET XACT_ABORT ON;

BEGIN TRANSACTION;

    -- 删除废弃的 b_contact_type 表
    IF OBJECT_ID(N'dbo.b_contact_type', N'U') IS NOT NULL
        DROP TABLE dbo.b_contact_type;

    -- b_contact
    DECLARE @ContactObjectId int = OBJECT_ID(N'dbo.b_contact', N'U');
    DECLARE @RebuildContact bit = 0;

    IF @ContactObjectId IS NULL
        SET @RebuildContact = 1;
    ELSE IF EXISTS (
        SELECT 1 FROM sys.columns
        WHERE object_id = @ContactObjectId
          AND name = N'b_id'
          AND system_type_id = 167  -- varchar → old structure
    )
        SET @RebuildContact = 1;

    IF @RebuildContact = 1
    BEGIN
        -- 先删依赖视图
        IF OBJECT_ID(N'dbo.v_b_contact', N'V') IS NOT NULL
            DROP VIEW dbo.v_b_contact;

        IF @ContactObjectId IS NOT NULL
            DROP TABLE dbo.b_contact;

        CREATE TABLE dbo.b_contact (
            b_id bigint NOT NULL,
            b_name_ch nvarchar(50) NULL,
            b_name_en nvarchar(50) NULL,
            b_sex nvarchar(50) NULL,
            b_phone nvarchar(50) NULL,
            b_mobilephone nvarchar(50) NULL,
            b_fax nvarchar(50) NULL,
            b_email nvarchar(50) NULL,
            b_cate_id bigint NULL,
            b_duty nvarchar(50) NULL,
            b_homephone nvarchar(50) NULL,
            b_homeaddr nvarchar(255) NULL,
            b_bz nvarchar(max) NULL,
            b_departmentname nvarchar(50) NULL,
            b_picture varbinary(max) NULL,
            b_customer_id bigint NULL,
            b_owner_id bigint NULL,
            b_isdefault int NULL,
            b_showcolor int NULL,
            b_birthday datetime NULL,
            b_type1_id bigint NULL,
            b_taste nvarchar(50) NULL,
            b_habit nvarchar(50) NULL,
            b_homesituation nvarchar(50) NULL,
            b_htbegindate datetime NULL,
            b_htenddate datetime NULL,
            b_state nvarchar(50) NULL,
            b_xh int NOT NULL CONSTRAINT DF_b_contact_xh DEFAULT (0),
            b_canuse int NOT NULL CONSTRAINT DF_b_contact_canuse DEFAULT (1),
            b_inputuser_id bigint NULL,
            b_inputdatetime datetime NULL,
            b_updateuser_id bigint NULL,
            b_updatedatetime datetime NULL,
            CONSTRAINT PK_b_contact PRIMARY KEY (b_id)
        );

        CREATE INDEX IX_b_contact_customer
            ON dbo.b_contact (b_customer_id, b_id);
        CREATE INDEX IX_b_contact_owner
            ON dbo.b_contact (b_owner_id, b_id);
        CREATE INDEX IX_b_contact_cate
            ON dbo.b_contact (b_cate_id, b_id);
    END

    -- v_b_contact 视图
    IF OBJECT_ID(N'dbo.v_b_contact', N'V') IS NOT NULL
        DROP VIEW dbo.v_b_contact;
    EXEC sp_executesql N'
    CREATE VIEW dbo.v_b_contact AS
    SELECT
        b_contact.b_id,
        b_contact.b_name_ch,
        b_contact.b_name_en,
        b_contact.b_sex,
        b_contact.b_phone,
        b_contact.b_mobilephone,
        b_contact.b_fax,
        b_contact.b_email,
        b_contact.b_cate_id,
        b_contact.b_duty,
        b_contact.b_homephone,
        b_contact.b_homeaddr,
        b_contact.b_bz,
        b_contact.b_departmentname,
        b_contact.b_picture,
        b_contact.b_customer_id,
        b_contact.b_owner_id,
        b_contact.b_isdefault,
        b_contact.b_showcolor,
        b_contact.b_birthday,
        b_contact.b_type1_id,
        b_contact.b_taste,
        b_contact.b_habit,
        b_contact.b_homesituation,
        b_contact.b_htbegindate,
        b_contact.b_htenddate,
        b_contact.b_state,
        b_contact.b_xh,
        b_contact.b_canuse,
        b_contact.b_inputuser_id,
        b_contact.b_inputdatetime,
        b_contact.b_updateuser_id,
        b_contact.b_updatedatetime,
        ISNULL(b_user.b_name, b_user.b_account) AS v_ownername,
        b_user.b_department AS v_ownerdepartment,
        b_othercompany.b_name AS v_customer_name
    FROM dbo.b_contact
    LEFT JOIN dbo.b_user ON b_user.b_id = b_contact.b_owner_id
    LEFT JOIN dbo.b_othercompany ON b_othercompany.b_id = b_contact.b_customer_id;
    ';

COMMIT TRANSACTION;