-- Test schema for MSSQL Reader integration tests
-- This script creates a sample database for testing the MSSQL reader

USE master;
GO

-- Drop existing database if it exists
IF EXISTS (SELECT 1 FROM sys.databases WHERE name = 'RelSpecTest')
BEGIN
    ALTER DATABASE RelSpecTest SET SINGLE_USER WITH ROLLBACK IMMEDIATE;
    DROP DATABASE RelSpecTest;
END
GO

-- Create test database
CREATE DATABASE RelSpecTest;
GO

USE RelSpecTest;
GO

-- Create schemas
CREATE SCHEMA [public];
GO

CREATE SCHEMA [auth];
GO

-- Create tables in public schema
CREATE TABLE [public].[users] (
    [id] INT IDENTITY(1,1) NOT NULL,
    [email] NVARCHAR(255) NOT NULL,
    [username] NVARCHAR(100) NOT NULL,
    [created_at] DATETIME2 NOT NULL DEFAULT GETDATE(),
    [updated_at] DATETIME2 NULL,
    [is_active] BIT NOT NULL DEFAULT 1,
    PRIMARY KEY ([id]),
    UNIQUE ([email]),
    UNIQUE ([username])
);
GO

CREATE TABLE [public].[posts] (
    [id] INT IDENTITY(1,1) NOT NULL,
    [user_id] INT NOT NULL,
    [title] NVARCHAR(255) NOT NULL,
    [content] NVARCHAR(MAX) NOT NULL,
    [published_at] DATETIME2 NULL,
    [created_at] DATETIME2 NOT NULL DEFAULT GETDATE(),
    PRIMARY KEY ([id])
);
GO

CREATE TABLE [public].[comments] (
    [id] INT IDENTITY(1,1) NOT NULL,
    [post_id] INT NOT NULL,
    [user_id] INT NOT NULL,
    [content] NVARCHAR(MAX) NOT NULL,
    [created_at] DATETIME2 NOT NULL DEFAULT GETDATE(),
    PRIMARY KEY ([id])
);
GO

-- Create tables in auth schema
CREATE TABLE [auth].[roles] (
    [id] INT IDENTITY(1,1) NOT NULL,
    [name] NVARCHAR(100) NOT NULL,
    [description] NVARCHAR(MAX) NULL,
    PRIMARY KEY ([id]),
    UNIQUE ([name])
);
GO

CREATE TABLE [auth].[user_roles] (
    [id] INT IDENTITY(1,1) NOT NULL,
    [user_id] INT NOT NULL,
    [role_id] INT NOT NULL,
    PRIMARY KEY ([id]),
    UNIQUE ([user_id], [role_id])
);
GO

-- Add foreign keys
ALTER TABLE [public].[posts]
ADD CONSTRAINT [FK_posts_users]
FOREIGN KEY ([user_id])
REFERENCES [public].[users] ([id])
ON DELETE CASCADE ON UPDATE NO ACTION;
GO

ALTER TABLE [public].[comments]
ADD CONSTRAINT [FK_comments_posts]
FOREIGN KEY ([post_id])
REFERENCES [public].[posts] ([id])
ON DELETE CASCADE ON UPDATE NO ACTION;
GO

ALTER TABLE [public].[comments]
ADD CONSTRAINT [FK_comments_users]
FOREIGN KEY ([user_id])
REFERENCES [public].[users] ([id])
ON DELETE CASCADE ON UPDATE NO ACTION;
GO

ALTER TABLE [auth].[user_roles]
ADD CONSTRAINT [FK_user_roles_users]
FOREIGN KEY ([user_id])
REFERENCES [public].[users] ([id])
ON DELETE CASCADE ON UPDATE NO ACTION;
GO

ALTER TABLE [auth].[user_roles]
ADD CONSTRAINT [FK_user_roles_roles]
FOREIGN KEY ([role_id])
REFERENCES [auth].[roles] ([id])
ON DELETE CASCADE ON UPDATE NO ACTION;
GO

-- Create indexes
CREATE INDEX [IDX_users_email] ON [public].[users] ([email]);
GO

CREATE INDEX [IDX_posts_user_id] ON [public].[posts] ([user_id]);
GO

CREATE INDEX [IDX_comments_post_id] ON [public].[comments] ([post_id]);
GO

CREATE INDEX [IDX_comments_user_id] ON [public].[comments] ([user_id]);
GO

-- Add extended properties (comments)
EXEC sp_addextendedproperty
  @name = 'MS_Description',
  @value = 'User accounts table',
  @level0type = 'SCHEMA', @level0name = 'public',
  @level1type = 'TABLE', @level1name = 'users';
GO

EXEC sp_addextendedproperty
  @name = 'MS_Description',
  @value = 'User unique identifier',
  @level0type = 'SCHEMA', @level0name = 'public',
  @level1type = 'TABLE', @level1name = 'users',
  @level2type = 'COLUMN', @level2name = 'id';
GO

EXEC sp_addextendedproperty
  @name = 'MS_Description',
  @value = 'User email address',
  @level0type = 'SCHEMA', @level0name = 'public',
  @level1type = 'TABLE', @level1name = 'users',
  @level2type = 'COLUMN', @level2name = 'email';
GO

EXEC sp_addextendedproperty
  @name = 'MS_Description',
  @value = 'Blog posts table',
  @level0type = 'SCHEMA', @level0name = 'public',
  @level1type = 'TABLE', @level1name = 'posts';
GO

EXEC sp_addextendedproperty
  @name = 'MS_Description',
  @value = 'User roles mapping table',
  @level0type = 'SCHEMA', @level0name = 'auth',
  @level1type = 'TABLE', @level1name = 'user_roles';
GO

-- Add check constraint
ALTER TABLE [public].[users]
ADD CONSTRAINT [CK_users_email_format]
CHECK (LEN(email) > 0 AND email LIKE '%@%.%');
GO

-- Verify schema was created
SELECT
    SCHEMA_NAME(s.schema_id) as [Schema],
    t.name as [Table],
    COUNT(c.column_id) as [ColumnCount]
FROM sys.tables t
INNER JOIN sys.schemas s ON t.schema_id = s.schema_id
LEFT JOIN sys.columns c ON t.object_id = c.object_id
WHERE SCHEMA_NAME(s.schema_id) IN ('public', 'auth')
GROUP BY SCHEMA_NAME(s.schema_id), t.name
ORDER BY [Schema], [Table];
GO