using System;
using System.Data.SqlServerCe;
using System.IO;
using NUnit.Framework;
using Umbraco.Core.Persistence;
using Umbraco.Core.Persistence.SqlSyntax;

namespace Umbraco.Tests.TestHelpers
{
    /// <summary>
    /// Use this abstract class for tests that requires direct access to the PetaPoco <see cref="Database"/> object.
    /// This base test class will use the database setup with ConnectionString and ProviderName from the test implementation
    /// populated with the umbraco db schema.
    /// </summary>
    /// <remarks>Can be used to test against an Sql Ce, Sql Server and MySql database</remarks>
    [TestFixture]
    public abstract class BaseDatabaseTest
    {
        private Database _database;

        [SetUp]
        public virtual void Initialize()
        {
            string path = TestHelper.CurrentAssemblyDirectory;
            AppDomain.CurrentDomain.SetData("DataDirectory", path);

            //If the Database Provider is Sql Ce we need to ensure the database
            if (ProviderName.Contains("SqlServerCe"))
            {
                //Delete database file before continueing
                string filePath = string.Concat(path, "\\test.sdf");
                if (File.Exists(filePath))
                {
                    File.Delete(filePath);
                }

                //Create the Sql CE database
                var engine = new SqlCeEngine(ConnectionString);
                engine.CreateDatabase();
            }

            SyntaxConfig.SqlSyntaxProvider = SyntaxProvider;

            //Create the umbraco database
            _database = new Database(ConnectionString, ProviderName);
            _database.Initialize();
        }

        public abstract string ConnectionString { get; }
        public abstract string ProviderName { get; }
        public abstract ISqlSyntaxProvider SyntaxProvider { get; }

        protected Database Database
        {
            get { return _database; }
        }

        [TearDown]
        public virtual void TearDown()
        {
            AppDomain.CurrentDomain.SetData("DataDirectory", null);
        }
    }
}