//
//  <copyright file="CustomAction.cs" company="Microsoft">
//    Copyright (C) Microsoft. All rights reserved.
//  </copyright>
//

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using Microsoft.Deployment.WindowsInstaller;
using Microsoft.WindowsServerSolutions.HostedEmail;
using System.IO;
using Contoso.EmailService;

namespace ContosoCustomAction
{
    public class CustomActions
    {
        // This is copied from ContosoHostedEmail.addin
        private const string addinId = "3983E9AC-B6D1-4A2A-881C-4B1CEFCA5266";
        [CustomAction]
        public static ActionResult UninstallCheck(Session session)
        {
            session.Log("Begin UninstallCheck");
            try
            {

                if (HostedEmailIntegrationManager.EnabledAddinId.Equals(new Guid(addinId)))
                {
                    session.Log("Current hosted email addin is enabled, prevent it being uninstalled");
                    return ActionResult.Failure;
                }
            }
            catch (Exception e)
            {
                session.Log("UninstallCheck failed due to {0}", e.Message);
                return ActionResult.Failure;
            }
            return ActionResult.Success;
        }

        [CustomAction]
        public static ActionResult RemoveAutoGeneratedDataFilesAndFolders(Session session)
        {
            session.Log("Begin RemoveAutoGeneratedDataFilesAndFolders");
            try
            {
                var file = Constants.AccountDataFilePath;
                if (File.Exists(file))
                {
                    session.Log("Remove {0}", file);
                    File.Delete(file);
                }
                file = Constants.ConfigrationFilePath;
                if (File.Exists(file))
                {
                    session.Log("Remove {0}", file);
                    File.Delete(file);
                }
                file = Constants.ConfigurationSchemaPath;
                if (File.Exists(file))
                {
                    session.Log("Remove {0}", file);
                    File.Delete(file);
                }
                var folder = Constants.BaseDirectory;
                if (Directory.EnumerateDirectories(folder).Count() == 0 && Directory.EnumerateFiles(folder).Count() == 0)
                {
                    session.Log("Remove directory {0}", folder);
                    Directory.Delete(folder);
                }
            }
            catch (IOException e)
            {
                session.Log(e.Message);
            }
            catch (Exception e)
            {
                session.Log(e.Message);
                return ActionResult.Failure;
            }
            return ActionResult.Success;
        }
    }
}