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using System;
using System.Collections.Generic;
using System.IO;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using Tango.Explorer;

namespace Tango.PPC.Common.Storage
{
    /// <summary>
    /// Represents a storage provider responsible of notifying about flash drives connection/disconnection.
    /// </summary>
    public interface IStorageProvider
    {
        /// <summary>
        /// Occurs when a new storage drive has been inserted.
        /// </summary>
        event EventHandler<DriveInfo> StorageConnected;

        /// <summary>
        /// Occurs when a storage drive has been removed.
        /// </summary>
        event EventHandler<DriveInfo> StorageDisconnected;

        /// <summary>
        /// Gets a value indicating whether a storage drive is currently inserted.
        /// </summary>
        bool IsConnected { get; }

        /// <summary>
        /// Gets the inserted storage drive information.
        /// </summary>
        DriveInfo Drive { get; }

        /// <summary>
        /// Registers a method for handling a file selection.
        /// </summary>
        /// <param name="extension">The file extension.</param>
        /// <param name="handler">The handler.</param>
        void RegisterFileHandler(String extension, Action<List<ExplorerFileItem>> handler);

        /// <summary>
        /// Unregisters the file handler.
        /// </summary>
        /// <param name="handler">The handler.</param>
        void UnregisterFileHandler(Action<List<ExplorerFileItem>> handler);

        /// <summary>
        /// Submits a file selection.
        /// </summary>
        /// <param name="fileItem">The file item.</param>
        void SubmitFileSelection(List<ExplorerFileItem> fileItems);
    }
}