using DigitalData.Core.DTO;
using System.DirectoryServices;

namespace DigitalData.Core.Abstractions.Application
{
    public interface IDirectorySearchService
    {
        public string ServerName { get; }

        public string Root { get; }

        string SearchRootPath { get; }

        Dictionary<string, string> CustomSearchFilters { get; }

        /// <summary>
        /// Creates the connections to the server and returns a Boolean value that specifies
        /// whether the specified username and password are valid.
        /// </summary>
        /// <param name="userName">The username that is validated on the server. See the Remarks section
        /// for more information on the format of userName.</param>
        /// <param name="password">The password that is validated on the server.</param>
        /// <returns>True if the credentials are valid; otherwise, false.</returns>
        bool ValidateCredentials(string userName, string password);

        /// <summary>
        /// Creates the connections to the server asynchronously and returns a Boolean value that specifies
        /// whether the specified username and password are valid.
        /// </summary>
        /// <param name="userName">The username that is validated on the server. See the Remarks section
        /// for more information on the format of userName.</param>
        /// <param name="password">The password that is validated on the server.</param>
        /// <returns>True if the credentials are valid; otherwise, false.</returns>
        Task<bool> ValidateCredentialsAsync(string userName, string password);

        /// <summary>
        /// Finds all directory entries matching the specified filter.
        /// </summary>
        /// <param name="searchRoot">The search root.</param>
        /// <param name="filter">The search filter.</param>
        /// <param name="searchScope">The search scope.</param>
        /// <param name="sizeLimit">The size limit.</param>
        /// <param name="properties">The properties to load.</param>
        /// <returns>A <see cref="DataResult{T}"/> containing the results.</returns>
        DataResult<IEnumerable<ResultPropertyCollection>> FindAll(DirectoryEntry searchRoot, string filter, SearchScope searchScope = SearchScope.Subtree, int sizeLimit = 5000, params string[] properties);

        /// <summary>
        /// Finds all directory entries matching the specified filter asynchronously.
        /// </summary>
        /// <param name="searchRoot">The search root.</param>
        /// <param name="filter">The search filter.</param>
        /// <param name="searchScope">The search scope.</param>
        /// <param name="sizeLimit">The size limit.</param>
        /// <param name="properties">The properties to load.</param>
        /// <returns>A <see cref="DataResult{T}"/> containing the results.</returns>
        Task<DataResult<IEnumerable<ResultPropertyCollection>>> FindAllAsync(DirectoryEntry searchRoot, string filter, SearchScope searchScope = SearchScope.Subtree, int sizeLimit = 5000, params string[] properties);

        /// <summary>
        /// Finds all directory entries matching the specified filter, using the user cache.
        /// </summary>
        /// <param name="username">The username.</param>
        /// <param name="filter">The search filter.</param>
        /// <param name="searchScope">The search scope.</param>
        /// <param name="sizeLimit">The size limit.</param>
        /// <param name="properties">The properties to load.</param>
        /// <returns>A <see cref="DataResult{T}"/> containing the results.</returns>
        DataResult<IEnumerable<ResultPropertyCollection>> FindAllByUserCache(string username, string filter, SearchScope searchScope = SearchScope.Subtree, int sizeLimit = 5000, params string[] properties);

        /// <summary>
        /// Finds all directory entries matching the specified filter asynchronously, using the user cache.
        /// </summary>
        /// <param name="username">The username.</param>
        /// <param name="filter">The search filter.</param>
        /// <param name="searchScope">The search scope.</param>
        /// <param name="sizeLimit">The size limit.</param>
        /// <param name="properties">The properties to load.</param>
        /// <returns>A <see cref="DataResult{T}"/> containing the results.</returns>
        Task<DataResult<IEnumerable<ResultPropertyCollection>>> FindAllByUserCacheAsync(string username, string filter, SearchScope searchScope = SearchScope.Subtree, int sizeLimit = 5000, params string[] properties);

        /// <summary>
        /// Sets the search root in the cache.
        /// </summary>
        /// <param name="username">The directory entry username.</param>
        /// <param name="password">The directory entry password.</param>
        void SetSearchRootCache(string username, string password);

        /// <summary>
        /// Gets the search root from the cache.
        /// </summary>
        /// <param name="username">The directory entry username.</param>
        /// <returns>The cached <see cref="DirectoryEntry"/> if found; otherwise, null.</returns>
        DirectoryEntry? GetSearchRootCache(string username);
    }
}