using System.Collections.Generic;
using System.Threading;
using System.Threading.Tasks;
using xModels.Dtos;
using xStringService.Models.Dtos;

namespace xStringService.Interfaces
{
    public interface IXResourceProvider
    {
        /// <summary>
        /// Retrieve a List of Exists Languages ...
        /// </summary>
        /// <param name="cancellationToken"></param>
        /// <returns></returns>
        Task<IEnumerable<string>> GetLanguages(
            CancellationToken cancellationToken = default
        );

        /// <summary>
        /// Retrieve all Exists Items ...
        /// </summary>
        /// <param name="cancellationToken"></param>
        /// <returns></returns>
        Task<IEnumerable<XStringDto>> GetResourceLocales(
            CancellationToken cancellationToken = default
        );

        /// <summary>
        /// Extract Translation of in Specified Language ...
        /// </summary>
        /// <param name="language">Specified Language ...</param>
        /// <param name="cancellationToken"></param>
        /// <returns></returns>
        Task<string> GetResourceTranslation(
            string language,
            CancellationToken cancellationToken = default
        );

        /// <summary>
        /// Check Has Specified Translation or not ...
        /// </summary>
        /// <param name="language">Specified Language ...</param>
        /// <param name="cancellationToken"></param>
        /// <returns></returns>
        Task<bool> HasLocale(
            string language,
            CancellationToken cancellationToken = default
        );

        /// <summary>
        /// Retrieve as Locale Model ...
        /// </summary>
        /// <param name="language">Specified Language ...</param>
        /// <param name="cancellationToken"></param>
        /// <returns></returns>
        Task<XLocaleResourceDto> GetLocale(
            string language,
            CancellationToken cancellationToken = default
        );

        /// <summary>
        /// Retrieve all Exists Locale Models ...
        /// </summary>
        /// <param name="cancellationToken"></param>
        /// <returns></returns>
        Task<IEnumerable<XLocaleResourceDto>> GetLocales(
            CancellationToken cancellationToken = default
        );

        /// <summary>
        /// Retrieve as XResourceDto ...
        /// </summary>
        /// <param name="cancellationToken"></param>
        /// <returns></returns>
        Task<XResourceDto> GetResource(
            CancellationToken cancellationToken = default
        );

        /// <summary>
        /// Add or Update a Resource Model ...
        /// </summary>
        /// <param name="resource">a XResourceDto Model ...</param>
        /// <param name="connectionId"></param>
        /// <param name="cancellationToken"></param>
        /// <returns></returns>
        Task<XResourceDto> AddOrUpdateResource(
            XResourceDto resource,
            string connectionId = null,
            CancellationToken cancellationToken = default
        );

        /// <summary>
        /// Add Or Update Locale ...
        /// </summary>
        /// <param name="locale"></param>
        /// <param name="connectionId"></param>
        /// <param name="cancellationToken"></param>
        /// <returns></returns>
        Task<XResourceDto> AddOrUpdateLocale(
            XLocaleResourceDto locale,
            string connectionId = null,
            CancellationToken cancellationToken = default
        );

        /// <summary>
        /// Remove Locale ...
        /// </summary>
        /// <param name="locale"></param>
        /// <param name="connectionId"></param>
        /// <param name="cancellationToken"></param>
        /// <returns></returns>
        Task<XResourceDto> RemoveLocale(
            XLocaleResourceDto locale,
            string connectionId = null,
            CancellationToken cancellationToken = default
        );

        /// <summary>
        /// Remove Specified Resource Model ...
        /// </summary>
        /// <param name="resource">a XResourceDto Model ...</param>
        /// <param name="connectionId"></param>
        /// <param name="cancellationToken"></param>
        /// <returns></returns>
        Task RemoveResource(
            XResourceDto resource,
            string connectionId = null,
            CancellationToken cancellationToken = default
        );
    }
}