using MediaBrowser.Model.Dto;
using MediaBrowser.Model.Entities;
using MediaBrowser.Model.Querying;
using ServiceStack;
using System;
using System.Collections.Generic;
using System.Linq;

namespace MediaBrowser.Api.UserLibrary
{
    public abstract class BaseItemsRequest : IHasItemFields
    {
        protected BaseItemsRequest()
        {
            EnableImages = true;
        }

        /// <summary>
        /// Skips over a given number of items within the results. Use for paging.
        /// </summary>
        /// <value>The start index.</value>
        [ApiMember(Name = "StartIndex", Description = "Optional. The record index to start at. All items with a lower index will be dropped from the results.", IsRequired = false, DataType = "int", ParameterType = "query", Verb = "GET")]
        public int? StartIndex { get; set; }

        /// <summary>
        /// The maximum number of items to return
        /// </summary>
        /// <value>The limit.</value>
        [ApiMember(Name = "Limit", Description = "Optional. The maximum number of records to return", IsRequired = false, DataType = "int", ParameterType = "query", Verb = "GET")]
        public int? Limit { get; set; }

        /// <summary>
        /// Whether or not to perform the query recursively
        /// </summary>
        /// <value><c>true</c> if recursive; otherwise, <c>false</c>.</value>
        [ApiMember(Name = "Recursive", Description = "When searching within folders, this determines whether or not the search will be recursive. true/false", IsRequired = false, DataType = "boolean", ParameterType = "query", Verb = "GET")]
        public bool Recursive { get; set; }

        /// <summary>
        /// Gets or sets the sort order.
        /// </summary>
        /// <value>The sort order.</value>
        [ApiMember(Name = "SortOrder", Description = "Sort Order - Ascending,Descending", IsRequired = false, DataType = "string", ParameterType = "query", Verb = "GET")]
        public SortOrder? SortOrder { get; set; }

        /// <summary>
        /// Specify this to localize the search to a specific item or folder. Omit to use the root.
        /// </summary>
        /// <value>The parent id.</value>
        [ApiMember(Name = "ParentId", Description = "Specify this to localize the search to a specific item or folder. Omit to use the root", IsRequired = false, DataType = "string", ParameterType = "query", Verb = "GET")]
        public string ParentId { get; set; }

        /// <summary>
        /// Fields to return within the items, in addition to basic information
        /// </summary>
        /// <value>The fields.</value>
        [ApiMember(Name = "Fields", Description = "Optional. Specify additional fields of information to return in the output. This allows multiple, comma delimeted. Options: Budget, Chapters, CriticRatingSummary, DateCreated, Genres, HomePageUrl, IndexOptions, MediaStreams, Overview, ParentId, Path, People, ProviderIds, PrimaryImageAspectRatio, Revenue, SortName, Studios, Taglines", IsRequired = false, DataType = "string", ParameterType = "query", Verb = "GET", AllowMultiple = true)]
        public string Fields { get; set; }

        /// <summary>
        /// Gets or sets the exclude item types.
        /// </summary>
        /// <value>The exclude item types.</value>
        [ApiMember(Name = "ExcludeItemTypes", Description = "Optional. If specified, results will be filtered based on item type. This allows multiple, comma delimeted.", IsRequired = false, DataType = "string", ParameterType = "query", Verb = "GET", AllowMultiple = true)]
        public string ExcludeItemTypes { get; set; }

        /// <summary>
        /// Gets or sets the include item types.
        /// </summary>
        /// <value>The include item types.</value>
        [ApiMember(Name = "IncludeItemTypes", Description = "Optional. If specified, results will be filtered based on item type. This allows multiple, comma delimeted.", IsRequired = false, DataType = "string", ParameterType = "query", Verb = "GET", AllowMultiple = true)]
        public string IncludeItemTypes { get; set; }

        /// <summary>
        /// Filters to apply to the results
        /// </summary>
        /// <value>The filters.</value>
        [ApiMember(Name = "Filters", Description = "Optional. Specify additional filters to apply. This allows multiple, comma delimeted. Options: IsFolder, IsNotFolder, IsUnplayed, IsPlayed, IsFavorite, IsResumable, Likes, Dislikes", IsRequired = false, DataType = "string", ParameterType = "query", Verb = "GET", AllowMultiple = true)]
        public string Filters { get; set; }

        /// <summary>
        /// Gets or sets the media types.
        /// </summary>
        /// <value>The media types.</value>
        [ApiMember(Name = "MediaTypes", Description = "Optional filter by MediaType. Allows multiple, comma delimited.", IsRequired = false, DataType = "string", ParameterType = "query", Verb = "GET", AllowMultiple = true)]
        public string MediaTypes { get; set; }

        /// <summary>
        /// Gets or sets the image types.
        /// </summary>
        /// <value>The image types.</value>
        [ApiMember(Name = "ImageTypes", Description = "Optional. If specified, results will be filtered based on those containing image types. This allows multiple, comma delimited.", IsRequired = false, DataType = "string", ParameterType = "query", Verb = "GET", AllowMultiple = true)]
        public string ImageTypes { get; set; }

        /// <summary>
        /// What to sort the results by
        /// </summary>
        /// <value>The sort by.</value>
        [ApiMember(Name = "SortBy", Description = "Optional. Specify one or more sort orders, comma delimeted. Options: Album, AlbumArtist, Artist, Budget, CommunityRating, CriticRating, DateCreated, DatePlayed, PlayCount, PremiereDate, ProductionYear, SortName, Random, Revenue, Runtime", IsRequired = false, DataType = "string", ParameterType = "query", Verb = "GET", AllowMultiple = true)]
        public string SortBy { get; set; }

        [ApiMember(Name = "IsPlayed", Description = "Optional filter by items that are played, or not.", IsRequired = false, DataType = "bool", ParameterType = "query", Verb = "GET")]
        public bool? IsPlayed { get; set; }

        /// <summary>
        /// Limit results to items containing specific genres
        /// </summary>
        /// <value>The genres.</value>
        [ApiMember(Name = "Genres", Description = "Optional. If specified, results will be filtered based on genre. This allows multiple, pipe delimeted.", IsRequired = false, DataType = "string", ParameterType = "query", Verb = "GET", AllowMultiple = true)]
        public string Genres { get; set; }

        [ApiMember(Name = "OfficialRatings", Description = "Optional. If specified, results will be filtered based on OfficialRating. This allows multiple, pipe delimeted.", IsRequired = false, DataType = "string", ParameterType = "query", Verb = "GET", AllowMultiple = true)]
        public string OfficialRatings { get; set; }

        [ApiMember(Name = "Tags", Description = "Optional. If specified, results will be filtered based on tag. This allows multiple, pipe delimeted.", IsRequired = false, DataType = "string", ParameterType = "query", Verb = "GET", AllowMultiple = true)]
        public string Tags { get; set; }

        /// <summary>
        /// Limit results to items containing specific years
        /// </summary>
        /// <value>The years.</value>
        [ApiMember(Name = "Years", Description = "Optional. If specified, results will be filtered based on production year. This allows multiple, comma delimeted.", IsRequired = false, DataType = "string", ParameterType = "query", Verb = "GET", AllowMultiple = true)]
        public string Years { get; set; }

        [ApiMember(Name = "EnableImages", Description = "Optional, include image information in output", IsRequired = false, DataType = "boolean", ParameterType = "query", Verb = "GET")]
        public bool EnableImages { get; set; }

        [ApiMember(Name = "ImageTypeLimit", Description = "Optional, the max number of images to return, per image type", IsRequired = false, DataType = "int", ParameterType = "query", Verb = "GET")]
        public int? ImageTypeLimit { get; set; }

        [ApiMember(Name = "EnableImageTypes", Description = "Optional. The image types to include in the output.", IsRequired = false, DataType = "string", ParameterType = "query", Verb = "GET")]
        public string EnableImageTypes { get; set; }

        public string[] GetGenres()
        {
            return (Genres ?? string.Empty).Split(new[] { '|' }, StringSplitOptions.RemoveEmptyEntries);
        }

        public string[] GetTags()
        {
            return (Tags ?? string.Empty).Split(new[] { '|' }, StringSplitOptions.RemoveEmptyEntries);
        }

        public string[] GetOfficialRatings()
        {
            return (OfficialRatings ?? string.Empty).Split(new[] { '|' }, StringSplitOptions.RemoveEmptyEntries);
        }

        public string[] GetMediaTypes()
        {
            return (MediaTypes ?? string.Empty).Split(new[] { ',' }, StringSplitOptions.RemoveEmptyEntries);
        }

        public string[] GetIncludeItemTypes()
        {
            return (IncludeItemTypes ?? string.Empty).Split(new[] { ',' }, StringSplitOptions.RemoveEmptyEntries);
        }

        public string[] GetExcludeItemTypes()
        {
            return (ExcludeItemTypes ?? string.Empty).Split(new[] { ',' }, StringSplitOptions.RemoveEmptyEntries);
        }

        public int[] GetYears()
        {
            return (Years ?? string.Empty).Split(new[] { ',' }, StringSplitOptions.RemoveEmptyEntries).Select(int.Parse).ToArray();
        }
        
        /// <summary>
        /// Gets the filters.
        /// </summary>
        /// <returns>IEnumerable{ItemFilter}.</returns>
        public IEnumerable<ItemFilter> GetFilters()
        {
            var val = Filters;

            if (string.IsNullOrEmpty(val))
            {
                return new ItemFilter[] { };
            }

            return val.Split(',').Select(v => (ItemFilter)Enum.Parse(typeof(ItemFilter), v, true));
        }

        /// <summary>
        /// Gets the image types.
        /// </summary>
        /// <returns>IEnumerable{ImageType}.</returns>
        public IEnumerable<ImageType> GetImageTypes()
        {
            var val = ImageTypes;

            if (string.IsNullOrEmpty(val))
            {
                return new ImageType[] { };
            }

            return val.Split(',').Select(v => (ImageType)Enum.Parse(typeof(ImageType), v, true));
        }

        /// <summary>
        /// Gets the order by.
        /// </summary>
        /// <returns>IEnumerable{ItemSortBy}.</returns>
        public string[] GetOrderBy()
        {
            var val = SortBy;

            if (string.IsNullOrEmpty(val))
            {
                return new string[] { };
            }

            return val.Split(',');
        }

        public DtoOptions GetDtoOptions()
        {
            var options = new DtoOptions();

            options.Fields = this.GetItemFields().ToList();
            options.EnableImages = EnableImages;

            if (ImageTypeLimit.HasValue)
            {
                options.ImageTypeLimit = ImageTypeLimit.Value;
            }

            if (string.IsNullOrWhiteSpace(EnableImageTypes))
            {
                if (options.EnableImages)
                {
                    // Get everything
                    options.ImageTypes = Enum.GetNames(typeof(ImageType))
                        .Select(i => (ImageType)Enum.Parse(typeof(ImageType), i, true))
                        .ToList();
                }
            }
            else
            {
                options.ImageTypes = (EnableImageTypes ?? string.Empty).Split(',').Where(i => !string.IsNullOrWhiteSpace(i)).Select(v => (ImageType)Enum.Parse(typeof(ImageType), v, true)).ToList();
            }

            return options;
        }
    }
}