using System;
using System.Collections.Generic;
using System.Diagnostics;
using System.Diagnostics.CodeAnalysis;
using System.Globalization;
using System.Linq;
using Octokit.Internal;

namespace Octokit
{
    /// <summary>
    /// Searching Repositories
    /// http://developer.github.com/v3/search/#search-repositories
    /// </summary>
    [DebuggerDisplay("{DebuggerDisplay,nq}")]
    public class SearchRepositoriesRequest : BaseSearchRequest
    {
        /// <summary>
        /// Initializes a new instance of the <see cref="SearchRepositoriesRequest"/> class.
        /// </summary>
        public SearchRepositoriesRequest()
        {
            Order = SortDirection.Descending;
        }
        /// <summary>
        /// Initializes a new instance of the <see cref="SearchRepositoriesRequest"/> class.
        /// </summary>
        /// <param name="term">The search term.</param>
        public SearchRepositoriesRequest(string term)
            : base(term)
        {
            Order = SortDirection.Descending;
        }

        /// <summary>
        /// For https://help.github.com/articles/searching-repositories#sorting
        /// Optional Sort field. One of stars, forks, or updated. If not provided, results are sorted by best match.
        /// </summary>
        public RepoSearchSort? SortField { get; set; }

        public override string Sort
        {
            get { return SortField.ToParameter(); }
        }

        private IEnumerable<InQualifier> _inQualifier;

        /// <summary>
        /// The in qualifier limits what fields are searched. With this qualifier you can restrict the search to just the repository name, description, README, or any combination of these. 
        /// Without the qualifier, only the name and description are searched.
        /// https://help.github.com/articles/searching-repositories#search-in
        /// </summary>
        public IEnumerable<InQualifier> In
        {
            get
            {
                return _inQualifier;
            }
            set
            {
                if (value != null && value.Any())
                    _inQualifier = value.Distinct().ToList();
            }
        }

        /// <summary>
        /// Filters repositories based on the number of forks, and/or whether forked repositories should be included in the results at all.
        /// https://help.github.com/articles/searching-repositories#forks
        /// </summary>
        public Range Forks { get; set; }

        /// <summary>
        /// Filters repositories based whether forked repositories should be included in the results at all.
        /// Defaults to ExcludeForks
        /// https://help.github.com/articles/searching-repositories#forks
        /// </summary>
        public ForkQualifier? Fork { get; set; }

        /// <summary>
        /// The size qualifier finds repository's that match a certain size (in kilobytes).
        /// https://help.github.com/articles/searching-repositories#size
        /// </summary>
        public Range Size { get; set; }

        /// <summary>
        /// Searches repositories based on the language they’re written in.
        /// https://help.github.com/articles/searching-repositories#languages
        /// </summary>
        public Language? Language { get; set; }

        /// <summary>
        /// Searches repositories based on the number of stars.
        /// https://help.github.com/articles/searching-repositories#stars
        /// </summary>
        public Range Stars { get; set; }

        /// <summary>
        /// Limits searches to a specific user or repository.
        /// https://help.github.com/articles/searching-repositories#users-organizations-and-repositories
        /// </summary>
        public string User { get; set; }

        /// <summary>
        /// Filters repositories based on times of creation.
        /// https://help.github.com/articles/searching-repositories#created-and-last-updated
        /// </summary>
        public DateRange Created { get; set; }

        /// <summary>
        /// Filters repositories based on when they were last updated.
        /// https://help.github.com/articles/searching-repositories#created-and-last-updated
        /// </summary>
        public DateRange Updated { get; set; }

        /// <summary>
        /// Filters repositories based on license
        /// https://help.github.com/articles/searching-repositories#search-by-license
        /// </summary>
        public RepoSearchLicense? License { get; set; }

        /// <summary>
        /// Filters whether archived repositories should be included (true) or not (false).
        /// </summary>
        public bool? Archived { get; set; }

        /// <summary>
        /// Filters on whether repositories are tagged with the given topic.
        /// </summary>
        public string Topic { get; set; }

        /// <summary>
        /// Filters on the number of topics that a repository is associated with.
        /// </summary>
        public Range Topics { get; set; }

        public override IReadOnlyList<string> MergedQualifiers()
        {
            var parameters = new List<string>();

            if (In != null)
            {
                parameters.Add(string.Format(CultureInfo.InvariantCulture, "in:{0}", string.Join(",", In)));
            }

            if (Size != null)
            {
                parameters.Add(string.Format(CultureInfo.InvariantCulture, "size:{0}", Size));
            }

            if (Forks != null)
            {
                parameters.Add(string.Format(CultureInfo.InvariantCulture, "forks:{0}", Forks));
            }

            if (Fork != null)
            {
                parameters.Add(string.Format(CultureInfo.InvariantCulture, "fork:{0}", Fork.ToParameter()));
            }

            if (Stars != null)
            {
                parameters.Add(string.Format(CultureInfo.InvariantCulture, "stars:{0}", Stars));
            }

            if (Language != null)
            {
                parameters.Add(string.Format(CultureInfo.InvariantCulture, "language:\"{0}\"", Language.ToParameter()));
            }

            if (User.IsNotBlank())
            {
                parameters.Add(string.Format(CultureInfo.InvariantCulture, "user:{0}", User));
            }

            if (Created != null)
            {
                parameters.Add(string.Format(CultureInfo.InvariantCulture, "created:{0}", Created));
            }

            if (Updated != null)
            {
                parameters.Add(string.Format(CultureInfo.InvariantCulture, "pushed:{0}", Updated));
            }

            if (Archived != null)
            {
                parameters.Add(string.Format(CultureInfo.InvariantCulture, "archived:{0}", Archived.ToString().ToLower()));
            }

            if (Topic != null)
            {
                parameters.Add(string.Format(CultureInfo.InvariantCulture, "topic:{0}", Topic.ToLower()));
            }

            if (Topics != null)
            {
                parameters.Add(string.Format(CultureInfo.InvariantCulture, "topics:{0}", Topics.ToString().ToLower()));
            }
            if (License != null)
            {
                parameters.Add(string.Format(CultureInfo.InvariantCulture, "license:{0}", License.ToParameter()));
            }

            return parameters;
        }

        internal string DebuggerDisplay
        {
            get
            {
                return string.Format(CultureInfo.InvariantCulture, "Term: {0} Sort: {1}", Term, Sort);
            }
        }
    }

    /// <summary>
    /// https://help.github.com/articles/searching-repositories#search-in
    /// The in qualifier limits what fields are searched. With this qualifier you can restrict the search to just the 
    /// repository name, description, README, or any combination of these.
    /// </summary>
    public enum InQualifier
    {
        [Parameter(Value = "name")]
        Name,

        [Parameter(Value = "description")]
        Description,

        [Parameter(Value = "readme")]
        Readme
    }

    /// <summary>
    /// Helper class in generating the range values for a qualifier e.g. In or Size qualifiers
    /// </summary>
    [DebuggerDisplay("{DebuggerDisplay,nq}")]
    public class Range
    {
        private readonly string query = string.Empty;

        /// <summary>
        /// Matches repositories that are <param name="size">size</param> MB exactly
        /// </summary>
        [SuppressMessage("Microsoft.Globalization", "CA1305:SpecifyIFormatProvider", MessageId = "System.Int32.ToString")]
        public Range(int size)
        {
            query = size.ToString(CultureInfo.InvariantCulture);
        }

        /// <summary>
        /// Matches repositories that are between <param name="minSize"/> and <param name="maxSize"/> KB
        /// </summary>
        public Range(int minSize, int maxSize)
        {
            query = string.Format(CultureInfo.InvariantCulture, "{0}..{1}", minSize, maxSize);
        }

        /// <summary>
        /// Matches repositories with regards to the size <param name="size"/> 
        /// We will use the <param name="op"/> to see what operator will be applied to the size qualifier
        /// </summary>
        public Range(int size, SearchQualifierOperator op)
        {
            switch (op)
            {
                case SearchQualifierOperator.GreaterThan:
                    query = string.Format(CultureInfo.InvariantCulture, ">{0}", size);
                    break;
                case SearchQualifierOperator.LessThan:
                    query = string.Format(CultureInfo.InvariantCulture, "<{0}", size);
                    break;
                case SearchQualifierOperator.LessThanOrEqualTo:
                    query = string.Format(CultureInfo.InvariantCulture, "<={0}", size);
                    break;
                case SearchQualifierOperator.GreaterThanOrEqualTo:
                    query = string.Format(CultureInfo.InvariantCulture, ">={0}", size);
                    break;
            }
        }

        internal string DebuggerDisplay
        {
            get { return string.Format(CultureInfo.InvariantCulture, "Query: {0}", query); }
        }

        /// <summary>
        /// Helper class that build a <see cref="Range"/> with a LessThan comparator used for filtering results
        /// </summary>
        public static Range LessThan(int size)
        {
            return new Range(size, SearchQualifierOperator.LessThan);
        }

        /// <summary>
        /// Helper class that build a <see cref="Range"/> with a LessThanOrEqual comparator used for filtering results
        /// </summary>
        public static Range LessThanOrEquals(int size)
        {
            return new Range(size, SearchQualifierOperator.LessThanOrEqualTo);
        }

        /// <summary>
        /// Helper class that build a <see cref="Range"/> with a GreaterThan comparator used for filtering results
        /// </summary>
        public static Range GreaterThan(int size)
        {
            return new Range(size, SearchQualifierOperator.GreaterThan);
        }

        /// <summary>
        /// Helper class that build a <see cref="Range"/> with a GreaterThanOrEqualTo comparator used for filtering results
        /// </summary>
        public static Range GreaterThanOrEquals(int size)
        {
            return new Range(size, SearchQualifierOperator.GreaterThanOrEqualTo);
        }

        public override string ToString()
        {
            return query;
        }
    }

    /// <summary>
    /// helper class in generating the date range values for the date qualifier e.g.
    /// https://help.github.com/articles/searching-repositories#created-and-last-updated
    /// </summary>
    [DebuggerDisplay("{DebuggerDisplay,nq}")]
    public class DateRange
    {
        public const string DateTimePattern = "yyyy-MM-dd'T'HH:mm:sszzz";
        public const string DatePattern = "yyyy-MM-dd";

        private readonly string query = string.Empty;

        /// <summary>
        /// Matches repositories with regards to the <param name="date"/>.
        /// We will use the <param name="op"/> to see what operator will be applied to the date qualifier
        /// </summary>
        [Obsolete("This ctor does not support the time component or timezone and will be removed in a future release. Please use the DateTimeOffset overload instead")]
        public DateRange(DateTime date, SearchQualifierOperator op)
        {
            switch (op)
            {
                case SearchQualifierOperator.GreaterThan:
                    query = date.ToString($">{DatePattern}", CultureInfo.InvariantCulture);
                    break;
                case SearchQualifierOperator.LessThan:
                    query = date.ToString($"<{DatePattern}", CultureInfo.InvariantCulture);
                    break;
                case SearchQualifierOperator.LessThanOrEqualTo:
                    query = date.ToString($"<={DatePattern}", CultureInfo.InvariantCulture);
                    break;
                case SearchQualifierOperator.GreaterThanOrEqualTo:
                    query = date.ToString($">={DatePattern}", CultureInfo.InvariantCulture);
                    break;
            }
        }

        /// <summary>
        /// Matches repositories with regards to both the <param name="from"/> and <param name="to"/> dates.
        /// </summary>
        [Obsolete("This ctor does not support the time component or timezone and will be removed in a future release. Please use the DateTimeOffset overload instead")]
        public DateRange(DateTime from, DateTime to)
        {
            query = $"{from.ToString(DatePattern, CultureInfo.InvariantCulture)}..{to.ToString(DatePattern, CultureInfo.InvariantCulture)}";
        }

        /// <summary>
        /// Matches repositories with regards to both the <param name="from"/> and <param name="to"/> date and time values.
        /// </summary>
        public DateRange(DateTimeOffset from, DateTimeOffset to)
        {
            query = EncodeOffset($"{from.ToString(DateTimePattern, CultureInfo.InvariantCulture)}..{to.ToString(DateTimePattern, CultureInfo.InvariantCulture)}");
        }

        /// <summary>
        /// Matches repositories with regards to the <param name="dateTime"/>.
        /// We will use the <param name="op"/> to see what operator will be applied to the date qualifier
        /// </summary>
        public DateRange(DateTimeOffset dateTime, SearchQualifierOperator op)
        {
            switch (op)
            {
                case SearchQualifierOperator.GreaterThan:
                    query = EncodeOffset(dateTime.ToString($">{DateTimePattern}", CultureInfo.InvariantCulture));
                    break;
                case SearchQualifierOperator.LessThan:
                    query = EncodeOffset(dateTime.ToString($"<{DateTimePattern}", CultureInfo.InvariantCulture));
                    break;
                case SearchQualifierOperator.LessThanOrEqualTo:
                    query = EncodeOffset(dateTime.ToString($"<={DateTimePattern}", CultureInfo.InvariantCulture));
                    break;
                case SearchQualifierOperator.GreaterThanOrEqualTo:
                    query = EncodeOffset(dateTime.ToString($">={DateTimePattern}", CultureInfo.InvariantCulture));
                    break;
            }
        }

        private string EncodeOffset(string dateTimeOffset)
        {
            return dateTimeOffset.Replace("+", "%2B");
        }

        internal string DebuggerDisplay
        {
            get { return string.Format(CultureInfo.InvariantCulture, "Query: {0}", query); }
        }

        /// <summary>
        /// helper method to create a LessThan Date Comparison
        /// e.g. &lt; 2011
        /// </summary>
        /// <param name="date">date to be used for comparison (times are ignored)</param>
        /// <returns><see cref="DateRange"/></returns>
        [Obsolete("This method does not support the time component or timezone and will be removed in a future release. Please use the DateTimeOffset overload instead")]
        public static DateRange LessThan(DateTime date)
        {
            return new DateRange(date, SearchQualifierOperator.LessThan);
        }

        /// <summary>
        /// helper method to create a LessThanOrEqualTo Date Comparison
        /// e.g. &lt;= 2011
        /// </summary>
        /// <param name="date">date to be used for comparison (times are ignored)</param>
        /// <returns><see cref="DateRange"/></returns>
        [Obsolete("This method does not support the time component or timezone and will be removed in a future release. Please use the DateTimeOffset overload instead")]
        public static DateRange LessThanOrEquals(DateTime date)
        {
            return new DateRange(date, SearchQualifierOperator.LessThanOrEqualTo);
        }

        /// <summary>
        /// helper method to create a GreaterThan Date Comparison
        /// e.g. > 2011
        /// </summary>
        /// <param name="date">date to be used for comparison (times are ignored)</param>
        /// <returns><see cref="DateRange"/></returns>
        [Obsolete("This method does not support the time component or timezone and will be removed in a future release. Please use the DateTimeOffset overload instead")]
        public static DateRange GreaterThan(DateTime date)
        {
            return new DateRange(date, SearchQualifierOperator.GreaterThan);
        }

        /// <summary>
        /// helper method to create a GreaterThanOrEqualTo Date Comparison
        /// e.g. >= 2011
        /// </summary>
        /// <param name="date">date to be used for comparison (times are ignored)</param>
        /// <returns><see cref="DateRange"/></returns>
        [Obsolete("This method does not support the time component or timezone and will be removed in a future release. Please use the DateTimeOffset overload instead")]
        public static DateRange GreaterThanOrEquals(DateTime date)
        {
            return new DateRange(date, SearchQualifierOperator.GreaterThanOrEqualTo);
        }

        /// <summary>
        /// helper method to create a bounded Date Comparison
        /// e.g. 2015-08-01..2015-10-31
        /// </summary>
        /// <param name="from">earlier date of the two</param>
        /// <param name="to">latter date of the two</param>
        /// <returns><see cref="DateRange"/></returns>
        [Obsolete("This method does not support the time component or timezone and will be removed in a future release. Please use the DateTimeOffset overload instead")]
        public static DateRange Between(DateTime from, DateTime to)
        {
            return new DateRange(from, to);
        }

        /// <summary>
        /// helper method to create a LessThan DateTime Comparison
        /// e.g. &lt; 2011
        /// </summary>
        /// <param name="dateTime">datetime to be used for comparison (times are ignored)</param>
        /// <returns><see cref="DateRange"/></returns>
        public static DateRange LessThan(DateTimeOffset dateTime)
        {
            return new DateRange(dateTime, SearchQualifierOperator.LessThan);
        }

        /// <summary>
        /// helper method to create a LessThanOrEqualTo DateTime Comparison
        /// e.g. &lt;= 2011
        /// </summary>
        /// <param name="dateTime">datetime to be used for comparison (times are ignored)</param>
        /// <returns><see cref="DateRange"/></returns>
        public static DateRange LessThanOrEquals(DateTimeOffset dateTime)
        {
            return new DateRange(dateTime, SearchQualifierOperator.LessThanOrEqualTo);
        }

        /// <summary>
        /// helper method to create a GreaterThan DateTime Comparison
        /// e.g. > 2011
        /// </summary>
        /// <param name="dateTime">datetime to be used for comparison (times are ignored)</param>
        /// <returns><see cref="DateRange"/></returns>
        public static DateRange GreaterThan(DateTimeOffset dateTime)
        {
            return new DateRange(dateTime, SearchQualifierOperator.GreaterThan);
        }

        /// <summary>
        /// helper method to create a GreaterThanOrEqualTo DateTime Comparison
        /// e.g. >= 2011
        /// </summary>
        /// <param name="dateTime">datetime to be used for comparison (times are ignored)</param>
        /// <returns><see cref="DateRange"/></returns>
        public static DateRange GreaterThanOrEquals(DateTimeOffset dateTime)
        {
            return new DateRange(dateTime, SearchQualifierOperator.GreaterThanOrEqualTo);
        }

        /// <summary>
        /// helper method to create a bounded DateTime Comparison
        /// e.g. 2015-08-01..2015-10-31
        /// </summary>
        /// <param name="from">earlier datetime of the two</param>
        /// <param name="to">latter datetime of the two</param>
        /// <returns><see cref="DateRange"/></returns>
        public static DateRange Between(DateTimeOffset from, DateTimeOffset to)
        {
            return new DateRange(from, to);
        }

        public override string ToString()
        {
            return query;
        }
    }

    /// <summary>
    /// Languages that can be searched on in GitHub
    /// https://help.github.com/articles/searching-repositories#languages
    /// </summary>
    public enum Language
    {
#pragma warning disable 1591
        [SuppressMessage("Microsoft.Naming", "CA1704:IdentifiersShouldBeSpelledCorrectly", MessageId = "Abap")]
        Abap,
        [Parameter(Value = "ActionScript")]
        ActionScript,
        Ada,
        Apex,
        [Parameter(Value = "AppleScript")]
        AppleScript,
        Arc,
        [SuppressMessage("Microsoft.Naming", "CA1704:IdentifiersShouldBeSpelledCorrectly", MessageId = "Arduino")]
        Arduino,
        [SuppressMessage("Microsoft.Naming", "CA1704:IdentifiersShouldBeSpelledCorrectly", MessageId = "Conf")]
        [Parameter(Value = "ApacheConf")]
        ApacheConf,
        Asp,
        Assembly,
        [SuppressMessage("Microsoft.Naming", "CA1704:IdentifiersShouldBeSpelledCorrectly", MessageId = "Augeas")]
        Augeas,
        [SuppressMessage("Microsoft.Naming", "CA1702:CompoundWordsShouldBeCasedCorrectly", MessageId = "HotKey")]
        [SuppressMessage("Microsoft.Naming", "CA1702:CompoundWordsShouldBeCasedCorrectly", MessageId = "HotKey")]
        [Parameter(Value = "AutoHotkey")]
        AutoHotKey,
        [SuppressMessage("Microsoft.Naming", "CA1704:IdentifiersShouldBeSpelledCorrectly", MessageId = "Awk")]
        Awk,
        [SuppressMessage("Microsoft.Naming", "CA1704:IdentifiersShouldBeSpelledCorrectly", MessageId = "Batchfile")]
        Batchfile,
        [SuppressMessage("Microsoft.Naming", "CA1704:IdentifiersShouldBeSpelledCorrectly", MessageId = "Befunge")]
        Befunge,
        [Parameter(Value = "BlitzMax")]
        BlitzMax,
        Boo,
        Bro,
        [SuppressMessage("Microsoft.Naming", "CA1704:IdentifiersShouldBeSpelledCorrectly", MessageId = "C")]
        C,
        [SuppressMessage("Microsoft.Naming", "CA1709:IdentifiersShouldBeCasedCorrectly", MessageId = "hs")]
        [SuppressMessage("Microsoft.Naming", "CA1709:IdentifiersShouldBeCasedCorrectly", MessageId = "hs")]
        [SuppressMessage("Microsoft.Naming", "CA1704:IdentifiersShouldBeSpelledCorrectly", MessageId = "hs")]
        [Parameter(Value = "C2HS Haskell")]
        C2hsHaskell,
        Ceylon,
        Chuck,
        Clips,
        [SuppressMessage("Microsoft.Naming", "CA1704:IdentifiersShouldBeSpelledCorrectly", MessageId = "Clojure")]
        Clojure,
        Cobol,
        [SuppressMessage("Microsoft.Naming", "CA1704:IdentifiersShouldBeSpelledCorrectly", MessageId = "Cmake")]
        Cmake,
        [Parameter(Value = "C-ObjDump")]
        CObjDump,
        [Parameter(Value = "CoffeeScript")]
        CoffeeScript,
        [Parameter(Value = "ColdFusion")]
        ColdFusion,
        CommonLisp,
        Coq,
        [Parameter(Value = "cpp")]
        CPlusPlus,
        [Parameter(Value = "CSharp")]
        CSharp,
        Css,
        [SuppressMessage("Microsoft.Naming", "CA1704:IdentifiersShouldBeSpelledCorrectly", MessageId = "Cpp")]
        [Parameter(Value = "Cpp-ObjDump")]
        CppObjDump,
        Cucumber,
        [SuppressMessage("Microsoft.Naming", "CA1704:IdentifiersShouldBeSpelledCorrectly", MessageId = "Cython")]
        Cython,
        [SuppressMessage("Microsoft.Naming", "CA1704:IdentifiersShouldBeSpelledCorrectly", MessageId = "D")]
        D,
        [Parameter(Value = "D-ObjDump")]
        DObjDump,
        [SuppressMessage("Microsoft.Naming", "CA1704:IdentifiersShouldBeSpelledCorrectly", MessageId = "Darcs")]
        [Parameter(Value = "DarcsPatch")]
        DarcsPatch,
        Dart,
        [SuppressMessage("Microsoft.Naming", "CA1704:IdentifiersShouldBeSpelledCorrectly", MessageId = "Dcpu")]
        [Parameter(Value = "DCPU-16 ASM")]
        Dcpu16Asm,
        Dot,
        Dylan,
        [SuppressMessage("Microsoft.Naming", "CA1709:IdentifiersShouldBeCasedCorrectly", MessageId = "Ec")]
        [SuppressMessage("Microsoft.Naming", "CA1704:IdentifiersShouldBeSpelledCorrectly", MessageId = "Ec")]
        Ec,
        [SuppressMessage("Microsoft.Naming", "CA1704:IdentifiersShouldBeSpelledCorrectly", MessageId = "Ecere")]
        [Parameter(Value = "Ecere Projects")]
        EcereProjects,
        [SuppressMessage("Microsoft.Naming", "CA1704:IdentifiersShouldBeSpelledCorrectly", MessageId = "Ecl")]
        Ecl,
        [SuppressMessage("Microsoft.Naming", "CA1704:IdentifiersShouldBeSpelledCorrectly", MessageId = "Edn")]
        Edn,
        Eiffel,
        [SuppressMessage("Microsoft.Naming", "CA1704:IdentifiersShouldBeSpelledCorrectly", MessageId = "Elixir")]
        [SuppressMessage("Microsoft.Naming", "CA1704:IdentifiersShouldBeSpelledCorrectly", MessageId = "Elixir")]
        Elixir,
        Elm,
        [SuppressMessage("Microsoft.Naming", "CA1704:IdentifiersShouldBeSpelledCorrectly", MessageId = "Emacs")]
        [SuppressMessage("Microsoft.Naming", "CA1704:IdentifiersShouldBeSpelledCorrectly", MessageId = "Emacs")]
        EmacsLisp,
        [SuppressMessage("Microsoft.Naming", "CA1704:IdentifiersShouldBeSpelledCorrectly", MessageId = "Erlang")]
        [SuppressMessage("Microsoft.Naming", "CA1704:IdentifiersShouldBeSpelledCorrectly", MessageId = "Erlang")]
        Erlang,
        [Parameter(Value = "F#")]
        FSharp,
        Factor,
        Fancy,
        [SuppressMessage("Microsoft.Naming", "CA1704:IdentifiersShouldBeSpelledCorrectly", MessageId = "Fantom")]
        [SuppressMessage("Microsoft.Naming", "CA1704:IdentifiersShouldBeSpelledCorrectly", MessageId = "Fantom")]
        Fantom,
        Fish,
        Forth,
        Fortran,
        Gas,
        [SuppressMessage("Microsoft.Naming", "CA1704:IdentifiersShouldBeSpelledCorrectly", MessageId = "Genshi")]
        [SuppressMessage("Microsoft.Naming", "CA1704:IdentifiersShouldBeSpelledCorrectly", MessageId = "Genshi")]
        Genshi,
        [Parameter(Value = "Gentoo Build")]
        GentooBuild,
        [SuppressMessage("Microsoft.Naming", "CA1704:IdentifiersShouldBeSpelledCorrectly", MessageId = "Eclass")]
        [SuppressMessage("Microsoft.Naming", "CA1704:IdentifiersShouldBeSpelledCorrectly", MessageId = "Eclass")]
        [Parameter(Value = "Gentoo Eclass")]
        GentooEclass,
        [SuppressMessage("Microsoft.Naming", "CA1704:IdentifiersShouldBeSpelledCorrectly", MessageId = "Gettext")]
        [SuppressMessage("Microsoft.Naming", "CA1704:IdentifiersShouldBeSpelledCorrectly", MessageId = "Gettext")]
        [Parameter(Value = "Gettext Catalog")]
        GettextCatalog,
        [SuppressMessage("Microsoft.Naming", "CA1704:IdentifiersShouldBeSpelledCorrectly", MessageId = "Glsl")]
        [SuppressMessage("Microsoft.Naming", "CA1704:IdentifiersShouldBeSpelledCorrectly", MessageId = "Glsl")]
        Glsl,
        Go,
        [SuppressMessage("Microsoft.Naming", "CA1704:IdentifiersShouldBeSpelledCorrectly", MessageId = "Gosu")]
        [SuppressMessage("Microsoft.Naming", "CA1704:IdentifiersShouldBeSpelledCorrectly", MessageId = "Gosu")]
        Gosu,
        Groff,
        Groovy,
        [Parameter(Value = "Groovy Server Pages")]
        GroovyServerPages,
        [SuppressMessage("Microsoft.Naming", "CA1704:IdentifiersShouldBeSpelledCorrectly", MessageId = "Haml")]
        [SuppressMessage("Microsoft.Naming", "CA1704:IdentifiersShouldBeSpelledCorrectly", MessageId = "Haml")]
        Haml,
        [SuppressMessage("Microsoft.Naming", "CA1702:CompoundWordsShouldBeCasedCorrectly", MessageId = "HandleBars")]
        [SuppressMessage("Microsoft.Naming", "CA1702:CompoundWordsShouldBeCasedCorrectly", MessageId = "HandleBars")]
        [Parameter(Value = "HandleBars")]
        HandleBars,
        Haskell,
        [SuppressMessage("Microsoft.Naming", "CA1704:IdentifiersShouldBeSpelledCorrectly", MessageId = "Haxe")]
        Haxe,
        Http,
        [SuppressMessage("Microsoft.Naming", "CA1704:IdentifiersShouldBeSpelledCorrectly", MessageId = "Ini")]
        Ini,
        [SuppressMessage("Microsoft.Naming", "CA1709:IdentifiersShouldBeCasedCorrectly", MessageId = "Io")]
        Io,
        [SuppressMessage("Microsoft.Naming", "CA1704:IdentifiersShouldBeSpelledCorrectly", MessageId = "Ioke")]
        Ioke,
        [SuppressMessage("Microsoft.Naming", "CA1704:IdentifiersShouldBeSpelledCorrectly", MessageId = "Irc")]
        [Parameter(Value = "IRC log")]
        IrcLog,
        [SuppressMessage("Microsoft.Naming", "CA1704:IdentifiersShouldBeSpelledCorrectly", MessageId = "J")]
        J,
        Java,
        [Parameter(Value = "Java Server Pages")]
        JavaServerPages,
        JavaScript,
        Json,
        Julia,
        [Parameter(Value = "Jupyter Notebook")]
        JupyterNotebook,
        [SuppressMessage("Microsoft.Naming", "CA1704:IdentifiersShouldBeSpelledCorrectly", MessageId = "Kotlin")]
        Kotlin,
        Lasso,
        Less,
        [SuppressMessage("Microsoft.Naming", "CA1704:IdentifiersShouldBeSpelledCorrectly", MessageId = "Lfe")]
        Lfe,
        [Parameter(Value = "LillyPond")]
        LillyPond,
        [Parameter(Value = "Literate CoffeeScript")]
        LiterateCoffeeScript,
        [Parameter(Value = "Literate Haskell")]
        LiterateHaskell,
        [Parameter(Value = "LiveScript")]
        LiveScript,
        [SuppressMessage("Microsoft.Naming", "CA1704:IdentifiersShouldBeSpelledCorrectly", MessageId = "Llvm")]
        Llvm,
        Logos,
        [SuppressMessage("Microsoft.Naming", "CA1704:IdentifiersShouldBeSpelledCorrectly", MessageId = "Logtalk")]
        Logtalk,
        [SuppressMessage("Microsoft.Naming", "CA1704:IdentifiersShouldBeSpelledCorrectly", MessageId = "Lua")]
        Lua,
        [SuppressMessage("Microsoft.Naming", "CA1704:IdentifiersShouldBeSpelledCorrectly", MessageId = "M")]
        M,
        [SuppressMessage("Microsoft.Naming", "CA1704:IdentifiersShouldBeSpelledCorrectly", MessageId = "Makefile")]
        Makefile,
        [SuppressMessage("Microsoft.Naming", "CA1704:IdentifiersShouldBeSpelledCorrectly", MessageId = "Mako")]
        Mako,
        Markdown,
        [SuppressMessage("Microsoft.Naming", "CA1704:IdentifiersShouldBeSpelledCorrectly", MessageId = "Matlab")]
        Matlab,
        Max,
        [Parameter(Value = "MiniD")]
        MiniD,
        [SuppressMessage("Microsoft.Naming", "CA1704:IdentifiersShouldBeSpelledCorrectly", MessageId = "Mirah")]
        Mirah,
        Monkey,
        [SuppressMessage("Microsoft.Naming", "CA1704:IdentifiersShouldBeSpelledCorrectly", MessageId = "Moocode")]
        Moocode,
        [SuppressMessage("Microsoft.Naming", "CA1704:IdentifiersShouldBeSpelledCorrectly", MessageId = "Moonscript")]
        Moonscript,
        [SuppressMessage("Microsoft.Naming", "CA1704:IdentifiersShouldBeSpelledCorrectly", MessageId = "Mupad")]
        Mupad,
        [SuppressMessage("Microsoft.Naming", "CA1704:IdentifiersShouldBeSpelledCorrectly", MessageId = "Myghty")]
        Myghty,
        [SuppressMessage("Microsoft.Naming", "CA1704:IdentifiersShouldBeSpelledCorrectly", MessageId = "Nemerle")]
        Nemerle,
        [SuppressMessage("Microsoft.Naming", "CA1704:IdentifiersShouldBeSpelledCorrectly", MessageId = "Nginx")]
        Nginx,
        Nimrod,
        [SuppressMessage("Microsoft.Naming", "CA1704:IdentifiersShouldBeSpelledCorrectly", MessageId = "Nsis")]
        Nsis,
        [SuppressMessage("Microsoft.Naming", "CA1709:IdentifiersShouldBeCasedCorrectly", MessageId = "Nu")]
        Nu,
        [SuppressMessage("Microsoft.Naming", "CA1704:IdentifiersShouldBeSpelledCorrectly", MessageId = "Num")]
        [Parameter(Value = "NumPY")]
        NumPY,
        [Parameter(Value = "ObjDump")]
        ObjDump,
        ObjectiveC,
        ObjectiveJ,
        [SuppressMessage("Microsoft.Naming", "CA1704:IdentifiersShouldBeSpelledCorrectly", MessageId = "Caml")]
        [Parameter(Value = "OCaml")]
        OCaml,
        [SuppressMessage("Microsoft.Naming", "CA1704:IdentifiersShouldBeSpelledCorrectly", MessageId = "Omgrofl")]
        Omgrofl,
        [SuppressMessage("Microsoft.Naming", "CA1704:IdentifiersShouldBeSpelledCorrectly", MessageId = "Ooc")]
        Ooc,
        [SuppressMessage("Microsoft.Naming", "CA1704:IdentifiersShouldBeSpelledCorrectly", MessageId = "Opa")]
        Opa,
        [Parameter(Value = "OpenCL")]
        OpenCL,
        [SuppressMessage("Microsoft.Naming", "CA1704:IdentifiersShouldBeSpelledCorrectly", MessageId = "Abl")]
        [Parameter(Value = "OpenEdge ABL")]
        OpenEdgeAbl,
        Parrot,
        [Parameter(Value = "Parrot Assembly")]
        ParrotAssembly,
        [Parameter(Value = "Parrot Internal Representation")]
        ParrotInternalRepresentation,
        Pascal,
        Perl,
        [SuppressMessage("Microsoft.Naming", "CA1704:IdentifiersShouldBeSpelledCorrectly", MessageId = "Php")]
        Php,
        Pike,
        [Parameter(Value = "PogoScript")]
        PogoScript,
        [Parameter(Value = "PowerShell")]
        PowerShell,
        Processing,
        Prolog,
        Puppet,
        [Parameter(Value = "Pure Data")]
        PureData,
        Python,
        [SuppressMessage("Microsoft.Naming", "CA1704:IdentifiersShouldBeSpelledCorrectly", MessageId = "Traceback")]
        [Parameter(Value = "Python traceback")]
        PythonTraceback,
        [SuppressMessage("Microsoft.Naming", "CA1704:IdentifiersShouldBeSpelledCorrectly", MessageId = "R")]
        R,
        Racket,
        [SuppressMessage("Microsoft.Naming", "CA1704:IdentifiersShouldBeSpelledCorrectly", MessageId = "Ragel")]
        [Parameter(Value = "Ragel in Ruby Host")]
        RagelInRubyHost,
        [Parameter(Value = "Raw token data")]
        RawTokenData,
        [SuppressMessage("Microsoft.Naming", "CA1704:IdentifiersShouldBeSpelledCorrectly", MessageId = "Rebol")]
        Rebol,
        [SuppressMessage("Microsoft.Naming", "CA1704:IdentifiersShouldBeSpelledCorrectly", MessageId = "Redcode")]
        Redcode,
        [SuppressMessage("Microsoft.Naming", "CA1702:CompoundWordsShouldBeCasedCorrectly", MessageId = "ReStructured")]
        [SuppressMessage("Microsoft.Naming", "CA1709:IdentifiersShouldBeCasedCorrectly", MessageId = "Re")]
        [Parameter(Value = "reStructuredText")]
        ReStructuredText,
        [SuppressMessage("Microsoft.Naming", "CA1704:IdentifiersShouldBeSpelledCorrectly", MessageId = "Rhtml")]
        Rhtml,
        Rouge,
        Ruby,
        Rust,
        [SuppressMessage("Microsoft.Naming", "CA1704:IdentifiersShouldBeSpelledCorrectly", MessageId = "Scala")]
        Scala,
        Scheme,
        Sage,
        Sass,
        [SuppressMessage("Microsoft.Naming", "CA1704:IdentifiersShouldBeSpelledCorrectly", MessageId = "Scilab")]
        Scilab,
        [SuppressMessage("Microsoft.Naming", "CA1704:IdentifiersShouldBeSpelledCorrectly", MessageId = "Scss")]
        Scss,
        Self,
        Shell,
        Slash,
        Smalltalk,
        Smarty,
        Squirrel,
        [Parameter(Value = "Standard ML")]
        StandardML,
        [SuppressMessage("Microsoft.Naming", "CA1702:CompoundWordsShouldBeCasedCorrectly", MessageId = "SuperCollider")]
        [Parameter(Value = "SuperCollider")]
        SuperCollider,
        [Parameter(Value = "Swift")]
        Swift,
        [SuppressMessage("Microsoft.Naming", "CA1704:IdentifiersShouldBeSpelledCorrectly", MessageId = "Tcl")]
        Tcl,
        [SuppressMessage("Microsoft.Naming", "CA1704:IdentifiersShouldBeSpelledCorrectly", MessageId = "Tcsh")]
        Tcsh,
        Tea,
        [SuppressMessage("Microsoft.Naming", "CA1709:IdentifiersShouldBeCasedCorrectly", MessageId = "Te")]
        [SuppressMessage("Microsoft.Naming", "CA1704:IdentifiersShouldBeSpelledCorrectly", MessageId = "Te")]
        [Parameter(Value = "TeX")]
        TeX,
        Textile,
        [SuppressMessage("Microsoft.Naming", "CA1704:IdentifiersShouldBeSpelledCorrectly", MessageId = "Toml")]
        Toml,
        Turing,
        Twig,
        [SuppressMessage("Microsoft.Naming", "CA1704:IdentifiersShouldBeSpelledCorrectly", MessageId = "Txl")]
        Txl,
        [SuppressMessage("Microsoft.Naming", "CA1702:CompoundWordsShouldBeCasedCorrectly", MessageId = "TypeScript")]
        [Parameter(Value = "TypeScript")]
        TypeScript,
        [SuppressMessage("Microsoft.Naming", "CA1704:IdentifiersShouldBeSpelledCorrectly", MessageId = "Parallel")]
        [Parameter(Value = "Unified Parallel C")]
        UnifiedParallelC,
        Unknown,
        [SuppressMessage("Microsoft.Naming", "CA1704:IdentifiersShouldBeSpelledCorrectly", MessageId = "Vala")]
        Vala,
        Verilog,
        [SuppressMessage("Microsoft.Naming", "CA1704:IdentifiersShouldBeSpelledCorrectly", MessageId = "Vhdl")]
        Vhdl,
        [Parameter(Value = "VimL")]
        VimL,
        VisualBasic,
        Volt,
        Wisp,
        [SuppressMessage("Microsoft.Naming", "CA1709:IdentifiersShouldBeCasedCorrectly", MessageId = "Xc")]
        [SuppressMessage("Microsoft.Naming", "CA1704:IdentifiersShouldBeSpelledCorrectly", MessageId = "Xc")]
        Xc,
        Xml,
        [SuppressMessage("Microsoft.Naming", "CA1704:IdentifiersShouldBeSpelledCorrectly", MessageId = "Proc")]
        [Parameter(Value = "XProc")]
        XProc,
        [Parameter(Value = "XQuery")]
        XQuery,
        [SuppressMessage("Microsoft.Naming", "CA1709:IdentifiersShouldBeCasedCorrectly", MessageId = "Xs")]
        [SuppressMessage("Microsoft.Naming", "CA1704:IdentifiersShouldBeSpelledCorrectly", MessageId = "Xs")]
        Xs,
        Xslt,
        [SuppressMessage("Microsoft.Naming", "CA1704:IdentifiersShouldBeSpelledCorrectly", MessageId = "Xtend")]
        Xtend,
        [SuppressMessage("Microsoft.Naming", "CA1704:IdentifiersShouldBeSpelledCorrectly", MessageId = "Yaml")]
        Yaml
#pragma warning restore 1591
    }

    /// <summary>
    /// Licenses than can be searched on GitHub
    /// https://help.github.com/articles/searching-repositories#search-by-license
    /// </summary>
    public enum RepoSearchLicense
    {
        [Parameter(Value = "afl-3.0")]
        AcademicFree_3_0,
        [Parameter(Value = "apache-2.0")]
        Apache_2_0,
        [Parameter(Value = "artistic-2.0")]
        Artistic_2_0,
        [Parameter(Value = "bsl-1.0")]
        BoostSoftware_1_0,
        [Parameter(Value = "0bsd")]
        BSD0Clause,
        [Parameter(Value = "bsd-2-clause")]
        BSD2Clause,
        [Parameter(Value = "bsd-3-clause")]
        BSD3Clause,
        [Parameter(Value = "bsd-3-clause-clear")]
        BSD3ClauseClear,
        [Parameter(Value = "bsd-4-clause")]
        BSD4Clause,
        [Parameter(Value = "cc")]
        CreativeCommons,
        [Parameter(Value = "cc0-1.0")]
        CreativeCommonsZero_1_0,
        [Parameter(Value = "cc-by-4.0")]
        CreativeCommonsAtrribution_4_0,
        [Parameter(Value = "cc-by-sa-4.0")]
        CreativeCommonsAttributionShareAlike_4_0,
        [Parameter(Value = "cecill-2.1")]
        CeCILL_2_1,
        [Parameter(Value = "wtfpl")]
        DoWhatTheFYouWant,
        [Parameter(Value = "ecl-2.0")]
        EducationalCommunity_2_0,
        [Parameter(Value = "epl-1.0")]
        EclipsePublic_1_0,
        [Parameter(Value = "epl-2.0")]
        EclipsePublic_2_0,
        [Parameter(Value = "eupl-1.1")]
        EuropeanUnionPublic_1_1,
        [Parameter(Value = "eupl-1.2")]
        EuropeanUnionPublic_1_2,
        [Parameter(Value = "agpl-3.0")]
        GNUAfferoGeneralPublic_3_0,
        [Parameter(Value = "gpl")]
        GNUGeneralPublic,
        [Parameter(Value = "gpl-2.0")]
        GNUGeneralPublic_2_0,
        [Parameter(Value = "gpl-3.0")]
        GNUGeneralPublic_3_0,
        [Parameter(Value = "lgpl")]
        GNULesserGeneralPublic,
        [Parameter(Value = "lgpl-2.1")]
        GNULesserGeneralPublic_2_1,
        [Parameter(Value = "lgpl-3.0")]
        GNULesserGeneralPublic_3_0,
        [Parameter(Value = "isc")]
        ISC,
        [Parameter(Value = "lppl-1.3c")]
        LatexProjectPublic,
        [Parameter(Value = "ms-pl")]
        MicrosoftPublic,
        [Parameter(Value = "ms-rl")]
        MicrosoftReciprocal,
        [Parameter(Value = "mit")]
        MIT,
        [Parameter(Value = "mpl-2.0")]
        MozillaPublic_2_0,
        [Parameter(Value = "odbl-1.0")]
        ODCOpenDatabase,
        [Parameter(Value = "osl-3.0")]
        OpenSoftware_3_0,
        [Parameter(Value = "postgresql")]
        PostgreseSQL,
        [Parameter(Value = "ofl-1.1")]
        SILOpenFont,
        [Parameter(Value = "upl-1.0")]
        UniversalPermissive,
        [Parameter(Value = "ncsa")]
        NSCAOpenSource,
        [Parameter(Value = "unlicense")]
        TheUnlicense,
        [Parameter(Value = "vim")]
        Vim,
        [Parameter(Value = "zlib")]
        ZLib
    }

    /// <summary>
    /// sorting repositories by any of below
    /// https://help.github.com/articles/searching-repositories#sorting
    /// </summary>
    public enum RepoSearchSort
    {
        /// <summary>
        /// search by number of stars
        /// </summary>
        [Parameter(Value = "stars")]
        Stars,
        /// <summary>
        /// search by number of forks
        /// </summary>
        [Parameter(Value = "forks")]
        Forks,
        /// <summary>
        /// search by last updated
        /// </summary>
        [Parameter(Value = "updated")]
        Updated
    }

    /// <summary>
    /// https://help.github.com/articles/searching-repositories#forks
    /// Specifying whether forked repositories should be included in results or not.
    /// </summary>
    public enum ForkQualifier
    {
        /// <summary>
        /// only search for forked repos
        /// </summary>
        [Parameter(Value = "only")]
        OnlyForks,
        /// <summary>
        /// include forked repos into the search
        /// </summary>
        [Parameter(Value = "true")]
        IncludeForks
    }
}