using System;
using System.Collections.Generic;
using System.Linq;

namespace Trash.Sonarr.ReleaseProfile
{
    using ProfileDataCollection = IDictionary<string, ProfileData>;

    public static class Utils
    {
        public static ProfileDataCollection FilterProfiles(ProfileDataCollection profiles)
        {
            static bool IsEmpty(ProfileData data)
            {
                return data.Required.Count == 0 && data.Ignored.Count == 0 && data.Preferred.Count == 0;
            }

            // A few false-positive profiles are added sometimes. We filter these out by checking if they
            // actually have meaningful data attached to them, such as preferred terms. If they are mostly empty,
            // we remove them here.
            return profiles
                .Where(kv => !IsEmpty(kv.Value))
                .ToDictionary(kv => kv.Key, kv => kv.Value);
        }

        public static void PrintTermsAndScores(ProfileDataCollection profiles)
        {
            Console.WriteLine("");

            foreach (var (name, profile) in profiles)
            {
                Console.WriteLine(name);

                if (profile.IncludePreferredWhenRenaming != null)
                {
                    Console.WriteLine("  Include Preferred when Renaming?");
                    Console.WriteLine("    " +
                                      (profile.IncludePreferredWhenRenaming.Value ? "CHECKED" : "NOT CHECKED"));
                    Console.WriteLine("");
                }

                static void PrintTerms(string title, IReadOnlyCollection<string> terms)
                {
                    if (terms.Count == 0)
                    {
                        return;
                    }

                    Console.WriteLine($"  {title}:");
                    foreach (var term in terms)
                    {
                        Console.WriteLine($"    {term}");
                    }

                    Console.WriteLine("");
                }

                PrintTerms("Must Contain", profile.Required);
                PrintTerms("Must Not Contain", profile.Ignored);

                if (profile.Preferred.Count > 0)
                {
                    Console.WriteLine("  Preferred:");
                    foreach (var (score, terms) in profile.Preferred)
                    {
                        foreach (var term in terms)
                        {
                            Console.WriteLine($"    {score,-10} {term}");
                        }
                    }
                }

                Console.WriteLine("");
            }
        }
    }
}