using System;
using System.Collections.Generic;
using System.Linq;
using JD.Kernel.Structs;
using JD.LogService;
using TeaBox;
using JD.Serialization;

namespace JD.Timeline.Dance
{
    /// <summary>
    /// Validation to check that dance tape is valid
    /// </summary>
    public class DanceDocumentValidation
    {
        public static void Validate(Tape tape, ILogger context)
        {
            ValidateMoveModels(context, tape);
            ValidatePictoModels(context, tape);
            foreach (var track in tape.Tracks)
            {
                if (track is MoveTrack)
                {
                    var moveTrack = track as MoveTrack;
                    switch (moveTrack.MoveType)
                    {
                        case MotionClip.MoveType_Enum.MoveType_HandOnly:
                            ValidateMoveTrack(context, moveTrack);
                            break;
                        case MotionClip.MoveType_Enum.MoveType_FullBody:
                            ValidateCameraMoveTrack(context, moveTrack);
                            break;
                    }
                }
                else if (track is PictoTrack)
                {
                    ValidatePictoTrack(context, track as PictoTrack);
                }
                else if (track is GoldEffectTrack)
                {
                    ValidateGoldEffectTrack(context, track as GoldEffectTrack);
                }
                else if (track is CommunityDancerTrack)
                {
                    //No validation yet
                }
                else
                {
                    context.LogError("Track '{0}' has to be a MoveTrack or a PictoTrack.", track.Name);
                }
            }

            foreach (var clip in tape.Clips)
            {
                if (clip.CollisionsWithOther)
                {
                    context.LogWarning(new FileLocation(tape.Id, new List<uint> { clip.Id }), $"{clip.ToStringDetailed()} has a collision with an other clip.");
                }
                var sameIdClipCount = tape.Clips.Count(x => x.Id == clip.Id);
                if (sameIdClipCount != 1)
                {
                    context.LogError(new FileLocation(tape.Id, new List<uint> { clip.Id }), $"{sameIdClipCount} clips have the same id '{clip.Id}'");
                }
            }
        }

        private static void ValidateMoveTrack(ILogger context, MoveTrack track)
        {
            if (!MoveTrack.NameValidationRegexHandOnly.IsMatch(track.Name))
            {
                context.LogError($"Track '{track.Name}' has an invalid name.");
            }

            foreach (var clip in track.Clips())
            {
                if (clip is MotionClip)
                {
                    var motionClip = clip as MotionClip;
                    if (motionClip.CoachId != track.CoachId)
                    {
                        context.LogError(new FileLocation(track.Tape.Id, new List<uint> { clip.Id }), $"{clip.ToStringDetailed()} CoachId is different from Track one.");
                    }
                    if (motionClip.MoveType != MotionClip.MoveType_Enum.MoveType_HandOnly)
                    {
                        context.LogError(new FileLocation(track.Tape.Id, new List<uint> { clip.Id }), $"{clip.ToStringDetailed()} MoveType is invalid.");
                    }
                    if (string.IsNullOrEmpty(motionClip.Model.Name))
                    {
                        context.LogError(new FileLocation(track.Tape.Id, new List<uint> { clip.Id }), $"{clip.ToStringDetailed()} has a model with empty name.");
                    }
                }
                else
                {
                    context.LogError(new FileLocation(track.Tape.Id, new List<uint> { clip.Id }), $"{clip.ToStringDetailed()} has in an invalid type.");
                }
            }
        }

        private static void ValidateMoveModels(ILogger context, Tape tape)
        {
            foreach (var moveModel in tape.MoveModels())
            {
                foreach (var clip in moveModel.Instances)
                {
                    if (Math.Abs(clip.BeatDuration - moveModel.BeatDuration) > float.Epsilon)
                    {
                        context.LogError(new FileLocation(tape.Id, new List<uint> { clip.Id }), $"{clip.ToStringDetailed()} has a different duration than its model.");
                    }
                    if (clip.Color != moveModel.Color)
                    {
                        context.LogError(new FileLocation(tape.Id, new List<uint> { clip.Id }), $"{clip.ToStringDetailed()} has a different color than its model.");
                    }
                    if (!clip.ClassifierPath.Equals(moveModel.ClassifierPath))
                    {
                        context.LogError(new FileLocation(tape.Id, new List<uint> { clip.Id }), $"{clip.ToStringDetailed()} has a different classifierpath than its model.");
                    }
                    if (clip.MoveType != moveModel.MoveType)
                    {
                        context.LogError(new FileLocation(tape.Id, new List<uint> { clip.Id }), $"{clip.ToStringDetailed()} has a different move type than its model.");
                    }
                }
            }
        }

        private static void ValidateCameraMoveTrack(ILogger context, MoveTrack track)
        {
            if (!MoveTrack.NameValidationRegexFullBody.IsMatch(track.Name))
            {
                context.LogError($"Track '{track.Name}' has an invalid name.");
            }
            foreach (var clip in track.Clips())
            {
                if (clip is MotionClip)
                {
                    var motionClip = clip as MotionClip;
                    if (motionClip.CoachId != track.CoachId)
                    {
                        context.LogError(new FileLocation(track.Tape.Id, new List<uint> { clip.Id }), $"{clip.ToStringDetailed()} CoachId is different from Track one.");
                    }
                    if (motionClip.MoveType != MotionClip.MoveType_Enum.MoveType_FullBody)
                    {
                        context.LogError(new FileLocation(track.Tape.Id, new List<uint> { clip.Id }), $"{clip.ToStringDetailed()} MoveType is invalid.");
                    }
                    if (string.IsNullOrEmpty(motionClip.Model.Name))
                    {
                        context.LogError(new FileLocation(track.Tape.Id, new List<uint> { clip.Id }), $"{clip.ToStringDetailed()} has a model with empty name.");
                    }
                }
                else
                {
                    context.LogError(new FileLocation(track.Tape.Id, new List<uint> { clip.Id }), $"{clip.ToStringDetailed()} has in an invalid type. It should be a MotionClip.");
                }
            }
        }

        private static void ValidatePictoTrack(ILogger context, PictoTrack track)
        {
            if (!PictoTrack.NameValidationRegex.IsMatch(track.Name))
            {
                context.LogError($"Track '{track.Name}' has an invalid name.");
            }
            foreach (var clip in track.Clips())
            {
                if (clip is PictogramClip)
                {
                    var pictoClip = clip as PictogramClip;
                    if (string.IsNullOrEmpty(pictoClip.Model.Name))
                    {
                        context.LogError(new FileLocation(track.Tape.Id, new List<uint> { clip.Id }), $"{clip.ToStringDetailed()} has a model with empty name.");
                    }
                }
                else
                {
                    context.LogError(new FileLocation(track.Tape.Id, new List<uint> { clip.Id }), $"{clip.ToStringDetailed()} has in an invalid type. It shloud be a PictogramClip.");
                }
            }
        }

        private static void ValidatePictoModels(ILogger context, Tape tape)
        {
            foreach (var pictogramModel in tape.PictogramModels())
            {
                foreach (var clip in pictogramModel.Instances)
                {
                    if (!clip.PictoPath.Equals(pictogramModel.PictoPath))
                    {
                        context.LogError(new FileLocation(tape.Id, new List<uint> { clip.Id }), $"{clip.ToStringDetailed()} has a different classifierpath than its model.");
                    }
                }
            }
        }

        private static void ValidateGoldEffectTrack(ILogger context, GoldEffectTrack track)
        {
            if (track.Name != GoldEffectTrack.DefaultName)
            {
                context.LogError($"Track '{track.Name}' has an invalid name.");
            }
            foreach (var clip in track.Clips())
            {
                if (clip is GoldEffectClip)
                {
                    var goldEffect = clip as GoldEffectClip;
                    if (Math.Abs(goldEffect.BeatDuration - GoldEffectClip.FixedDurationInBeats) > float.Epsilon)
                    {
                        context.LogError(new FileLocation(track.Tape.Id, new List<uint> { clip.Id }), $"{clip.ToStringDetailed()} duration needs to be {GoldEffectClip.FixedDurationInBeats}.");
                    }
                }
                else
                {
                    context.LogError(new FileLocation(track.Tape.Id, new List<uint> { clip.Id }), $"{clip.ToStringDetailed()} has in an invalid type. It should be a GoldEffectClip");
                }
            }
        }
    }
}