using System.Collections;
using System.Collections.Generic;
using UnityEngine;
using DG.Tweening;

using HeavenStudio.Util;

using HeavenStudio.Games;

using System;
using System.Linq;
using System.Reflection;

namespace HeavenStudio
{
    public class Minigames
    {
        public class Minigame
        {
            public string name;
            public string displayName;
            public string color;
            public GameObject holder;
            public bool threeD;
            public bool fxOnly;
            public List<GameAction> actions = new List<GameAction>();

            public Minigame(string name, string displayName, string color, bool threeD, bool fxOnly, List<GameAction> actions)
            {
                this.name = name;
                this.displayName = displayName;
                this.color = color;
                this.actions = actions;
                this.threeD = threeD;
                this.fxOnly = fxOnly;
            }
        }

        public class GameAction
        {
            public string actionName;
            public EventCallback function;
            public float defaultLength;
            public bool resizable;
            public List<Param> parameters;
            public bool hidden;
            public EventCallback inactiveFunction;

            /// <summary>
            /// <para>Creates a block that can be used in the editor. The block's function and attributes are defined in the parentheses.</para>
            /// <para>Note: Every parameter after the second one is an optional parameter. You can change optional parameters by adding (name): (value) after the second parameter.</para>
            /// </summary>
            /// <param name="actionName">Name of the block</param>
            /// <param name="function"><para>What the block does when read during playback</para>
            /// <para>Only does this if the game that it is associated with is loaded.</para></param>
            /// <param name="defaultLength">How long the block appears in the editor</param>
            /// <param name="resizable">Allows the user to resize the block</param>
            /// <param name="parameters">Extra parameters for this block that change how it functions.</param>
            /// <param name="hidden">Prevents the block from being shown in the game list. Block will still function normally if it is in the timeline.</param>
            /// <param name="inactiveFunction">What the block does when read while the game it's associated with isn't loaded.</param>
            public GameAction(string actionName, EventCallback function, float defaultLength = 1, bool resizable = false, List<Param> parameters = null, bool hidden = false, EventCallback inactiveFunction = null)
            {
                this.actionName = actionName;
                this.function = function;
                this.defaultLength = defaultLength;
                this.resizable = resizable;
                this.parameters = parameters;
                this.hidden = hidden;
                if(inactiveFunction == null) inactiveFunction = delegate { };
                this.inactiveFunction = inactiveFunction;
            }
        }

        [System.Serializable]
        public class Param
        {
            public string propertyName;
            public object parameter;
            public string propertyCaption;
            public string tooltip;

            /// <summary>
            /// A parameter that changes the function of a GameAction.
            /// </summary>
            /// <param name="propertyName">The name of the variable that's being changed. Must be one of the variables in <see cref="Beatmap.Entity"/></param>
            /// <param name="parameter">The value of the parameter</param>
            /// <param name="propertyCaption">The name shown in the editor. Can be anything you want.</param>
            public Param(string propertyName, object parameter, string propertyCaption, string tooltip = "")
            {
                this.propertyName = propertyName;
                this.parameter = parameter;
                this.propertyCaption = propertyCaption;
                this.tooltip = tooltip;
            }
        }

        public delegate void EventCallback();

        // overengineered af but it's a modified version of
        // https://stackoverflow.com/a/19877141
        static List<Func<EventCaller, Minigame>> loadRunners;
        static void BuildLoadRunnerList() {
            loadRunners = System.Reflection.Assembly.GetExecutingAssembly()
            .GetTypes()
            .Where(x => x.Namespace == "HeavenStudio.Games.Loaders" && x.GetMethod("AddGame", BindingFlags.Public | BindingFlags.Static) != null)
            .Select(t => (Func<EventCaller, Minigame>) Delegate.CreateDelegate(
                typeof(Func<EventCaller, Minigame>), 
                null, 
                t.GetMethod("AddGame", BindingFlags.Public | BindingFlags.Static),
                false
                ))
            .ToList();
                
        }

        public static void Init(EventCaller eventCaller)
        {
            eventCaller.minigames = new List<Minigame>()
            {
                new Minigame("gameManager", "Game Manager", "", false, true, new List<GameAction>()
                {
                    new GameAction("switchGame",            delegate { GameManager.instance.SwitchGame(eventCaller.currentSwitchGame, eventCaller.currentEntity.beat); }, 0.5f, inactiveFunction: delegate { GameManager.instance.SwitchGame(eventCaller.currentSwitchGame, eventCaller.currentEntity.beat); }),
                    new GameAction("end",                   delegate { Debug.Log("end"); }),
                    new GameAction("skill star",            delegate {  }, 1f, true),
                    new GameAction("flash",                 delegate 
                    {

                        /*Color colA = eventCaller.currentEntity.colorA;
                        Color colB = eventCaller.currentEntity.colorB;

                        Color startCol = new Color(colA.r, colA.g, colA.b, eventCaller.currentEntity.valA);
                        Color endCol = new Color(colB.r, colB.g, colB.b, eventCaller.currentEntity.valB);

                        GameManager.instance.fade.SetFade(eventCaller.currentEntity.beat, eventCaller.currentEntity.length, startCol, endCol, eventCaller.currentEntity.ease);*/

                    }, 1f, true, new List<Param>() 
                    {
                        new Param("colorA", Color.white, "Start Color"),
                        new Param("colorB", Color.white, "End Color"),
                        new Param("valA", new EntityTypes.Float(0, 1, 1), "Start Opacity"),
                        new Param("valB", new EntityTypes.Float(0, 1, 0), "End Opacity"),
                        new Param("ease", EasingFunction.Ease.Linear, "Ease")
                    } ),
                    new GameAction("toggle inputs",            delegate
                    {
                        GameManager.instance.ToggleInputs(eventCaller.currentEntity.toggle);
                    }, 0.5f, true, new List<Param>()
                    {
                        new Param("toggle", true, "Enable Inputs")
                    }),
                }),
                new Minigame("countIn", "Count-Ins", "", false, true, new List<GameAction>()
                {
                    new GameAction("4 beat count-in",       delegate { var e = eventCaller.currentEntity; SoundEffects.FourBeatCountIn(e.beat, e.length / 4f, e.type); }, 4f, true, new List<Param>()
                    {
                        new Param("type", SoundEffects.CountInType.Normal, "Type", "The sounds to play for the count-in")
                    }),
                    new GameAction("8 beat count-in",       delegate { var e = eventCaller.currentEntity; SoundEffects.EightBeatCountIn(e.beat, e.length / 8f, e.type); }, 8f, true, new List<Param>()
                    {
                        new Param("type", SoundEffects.CountInType.Normal, "Type", "The sounds to play for the count-in")
                    }),
                    new GameAction("count",                 delegate { var e = eventCaller.currentEntity; SoundEffects.Count(e.type, e.toggle); }, 1f, false, new List<Param>()
                    {
                        new Param("type", SoundEffects.CountNumbers.One, "Number", "The sound to play"),
                        new Param("toggle", false, "Alt", "Whether or not the alternate version should be played")
                    }),
                    new GameAction("cowbell",               delegate { SoundEffects.Cowbell(); }, 1f),        
                    new GameAction("ready!",                delegate { var e = eventCaller.currentEntity; SoundEffects.Ready(e.beat, e.length / 2f); }, 2f, true),
                    new GameAction("and",                   delegate {SoundEffects.And(); }, 0.5f),
                    new GameAction("go!",                   delegate { SoundEffects.Go(eventCaller.currentEntity.toggle); }, 1f, false, new List<Param>()
                    {
                        new Param("toggle", false, "Alt", "Whether or not the alternate version should be played")
                    }),
                    // These are still here for backwards-compatibility but are hidden in the editor
                    new GameAction("4 beat count-in (alt)",     delegate { var e = eventCaller.currentEntity;  SoundEffects.FourBeatCountIn(e.beat, e.length, 1); }, 4f, hidden: true),
                    new GameAction("4 beat count-in (cowbell)", delegate { var e = eventCaller.currentEntity;  SoundEffects.FourBeatCountIn(e.beat, e.length, 2); }, 4f, hidden: true),
                    new GameAction("8 beat count-in (alt)",     delegate { var e = eventCaller.currentEntity;  SoundEffects.EightBeatCountIn(e.beat, e.length, 1); }, 4f, hidden: true),
                    new GameAction("8 beat count-in (cowbell)", delegate { var e = eventCaller.currentEntity;  SoundEffects.EightBeatCountIn(e.beat, e.length, 2); }, 4f, hidden: true),
                    new GameAction("one",                       delegate { SoundEffects.Count(0, false); }, 1f, hidden: true),
                    new GameAction("one (alt)",                 delegate { SoundEffects.Count(0, true); }, 1f, hidden: true),
                    new GameAction("two",                       delegate { SoundEffects.Count(1, false); }, 1f, hidden: true),
                    new GameAction("two (alt)",                 delegate { SoundEffects.Count(1, true); }, 1f, hidden: true),
                    new GameAction("three",                     delegate { SoundEffects.Count(2, false); }, 1f, hidden: true),
                    new GameAction("three (alt)",               delegate { SoundEffects.Count(2, true); }, 1f, hidden: true),
                    new GameAction("four",                      delegate { SoundEffects.Count(3, false); }, 1f, hidden: true),
                    new GameAction("four (alt)",                delegate { SoundEffects.Count(3, true); }, 1f, hidden: true),
                    new GameAction("go! (alt)",                 delegate { SoundEffects.Go(true); }, 1f, hidden: true),
                }),
            };
            
            BuildLoadRunnerList();
            foreach(var load in loadRunners)
            {
                Debug.Log("Running game loader " + RuntimeReflectionExtensions.GetMethodInfo(load).DeclaringType.Name);
                eventCaller.minigames.Add(load(eventCaller));
            }
        }
    }
}