using System;
using System.IO;

using Microsoft.Xna.Framework;

using Terraria;
using Terraria.ID;
using Terraria.ModLoader;

namespace TimeStop
{
    public class TimeStop : Mod

    {
        public static int timeStopped;
        public static int preSpawnRate = -1;
        public enum MyMessageType : byte
        {
            timeStopBegan = 0,
            timeStopEnded = 1
        }
        public TimeStop()
        {
            Properties = new ModProperties()
            {
                Autoload = true,
            };
        }
        public override void HandlePacket(BinaryReader reader, int whoAmI)
        {
            // First we want to get the type of message that has been sent, so we can process its contents correctly.
            MyMessageType type = (MyMessageType)reader.ReadByte();

            switch (type)
            {
                case MyMessageType.timeStopBegan:
                    StopTime();
                    break;

                case MyMessageType.timeStopEnded:
                    StartTime();
                    break;
            }
        }

        public void StopTime()
        {
            timeStopped = 600;

            Main.NewText("Time Stop!");

            for (int i = 0; i < 200; ++i)
            {
                if (Main.npc[i].active)
                {
                    StopNPC(Main.npc[i]);
                }
            }
            for (int p = 0; p < 1000; ++p)
            {
                TimeStopPlayer mp = Main.player[Main.projectile[p].owner].GetModPlayer<TimeStopPlayer>(this);
                if (Main.projectile[p].active && (mp.stoppedTime != true || Main.projectile[p].melee == false || Main.projectile[p].friendly == false || Main.projectile[p].npcProj == true))
                {
                    StopProj(Main.projectile[p]);
                }
            }
        }
        public void StartTime()
        {
            timeStopped = 0;

            Main.NewText("Time Start!");

            for (int i = 0; i < 200; ++i)
            {
                if (Main.npc[i].active)
                {
                    StartNPC(Main.npc[i]);
                }
                for (int p = 0; p < 1000; ++p)
                {
                    TimeStopPlayer mp = Main.player[Main.projectile[p].owner].GetModPlayer<TimeStopPlayer>(this);
                    if (Main.projectile[p].active && (mp.stoppedTime != true || Main.projectile[p].melee == false || Main.projectile[p].friendly == false || Main.projectile[p].npcProj == true))
                    {
                        StartProj(Main.projectile[p]);
                    }
                }
            }
        }

        private void StopNPC(NPC npc)
        {
            TimeStopNPCInfo npcinfo = npc.GetModInfo<TimeStopNPCInfo>(this);

            npcinfo.preTimeStopVel = npc.velocity;
            npcinfo.timeStopPos = npc.position;
            npcinfo.preTimeStopDam = npc.damage;
            npcinfo.timeStopFrame = npc.frame;
            npcinfo.preTimeStopGrav = npc.noGravity;

            npc.damage = 0;
            npc.noGravity = true;
        }
        private void StartNPC(NPC npc)
        {
            TimeStopNPCInfo npcinfo = npc.GetModInfo<TimeStopNPCInfo>(this);

            npc.noGravity = false;
            npc.velocity = npcinfo.preTimeStopVel;
            npc.damage = npcinfo.preTimeStopDam;
        }
        private void StopProj(Projectile projectile)
        {
            TimeStopProjectileInfo projinfo = projectile.GetModInfo<TimeStopProjectileInfo>(this);

//            projinfo.preTimeStopVel = projectile.velocity;
//            projinfo.preTimeStopDam = projectile.damage;
//            projectile.velocity = Vector2.Zero;
//            projectile.damage = 0;
        }
        private void StartProj(Projectile projectile)
        {
            TimeStopProjectileInfo projinfo = projectile.GetModInfo<TimeStopProjectileInfo>(this);

            projectile.velocity = projinfo.preTimeStopVel;
            projectile.damage = projinfo.preTimeStopDam;
        }
    }
}