#pragma warning disable 0162
#define PROFILE
using System;

namespace Pathfinding
{


    class Profile {
        const bool PROFILE_MEM = true;

        public string name;
        System.Diagnostics.Stopwatch w;
        int counter = 0;
        long mem = 0;
        long smem = 0;

        int control = 1 << 30;
        bool dontCountFirst = false;

        public int ControlValue () {
            return control;
        }

        public Profile (string name) {
            this.name = name;
            w = new System.Diagnostics.Stopwatch();
        }

        [System.Diagnostics.ConditionalAttribute("PROFILE")]
        public void Start () {
            if (PROFILE_MEM) {
                smem = System.GC.GetTotalMemory(false);
            }
            if (dontCountFirst && counter == 1) return;
            w.Start();
        }

        [System.Diagnostics.ConditionalAttribute("PROFILE")]
        public void Stop () {
            counter++;
            if (dontCountFirst && counter == 1) return;

            w.Stop();
            if (PROFILE_MEM) {
                mem += System.GC.GetTotalMemory(false)-smem;
            }

        }

        [System.Diagnostics.ConditionalAttribute("PROFILE")]
        /** Log using Debug.Log */
        public void Log () {
            UnityEngine.Debug.Log (ToString());
        }

        [System.Diagnostics.ConditionalAttribute("PROFILE")]
        /** Log using System.Console */
        public void ConsoleLog () {
            System.Console.WriteLine (ToString());
        }

        [System.Diagnostics.ConditionalAttribute("PROFILE")]
        public void Stop (int control) {
            counter++;
            if (dontCountFirst && counter == 1) return;

            w.Stop();
            if (PROFILE_MEM) {
                mem += System.GC.GetTotalMemory(false)-smem;
            }

            if (this.control == 1 << 30) this.control = control;
            else if (this.control != control) throw new System.Exception("Control numbers do not match " + this.control + " != " + control);
        }

        [System.Diagnostics.ConditionalAttribute("PROFILE")]
        public void Control (Profile other) {
            if (ControlValue() != other.ControlValue()) {
                throw new System.Exception("Control numbers do not match ("+name + " " + other.name + ") " + this.ControlValue() + " != " + other.ControlValue());
            }
        }

        public override string ToString () {
            string s = name + " " + w.Elapsed.TotalMilliseconds.ToString("0.0 ms") + " avg: " + (w.Elapsed.TotalMilliseconds/counter).ToString("0.00 ms");
            if (PROFILE_MEM) {
                s += " avg mem: " + (mem/(1.0*counter)).ToString("0 bytes");
            }
            return s;
        }
    }
}