using System;
using System.IO;
using System.Runtime.CompilerServices;
using System.Text;
using UnityEngine;

namespace ET
{
    public class FileLogger: ILog
    {
        private readonly StreamWriter stream;

        public FileLogger(string filepath = null)
        {
            if (filepath == null)
            {
#if UNITY_EDITOR || UNITY_STANDALONE
                filepath = "./";
#elif UNITY_ANDROID
                filepath = Application.persistentDataPath;
#endif
                filepath = Path.Combine(filepath, "Log.txt");
            }

            FileStream fs = File.Open(filepath, FileMode.OpenOrCreate, FileAccess.ReadWrite, FileShare.ReadWrite);
            fs.Seek(0, SeekOrigin.End);
            this.stream = new StreamWriter(fs, Encoding.UTF8);
            //this.stream = new StreamWriter(File.Open(path, FileMode.OpenOrCreate, FileAccess.ReadWrite, FileShare.ReadWrite));
            this.stream.AutoFlush = true;
        }

        public void Trace(string message)
        {
            this.stream.WriteLine(message);
            this.stream.Flush();
        }

        public void Warning(string message)
        {
            this.stream.WriteLine(message);
            this.stream.Flush();
        }

        public void Info(string message)
        {
            this.stream.WriteLine(message);
            this.stream.Flush();
        }

        public void Debug(string message)
        {
            this.stream.WriteLine(message);
            this.stream.Flush();
        }

        public void Error(string message)
        {
            this.stream.WriteLine(message);
            this.stream.Flush();
        }

        public void Trace(string message, params object[] args)
        {
            this.stream.WriteLine(message, args);
            this.stream.Flush();
        }

        public void Warning(string message, params object[] args)
        {
            this.stream.WriteLine(message, args);
            this.stream.Flush();
        }

        public void Info(string message, params object[] args)
        {
            this.stream.WriteLine(message, args);
            this.stream.Flush();
        }

        public void Debug(string message, params object[] args)
        {
            this.stream.WriteLine(message, args);
            this.stream.Flush();
        }

        public void Error(string message, params object[] args)
        {
            this.stream.WriteLine(message, args);
            this.stream.Flush();
        }

        public void Fatal(string message, params object[] args)
        {
            this.stream.WriteLine(message, args);
            this.stream.Flush();
        }
    }
}