using System;
using System.IO;
using UnityEngine;

namespace Funique
{
    /// <summary>
    /// Funique file logger <br />
    /// Record to <seealso cref="Application.streamingAssetsPath"/> log.txt <br />
    /// ------------------------------------------------ <br />
    /// Funique 檔案紀錄者 <br />
    /// 紀錄到 <seealso cref="Application.streamingAssetsPath"/> log.txt
    /// </summary>
    internal sealed class FileLogger : ILogger
    {
#if UNITY_ANDROID
        string filename => Path.Combine(Application.persistentDataPath, "log.txt");
#else
        string filename => Path.Combine(Application.streamingAssetsPath, "log.txt");
#endif

        public FileLogger()
        {
            if (File.Exists(filename))
                File.Delete(filename);
        }

        public void Error(object message, string tag, int level)
        {
            if (FuniqueLogger.Level > level) return;
            string t = $"[Error | {tag}] {message}\n";
            File.AppendAllText(filename, t);
        }

        public void Error(object message, int level)
        {
            if (FuniqueLogger.Level > level) return;
            string t = $"[Error] {message}\n";
            File.AppendAllText(filename, t);
        }

        public void Log(object message, string tag, int level)
        {
            if (FuniqueLogger.Level > level) return;
            string t = $"[Log | {tag}] {message}\n";
            File.AppendAllText(filename, t);
        }

        public void Log(object message, int level)
        {
            if (FuniqueLogger.Level > level) return;
            string t = $"[Log] {message}\n";
            File.AppendAllText(filename, t);
        }

        public void Warning(object message, string tag, int level)
        {
            if (FuniqueLogger.Level > level) return;
            string t = $"[Warning | {tag}] {message}\n";
            File.AppendAllText(filename, t);
        }

        public void Warning(object message, int level)
        {
            if (FuniqueLogger.Level > level) return;
            string t = $"[Warning] {message}\n";
            File.AppendAllText(filename, t);
        }

        public void Assert(bool condition, object message, int level)
        {
            if (FuniqueLogger.Level > level) return;
            string t = $"[Assert] {message}\n";
            File.AppendAllText(filename, t);
        }

        public void Assert(bool condition, object message, string tag, int level)
        {
            if (FuniqueLogger.Level > level) return;
            string t = $"[Assert | {tag}] {message}\n";
            File.AppendAllText(filename, t);
        }

        public void Exception(Exception ex, int level)
        {
            if (FuniqueLogger.Level > level) return;
            string t = $"[Exception | {ex.Source}] {ex.Message}\n{ex.StackTrace}\n{ex.InnerException}";
            File.AppendAllText(filename, t);
        }
    }
}