namespace Guru.Editor
{
    using UnityEditor;
    using UnityEngine;
    using System;
    using System.IO;
    using System.Linq;
    
    public class AndroidProjectMod
    {
        private static readonly int TargetSDKVersion = 34;
        
        private static readonly string LauncherName = "launcherTemplate";
        private static string LauncherFullPath = Path.Combine(Application.dataPath, $"Plugins/Android/{LauncherName}.gradle");
        
        private static readonly string MainName = "mainTemplate";
        private static string MainFullPath = Path.Combine(Application.dataPath,  $"Plugins/Android/{MainName}.gradle");
        
        private static readonly string PropertiesName = "gradleTemplate";
        private static string PropertiesFullPath = Path.Combine(Application.dataPath,  $"Plugins/Android/{PropertiesName}.properties");
        
        public static void Apply()
        {
            FixLauncher();
            FixMain();
            FixProperties();
            CheckTargetSDKVersion();
        }


        private static void FixLauncher()
        {
            if (!File.Exists(LauncherFullPath))
            {
                CopyFile($"{LauncherName}.txt", LauncherFullPath);
                Debug.Log($"[MOD] --- Copy file to: {LauncherFullPath}");
                return;
            }

            var ptn1 = "**PACKAGING_OPTIONS**";
            var ptn2 = "abortOnError false";
            var lines = File.ReadAllLines(LauncherFullPath);

            string line = "";
            for (int i = 0; i < lines.Length; i++)
            {
                line = lines[i];
                if (line.Contains(ptn1))
                {
                    lines[i] = line.Replace(ptn1, "\n\n\tpackagingOptions {\n\t\texclude(\"META-INF/*.kotlin_module\")\n\t}\n\n");
                }

                if (line.Contains(ptn2))
                {
                    if (lines[i + 1].Contains("}"))
                    {
                        lines[i + 1] = lines[i + 1].Replace("}", "\tcheckReleaseBuilds false\n\t}");
                    }
                }
            }
            Debug.Log($"[MOD] --- Fix file at: {LauncherFullPath}");
            File.WriteAllLines(LauncherFullPath, lines);

        }
        private static void FixMain()
        {
            if (!File.Exists(MainFullPath))
            {
                Debug.Log($"[MOD] --- Copy file to: {MainFullPath}");
                CopyFile($"{MainName}.txt", MainFullPath);
            }
        }
        private static void FixProperties()
        {
            if (!File.Exists(PropertiesFullPath))
            {
                Debug.Log($"[MOD] --- Copy file to: {PropertiesFullPath}");
                CopyFile($"{PropertiesName}.txt", PropertiesFullPath);
            }
        }

        private static void CheckTargetSDKVersion()
        {
            var ver = (int) PlayerSettings.Android.targetSdkVersion;
            if (ver < TargetSDKVersion)
            {
                Debug.Log($"[MOD] --- Fix target sdk version -> {TargetSDKVersion}");
                PlayerSettings.Android.targetSdkVersion = (AndroidSdkVersions)TargetSDKVersion;
            }
        }

        #region File IO

        private static string GetMoveFilePath(string fileName)
        {
            var path = GuruEditorHelper.GetAssetPath(nameof(AndroidProjectMod), "Script", true);
            var files = Path.GetFullPath($"{path}/../../Files");
            return $"{files}/{fileName}";
        }
        private static void CopyFile(string fileName, string toPath)
        {
            var from = GetMoveFilePath(fileName);
            if (!string.IsNullOrEmpty(from))
            {
                if (File.Exists(from))
                {
                    File.Copy(from, toPath);
                }
            }
        }

        #endregion


        
    }
}