using System;
using System.Collections.Generic;
using System.IO;
using System.Linq;
using UnityEditor;
using UnityEngine;

public class AppBuildTab : EditorWindowTabBase
{
    // 整包构建配置
    private BuildTarget _appBuildTarget = BuildTarget.StandaloneWindows64;
    private string _appOutputPath = "Builds/App";
    private SceneAsset _entryScene;
    private bool _developmentBuild;

    internal override void OnGUI()
    {
        base.OnGUI();
        DrawAppBuildTab();
    }


    private void DrawAppBuildTab()
    {
        EditorGUILayout.Space();
        EditorGUILayout.LabelField("整包构建配置", EditorStyles.boldLabel);

        DrawBuildTarget(ref _appBuildTarget);
        DrawPathSelection("输出路径:", ref _appOutputPath);
        _developmentBuild = EditorGUILayout.Toggle("开发模式:", _developmentBuild);

        EditorGUILayout.Space();
        EditorGUILayout.LabelField("包含场景:", EditorStyles.boldLabel);
        DrawSceneList();

        EditorGUILayout.Space();
        if (GUILayout.Button("构建应用程序", GUILayout.Height(30)))
        {
            BuildApplication();
        }
    }

    private void DrawBuildTarget(ref BuildTarget target)
    {
        target = (BuildTarget)EditorGUILayout.EnumPopup("目标平台:", target);
    }

    private void DrawSceneList()
    {
        _entryScene = (SceneAsset)EditorGUILayout.ObjectField("启动场景", _entryScene, typeof(SceneAsset), false);
    }

    private void BuildApplication()
    {
        try
        {
            var options = new BuildPlayerOptions
            {
                scenes = new[] { AssetDatabase.GetAssetPath(_entryScene) },
                locationPathName = Path.Combine(_appOutputPath, GetExecutableName()),
                target = _appBuildTarget,
                options = _developmentBuild ? BuildOptions.Development : BuildOptions.None
            };

            var report = BuildPipeline.BuildPlayer(options);
            HandleBuildReport(report);
        }
        catch (Exception e)
        {
            EditorUtility.DisplayDialog("错误", $"构建过程中发生异常: {e.Message}", "确定");
        }
    }

    private void HandleBuildReport(UnityEditor.Build.Reporting.BuildReport report)
    {
        if (report.summary.result == UnityEditor.Build.Reporting.BuildResult.Succeeded)
        {
            EditorUtility.DisplayDialog("构建成功",
                $"应用程序构建完成！\n输出大小: {report.summary.totalSize / 1024 / 1024}MB", "确定");
        }
        else
        {
            EditorUtility.DisplayDialog("构建失败",
                $"错误信息: {report.summary}", "确定");
        }
    }

    private string GetExecutableName()
    {
        return _appBuildTarget switch
        {
            BuildTarget.StandaloneWindows64 => "Game.exe",
            BuildTarget.StandaloneOSX => "Game.app",
            BuildTarget.Android => "Game.apk",
            _ => "Game"
        };
    }
}