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

public class ChannelBuildTool
{
    public static readonly string[] SupportedChannels = { "GooglePlay", "Rustore", "Flexion" };

    private const string ExtraCfgRoot = "../ExtraPluginCfgs/Android";
    private const string TysdkPlugins = "Packages/tysdk/Plugins/Android";
    private const string TysdkFiles = "Packages/tysdk/Files";
    private const string AssetsPlugins = "Assets/Plugins/Android";

    private static readonly string[] GradleFiles =
    {
        "mainTemplate.gradle",
        "launcherTemplate.gradle",
        "settingsTemplate.gradle",
        "gradleTemplate.properties",
        "AndroidManifest.xml"
    };

    // ==================== Channel Switching ====================

    private static void SwitchChannel(string channel)
    {
        var channelDir = channel.ToLower();
        var cfgDir = Path.Combine(ExtraCfgRoot, channelDir);
        if (!Directory.Exists(cfgDir))
        {
            Debug.LogError($"[ChannelSwitch] Channel config not found: {cfgDir}");
            return;
        }

        Debug.Log($"[ChannelSwitch] Switching to {channel}...");
        currentChannel = channel;

        // 1. Sync AAR
        var srcAarDir = Path.Combine(cfgDir, "Plugins/Android");
        if (Directory.Exists(srcAarDir))
        {
            foreach (var oldAar in Directory.GetFiles(TysdkPlugins, "tuyoosdk_*.aar"))
                File.Delete(oldAar);
            foreach (var aar in Directory.GetFiles(srcAarDir, "*.aar"))
            {
                var dest = Path.Combine(TysdkPlugins, Path.GetFileName(aar));
                File.Copy(aar, dest, true);
                Debug.Log($"[ChannelSwitch] AAR: {aar} → {dest}");
            }
        }

        // 2. Clean up previous channel Java files
        foreach (var oldJava in Directory.GetFiles(TysdkPlugins, "ChannelHelpers.java"))
            File.Delete(oldJava);
        foreach (var oldJava in Directory.GetFiles(TysdkPlugins, "*SDKHelper.java"))
            File.Delete(oldJava);
        var oldConfig = Path.Combine(TysdkPlugins, "ConfigManager.java");
        if (File.Exists(oldConfig)) File.Delete(oldConfig);

        // 3. Sync Gradle + Manifest
        foreach (var fileName in GradleFiles)
        {
            var src = Path.Combine(cfgDir, fileName);
            if (File.Exists(src))
            {
                var dest = Path.Combine(AssetsPlugins, fileName);
                File.Copy(src, dest, true);
                Debug.Log($"[ChannelSwitch] Config: {src} → {dest}");
            }
        }

        // 4. Sync channel Java files to tysdk package
        foreach (var javaFile in Directory.GetFiles(cfgDir, "*.java"))
        {
            var fileName = Path.GetFileName(javaFile);
            var dest = Path.Combine(TysdkPlugins, fileName);
            File.Copy(javaFile, dest, true);
            Debug.Log($"[ChannelSwitch] Java: {javaFile} → {dest}");
        }

        // 5. Sync google-services.json (fallback to GooglePlay default)
        var srcGoogleServices = Path.Combine(cfgDir, "Files/google-services.json");
        if (!File.Exists(srcGoogleServices))
            srcGoogleServices = Path.Combine(ExtraCfgRoot, "googleplay/Files/google-services.json");
        var destGoogleServices = Path.Combine(TysdkFiles, "google-services.json");
        File.Copy(srcGoogleServices, destGoogleServices, true);
        Debug.Log($"[ChannelSwitch] google-services.json: {srcGoogleServices} → {destGoogleServices}");

        // 6. Set Bundle Identifier per channel
        var bundleId = channel switch
        {
            "Flexion" => "com.arkgame.ft.flexion",
            _ => "com.arkgame.ft"
        };
        PlayerSettings.SetApplicationIdentifier(BuildTargetGroup.Android, bundleId);
        Debug.Log($"[CHANNEL-VERIFY] Bundle Identifier → {bundleId}");

        // 7. Set runtime channel
        tysdk.ChannelConfig.SetChannel(channel);

        AssetDatabase.Refresh(ImportAssetOptions.ForceSynchronousImport);
        Debug.Log($"[ChannelSwitch] Done. Channel: {channel}");
    }

    // ==================== Build ====================

    private static void BuildAndroidForChannel(string channel, bool debug)
    {
        SwitchChannel(channel);

        string fileName = debug ? $"tysdkTest_{channel}_debug.apk" : $"tysdkTest_{channel}.apk";
        string outPath = $"../Bin/{fileName}";
        var buildOptions = debug
            ? BuildOptions.Development | BuildOptions.AllowDebugging | BuildOptions.WaitForPlayerConnection
            : BuildOptions.None;

        var buildPlayerOptions = new BuildPlayerOptions
        {
            scenes = EditorBuildSettings.scenes.Select(x => x.path).ToArray(),
            locationPathName = outPath,
            target = BuildTarget.Android,
            options = buildOptions,
        };

        Debug.Log($"[ChannelBuild] Building {channel} → {outPath}");
        var buildReport = BuildPipeline.BuildPlayer(buildPlayerOptions);

        if (buildReport?.summary.result == UnityEditor.Build.Reporting.BuildResult.Succeeded)
        {
            Debug.Log($"[ChannelBuild] Success: {Path.GetFullPath(outPath)}");
            AssetDatabase.Refresh(ImportAssetOptions.ForceSynchronousImport);
        }
        else
        {
            Debug.LogError($"[ChannelBuild] Failed: {buildReport?.summary}");
        }
    }

    private static string currentChannel = "";

    // ==================== Menu: Switch Channel ====================

    [MenuItem("Tools/Switch Channel/GooglePlay")]
    public static void Switch_GooglePlay() => SwitchChannel("GooglePlay");

    [MenuItem("Tools/Switch Channel/Rustore")]
    public static void Switch_Rustore() => SwitchChannel("Rustore");

    [MenuItem("Tools/Switch Channel/Flexion")]
    public static void Switch_Flexion() => SwitchChannel("Flexion");

    // ==================== Menu: Build ====================

    [MenuItem("Tools/Build Android (Current Channel)")]
    public static void Build_CurrentChannel()
    {
        if (string.IsNullOrEmpty(currentChannel))
        {
            Debug.LogError("[ChannelBuild] No channel selected. Use Tools/Switch Channel first.");
            return;
        }
        BuildAndroidForChannel(currentChannel, false);
    }

    [MenuItem("Tools/Build Android (Current Channel) Debug")]
    public static void Build_CurrentChannel_Debug()
    {
        if (string.IsNullOrEmpty(currentChannel))
        {
            Debug.LogError("[ChannelBuild] No channel selected. Use Tools/Switch Channel first.");
            return;
        }
        BuildAndroidForChannel(currentChannel, true);
    }

    [MenuItem("Tools/Build Android (Channel)/GooglePlay")]
    public static void Build_GooglePlay() => BuildAndroidForChannel("GooglePlay", false);

    [MenuItem("Tools/Build Android (Channel)/GooglePlay Debug")]
    public static void Build_GooglePlay_Debug() => BuildAndroidForChannel("GooglePlay", true);

    [MenuItem("Tools/Build Android (Channel)/Rustore")]
    public static void Build_Rustore() => BuildAndroidForChannel("Rustore", false);

    [MenuItem("Tools/Build Android (Channel)/Rustore Debug")]
    public static void Build_Rustore_Debug() => BuildAndroidForChannel("Rustore", true);

    [MenuItem("Tools/Build Android (Channel)/Flexion")]
    public static void Build_Flexion() => BuildAndroidForChannel("Flexion", false);

    [MenuItem("Tools/Build Android (Channel)/Flexion Debug")]
    public static void Build_Flexion_Debug() => BuildAndroidForChannel("Flexion", true);
}