using ModpackUpdater.Manager;
using ModpackUpdater.Model;
using ModpackUpdater.My.Resources;
using Pilz.UI.Telerik;
using System.Diagnostics;
using Telerik.WinControls;
using Telerik.WinControls.UI;

namespace ModpackUpdater;

public partial class Form1
{
    private ModpackInfo modpackInfo = null;
    private ModpackConfig updateConfig = new();
    private bool currentUpdating = false;
    private UpdateCheckResult lastUpdateCheckResult = null;
    private readonly UpdateCheckOptionsAdv updateOptions;

    public Form1(UpdateCheckOptionsAdv updateOptions) : this()
    {
        this.updateOptions = updateOptions;

        if (!string.IsNullOrWhiteSpace(updateOptions.ProfileFolder))
            LoadMinecraftProfile(updateOptions.ProfileFolder);
    }

    public Form1()
    {
        InitializeComponent();

        Text = $"{Text} (v{Application.ProductVersion})";

        RadButton_Install.SvgImage = AppSymbolFactory.Instance.GetSvgImage(AppSymbols.software_installer, SvgImageSize.Small);
        RadButton_CheckForUpdates.SvgImage = AppSymbolFactory.Instance.GetSvgImage(AppSymbols.update_done, SvgImageSize.Small);
        radButton_RefreshConfig.SvgImage = AppSymbolFactory.Instance.GetSvgImage(AppSymbols.refresh, SvgImageSize.Small);
        RadButton_SearchMinecraftProfileFolder.SvgImage = AppSymbolFactory.Instance.GetSvgImage(AppSymbols.opened_folder, SvgImageSize.Small);
        radButton_PasteInstallKey.SvgImage = AppSymbolFactory.Instance.GetSvgImage(AppSymbols.paste, SvgImageSize.Small);
        RadButton_PasteModpackConfig.SvgImage = AppSymbolFactory.Instance.GetSvgImage(AppSymbols.paste, SvgImageSize.Small);
    }

    private bool IsMinecaftProfileLoaded()
    {
        return !string.IsNullOrEmpty(GetMinecraftProfilePath());
    }

    private string GetMinecraftProfilePath()
    {
        return RadTextBoxControl_MinecraftProfileFolder.Text.Trim();
    }

    private bool IsUpdateConfigLoaded()
    {
        return !string.IsNullOrEmpty(GetUpdateconfigPath());
    }

    private string GetUpdateconfigPath()
    {
        return RadTextBoxControl_ModpackConfig.Text.Trim();
    }

    private bool CheckStatus()
    {
        bool CheckStatusRet;

        if (!IsMinecaftProfileLoaded())
        {
            SetStatus(LangRes.StatusText_MinecraftProfileWarning, AppSymbolFactory.Instance.GetSvgImage(AppSymbols.general_warning_sign, SvgImageSize.Small));
            CheckStatusRet = false;
        }
        else if (!IsUpdateConfigLoaded())
        {
            SetStatus(LangRes.StatusText_MinecraftProfileWarning, AppSymbolFactory.Instance.GetSvgImage(AppSymbols.general_warning_sign, SvgImageSize.Small));
            CheckStatusRet = false;
        }
        else
            CheckStatusRet = true;

        return CheckStatusRet;
    }

    private void SetStatus(string statusText, RadSvgImage image)
    {
        RadLabel_Status.Text = statusText;
        RadLabel_Status.SvgImage = image;
    }

    private void ClearStatus()
    {
        RadLabel_Status.Text = "-";
        RadLabel_Status.SvgImage = null;
    }

    private void LoadMinecraftProfile(string folderPath)
    {
        RadTextBoxControl_MinecraftProfileFolder.Text = folderPath;

        if (IsUpdateConfigLoaded())
        {
            try
            {
                modpackInfo = ModpackInfo.TryLoad(folderPath);
                radTextBoxControl_InstallKey.Text = modpackInfo.ExtrasKey;
            }
            catch
            {
                RadTextBoxControl_MinecraftProfileFolder.Text = string.Empty;
            }

            if (string.IsNullOrWhiteSpace(RadTextBoxControl_ModpackConfig.Text) && !string.IsNullOrWhiteSpace(modpackInfo?.ConfigUrl))
                LoadUpdateConfigFile(modpackInfo.ConfigUrl);
            else if (IsUpdateConfigLoaded())
                RadButton_CheckForUpdates.PerformClick();
        }
        else
            ClearStatus();
    }

    private void LoadUpdateConfigFile(string filePath)
    {
        static ModpackConfig loadConfig(string filePath)
        {
            try
            {
                return ModpackConfig.LoadFromUrl(filePath);
            }
            catch (Exception)
            {
            }
            return null;
        }

        RadTextBoxControl_ModpackConfig.Text = filePath;

        if (!string.IsNullOrWhiteSpace(filePath) && loadConfig(filePath) is ModpackConfig modpackConfig)
        {
            if (updateConfig.Maintenance && !updateOptions.IgnoreMaintenance)
                SetStatus(LangRes.StatusText_Maintenance, AppSymbolFactory.Instance.GetSvgImage(AppSymbols.services, SvgImageSize.Small));
            else
                RadButton_CheckForUpdates.PerformClick();
        }
        else
        {
            ClearStatus();
        }
    }

    private async Task ExecuteUpdate(bool doInstall)
    {
        var updater = new ModpackInstaller(updateConfig, modpackInfo);
        updater.InstallProgessUpdated += Update_InstallProgessUpdated;
        updater.CheckingProgressUpdated += Updated_CheckingProgresssUpdated;

        // Check only if not pressed "install", not really needed otherwise.
        if (lastUpdateCheckResult is null || !doInstall)
        {
            SetStatus(LangRes.StatusText_CheckingForUpdates, AppSymbolFactory.Instance.GetSvgImage(AppSymbols.update_done, SvgImageSize.Small));

            // Check for extras once again
            modpackInfo.ExtrasKey = radTextBoxControl_InstallKey.Text.Trim();
            updateOptions.IncludeExtras = AppFeatures.AllowExtras.IsEnabled(new AllowExtrasFeatureContext(modpackInfo, updateConfig));

            try
            {
                lastUpdateCheckResult = await updater.Check(updateOptions);
            }
            catch
            {
                SetStatus(LangRes.StatusText_ErrorWhileUpdateCheckOrUpdate, AppSymbolFactory.Instance.GetSvgImage(AppSymbols.close, SvgImageSize.Small));
            }
            finally
            {
            }
        }

        if (lastUpdateCheckResult is null || lastUpdateCheckResult.HasError)
            SetStatus(LangRes.StatusText_ErrorWhileUpdateCheckOrUpdate, AppSymbolFactory.Instance.GetSvgImage(AppSymbols.close, SvgImageSize.Small));
        else if (lastUpdateCheckResult.HasUpdates)
        {
            if (doInstall)
            {
                SetStatus(LangRes.StatusText_Installing, AppSymbolFactory.Instance.GetSvgImage(AppSymbols.software_installer, SvgImageSize.Small));
                currentUpdating = true;

                try
                {
                    if (await updater.Install(lastUpdateCheckResult) == true)
                    {
                        lastUpdateCheckResult = null; // Reset last update check, a new one would be needed now.
                        SetStatus(LangRes.StatusTest_EverythingOk, AppSymbolFactory.Instance.GetSvgImage(AppSymbols.done, SvgImageSize.Small));
                    }
                    else
                        SetStatus(LangRes.StatusText_ErrorWhileUpdateCheckOrUpdate, AppSymbolFactory.Instance.GetSvgImage(AppSymbols.close, SvgImageSize.Small));
                }
                catch (Exception)
                {
                    SetStatus(LangRes.StatusText_ErrorWhileUpdateCheckOrUpdate, AppSymbolFactory.Instance.GetSvgImage(AppSymbols.close, SvgImageSize.Small));
                    if (Debugger.IsAttached)
                        throw;
                }
                finally
                {
                    currentUpdating = false;
                }
            }
            else
                SetStatus(LangRes.StatusText_UpdateAvailable, AppSymbolFactory.Instance.GetSvgImage(AppSymbols.software_installer, SvgImageSize.Small));
        }
        else
            SetStatus(LangRes.StatusTest_EverythingOk, AppSymbolFactory.Instance.GetSvgImage(AppSymbols.done, SvgImageSize.Small));
    }

    private void Update_InstallProgessUpdated(UpdateCheckResult result, int processedSyncs)
    {
        int actionCount = result.Actions.Count;
        SetStatus(Math.Round(processedSyncs / (double)actionCount * 100d, 1) + "%", AppSymbolFactory.Instance.GetSvgImage(AppSymbols.software_installer, SvgImageSize.Small));
    }

    private void Updated_CheckingProgresssUpdated(int toCheck, int processed)
    {
        SetStatus(Math.Round(processed / (double)toCheck * 100d, 1) + "%", AppSymbolFactory.Instance.GetSvgImage(AppSymbols.update_done, SvgImageSize.Small));
    }

    private void ButtonX_SearchMinecraftProfile_Click(object sender, EventArgs e)
    {
        var ofd = new RadOpenFolderDialog();
        if (ofd.ShowDialog(this) == DialogResult.OK)
            LoadMinecraftProfile(ofd.FileName);
    }

    private void RadButton_PasteModpackConfig_Click(object sender, EventArgs e)
    {
        var text = Clipboard.GetText();
        if (text.StartsWith("http"))
            LoadUpdateConfigFile(text);
    }

    private void RadButton_PasteInstallKey_Click(object sender, EventArgs e)
    {
        if (modpackInfo == null)
            return;
        radTextBoxControl_InstallKey.Text = modpackInfo.ExtrasKey = Clipboard.GetText();
    }

    private void RadButton_RefreshConfig_Click(object sender, EventArgs e)
    {
        LoadUpdateConfigFile(RadTextBoxControl_ModpackConfig.Text);
    }

    private async void ButtonX_CheckForUpdates_Click(object sender, EventArgs e)
    {
        ClearStatus();
        if (CheckStatus())
            await ExecuteUpdate(false);
    }

    private async void ButtonX_StartUpdate_Click(object sender, EventArgs e)
    {
        if (!currentUpdating)
        {
            ClearStatus();
            if (CheckStatus())
                await ExecuteUpdate(true);
        }
    }

    private void Form1_FormClosing(object sender, FormClosingEventArgs e)
    {
        AppConfig.Instance.LastMinecraftProfilePath = RadTextBoxControl_MinecraftProfileFolder.Text;
    }

    private void Form1_Load(object sender, EventArgs e)
    {
        if (Directory.Exists(AppConfig.Instance.LastMinecraftProfilePath))
            LoadMinecraftProfile(AppConfig.Instance.LastMinecraftProfilePath);
    }

    private async void Form1_Shown(object sender, EventArgs e)
    {
        var updater = new AppUpdater();
        if (!updateOptions.NoUpdate && await updater.Check() && RadMessageBox.Show(LangRes.MsgBox_UpdateAvailable, LangRes.MsgBox_UpdateAvailable_Title, MessageBoxButtons.YesNo, RadMessageIcon.Info) == DialogResult.Yes)
        {
            SetStatus(LangRes.StatusText_InstallingAppUpdate, AppSymbolFactory.Instance.GetSvgImage(AppSymbols.software_installer, SvgImageSize.Small));
            Enabled = false;
            await updater.Install();
            Application.Restart();
        }
    }
}