using Microsoft.Extensions.Primitives;
using ModpackUpdater.Apps.Manager.Api.Model;
using ModpackUpdater.Apps.Manager.Ui;
using ModpackUpdater.Manager;
using Pilz.UI.Extensions;
using System.Text;
using Telerik.WinControls.UI;

namespace ModpackUpdater.Apps.Manager.Features;

internal static class SharedFunctions
{
    public static bool CheckActionHealthy(IMainApi api, params GridViewRowInfo[] selectedRows)
    {
        if (api.MainWindow is not MainForm mainForm
            || mainForm.Controls.Find("radGridView_Actions", true).FirstOrDefault() is not RadGridView gridView
            || mainForm.Controls.Find("radWaitingBar_Actions", true).FirstOrDefault() is not RadWaitingBar rwb)
            return false;

        rwb.StartWaiting();
        rwb.ShowText = true;
        var rowsCount = selectedRows.Length;
        rwb.Text = "0 / " + rowsCount;
        gridView.BeginUpdate();

        var failed = false;
        var msg = default(string);
        var factory = new ModpackFactory();

        var rows = new Dictionary<GridViewRowInfo, InstallAction>();
        for (var i = 0; i < selectedRows.Length; i++)
        {
            var row = selectedRows[i];

            if (row.Tag is InstallAction action)
            {
                Task.Run(async () =>
                {
                    try
                    {
                        var result = await factory.ResolveSourceUrl(action);
                        failed = string.IsNullOrWhiteSpace(result);
                    }
                    catch (Exception ex)
                    {
                        msg = ex.Message;
                    }
                }).Wait();
            }

            foreach (var c in row.Cells)
            {
                c.Style.CustomizeFill = true;
                c.Style.BackColor = failed ? Color.IndianRed : Color.ForestGreen;
            }

            rwb.Text = $"{i} / {rowsCount}";

            Application.DoEvents();
        }

        gridView.EndUpdate();
        rwb.ShowText = false;
        rwb.StopWaiting();

        if (rowsCount == 1 && failed && !string.IsNullOrWhiteSpace(msg))
            MessageBox.Show(msg);

        return true;
    }

    public static bool CollectUpdates(IMainApi api, params InstallAction[] actions)
    {
        if (api.CurWorkspace?.UpdateInfos is null)
            return false;

        // Collect updates
        var ucDialog = new UpdatesCollectorUi(api.CurWorkspace, actions);
        if (!ucDialog.ShowDialog(api.MainWindow).IsOk() || ucDialog.CurrentUpdates is null)
            return false;

        // Collect versions with changes
        var updates = new List<UpdatesCollectorUi.ModUpdateInfo>();
        foreach (var update in ucDialog.CurrentUpdates.List)
        {
            if (update.Origin.SourceTag != update.AvailableVersions[update.NewVersion].Value)
                updates.Add(update);
        }

        // Path install actions
        foreach (var update in updates)
        {
            update.Origin.SourceTag = update.AvailableVersions[update.NewVersion].Value;
            api.UpdateItem(update.Origin);
        }

        // Create update actions
        var updateSet = new UpdateInfo();
        foreach (var update in updates)
        {
            updateSet.Actions.Add(new()
            {
                InheritFrom = update.Origin.Id,
            });
        }
        api.CurWorkspace.UpdateInfos.Updates.Insert(0, updateSet);
        api.UpdateItem(updateSet);

        return true;
    }

    public static void FindNewDirectLinks(IMainApi api, params InstallAction[] actions)
    {
        var mainForm = api.MainWindow as MainForm;
        var gridView = mainForm?.Controls.Find("radGridView_Actions", true).FirstOrDefault() as RadGridView;
        var rwb = mainForm?.Controls.Find("radWaitingBar_Actions", true).FirstOrDefault() as RadWaitingBar;
        var factory = new ModpackFactory();

        rwb?.StartWaiting();
        gridView?.BeginUpdate();

        foreach (var action in actions)
        {
            if (action.SourceType != SourceType.DirectLink)
            {
                try
                {
                    Task.Run(async () =>
                    {
                        action.SourceUrl = await factory.ResolveSourceUrl(action);
                    }).Wait();
                }
                catch (Exception)
                {
                    // Fail silently
                }
                api.UpdateItem(action);
            }
        }

        gridView?.EndUpdate();
        rwb?.StopWaiting();
    }

    public static void ClearDirectLinks(IMainApi api, params InstallAction[] actions)
    {
        var mainForm = api.MainWindow as MainForm;
        var gridView = mainForm?.Controls.Find("radGridView_Actions", true).FirstOrDefault() as RadGridView;
        var rwb = mainForm?.Controls.Find("radWaitingBar_Actions", true).FirstOrDefault() as RadWaitingBar;

        rwb?.StartWaiting();
        gridView?.BeginUpdate();

        foreach (var action in actions)
        {
            if (action.SourceType != SourceType.DirectLink)
            {
                action.SourceUrl = null;
                api.UpdateItem(action);
            }
        }

        gridView?.EndUpdate();
        rwb?.StopWaiting();
    }

    public static string GenerateChangelog(InstallInfos installInfos, UpdateInfo updateInfos)
    {
        var log = new StringBuilder();

        foreach (var action in updateInfos.Actions.OrderBy(n => n.Type))
        {
            // Create copy
            var copy = new UpdateAction();
            ModpackInstaller.DuplicateTo(action, copy);

            // Resolve inherit
            if (!string.IsNullOrWhiteSpace(copy.InheritFrom))
                ModpackInstaller.ResolveInherit(copy, installInfos);

            if (string.IsNullOrWhiteSpace(copy.Name) || copy.Type != UpdateActionType.Update)
                continue;

            // Append bullet
            log.Append('-');

            // Append action indicator
            log.Append(' ');
            log.Append("⚒️");

            // Append name
            log.Append(' ');
            log.Append("**");
            log.Append(copy.Name);
            log.Append("**");

            // Append new version
            if (!string.IsNullOrWhiteSpace(copy.SourceTag))
            {
                log.Append(' ');
                log.Append('`');
                log.Append(copy.SourceTag);
                log.Append('`');
            }

            // Append new line
            log.AppendLine();
        }

        return log.ToString().TrimEnd();
    }
}