using ChatTwo.Code;
using ChatTwo.Resources;
using ChatTwo.Util;
using Dalamud.Interface;
using Dalamud.Interface.Utility.Raii;
using ImGuiNET;

namespace ChatTwo.Ui.SettingsTabs;

internal sealed class Tabs : ISettingsTab
{
    private Plugin Plugin { get; }
    private Configuration Mutable { get; }

    public string Name => Language.Options_Tabs_Tab + "###tabs-tabs";

    private int _toOpen = -2;

    internal Tabs(Plugin plugin, Configuration mutable)
    {
        Plugin = plugin;
        Mutable = mutable;
    }

    public void Draw(bool changed)
    {
        const string addTabPopup = "add-tab-popup";

        if (ImGuiUtil.IconButton(FontAwesomeIcon.Plus, tooltip: Language.Options_Tabs_Add))
            ImGui.OpenPopup(addTabPopup);

        using (var popup = ImRaii.Popup(addTabPopup))
        {
            if (popup)
            {
                if (ImGui.Selectable(Language.Options_Tabs_NewTab))
                    Mutable.Tabs.Add(new Tab());

                ImGui.Separator();

                if (ImGui.Selectable(string.Format(Language.Options_Tabs_Preset, Language.Tabs_Presets_General)))
                    Mutable.Tabs.Add(TabsUtil.VanillaGeneral);

                if (ImGui.Selectable(string.Format(Language.Options_Tabs_Preset, Language.Tabs_Presets_Event)))
                    Mutable.Tabs.Add(TabsUtil.VanillaEvent);
            }
        }

        var toRemove = -1;
        var doOpens = _toOpen > -2;
        for (var i = 0; i < Mutable.Tabs.Count; i++)
        {
            var tab = Mutable.Tabs[i];

            if (doOpens)
                ImGui.SetNextItemOpen(i == _toOpen);

            using var treeNode = ImRaii.TreeNode($"{tab.Name}###tab-{i}");
            if (!treeNode.Success)
                continue;

            using var pushedId = ImRaii.PushId($"tab-{i}");

            if (ImGuiUtil.IconButton(FontAwesomeIcon.TrashAlt, tooltip: Language.Options_Tabs_Delete))
            {
                toRemove = i;
                _toOpen = -1;
            }

            ImGui.SameLine();

            if (ImGuiUtil.IconButton(FontAwesomeIcon.ArrowUp, tooltip: Language.Options_Tabs_MoveUp) && i > 0)
            {
                (Mutable.Tabs[i - 1], Mutable.Tabs[i]) = (Mutable.Tabs[i], Mutable.Tabs[i - 1]);
                _toOpen = i - 1;
            }

            ImGui.SameLine();

            if (ImGuiUtil.IconButton(FontAwesomeIcon.ArrowDown, tooltip: Language.Options_Tabs_MoveDown) && i < Mutable.Tabs.Count - 1)
            {
                (Mutable.Tabs[i + 1], Mutable.Tabs[i]) = (Mutable.Tabs[i], Mutable.Tabs[i + 1]);
                _toOpen = i + 1;
            }

            ImGui.InputText(Language.Options_Tabs_Name, ref tab.Name, 512, ImGuiInputTextFlags.EnterReturnsTrue);
            ImGui.Checkbox(Language.Options_Tabs_ShowTimestamps, ref tab.DisplayTimestamp);
            ImGui.Checkbox(Language.Options_Tabs_PopOut, ref tab.PopOut);
            if (tab.PopOut)
            {
                ImGui.Checkbox(Language.Options_Tabs_IndependentOpacity, ref tab.IndependentOpacity);
                if (tab.IndependentOpacity)
                    ImGuiUtil.DragFloatVertical(Language.Options_Tabs_Opacity, ref tab.Opacity, 0.25f, 0f, 100f, $"{tab.Opacity:N2}%%", ImGuiSliderFlags.AlwaysClamp);
            }

            using (var combo = ImGuiUtil.BeginComboVertical(Language.Options_Tabs_UnreadMode, tab.UnreadMode.Name()))
            {
                if (combo)
                {
                    foreach (var mode in Enum.GetValues<UnreadMode>())
                    {
                        if (ImGui.Selectable(mode.Name(), tab.UnreadMode == mode))
                            tab.UnreadMode = mode;

                        if (mode.Tooltip() is { } tooltip && ImGui.IsItemHovered())
                            ImGui.SetTooltip(tooltip);
                    }
                }
            }

            var input = tab.Channel?.ToChatType().Name() ?? Language.Options_Tabs_NoInputChannel;
            using (var combo = ImGuiUtil.BeginComboVertical(Language.Options_Tabs_InputChannel, input))
            {
                if (combo)
                {
                    if (ImGui.Selectable(Language.Options_Tabs_NoInputChannel, tab.Channel == null))
                        tab.Channel = null;

                    foreach (var channel in Enum.GetValues<InputChannel>())
                        if (ImGui.Selectable(channel.ToChatType().Name(), tab.Channel == channel))
                            tab.Channel = channel;
                }
            }

            using (var channelNode = ImRaii.TreeNode(Language.Options_Tabs_Channels))
            {
                if (channelNode)
                {
                    foreach (var (header, types) in ChatTypeExt.SortOrder)
                    {
                        using var headerNode = ImRaii.TreeNode(header + $"##{i}");
                        if (!headerNode.Success)
                            continue;

                        foreach (var type in types)
                        {
                            if (type.IsGm())
                                continue;

                            var enabled = tab.ChatCodes.ContainsKey(type);
                            if (ImGui.Checkbox($"##{type.Name()}-{i}", ref enabled))
                            {
                                if (enabled)
                                    tab.ChatCodes[type] = ChatSourceExt.All;
                                else
                                    tab.ChatCodes.Remove(type);
                            }

                            ImGui.SameLine();

                            if (!type.HasSource())
                            {
                                ImGui.TextUnformatted(type.Name());
                                continue;
                            }

                            using var typeNode = ImRaii.TreeNode($"{type.Name()}##{i}");
                            if (!typeNode.Success)
                                continue;

                            tab.ChatCodes.TryGetValue(type, out var sourcesEnum);
                            var sources = (uint) sourcesEnum;

                            foreach (var source in Enum.GetValues<ChatSource>())
                                if (ImGui.CheckboxFlags(source.Name(), ref sources, (uint) source))
                                    tab.ChatCodes[type] = (ChatSource) sources;
                        }
                    }
                }
            }


            if (Plugin.ExtraChat.ChannelNames.Count <= 0)
                continue;

            using var extraTree = ImRaii.TreeNode(Language.Options_Tabs_ExtraChatChannels);
            if (!extraTree.Success)
                continue;

            ImGui.Checkbox(Language.Options_Tabs_ExtraChatAll, ref tab.ExtraChatAll);
            ImGui.Separator();

            if (tab.ExtraChatAll)
                ImGui.BeginDisabled();

            foreach (var (id, name) in Plugin.ExtraChat.ChannelNames)
            {
                var enabled = tab.ExtraChatChannels.Contains(id);
                if (!ImGui.Checkbox($"{name}##ec-{id}", ref enabled))
                    continue;

                if (enabled)
                    tab.ExtraChatChannels.Add(id);
                else
                    tab.ExtraChatChannels.Remove(id);
            }

            if (tab.ExtraChatAll)
                ImGui.EndDisabled();
        }

        if (toRemove > -1)
            Mutable.Tabs.RemoveAt(toRemove);

        if (doOpens)
            _toOpen = -2;
    }
}