using System;
using Dalamud.Game.ClientState.Keys;
using ImGuiNET;

namespace NominaOcculta {
    internal class PluginUi : IDisposable {
        private Plugin Plugin { get; }

        internal bool Visible;
        private bool _debug;

        internal PluginUi(Plugin plugin) {
            this.Plugin = plugin;

            this.Plugin.Interface.UiBuilder.Draw += this.Draw;
            this.Plugin.Interface.UiBuilder.OpenConfigUi += this.OpenConfig;
        }

        public void Dispose() {
            this.Plugin.Interface.UiBuilder.OpenConfigUi -= this.OpenConfig;
            this.Plugin.Interface.UiBuilder.Draw -= this.Draw;
        }

        private void OpenConfig() {
            this.Visible = true;
        }

        private void Draw() {
            if (!this.Visible) {
                return;
            }

            if (!ImGui.Begin(this.Plugin.Name, ref this.Visible)) {
                ImGui.End();
                return;
            }

            var anyChanged = ImGui.Checkbox("Enabled", ref this.Plugin.Config.Enabled);
            ImGui.Separator();
            anyChanged |= ImGui.Checkbox("Obscure self (full name)", ref this.Plugin.Config.SelfFull);
            ImGui.TreePush();
            anyChanged |= ImGui.Checkbox("First name", ref this.Plugin.Config.SelfFirst);
            anyChanged |= ImGui.Checkbox("Last name", ref this.Plugin.Config.SelfLast);
            ImGui.TreePop();
            anyChanged |= ImGui.Checkbox("Obscure party members", ref this.Plugin.Config.Party);
            anyChanged |= ImGui.Checkbox("Obscure others", ref this.Plugin.Config.Others);
            anyChanged |= ImGui.Checkbox("Exclude friends", ref this.Plugin.Config.ExcludeFriends);

            if (anyChanged) {
                this.Plugin.SaveConfig();
            }

            ImGui.Separator();

            if (ImGui.Button("Reset names")) {
                if (this.Plugin.KeyState[VirtualKey.CONTROL] && this.Plugin.KeyState[VirtualKey.SHIFT]) {
                    this._debug ^= true;
                } else {
                    this.Plugin.NameRepository.Reset();
                }
            }

            if (this._debug) {
                if (ImGui.CollapsingHeader("Debug")) {
                    ImGui.PushID("debug");
                    try {
                        this.DrawDebug();
                    } finally {
                        ImGui.PopID();
                    }
                }
            }

            ImGui.End();
        }

        private void DrawDebug() {
            ImGui.TextUnformatted($"Initialised: {this.Plugin.NameRepository.Initialised}");

            ImGui.Separator();

            if (ImGui.TreeNode("Name queue")) {
                foreach (var (info, queue) in this.Plugin.NameRepository.ReadOnlyNames) {
                    if (ImGui.CollapsingHeader($"{info}")) {
                        if (ImGui.BeginTable($"{info} table", 2)) {
                            foreach (var name in queue) {
                                ImGui.TableNextColumn();
                                ImGui.TextUnformatted(name);
                            }

                            ImGui.EndTable();
                        }
                    }
                }

                ImGui.TreePop();
            }

            if (ImGui.TreeNode("Replacements")) {
                if (ImGui.BeginTable("replacements", 2)) {
                    foreach (var (name, replacement) in this.Plugin.NameRepository.ReadonlyReplacements) {
                        ImGui.TableNextColumn();
                        ImGui.TextUnformatted(name);

                        ImGui.TableNextColumn();
                        ImGui.TextUnformatted(replacement);
                    }

                    ImGui.EndTable();
                }

                ImGui.TreePop();
            }

            if (ImGui.TreeNode("Last seen info")) {
                if (ImGui.BeginTable("last seen info", 2)) {
                    foreach (var (name, info) in this.Plugin.NameRepository.ReadOnlyLastSeenInfo) {
                        ImGui.TableNextColumn();
                        ImGui.TextUnformatted(name);

                        ImGui.TableNextColumn();
                        ImGui.TextUnformatted($"{info}");
                    }

                    ImGui.EndTable();
                }
            }

            ImGui.TreePop();
        }
    }
}