OrangeGuidanceTomestone/client/PluginUi.cs

using System.Text;
using ImGuiNET;

namespace OrangeGuidanceTomestone;

public class PluginUi : IDisposable {
    private Plugin Plugin { get; }

    private int _pack;

    private int _part1 = -1;
    private (int, int) _word1 = (-1, -1);

    private int _part2 = -1;
    private (int, int) _word2 = (-1, -1);

    private int _conj = -1;

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

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

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

    private void Draw() {
        if (!ImGui.Begin("Orange Guidance Tomestone")) {
            ImGui.End();
            return;
        }

        var packPrev = Pack.All.Value[this._pack].Name;
        if (ImGui.BeginCombo("Pack", packPrev)) {
            for (var i = 0; i < Pack.All.Value.Length; i++) {
                var selPack = Pack.All.Value[i];
                if (!ImGui.Selectable(selPack.Name)) {
                    continue;
                }

                this._pack = i;

                this._part1 = -1;
                this._word1 = (-1, -1);
                this._conj = -1;
                this._part2 = -1;
                this._word2 = (-1, -1);
            }

            ImGui.EndCombo();
        }

        const string placeholder = "****";

        void DrawPicker(string id, IReadOnlyList<string> items, ref int x) {
            var preview = x == -1 ? "" : items[x].Replace("{0}", placeholder);
            if (!ImGui.BeginCombo(id, preview)) {
                return;
            }

            if (ImGui.Selectable("<none>")) {
                x = -1;
            }

            for (var i = 0; i < items.Count; i++) {
                var template = items[i].Replace("{0}", placeholder);
                if (ImGui.Selectable(template, i == x)) {
                    x = i;
                }
            }

            ImGui.EndCombo();
        }

        void DrawWordPicker(string id, IReadOnlyList<WordList> words, ref (int, int) x) {
            var preview = x == (-1, -1) ? "" : words[x.Item1].Words[x.Item2];
            if (!ImGui.BeginCombo(id, preview)) {
                return;
            }

            for (var listIdx = 0; listIdx < words.Count; listIdx++) {
                var list = words[listIdx];
                if (!ImGui.BeginMenu(list.Name)) {
                    continue;
                }

                for (var wordIdx = 0; wordIdx < list.Words.Length; wordIdx++) {
                    if (ImGui.MenuItem(list.Words[wordIdx])) {
                        x = (listIdx, wordIdx);
                    }
                }

                ImGui.EndMenu();
            }

            ImGui.EndCombo();
        }

        var pack = Pack.All.Value[this._pack];

        if (this._part1 == -1) {
            ImGui.TextUnformatted(placeholder);
        } else {
            var preview = new StringBuilder();

            var template1 = pack.Templates[this._part1];
            var word1 = this._word1 == (-1, -1) ? placeholder : pack.Words[this._word1.Item1].Words[this._word1.Item2];
            preview.Append(string.Format(template1, word1));

            if (this._conj != -1) {
                var conj = pack.Conjunctions[this._conj];
                if (conj.Length != 1 || !char.IsPunctuation(conj[0])) {
                    preview.Append('\n');
                }

                preview.Append(conj);
                preview.Append(' ');

                if (this._part2 != -1) {
                    var template2 = pack.Templates[this._part2];
                    var word2 = this._word2 == (-1, -1) ? placeholder : pack.Words[this._word2.Item1].Words[this._word2.Item2];
                    preview.Append(string.Format(template2, word2));
                }
            }

            ImGui.TextUnformatted(preview.ToString());
        }

        ImGui.Separator();

        DrawPicker("Template##part-1", pack.Templates, ref this._part1);
        if (this._part1 > -1 && pack.Templates[this._part1].Contains("{0}")) {
            DrawWordPicker("Word##word-1", pack.Words, ref this._word1);
        }

        DrawPicker("Conjunction##conj", pack.Conjunctions, ref this._conj);

        if (this._conj != -1) {
            DrawPicker("Template##part-2", pack.Templates, ref this._part2);
            if (this._part2 > -1 && pack.Templates[this._part2].Contains("{0}")) {
                DrawWordPicker("Word##word-2", pack.Words, ref this._word2);
            }
        }

        this.ClearIfNecessary();

        var valid = this.ValidSetup();
        if (valid) {
            ImGui.BeginDisabled();
        }

        if (ImGui.Button("Write") && valid) {
        }

        if (valid) {
            ImGui.EndDisabled();
        }

        ImGui.End();
    }

    private void ClearIfNecessary() {
        if (this._pack == -1) {
            this._part1 = -1;
        }

        var pack = Pack.All.Value[this._pack];

        if (this._part1 == -1 || !pack.Templates[this._part1].Contains("{0}")) {
            this._word1 = (-1, -1);
        }

        if (this._conj == -1) {
            this._part2 = -1;
        }

        if (this._part2 == -1 || !pack.Templates[this._part2].Contains("{0}")) {
            this._word2 = (-1, -1);
        }
    }

    private bool ValidSetup() {
        if (this._pack == -1 || this._part1 == -1) {
            return false;
        }

        var pack = Pack.All.Value[this._pack];
        var template1 = pack.Templates[this._part1];
        var temp1Variable = template1.Contains("{0}");

        switch (temp1Variable) {
            case true when this._word1 == (-1, -1):
            case false when this._word1 != (-1, -1):
                return false;
        }

        if (this._conj == -1 && (this._part2 != -1 || this._word2 != (-1, -1))) {
            return false;
        }

        if (this._conj != -1) {
            if (this._part2 == -1) {
                return false;
            }

            var template2 = pack.Templates[this._part2];
            var temp2Variable = template2.Contains("{0}");

            switch (temp2Variable) {
                case true when this._word2 == (-1, -1):
                case false when this._word2 != (-1, -1):
                    return false;
            }
        }

        return true;
    }
}