using System.IO;
using AcDream.App.UI.Layout;
using DatReaderWriter;
using DatReaderWriter.Options;

namespace AcDream.App.Tests.UI.Layout;

/// <summary>
/// Batch C (overnight hover/UI round, Map/House toolbar panel) discovery
/// probe. Desk research (docs/research/2026-08-17-map-house-recon.md,
/// itself built on the FA campaign's already-DAT-verified 16-slot
/// <c>gmPanelUI::SetupChildren</c> dump) already resolved host
/// <c>0x2100006E</c> slot <c>0x1000018C</c> / <c>RetailPanelCatalog</c> id
/// <b>16</b> as the Map/House tab host, and toolbar button
/// <c>0x1000019A</c> as the (currently ghosted) button that opens it. This
/// probe RE-CONFIRMS both against the live installed DATs rather than
/// trusting the committed fixture, and additionally reads the facts the
/// decomp explains the MEANING of but not the VALUE of: the tab table, the
/// <c>m_pMap</c> marker-area rect + hotspot template attrs (<c>0x47</c>/
/// <c>0x48</c>), and the House ListBox's authored default content.
///
/// <para>
/// Kept as a permanent env-gated pin (like <c>FaPanelSlotProbeTests</c>) —
/// it documents authored truth for future sessions, not a one-shot
/// throwaway.
/// </para>
/// </summary>
public sealed class MapHousePanelSlotProbeTests
{
    private const uint HostLayoutId = 0x2100006Eu;
    private const uint SlotElementId = 0x1000018Cu;
    private const uint ToolbarLayoutId = 0x21000016u;
    private const uint MapHouseToolbarButtonId = 0x1000019Au;

    // gmMapUI PostInit signature children (pc:171993).
    private const uint MapDateTimeTextId = 0x100001EBu;
    private const uint MapWidgetId = 0x100001ECu;
    private const uint MapPlayerIconId = 0x100001EDu;
    private const uint MapHouseIconId = 0x100001EEu;
    private const uint MapCoordinateTextId = 0x100001EFu;

    // gmHouseUI PostInit signature child (pc:172581).
    private const uint HouseTextBoxId = 0x100001E6u;

    [Fact]
    public void ProbeMapHousePanelSlot()
    {
        if (Environment.GetEnvironmentVariable("ACDREAM_PROBE_LIVE_MOUNT") != "1")
            return;

        var datDir = Environment.GetEnvironmentVariable("ACDREAM_DAT_DIR")
            ?? Path.Combine(
                Environment.GetFolderPath(Environment.SpecialFolder.UserProfile),
                "Documents",
                "Asheron's Call");
        using var dats = new DatCollection(datDir, DatAccessType.Read);

        // 1) The slot itself — panel id, type, tab table.
        ElementInfo? slot = LayoutImporter.ImportInfos(dats, HostLayoutId, SlotElementId);
        if (slot is null)
        {
            Console.WriteLine($"[maphouse] slot 0x{SlotElementId:X8} -> IMPORT NULL");
            return;
        }

        string panelId = slot.TryGetEffectiveProperty(0x10000029u, out var p)
            ? $"{p.UnsignedValue} (kind={p.Kind})"
            : "ABSENT";
        Console.WriteLine(
            $"[maphouse] slot 0x{SlotElementId:X8} panelId={panelId} type={slot.Type} "
            + $"({slot.X},{slot.Y} {slot.Width}x{slot.Height}) children={slot.Children.Count} "
            + $"tabTableCount={slot.TabTable.Count}");
        foreach (var tab in slot.TabTable)
            Console.WriteLine(
                $"[maphouse]     tab button=0x{tab.ButtonElementId:X8} page=0x{tab.PageElementId:X8} "
                + $"default={tab.IsDefault}");

        bool hasMapSignature = FindInfo(slot, MapDateTimeTextId) || FindInfo(slot, MapWidgetId);
        bool hasHouseSignature = FindInfo(slot, HouseTextBoxId);
        Console.WriteLine(
            $"[maphouse] hasMapSignature={hasMapSignature} hasHouseSignature={hasHouseSignature}");

        // Two levels of children so we can see the tab pages' own shape even
        // if the recovered signature ids above are absent from this install.
        foreach (ElementInfo c in slot.Children)
        {
            Console.WriteLine(
                $"[maphouse]     child 0x{c.Id:X8} type={c.Type} ({c.X},{c.Y} {c.Width}x{c.Height}) "
                + $"kids={c.Children.Count}");
            foreach (ElementInfo g in c.Children)
                Console.WriteLine(
                    $"[maphouse]         g 0x{g.Id:X8} type={g.Type} ({g.X},{g.Y} {g.Width}x{g.Height}) "
                    + $"kids={g.Children.Count}");
        }

        // 2) The toolbar button that should open panel 16.
        ElementInfo? button = LayoutImporter.ImportInfos(dats, ToolbarLayoutId, MapHouseToolbarButtonId);
        string buttonPanelId = button is not null && button.TryGetEffectiveProperty(0x10000029u, out var bp)
            ? $"{bp.UnsignedValue} (kind={bp.Kind})"
            : "ABSENT/NULL";
        Console.WriteLine($"[maphouse] toolbar button 0x{MapHouseToolbarButtonId:X8} panelId={buttonPanelId}");

        // 3) m_pMap's own marker-area rect + hotspot template attrs.
        ElementInfo? map = FindDescendant(slot, MapWidgetId);
        if (map is null)
        {
            Console.WriteLine($"[maphouse] m_pMap 0x{MapWidgetId:X8} NOT FOUND under slot");
        }
        else
        {
            string x0 = map.TryGetEffectiveProperty(0x1000004Eu, out var vx0) ? vx0.IntegerValue.ToString() : "ABSENT";
            string x1 = map.TryGetEffectiveProperty(0x1000004Fu, out var vx1) ? vx1.IntegerValue.ToString() : "ABSENT";
            string y0 = map.TryGetEffectiveProperty(0x10000050u, out var vy0) ? vy0.IntegerValue.ToString() : "ABSENT";
            string y1 = map.TryGetEffectiveProperty(0x10000051u, out var vy1) ? vy1.IntegerValue.ToString() : "ABSENT";
            bool hasTemplateElement = map.TryGetEffectiveProperty(0x47u, out var te);
            bool hasTemplateLayoutDid = map.TryGetEffectiveProperty(0x48u, out var tl);
            string templateElement = hasTemplateElement
                ? $"0x{te.UnsignedValue:X8} (kind={te.Kind})" : "ABSENT";
            string templateLayoutDid = hasTemplateLayoutDid
                ? $"0x{tl.UnsignedValue:X8} (kind={tl.Kind})" : "ABSENT";
            Console.WriteLine(
                $"[maphouse] m_pMap 0x{MapWidgetId:X8} markerArea=({x0},{y0})-({x1},{y1}) "
                + $"templateElement(attr 0x47)={templateElement} templateLayoutDid(attr 0x48)={templateLayoutDid} "
                + $"type={map.Type} children={map.Children.Count}");

            // If both resolved, try importing the actual hotspot template so we
            // know what widget class AddMapNote instantiates per town.
            if (hasTemplateElement && hasTemplateLayoutDid && tl.UnsignedValue != 0)
            {
                ElementInfo? template = LayoutImporter.ImportInfos(dats, (uint)tl.UnsignedValue, (uint)te.UnsignedValue);
                Console.WriteLine(template is null
                    ? "[maphouse] hotspot template IMPORT NULL"
                    : $"[maphouse] hotspot template type={template.Type} "
                      + $"({template.Width}x{template.Height}) states={template.States.Count} "
                      + $"stateMedia={template.StateMedia.Count}");
            }
        }

        ElementInfo? playerIcon = FindDescendant(slot, MapPlayerIconId);
        ElementInfo? houseIcon = FindDescendant(slot, MapHouseIconId);
        Console.WriteLine(
            $"[maphouse] playerIcon found={playerIcon is not null} type={playerIcon?.Type} "
            + $"stateMedia={playerIcon?.StateMedia.Count}");
        Console.WriteLine(
            $"[maphouse] houseIcon found={houseIcon is not null} type={houseIcon?.Type} "
            + $"stateMedia={houseIcon?.StateMedia.Count}");

        // 4) House ListBox default content — dump its own children/text so we
        // know whether "You do not currently own a house..." is authored
        // directly in the layout or synthesized at runtime.
        ElementInfo? houseBox = FindDescendant(slot, HouseTextBoxId);
        if (houseBox is null)
        {
            Console.WriteLine($"[maphouse] house listbox 0x{HouseTextBoxId:X8} NOT FOUND under slot");
        }
        else
        {
            Console.WriteLine(
                $"[maphouse] house listbox 0x{HouseTextBoxId:X8} type={houseBox.Type} "
                + $"children={houseBox.Children.Count} templateListCount={houseBox.TemplateList.Count} "
                + $"scrollbar=0x{houseBox.ScrollbarElementId:X8}");
            foreach (var t in houseBox.TemplateList)
            {
                Console.WriteLine(
                    $"[maphouse]     template layoutId=0x{t.TemplateLayoutId:X8} elementId=0x{t.TemplateElementId:X8}");
                ElementInfo? rowTemplate = LayoutImporter.ImportInfos(dats, t.TemplateLayoutId, t.TemplateElementId);
                if (rowTemplate is null)
                {
                    Console.WriteLine("[maphouse]         row template IMPORT NULL");
                    continue;
                }
                Console.WriteLine(
                    $"[maphouse]         row template type={rowTemplate.Type} "
                    + $"({rowTemplate.Width}x{rowTemplate.Height}) kids={rowTemplate.Children.Count}");
                foreach (ElementInfo rc in rowTemplate.Children)
                    Console.WriteLine(
                        $"[maphouse]             rc 0x{rc.Id:X8} type={rc.Type} ({rc.X},{rc.Y} {rc.Width}x{rc.Height})");
            }
            foreach (ElementInfo row in houseBox.Children)
            {
                string caption = row.TryGetEffectiveProperty(0x17u, out var cap)
                    ? $"StringInfo(table={cap.StringInfoValue.TableId:X},id={cap.StringInfoValue.StringId:X},lit={cap.StringInfoValue.English != 0})"
                    : "NO 0x17";
                Console.WriteLine(
                    $"[maphouse]     row 0x{row.Id:X8} type={row.Type} caption={caption} kids={row.Children.Count}");
                foreach (ElementInfo g in row.Children)
                {
                    string gcaption = g.TryGetEffectiveProperty(0x17u, out var gcap)
                        ? $"StringInfo(table={gcap.StringInfoValue.TableId:X},id={gcap.StringInfoValue.StringId:X})"
                        : "NO 0x17";
                    Console.WriteLine($"[maphouse]         g 0x{g.Id:X8} type={g.Type} caption={gcaption}");
                }
            }
        }
    }

    private static bool FindInfo(ElementInfo info, uint id)
    {
        if (info.Id == id) return true;
        foreach (ElementInfo c in info.Children)
            if (FindInfo(c, id)) return true;
        return false;
    }

    private static ElementInfo? FindDescendant(ElementInfo info, uint id)
    {
        if (info.Id == id) return info;
        foreach (ElementInfo c in info.Children)
        {
            ElementInfo? found = FindDescendant(c, id);
            if (found is not null) return found;
        }
        return null;
    }
}