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

namespace AcDream.App.Tests.UI.Layout;

/// <summary>
/// TEMPORARY gate-failure probe (Campaign OP connected gate, 2026-08-11):
/// the user's first connected gate found Character/Chat/Config tabs BLANK
/// and six of seven Gameplay buttons dead, while every fixture-driven
/// conformance test passes — the structural-false-negative class the OP2
/// blast review named. This probe runs the PRODUCTION mount path (live
/// DATs, the host-slot import the composition uses) and dumps what each
/// page controller actually resolves. Env-gated like the fixture
/// generator so CI/dat-less runs skip it.
/// </summary>
public sealed class OptionsPanelLiveMountProbeTests
{
    [Fact]
    public void ProbeLiveMountShapes()
    {
        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);

        // The production mount: host 0x2100006E slot 0x1000018D (the shape
        // OptionsPanelController documents; RetailUiRuntime.MountOptionsPanel
        // resolves the SAME way — keep in sync with it).
        ElementInfo root = LayoutImporter.ImportInfos(dats, 0x2100006Eu, 0x1000018Du);
        ImportedLayout layout = LayoutImporter.Build(root, _ => (0u, 0, 0), null);

        Console.WriteLine($"[probe] root id=0x{root.Id:X8} type={root.Type} children={root.Children.Count}");
        DumpTree(root, 0, maxDepth: 3);

        // What does the flat index hold for the load-bearing ids?
        foreach (uint id in new[]
        {
            0x10000208u, // tab control
            0x10000212u, 0x10000211u, 0x1000050Cu, 0x10000213u, // page slots
            0x100001FAu, // Character ListBox
            0x1000050Du, // Chat ListBox
            0x10000200u, // Config ListBox
            0x10000203u, 0x10000617u, 0x100005CCu, // gameplay buttons: exit-char-sel, exit game, mouse turning
            0x10000206u, 0x10000207u, // UA / RA
        })
        {
            UiElement? el = layout.FindElement(id);
            Console.WriteLine($"[probe] flat 0x{id:X8} -> {(el is null ? "MISSING" : el.GetType().Name)}");
        }

        // The tab panel + its authored table, as production sees it.
        if (layout.FindElement(0x10000208u) is UiTabPanel tabs)
        {
            Console.WriteLine($"[probe] tab table entries={tabs.Tabs.Count}");
            foreach (UiTabTableEntry t in tabs.Tabs)
                Console.WriteLine($"[probe]   button=0x{t.ButtonElementId:X8} page=0x{t.PageElementId:X8} default={t.IsDefault}");
        }

        // Scoped lookups per page slot — what each page controller's Bind does.
        foreach ((uint slot, uint listBox, string name) in new[]
        {
            (0x10000211u, 0x100001FAu, "Character"),
            (0x1000050Cu, 0x1000050Du, "Chat"),
            (0x10000213u, 0x10000200u, "Config"),
        })
        {
            UiElement? slotEl = layout.FindElement(slot);
            if (slotEl is null)
            {
                Console.WriteLine($"[probe] {name}: SLOT 0x{slot:X8} MISSING from flat index");
                continue;
            }
            UiElement? scoped = UiElement.FindDescendant(slotEl, listBox);
            Console.WriteLine(
                $"[probe] {name}: slot=0x{slot:X8}({slotEl.GetType().Name}, children={slotEl.Children.Count}) "
                + $"scoped-listbox 0x{listBox:X8} -> {(scoped is null ? "MISSING" : scoped.GetType().Name)}");
            if (scoped is UiTemplateListBox tlb)
                Console.WriteLine($"[probe]   templates={tlb.Templates.Count} scrollbarId=0x{tlb.ScrollbarElementId:X8}");
        }
    }

    /// <summary>#372 minor half: the 13 ID_ChatOption_TextFilter_* labels fail
    /// to resolve in table 0x23000003 — sweep the plausible tables and key
    /// spellings against the live DAT to find their real home.</summary>
    [Fact]
    public void ProbeFilterLabelHome()
    {
        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);
        var strings = new DatStringResolver(dats);

        string[] keys =
        {
            "ID_ChatOption_TextFilter_Combat",
            "ID_ChatOption_TextFilter_Gameplay",
            "ID_ChatOptions_TextFilter_Combat",   // plural-Options variant
            "ID_Chat_TextFilter_Combat",
            "ID_TextFilter_Combat",
            "TextFilter_Combat",
        };
        for (uint table = 0x23000001u; table <= 0x2300000Au; table++)
        {
            foreach (string key in keys)
            {
                string? hit = strings.Resolve(table, DatStringResolver.ComputeHash(key));
                if (hit is not null)
                    Console.WriteLine($"[probe] table 0x{table:X8} key '{key}' -> '{hit}'");
            }
        }
        // Also: does the KNOWN-good Character-tab key family resolve where
        // documented, as a control?
        Console.WriteLine(
            "[probe] control ID_PlayerOption_AutoTarget in 0x23000003 -> "
            + $"'{strings.Resolve(0x23000003u, DatStringResolver.ComputeHash("ID_PlayerOption_AutoTarget"))}'");

        // Exhaustive: sweep EVERY string table in the local dat for the key.
        uint targetHash = DatStringResolver.ComputeHash("ID_ChatOption_TextFilter_Combat");
        foreach (uint tableId in dats.Local.GetAllIdsOfType<DatReaderWriter.DBObjs.StringTable>())
        {
            string? hit = strings.Resolve(tableId, targetHash);
            if (hit is not null)
                Console.WriteLine($"[probe] EXHAUSTIVE hit: table 0x{tableId:X8} -> '{hit}'");
        }
        Console.WriteLine("[probe] exhaustive sweep complete");
    }

    private static void DumpTree(ElementInfo node, int depth, int maxDepth)
    {
        if (depth > maxDepth) return;
        Console.WriteLine(
            $"[probe] {new string(' ', depth * 2)}0x{node.Id:X8} T={node.Type} "
            + $"kids={node.Children.Count} tabTable={node.TabTable.Count} tmpl={node.TemplateList.Count}");
        foreach (ElementInfo child in node.Children)
            DumpTree(child, depth + 1, maxDepth);
    }
}