// PesChainAudit — recursively walk weather PES chains, dump every hook,
// and decode every CreateParticleHook target ParticleEmitter.
using System;
using System.Collections.Generic;
using System.IO;
using DatReaderWriter;
using DatReaderWriter.DBObjs;
using DatReaderWriter.Options;
using DatReaderWriter.Types;
using SysEnv = System.Environment;
using DatPhysicsScript = DatReaderWriter.DBObjs.PhysicsScript;

string datDir = SysEnv.GetEnvironmentVariable("ACDREAM_DAT_DIR")
    ?? Path.Combine(SysEnv.GetFolderPath(SysEnv.SpecialFolder.UserProfile),
                    "Documents", "Asheron's Call");
Console.WriteLine($"datDir = {datDir}");
using var dats = new DatCollection(datDir, DatAccessType.Read);

uint[] roots = { 0x33000453u, 0x33000428u, 0x3300042Cu, 0x33000429u, 0x3300042Du };

var rainCandidates = new List<(uint pesRoot, uint emitterId, double life, float maxOff, System.Numerics.Vector3 a)>();

foreach (var root in roots)
{
    Console.WriteLine();
    Console.WriteLine($"############ ROOT PES 0x{root:X8} ############");
    var visited = new HashSet<uint>();
    WalkPes(root, depth: 0, rootForReport: root);

    void WalkPes(uint pesId, int depth, uint rootForReport)
    {
        string pad = new string(' ', depth * 2);
        if (!visited.Add(pesId))
        {
            Console.WriteLine($"{pad}PES 0x{pesId:X8} (already visited — cycle skip)");
            return;
        }
        if (!dats.TryGet<DatPhysicsScript>(pesId, out var ps) || ps is null)
        {
            Console.WriteLine($"{pad}PES 0x{pesId:X8} NOT FOUND");
            return;
        }
        Console.WriteLine($"{pad}PES 0x{pesId:X8} hooks={ps.ScriptData.Count}");
        for (int i = 0; i < ps.ScriptData.Count; i++)
        {
            var entry = ps.ScriptData[i];
            var hook  = entry.Hook;
            string head = $"{pad}  [{i}] t={entry.StartTime:F3}s {hook.HookType}";
            switch (hook)
            {
                case CallPESHook call:
                    Console.WriteLine($"{head} -> PES=0x{call.PES:X8} pause={call.Pause:F3}");
                    WalkPes(call.PES, depth + 2, rootForReport);
                    break;
                case CreateParticleHook cp:
                    uint eid = (uint)cp.EmitterInfoId;
                    Console.WriteLine($"{head} EmitterInfoId=0x{eid:X8} PartIdx={cp.PartIndex} EmitterId={cp.EmitterId}");
                    DumpEmitter(eid, pad + "      ", rootForReport);
                    break;
                case CreateBlockingParticleHook _:
                    Console.WriteLine($"{head} (no payload — looks at next hook)");
                    break;
                case SoundHook sh:
                    Console.WriteLine($"{head} sound=0x{(uint)sh.Id:X8}");
                    break;
                case SoundTableHook stb:
                    Console.WriteLine($"{head} soundType={stb.SoundType}");
                    break;
                case SetLightHook _:
                    Console.WriteLine($"{head} (set-light)");
                    break;
                case ScaleHook sc:
                    Console.WriteLine($"{head} end={sc.End} time={sc.Time}");
                    break;
                case TransparentHook th:
                    Console.WriteLine($"{head} start={th.Start} end={th.End} time={th.Time}");
                    break;
                case DefaultScriptHook _:
                case DefaultScriptPartHook _:
                case AnimationDoneHook _:
                case NoDrawHook _:
                    Console.WriteLine(head);
                    break;
                default:
                    Console.WriteLine($"{head} (no decoder)");
                    break;
            }
        }
    }

    void DumpEmitter(uint emitterInfoId, string pad, uint rootForReport)
    {
        if (!dats.TryGet<ParticleEmitter>(emitterInfoId, out var pe) || pe is null)
        {
            Console.WriteLine($"{pad}ParticleEmitter 0x{emitterInfoId:X8} NOT FOUND");
            return;
        }
        Console.WriteLine($"{pad}ParticleEmitter 0x{emitterInfoId:X8}");
        Console.WriteLine($"{pad}  EmitterType={pe.EmitterType} ParticleType={pe.ParticleType}");
        Console.WriteLine($"{pad}  Gfx=0x{(uint)pe.GfxObjId:X8} HwGfx=0x{(uint)pe.HwGfxObjId:X8}");
        Console.WriteLine($"{pad}  Birthrate={pe.Birthrate:F4}s MaxParticles={pe.MaxParticles} Initial={pe.InitialParticles} Total={pe.TotalParticles} TotalSeconds={pe.TotalSeconds:F3}");
        Console.WriteLine($"{pad}  Lifespan={pe.Lifespan:F3}s ±{pe.LifespanRand:F3}");
        Console.WriteLine($"{pad}  OffsetDir=({pe.OffsetDir.X:F3},{pe.OffsetDir.Y:F3},{pe.OffsetDir.Z:F3}) MinOffset={pe.MinOffset:F2} MaxOffset={pe.MaxOffset:F2}");
        Console.WriteLine($"{pad}  A=({pe.A.X:F3},{pe.A.Y:F3},{pe.A.Z:F3}) MinA={pe.MinA:F3} MaxA={pe.MaxA:F3}");
        Console.WriteLine($"{pad}  B=({pe.B.X:F3},{pe.B.Y:F3},{pe.B.Z:F3}) MinB={pe.MinB:F3} MaxB={pe.MaxB:F3}");
        Console.WriteLine($"{pad}  C=({pe.C.X:F3},{pe.C.Y:F3},{pe.C.Z:F3}) MinC={pe.MinC:F3} MaxC={pe.MaxC:F3}");
        Console.WriteLine($"{pad}  Scale start={pe.StartScale:F2} final={pe.FinalScale:F2} rand={pe.ScaleRand:F2}");
        Console.WriteLine($"{pad}  Trans start={pe.StartTrans:F2} final={pe.FinalTrans:F2} rand={pe.TransRand:F2} ParentLocal={pe.IsParentLocal}");
        bool rainLike = pe.Lifespan > 0.5
                       && (pe.OffsetDir.Z > 1.0f || pe.MaxOffset > 5.0f || pe.A.Z < -0.1f);
        if (pe.Lifespan > 0.5)
            Console.WriteLine($"{pad}  >>> Lifespan>0.5s — possibly rain-like (downward A.Z={pe.A.Z:F2}, MaxOffset={pe.MaxOffset:F2})");
        if (rainLike)
            rainCandidates.Add((rootForReport, emitterInfoId, pe.Lifespan, pe.MaxOffset, pe.A));
    }
}

Console.WriteLine();
Console.WriteLine("################ RAIN-LIKE EMITTER SUMMARY ################");
if (rainCandidates.Count == 0)
{
    Console.WriteLine("NONE — no emitter discovered (any depth) has Lifespan>0.5s with downward A or large MaxOffset.");
    Console.WriteLine("=> All 5 weather PESes are flash/sound only; no hidden rain emitter exists in these chains.");
}
else
{
    foreach (var c in rainCandidates)
    {
        Console.WriteLine($"  rootPES=0x{c.pesRoot:X8} emitter=0x{c.emitterId:X8} life={c.life:F2}s maxOff={c.maxOff:F2} A=({c.a.X:F2},{c.a.Y:F2},{c.a.Z:F2})");
    }
}

return 0;