#!/usr/bin/env python3
"""Type-3 (view) flush anatomy: are floats 0..13 a live camera pose?
Sample across the whole mission + densely in the death tail; compare the
candidate position triplet(s) against the vehicle root per frame."""
import struct, os, sys
sys.path.insert(0, r'c:\VWE\TeslaRel410\dpl3-revive\patha')
import numpy as np

path = os.path.join(os.path.dirname(__file__), '..', 'captures', 'netdeath-20260708.fifodump')
data = open(path, 'rb').read()

frames = 0
created = {}
veh = {}                 # latest max-translation 0x1f pose per frame
flushes = []             # (frame, view_handle, floats24, veh_t)
last_t = None
o = 0
while o + 8 <= len(data):
    if data[o:o+4] != b'VPXM':
        o += 1; continue
    ln = struct.unpack_from('<I', data, o+4)[0]
    if o + 8 + ln > len(data): break
    body = data[o+8:o+8+ln]; o += 8 + ln
    if len(body) < 4: continue
    a = struct.unpack_from('<I', body, 0)[0]
    p = body[4:]
    if a == 9:
        frames += 1
    elif a == 1 and len(p) >= 8:
        created[struct.unpack_from('<I', p, 4)[0]] = struct.unpack_from('<I', p, 0)[0]
    elif a == 0x1f and len(p) >= 8:
        # crude: largest |t| pose in the batch = player vehicle root
        n = struct.unpack_from('<I', p, 0)[0]
        off = 4
        best = None
        for _ in range(min(n, 64)):
            if off + 4 + 48 > len(p): break
            h = struct.unpack_from('<I', p, off)[0]
            f12 = struct.unpack_from('<12f', p, off + 4)
            t = f12[9:12]
            m = abs(t[0]) + abs(t[1]) + abs(t[2])
            if best is None or m > best[0]:
                best = (m, t)
            off += 4 + 48
        if best:
            last_t = best[1]
    elif a == 3 and len(p) >= 100:
        h = struct.unpack_from('<I', p, 0)[0]
        if created.get(h) == 3:
            flushes.append((frames, h, struct.unpack_from('<24f', p, 4), last_t))

print(f"draw frames={frames}, view flushes={len(flushes)}")
handles = {}
for f, h, fl, t in flushes:
    handles[h] = handles.get(h, 0) + 1
print("view handles:", {hex(k): v for k, v in handles.items()})

def show(fr, h, fl, t):
    ts = "?" if t is None else f"({t[0]:7.1f},{t[1]:6.1f},{t[2]:7.1f})"
    print(f"  f{fr} h={h:#x} veh={ts}")
    print(f"    [0-8] " + " ".join(f"{x:7.3f}" for x in fl[0:9]))
    print(f"    [9-13]" + " ".join(f"{x:9.2f}" for x in fl[9:14])
          + f"  [14-17] " + " ".join(f"{x:.2f}" for x in fl[14:18]))

# sparse samples through the mission
print("\n-- sparse samples:")
step = max(1, len(flushes) // 12)
for i in range(0, len(flushes), step):
    show(*flushes[i])

# dense tail: last 30 flushes
print("\n-- death tail (last 30):")
for rec in flushes[-30:]:
    show(*rec)