#!/usr/bin/env python3
"""Integrity check of the mixamo/ dataset (run from mixamo/scripts/).
Usage: python3 validate.py            # structural + JSON checks (offline)
       python3 validate.py <tokfile>  # + sampled Mixamo API cross-check
Structural (corruption), JSON completeness+correctness, optional API cross-check."""
import json, os, sys, random, time
HERE = os.path.dirname(os.path.abspath(__file__))
sys.path.insert(0, HERE)
from fbx_frames import parse as fbxparse
ROOT = os.path.dirname(HERE)
ADIR, CDIR = os.path.join(ROOT,"animation"), os.path.join(ROOT,"character")
tokfile = sys.argv[1] if len(sys.argv) > 1 else None
MAGIC = b"Kaydara FBX Binary"
problems = []
def bad(m): problems.append(m); print("  ✗", m)

def scan(d, need_mesh):
    s={"count":0,"header":[],"parse":[],"tiny":[],"norig":[],"nomesh":[],"frames":{}}
    for f in sorted(os.listdir(d)):
        if not f.endswith(".fbx"): continue
        p=os.path.join(d,f); s["count"]+=1
        if MAGIC not in open(p,"rb").read(64): s["header"].append(f); continue
        if os.path.getsize(p) < 2000: s["tiny"].append(f)
        try: s["frames"][f]=fbxparse(p)["keys_max"]
        except Exception as e: s["parse"].append((f,str(e)[:40])); continue
        blob=open(p,"rb").read()
        if b"LimbNode" not in blob: s["norig"].append(f)
        if need_mesh and blob.count(b"Vertices")<1: s["nomesh"].append(f)
    return s

print("=== 1. STRUCTURAL animation ==="); a=scan(ADIR,False)
print("  FBX:",a["count"])
for k,l in [("header","bad header"),("parse","parse fail"),("tiny","too small"),("norig","no skeleton")]:
    if a[k]: bad("%d %s: %s"%(len(a[k]),l,a[k][:5]))
if not any(a[k] for k in ("header","parse","tiny","norig")): print("  ✓ all valid, rigged, non-truncated")

print("=== 2. STRUCTURAL character ==="); c=scan(CDIR,True)
print("  FBX:",c["count"])
for k,l in [("header","bad header"),("parse","parse fail"),("tiny","too small"),("nomesh","no skin mesh")]:
    if c[k]: bad("%d %s: %s"%(len(c[k]),l,c[k][:5]))
if not any(c[k] for k in ("header","parse","tiny","nomesh")): print("  ✓ all valid, with skin mesh")

for d in (ADIR,CDIR):
    parts=[f for f in os.listdir(d) if f.endswith(".part")]
    if parts: bad(".part leftovers in %s: %s"%(d,parts))

print("=== 3. JSON COMPLETENESS ===")
P=json.load(open(os.path.join(ROOT,"animation_prompts.json")))
F=json.load(open(os.path.join(ROOT,"animation_frames.json")))
C=json.load(open(os.path.join(ROOT,"characters.json")))
af={f for f in os.listdir(ADIR) if f.endswith(".fbx")}
cf={f for f in os.listdir(CDIR) if f.endswith(".fbx")}
def cmp(n,keys,files):
    m=files-set(keys); x=set(keys)-files
    if m: bad("%s missing %d: %s"%(n,len(m),list(m)[:5]))
    if x: bad("%s extra %d: %s"%(n,len(x),list(x)[:5]))
    if not m and not x: print("  ✓ %s == %d files"%(n,len(files)))
cmp("animation_prompts.json",P,af); cmp("animation_frames.json",F,af); cmp("characters.json",C,cf)

print("=== 4. JSON CORRECTNESS ===")
bp=[k for k,v in P.items() if not v.get("prompt") or not v.get("motion_id")]
if bp: bad("%d prompts missing prompt/id"%len(bp))
else: print("  ✓ all prompts non-empty + motion_id")
mm=[(k,F[k],a["frames"].get(k)) for k in F if a["frames"].get(k)!=F[k]]
if mm: bad("%d frame values != reparsed: %s"%(len(mm),mm[:5]))
else: print("  ✓ all frame values == parsed FBX keyframes")
ids=[v["motion_id"] for v in P.values()]
print("  motion_ids: %d unique (%d dup)"%(len(set(ids)),len(ids)-len(set(ids))))

if tokfile:
    print("=== 5. API CROSS-CHECK (sample 40) ===")
    import requests, mixamo_download as M
    tok=open(tokfile).read().strip(); s=requests.Session(); s.headers.update(M.headers(tok))
    ok=0; bx=[]
    for fn in random.sample(list(P),min(40,len(P))):
        try:
            det=M.get(s,"https://www.mixamo.com/api/v1/products/%s"%P[fn]["motion_id"],params={"character_id":M.Y_BOT})
            if det.get("name")==P[fn]["prompt"]: ok+=1
            else: bx.append((fn,det.get("name"),P[fn]["prompt"]))
        except Exception as e: bx.append((fn,"err",str(e)[:30]))
        time.sleep(0.15)
    print("  prompt-name match: %d/40"%ok)
    for b in bx[:8]: print("   ",b)
    if ok==40: print("  ✓ sampled API cross-check clean")

print("\n===== SUMMARY: animation %d | character %d | PROBLEMS %d ====="%(a["count"],c["count"],len(problems)))
print("✓✓ ALL CHECKS PASSED" if not problems else "SEE PROBLEMS ABOVE")