import time, os, re, subprocess, math
os.chdir("/home/yurenh2/ept/ep_run"); LOG="runs/ep_jacreg.log"
def alive(): return subprocess.run(["pgrep","-f","ckpt runs/ep_jacreg.pt"],capture_output=True).returncode==0
def latest():
    try: ls=[l for l in open(LOG) if l.startswith("step")]
    except Exception: return None
    if not ls: return None
    l=ls[-1]
    ms=re.search(r"step\s+(\d+)",l); mv=re.search(r"val CE ([\d.eE+-]+)",l)
    mb=re.search(r"best ([\d.eE+-]+)",l); mr=re.search(r"res=([\d.eE+-]+)",l); mj=re.search(r"jr=([\d.eE+-]+)",l)
    if not (ms and mv and mb and mr): return None
    return (int(ms.group(1)),float(mv.group(1)),float(mb.group(1)),float(mr.group(1)),float(mj.group(1)) if mj else 0.0)
d0=latest(); B0=d0[2] if d0 else 3.13
nb=(math.ceil(B0*10)-1)/10.0
fired=None; best_seen=99.0; best_step=0; t0=time.time()
while fired is None and time.time()-t0<12*3600:
    time.sleep(90)
    d=latest()
    if not alive(): fired=f"ep_jacreg EXITED; last {d}"; break
    if not d: continue
    step,val,best,res,jr=d
    if best<best_seen: best_seen=best; best_step=step
    if val>10 or res>0.3: fired=f"ep_jacreg DIVERGED @step{step} val{val:.2f} res{res:.1e} jr={jr:.1f} best{best:.4f} -> adaptive jacreg did NOT hold"; break
    if jr>=15.5 and res>5e-3: fired=f"ep_jacreg jr SATURATED @step{step} jr={jr:.1f}(max16) res={res:.1e} best{best:.4f} -> controller maxed, can't hold (jacreg insufficient/over-tax)"; break
    if best<=nb+1e-9: fired=f"ep_jacreg reached {nb:.2f}: step{step} best{best:.4f} val{val:.4f} res{res:.1e} jr={jr:.2f}"; break
    if step-best_step>=1500 and best>nb: fired=f"ep_jacreg STALLED above {nb:.2f}: best{best:.4f} no-improve {step-best_step} res{res:.1e} jr={jr:.2f}"; break
print(f"=== EP_JACREG GRID (target {nb:.2f}) ==="); print(fired or "12h timeout"); print("last:",latest())