import json, os, shutil, subprocess, time
ROOT="/Users/oscar/.worktree/hot-reload/labs/hot-reload"; REC=f"{ROOT}/target/kan-hot/debug/rustc"
DEPS=f"{ROOT}/target/debug/deps"; SRC=f"{ROOT}/api-common/src/lib.rs"
BASE="/private/var/folders/ft/fkt3bwqd01g7f54wvyz9wgjc0000gn/T/opencode/pipe/out11"
def load(n): return json.load(open(f"{REC}/{n}.json"))
def strip_owned(argv):
    out=[]; i=1
    while i<len(argv):
        a=argv[i]
        if a=="-C" and i+1<len(argv) and any(argv[i+1].startswith(p) for p in ("incremental=","codegen-units=","debuginfo=")): i+=2; continue
        if a.startswith("-C") and any(a[2:].startswith(p) for p in ("incremental=","codegen-units=","debuginfo=")): i+=1; continue
        out.append(a); i+=1
    return out
common=load("api_common"); api=load("api"); orig=open(SRC).read()
shutil.rmtree(BASE,ignore_errors=True); os.makedirs(BASE)
def run_common(outdir,mark):
    open(SRC,"w").write(orig.replace("nested-v1",mark))
    ca=[common["argv"][0]]+strip_owned(common["argv"])+["-C","debuginfo=0","-C","codegen-units=1"]
    j=ca.index("--out-dir"); ca[j+1]=outdir
    subprocess.run(ca,cwd=common["cwd"],env=dict(common["env"]),stdout=subprocess.DEVNULL,stderr=subprocess.DEVNULL)
    return os.path.join(outdir,[f for f in os.listdir(outdir) if f.startswith("libapi_common") and f.endswith(".rmeta")][0])
def api_cmd(outdir,inc,rmeta,extra=()):
    raw=[api["argv"][0]]+[a if not a.startswith("--extern=api_common=") else f"--extern=api_common={rmeta}" for a in api["argv"][1:]]
    aa=[api["argv"][0]]+strip_owned(raw)+["-C","debuginfo=0","-C","codegen-units=8","-C",f"incremental={inc}"]+list(extra)
    j=aa.index("--out-dir"); aa[j+1]=outdir
    return aa
for name,outdir in [("deps",DEPS),("kanhot",f"{BASE}/kanhot")]:
    os.makedirs(outdir,exist_ok=True)
    inc=f"{BASE}/inc_{name}"
    for i in range(2):
        rmeta=run_common(outdir,f"e11-{name}-warm{i}")
        subprocess.run(api_cmd(outdir,inc,rmeta),cwd=api["cwd"],env=dict(api["env"]),stdout=subprocess.DEVNULL,stderr=subprocess.DEVNULL); time.sleep(.15)
    rmeta=run_common(outdir,f"e11-{name}-timed")
    env=dict(api["env"]); env["RUSTC_BOOTSTRAP"]="1"
    s=time.monotonic(); p=subprocess.run(api_cmd(outdir,inc,rmeta,["-Ztime-passes"]),cwd=api["cwd"],env=env,capture_output=True,text=True); t=(time.monotonic()-s)*1000
    print(f"==== {name} total={t:.1f}ms")
    lines=[l for l in p.stderr.splitlines() if "time" in l and ("codegen" in l or "metadata" in l or "typeck" in l or "expand" in l or "borrow" in l or "monomorph" in l or "LLVM" in l or "write" in l or "total" in l)]
    for l in lines[-20:]: print(l[:170])