#!/usr/bin/env python3
"""Interleave five W12 hash-off whole-view cost triplets for L24/L29/L30."""
import re
import subprocess
import time
from pathlib import Path

ROOT = Path(__file__).resolve().parents[4]
OUT = ROOT / "Saved/Linux/l30"
OUT.mkdir(parents=True, exist_ok=True)
BINARIES = {
    "l24": ROOT / "Saved/Linux/l24-source/bin/linux/VoxelForgeCoreHeadless-linux24-clang19",
    "l29": ROOT / "Saved/Linux/bin/VoxelForgeCoreHeadless-linux29-clang",
    "l30": ROOT / "Saved/Linux/l30/bin/VoxelForgeCoreHeadless-linux30-speed-fade",
}
ORDERS = (
    ("l24", "l29", "l30"),
    ("l29", "l30", "l24"),
    ("l30", "l24", "l29"),
    ("l24", "l30", "l29"),
    ("l29", "l24", "l30"),
)
WHOLE_READY = re.compile(r"\bwhole_view_ready=([0-9.]+)s")
rows = []
for recipe in ("surface-world", "floating-islands"):
    for pair, order in enumerate(ORDERS, 1):
        for build in order:
            name = f"cost-speedfade-{recipe}-pair{pair}-{build}"
            logfile = OUT / f"{name}.log"
            command = [
                "prlimit", "--as=6442450944", "--", str(BINARIES[build]),
                str(ROOT / "Standalone/data/owner_world.json"),
                "--workers=12", "--world-assembler-prototype", "--stream-benchmark",
                "--stream-pipeline", "--force-generate", "--clip-radius=3",
                "--max-clip-level=8", "--max-level=-1", f"--recipe={recipe}",
            ]
            started = time.monotonic()
            with logfile.open("w", encoding="utf-8") as stream:
                subprocess.run(command, stdout=stream, stderr=subprocess.STDOUT,
                               check=True, timeout=1800)
            elapsed = time.monotonic() - started
            text = logfile.read_text(encoding="utf-8", errors="replace")
            matches = WHOLE_READY.findall(text)
            if len(matches) != 1 or "hash=off" not in text or "cache_hits=0" not in text:
                raise SystemExit(f"invalid cost run: {name}; see {logfile}")
            ready = float(matches[0])
            rows.append((recipe, pair, build, ready, elapsed))
            print(f"{recipe} pair={pair} build={build} whole_view_ready={ready:.3f}s "
                  f"process_elapsed={elapsed:.3f}s", flush=True)

summary = OUT / "cost-runs-speedfade.csv"
summary.write_text("recipe,pair,build,whole_view_ready_seconds,process_elapsed_seconds\n" +
    "".join(f"{recipe},{pair},{build},{ready:.6f},{elapsed:.6f}\n"
            for recipe, pair, build, ready, elapsed in rows), encoding="utf-8")
print(f"wrote {summary}", flush=True)