"""Keep the copy of the model, the chip and the workload inside ../widget.html equal to the ones in batching_sim.py.

    python3 embed_widget.py          rewrite the data block in widget.html
    python3 embed_widget.py --check  exit 1 if widget.html differs (test_widget.py runs the same check)
"""
import json
import re
import sys
from pathlib import Path

import batching_sim as sim

WIDGET = Path(__file__).resolve().parent.parent / "widget.html"
CONFIG_BLOCK = re.compile(r'(<script type="application/json" id="bw-config">)(.*?)(</script>)', re.S)


def config():
    """What the page needs to run the same scheduler: the model, the chip, the drawn requests and the settings it offers."""
    return {
        "params": sim.PARAMS, "bytesPerWeight": sim.FP16_BYTES, "kvBytes": sim.KV_BYTES_PER_TOKEN, "peak": sim.A100_PEAK_FLOPS, "bandwidth": sim.A100_BANDWIDTH,
        "gaps": sim.WORKLOAD["gaps"], "prompts": sim.WORKLOAD["prompts"], "replies": sim.WORKLOAD["replies"],
        "rates": sim.RATES, "slotChoices": sim.SLOT_CHOICES, "mixNames": sim.mix_names(), "opening": sim.OPENING,
        "queueCap": sim.QUEUE_CAP, "timeTicks": sim.TIME_TICKS, "playSeconds": sim.PLAY_SECONDS,
    }


def embed(html):
    """html with the data block rewritten from batching_sim.py."""
    settings = json.dumps(config(), ensure_ascii=False, separators=(", ", ": "))
    return CONFIG_BLOCK.sub(lambda m: m.group(1) + "\n" + settings + "\n" + m.group(3), html, count=1)


if __name__ == "__main__":
    current = WIDGET.read_text(encoding="utf-8")
    updated = embed(current)
    if "--check" in sys.argv:
        sys.exit(0 if updated == current else 1)
    WIDGET.write_text(updated, encoding="utf-8")
    print("widget.html data block now matches batching_sim.py")