"""Keep the copy of the model, the chip and the 400 invented chats inside ../widget.html equal to the ones in tiny_server.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 show
import tiny_server as ts

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


def config():
    """What the page needs to run the same toy server: the model, the chip, the drawn chats and the settings it offers."""
    b = ts.tail.batching
    return {
        "params": b.PARAMS, "bytesPerWeight": b.FP16_BYTES, "kvBytes": b.KV_BYTES_PER_TOKEN, "peak": b.A100_PEAK_FLOPS, "bandwidth": b.A100_BANDWIDTH,
        "pageTokens": ts.PAGE_TOKENS, "minQueue": ts.MIN_QUEUE, "columns": show.COLUMNS, "gaps": ts.WORKLOAD["gaps"], "prompts": ts.WORKLOAD["prompts"], "replies": ts.WORKLOAD["replies"],
        "rates": show.RATES, "pageStops": show.PAGE_STOPS, "limitStops": show.LIMIT_STOPS, "rerolls": show.REROLLS, "opening": show.OPENING,
    }


def embed(html):
    """html with the data block rewritten from tiny_server.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 tiny_server.py")