#!/usr/bin/env python3
"""Freezes the memo. Renders thesis/THESIS.tmpl.md and thesis/README.tmpl.md from the current metrics and keeps those metrics.

The dashboard keeps moving, the memo does not. Every number in THESIS.md and README.md comes from this render, so a
hand-edited number fails pipeline/verify_claims.py, which re-renders from the frozen metrics and compares bytes.
"""
import json, pathlib, shutil, sys

ROOT = pathlib.Path(__file__).resolve().parent.parent
sys.path.insert(0, str(ROOT / "pipeline"))
from build import derived, render  # noqa: E402


def main():
    shutil.copy(ROOT / "docs" / "data" / "metrics.json", ROOT / "thesis" / "metrics_frozen.json")
    shutil.copy(ROOT / "docs" / "data" / "model.json", ROOT / "thesis" / "model_frozen.json")
    shutil.copy(ROOT / "docs" / "data" / "grades.json", ROOT / "thesis" / "grades_frozen.json")
    metrics = derived(json.loads((ROOT / "thesis" / "metrics_frozen.json").read_text()))
    model = json.loads((ROOT / "thesis" / "model_frozen.json").read_text())
    grades = json.loads((ROOT / "thesis" / "grades_frozen.json").read_text())
    for src, dst in (("thesis/THESIS.tmpl.md", "THESIS.md"), ("thesis/README.tmpl.md", "README.md")):
        path = ROOT / src
        if path.exists():
            (ROOT / dst).write_text(render(path.read_text(), metrics, model, grades, escape=False))
            print("rendered", dst)


if __name__ == "__main__":
    sys.exit(main())