#!/usr/bin/env python3
"""
render.py: Shopify-стенд GuardLabs.
Рендерить справжні Liquid-шаблони (python-liquid, Shopify-сумісний
синтаксис: render, forloop, offset, unless, filters) у статичні
сторінки стенду:
  layout/theme.liquid  -> store/optimized.html  (SEO + AI-search head)
  layout/before.liquid -> store/before.html     (голий head "з коробки")
"""
import json
import pathlib
import sys

from liquid import CachingFileSystemLoader, Environment

BASE = pathlib.Path(__file__).resolve().parent
OUT = pathlib.Path(sys.argv[1]) if len(sys.argv) > 1 else BASE / "out"


def money(cents) -> str:
    return f"${int(cents) / 100:,.2f}"


def money_amount(cents) -> str:
    return f"{int(cents) / 100:.2f}"


def to_json(obj) -> str:
    return json.dumps(obj, ensure_ascii=False)


def main() -> None:
    env = Environment(
        loader=CachingFileSystemLoader(
            [BASE / "theme" / "layout", BASE / "theme" / "sections", BASE / "theme" / "snippets"],
            ext=".liquid",
        )
    )
    env.filters["money"] = money
    env.filters["money_amount"] = money_amount
    env.filters["json"] = to_json

    data = json.loads((BASE / "data" / "product.json").read_text(encoding="utf-8"))
    data["critical_css"] = (BASE / "theme" / "assets" / "critical.css").read_text(encoding="utf-8").strip()

    (OUT / "store").mkdir(parents=True, exist_ok=True)
    for layout, out_name in (("theme.liquid", "optimized.html"), ("before.liquid", "before.html")):
        html = env.get_template(layout).render(**data)
        path = OUT / "store" / out_name
        path.write_text(html, encoding="utf-8")
        print(f"rendered {layout} -> {path} ({len(html)} bytes)")


if __name__ == "__main__":
    main()