"""Aperçu design hors-ligne : rend dashboard.html avec des données fictives en PNG
paysage (1680x1264, niveaux de gris, sans rotation), pour itérer sur le design sans
dépendre des intégrations réseau (Claude, météo, NAS, Codex).

Usage:  .venv/bin/python ../dev/preview.py [sortie.png]
"""
from __future__ import annotations

import asyncio
import io
import sys
from pathlib import Path

from jinja2 import Environment, FileSystemLoader, select_autoescape
from PIL import Image
from playwright.async_api import async_playwright

BACKEND = Path(__file__).resolve().parent.parent / "backend"
TEMPLATES = BACKEND / "templates"
WIDTH, HEIGHT = 1680, 1264

sys.path.insert(0, str(BACKEND))
from fonts import font_face_css  # noqa: E402

env = Environment(
    loader=FileSystemLoader(str(TEMPLATES)),
    autoescape=select_autoescape(["html"]),
)

CTX = {
    "width": WIDTH,
    "height": HEIGHT,
    "fonts": font_face_css(),
    "time": "14:32",
    "dow": "lundi",
    "date": "15 juin",
    "updated": "14:32",
    "stale": False,
    "weather": {
        "ok": True, "kind": "partly", "temp": 21.4, "feels_like": 20.1,
        "temp_min": 14.0, "temp_max": 24.0, "precip_prob": 20,
        "label": "Peu nuageux",
    },
    "claude": {
        "ok": True,
        "extra": {"label": "Crédits API : 38 % restant"},
        "burn_rate": 1820,
    },
    "gauges": [
        {"name": "Session (5 h)", "remaining": 64, "resets_in": "2 h 10", "extra": ""},
        {"name": "Hebdo (7 j)", "remaining": 12, "resets_in": "3 j", "extra": "Opus 41% rest."},
    ],
    "codex": {
        "ok": True, "plan_type": "plus", "limited": False,
        "gauges": [
            {"name": "Session (5 h)", "remaining": 78, "resets_in": "1 h 40"},
            {"name": "Hebdo (7 j)", "remaining": 33, "resets_in": "4 j"},
        ],
    },
    "nas": {
        "ok": True,
        "disks": [
            {"label": "Volume 1", "percent": 72, "free_human": "1,4 To"},
            {"label": "Volume 2", "percent": 41, "free_human": "5,8 To"},
        ],
        "docker_running": 18, "docker_total": 19, "docker_unhealthy": 1,
        "vpn_ok": True, "vpn_port": 51820,
    },
    "trackers": [
        {"ok": True, "label": "c411", "ratio_h": "1,04", "has_io": True, "up_h": "378 Go", "down_h": "365 Go", "tokens": None},
        {"ok": True, "label": "torr9", "ratio_h": "1,62", "has_io": True, "up_h": "226 Go", "down_h": "140 Go", "tokens": 2168, "tokens_h": "2 168", "tokens_label": "token"},
        {"ok": True, "label": "tr4ker", "ratio_h": "5233,52", "has_io": True, "up_h": "5,62 To", "down_h": "1 Go", "tokens": 223, "tokens_h": "223", "tokens_label": "token"},
        {"ok": True, "label": "yggreborn", "ratio_h": "7,63", "has_io": True, "up_h": "60,55 Go", "down_h": "7,94 Go", "tokens": None},
    ],
    "kobo": {"ok": True, "percent": 63, "charging": False, "low": False, "stale": False},
}


async def main() -> None:
    out = Path(sys.argv[1]) if len(sys.argv) > 1 else Path(__file__).parent / "preview.png"
    html = env.get_template("dashboard.html").render(**CTX)
    async with async_playwright() as p:
        browser = await p.chromium.launch(args=["--no-sandbox", "--disable-dev-shm-usage"])
        page = await browser.new_page(viewport={"width": WIDTH, "height": HEIGHT}, device_scale_factor=1)
        await page.set_content(html, wait_until="networkidle")
        png = await page.screenshot(type="png", clip={"x": 0, "y": 0, "width": WIDTH, "height": HEIGHT})
        await browser.close()
    Image.open(io.BytesIO(png)).convert("L").save(out)
    print(f"écrit {out}")


if __name__ == "__main__":
    asyncio.run(main())