"""MkDocs build hook: render a Specs section on each hardware or service page from its YAML frontmatter."""
from __future__ import annotations

import sys
from pathlib import Path

sys.path.insert(0, str(Path(__file__).resolve().parent))
from gen_overview import fmt_cpu, fmt_nic, fmt_ram, fmt_storage  # noqa: E402


def _table(rows: list[tuple[str, str]]) -> str:
    lines = ["| Field | Value |", "|---|---|"]
    for label, value in rows:
        if not value:
            continue
        lines.append(f"| {label} | {value} |")
    return "\n".join(lines)


def _hardware_page(meta: dict, body: str) -> str:
    rows = [
        ("Location", meta.get("location")),
        ("CPU",      fmt_cpu(meta)),
        ("RAM",      fmt_ram(meta)),
        ("Storage",  fmt_storage(meta)),
        ("NIC",      fmt_nic(meta)),
        ("Status",   meta.get("status")),
    ]
    return f"# {meta['hostname']}\n\n## Specs\n\n{_table(rows)}\n\n{body}"


def _service_page(meta: dict, body: str) -> str:
    url = meta.get("url")
    upstream = meta.get("upstream")
    rows = [
        ("Kind",     meta.get("kind")),
        ("Host",     meta.get("host")),
        ("URL",      f"[{url}]({url})" if url else ""),
        ("Tech",     meta.get("tech")),
        ("Upstream", f"[{upstream}]({upstream})" if upstream else ""),
        ("TLS",      meta.get("tls")),
        ("Status",   meta.get("status")),
    ]
    return f"# {meta['name']}\n\n## Service\n\n{_table(rows)}\n\n{body}"


def on_page_markdown(markdown, page, config, files):  # noqa: ARG001
    meta = page.meta or {}
    src = (page.file.src_uri or page.file.src_path or "").replace("\\", "/")
    if src.startswith("hardware/") and meta.get("hostname"):
        return _hardware_page(meta, markdown)
    if src.startswith("services/") and meta.get("name"):
        return _service_page(meta, markdown)
    return markdown