"""Build docs/feikong_std77.md — topical index of std 飞控 projects.

Selection: origin=std AND ('飞控' in name OR '飞控' in introduction)
Source: data/state/oshwhub_listing_full.jsonl (full-corpus listing snapshot)
Augmented from each project's data/raw/oshwhub/<uuid>/metadata.json:
  - license
  - source completeness (editor docs vs attachments-only)
  - editor_version
"""

from __future__ import annotations

import json
from pathlib import Path

REPO = Path(__file__).resolve().parent.parent
LISTING = REPO / "data" / "state" / "oshwhub_listing_full.jsonl"
RAW_ROOT = REPO / "data" / "raw" / "oshwhub"
OUT = REPO / "docs" / "feikong_std77.md"


def collect() -> list[dict]:
    rows: list[dict] = []
    for ln in LISTING.read_text(encoding="utf-8").splitlines():
        if not ln.strip():
            continue
        it = json.loads(ln)
        if it.get("origin") != "std":
            continue
        name = it.get("name") or ""
        intro = it.get("introduction") or ""
        if "飞控" not in name and "飞控" not in intro:
            continue
        uuid = it["uuid"]
        meta_p = RAW_ROOT / uuid / "metadata.json"
        meta: dict = {}
        if meta_p.is_file():
            meta = json.loads(meta_p.read_text(encoding="utf-8"))
        rows.append({"listing": it, "meta": meta})
    return rows


def render(rows: list[dict]) -> str:
    out: list[str] = []
    w = out.append

    n_total = len(rows)
    n_have_meta = sum(1 for r in rows if r["meta"])
    n_with_source = sum(1 for r in rows if (r["meta"].get("source_documents") or []))
    n_attachments_only = n_have_meta - n_with_source

    w("# 飞控 / Flight-Controller Projects (std)")
    w("")
    w(f"_主题定向索引：oshwhub `origin=std` 且 `name` 或 `introduction` 含「飞控」字样_")
    w("")
    w(
        f"**当前**：{n_total} 个项目 · {n_with_source} 个有可编辑器源 · "
        f"{n_attachments_only} 个仅附件（upstream 没编辑器 session）"
    )
    w("")
    w(
        "> 数据来源：`data/state/oshwhub_listing_full.jsonl` + 每项 `data/raw/oshwhub/<uuid>/metadata.json`"
    )
    w("> 排序：likes 倒序")
    w("")
    rows.sort(
        key=lambda r: -((r["listing"].get("count") or {}).get("like", 0))
    )
    w(
        "| # | Title | Author | License | Source | Editor | "
        "❤️ Likes | ⭐ Stars | 🍴 Forks | 👁 Views | Grade |"
    )
    w(
        "|---|-------|--------|---------|--------|--------|"
        "--------:|--------:|--------:|--------:|------:|"
    )
    for i, r in enumerate(rows, 1):
        it = r["listing"]
        m = r["meta"]
        c = it.get("count") or {}
        uuid = it["uuid"]
        title = it.get("name") or "?"
        url = f"https://oshwhub.com/{it['path']}"
        author_user = (it.get("owner") or {}).get("username") or "?"
        author_disp = (it.get("owner") or {}).get("nickname") or author_user
        title_link = f"[{title}]({url})"
        dir_link = f"[`{uuid[:8]}…`](../data/raw/oshwhub/{uuid}/)"
        author_link = f"[{author_disp}](https://oshwhub.com/{author_user})"
        license_str = m.get("license") or "—"
        # source completeness label
        if not m:
            source_label = "❌ 未抓"
        elif m.get("source_documents"):
            n_docs = len(m["source_documents"])
            source_label = f"✅ {n_docs} docs"
        else:
            source_label = "📎 attachments-only"
        editor = m.get("editor_version") or "—"
        w(
            f"| {i} | {title_link}<br>{dir_link} | {author_link} | {license_str} | "
            f"{source_label} | {editor} | "
            f"{c.get('like', 0):,} | {c.get('star', 0):,} | {c.get('fork', 0):,} | "
            f"{c.get('views', 0):,} | {it.get('grade') or 0} |"
        )
    w("")
    w("## License 分布")
    w("")
    lic_count: dict[str, int] = {}
    for r in rows:
        lic = r["meta"].get("license") or "(未抓)"
        lic_count[lic] = lic_count.get(lic, 0) + 1
    for lic, n in sorted(lic_count.items(), key=lambda x: -x[1]):
        w(f"- `{lic}` — {n}")
    w("")
    w("## Editor 版本分布（有源工程的项目）")
    w("")
    ed_count: dict[str, int] = {}
    for r in rows:
        if r["meta"].get("source_documents"):
            ed = r["meta"].get("editor_version") or "(unknown)"
            ed_count[ed] = ed_count.get(ed, 0) + 1
    for ed, n in sorted(ed_count.items(), key=lambda x: (-x[1], x[0])):
        w(f"- `{ed}` — {n}")
    w("")
    w("## 重新生成")
    w("")
    w("```bash")
    w("uv run python scripts/build_feikong_index.py")
    w("```")
    w("")
    return "\n".join(out)


def main() -> int:
    rows = collect()
    md = render(rows)
    OUT.parent.mkdir(parents=True, exist_ok=True)
    OUT.write_text(md, encoding="utf-8")
    print(f"wrote {OUT} ({len(rows)} projects)")
    return 0


if __name__ == "__main__":
    raise SystemExit(main())