#!/usr/bin/env python3
"""Publish the normalized PROCITY GLBs + thumbnails to the shared 3GOD depot.

Mirrors the house push contract (meshgod/server.py:_push_3god) exactly:
  * auth cookie:  3g = hmac_sha256(GOD3_PW, "3god-ok").hexdigest()
  * GLB   POST {depot}/api/upload?name=<file>   body=glb   model/gltf-binary
  * thumb POST {depot}/api/thumb?name=<file>    body=png   image/png

Credentials come from the environment — this script never contains or logs the secret:
    export GOD3_PW=...                       # the shared depot password (ask John)
    export GOD3_DEPOT=https://digalot.fyi/3god   # optional; this is the default
    python3 pipeline/publish.py                  # publish every GLB in _normalized/
    python3 pipeline/publish.py --dry-run        # list what WOULD upload, no network

This is the one outward-facing step in the lane; run it deliberately. Uploads are
idempotent (same name overwrites) and reversible via the depot's own delete.
"""
import os, sys, glob, hmac, hashlib, json, urllib.request, urllib.parse

ROOT = os.path.dirname(os.path.dirname(os.path.abspath(__file__)))
NORM = os.path.join(ROOT, "pipeline", "_normalized")
THUMBS = os.path.join(ROOT, "web", "assets", "thumbs")
DEPOT = os.environ.get("GOD3_DEPOT", "https://digalot.fyi/3god").rstrip("/")
PW = os.environ.get("GOD3_PW", "")
DRY = "--dry-run" in sys.argv
# assets intentionally excluded from publish (see AUDIT.md)
SKIP = {"procity_fit_cube_shelf_01.glb"}


def cookie():
    tok = hmac.new(PW.encode(), b"3god-ok", hashlib.sha256).hexdigest()
    return f"3g={tok}"


def to_jpeg(png_path):
    """PNG thumb → JPEG bytes (the depot's /api/thumb accepts jpeg only).
    Uses macOS sips (no deps); falls back to PIL if available elsewhere."""
    import subprocess, tempfile
    if sys.platform == "darwin":
        with tempfile.NamedTemporaryFile(suffix=".jpg", delete=False) as t:
            tmp = t.name
        try:
            subprocess.run(["sips", "-s", "format", "jpeg", "-s", "formatOptions", "85",
                            png_path, "--out", tmp], check=True, capture_output=True)
            return open(tmp, "rb").read()
        finally:
            os.unlink(tmp)
    from PIL import Image  # non-mac fallback
    import io
    buf = io.BytesIO()
    Image.open(png_path).convert("RGB").save(buf, "JPEG", quality=85)
    return buf.getvalue()


def post(path, body, ctype):
    req = urllib.request.Request(DEPOT + path, data=body, method="POST",
                                 headers={"Content-Type": ctype, "Cookie": cookie()})
    with urllib.request.urlopen(req, timeout=120) as r:
        return r.status, r.read().decode("utf-8", "replace")[:200]


def main():
    if "--verify" in sys.argv:              # drift-check the record vs the live depot, no publish
        recpath = os.path.join(ROOT, "pipeline", "_published.json")
        record = sorted(set(json.load(open(recpath)))) if os.path.exists(recpath) else []
        print(f"_published.json: {len(record)} entries")
        drift_check(record)
        return
    only = sys.argv[sys.argv.index("--only") + 1] if "--only" in sys.argv else ""
    # Passwordless tailnet path (round-3 decision #4): GOD3_DEPOT overridden to an allowlisted
    # tailnet endpoint (e.g. http://100.94.195.115:8788) trusts this box — no cookie needed.
    tailnet = DEPOT != "https://digalot.fyi/3god"
    glbs = sorted(g for g in glob.glob(NORM + "/*.glb")
                  if os.path.basename(g) not in SKIP and (not only or only in os.path.basename(g)))
    if not glbs:
        print(f"no GLBs in {NORM} matching {only!r} — run normalize.py first"); sys.exit(1)
    print(f"depot: {DEPOT}   assets: {len(glbs)}   {'(DRY RUN)' if DRY else ''}"
          + ("   [tailnet passwordless]" if tailnet else ""))
    if not DRY and not PW and not tailnet:
        print("ERROR: GOD3_PW not set and no tailnet GOD3_DEPOT. Either:\n"
              "  export GOD3_DEPOT=http://100.94.195.115:8788   # passwordless from an allowlisted box\n"
              "  or export GOD3_PW=...                          # public depot (ask John)")
        sys.exit(2)
    published = []
    for g in glbs:
        name = os.path.basename(g)
        thumb = os.path.join(THUMBS, name.replace(".glb", ".png"))
        size = os.path.getsize(g)
        if DRY:
            print(f"  would upload {name:38} {size//1024:>5}KB  thumb={os.path.exists(thumb)}")
            continue
        try:
            st, msg = post("/api/upload?name=" + urllib.parse.quote(name),
                           open(g, "rb").read(), "model/gltf-binary")
            # thumb is cosmetic — never fail the publish over it (house contract:
            # /api/thumb is keyed by the stored GLB name and wants JPEG)
            tstat = ""
            if os.path.exists(thumb):
                try:
                    ts, _ = post("/api/thumb?name=" + urllib.parse.quote(name),
                                 to_jpeg(thumb), "image/jpeg")
                    tstat = f" thumb:{ts}"
                except Exception as te:
                    tstat = f" thumb:ERR({te})"
            ok = st in (200, 201)
            print(f"  {'OK ' if ok else 'ERR'} {name:38} glb:{st}{tstat}")
            if ok:
                published.append(name)
        except Exception as e:
            print(f"  ERR {name:38} {e}")
    if not DRY:
        # MERGE, never replace (decision #3): _published.json is the provenance record of everything
        # ever pushed — a --only run must not clobber it to just this run's files (the R5 bug).
        recpath = os.path.join(ROOT, "pipeline", "_published.json")
        existing = set()
        if os.path.exists(recpath):
            try:
                existing = set(json.load(open(recpath)))
            except Exception:
                pass
        merged = sorted(existing | set(published))
        json.dump(merged, open(recpath, "w"), indent=2)
        print(f"\npublished {len(published)}/{len(glbs)} this run → "
              f"_published.json now {len(merged)} (was {len(existing)}).")
        drift_check(merged)


def drift_check(record):
    """Compare _published.json (the published-name RECORD) against the depot's actual file list.
    A recorded name absent from the depot is real drift (deleted / never landed); a `procity_` file
    live on the depot but unrecorded is a provenance gap. R17 ledger #4: the old check filtered the
    depot list to `procity_*` and so false-flagged genuinely-published non-`procity_` assets
    (sit.glb, the reused vintage-cash-register) as "not live" — now every published name is confirmed
    by the name list itself, and only OTHER projects' non-`procity_` files on the shared depot are
    ignored (they're expected, not ours)."""
    try:
        live = fetch_depot_files()
    except Exception as e:
        print(f"  (drift check skipped — depot list unreachable: {e})")
        return
    rec = set(record)
    missing_from_depot = rec - live                                    # recorded but not live → real drift
    unrecorded = {f for f in live if f.startswith("procity_")} - rec   # our namespace live but unrecorded
    if unrecorded:
        print(f"  DRIFT: {len(unrecorded)} procity_ on depot not in _published.json: "
              f"{sorted(unrecorded)[:5]}")
    if missing_from_depot:
        print(f"  DRIFT: {len(missing_from_depot)} in _published.json not live on depot: "
              f"{sorted(missing_from_depot)[:5]}")
    if not unrecorded and not missing_from_depot:
        print(f"  ✓ _published.json matches the live depot (all {len(rec)} recorded assets live).")


def fetch_depot_files():
    """EVERY file name on the depot (not prefix-filtered), so the drift check confirms any published
    name — including non-`procity_` clips/reuses — is live by the name itself, not a prefix heuristic."""
    import urllib.request as _u
    req = _u.Request(DEPOT + "/api/list", headers={"User-Agent": "procity-validator/1.0"})
    with _u.urlopen(req, timeout=15) as r:
        d = json.loads(r.read().decode("utf-8"))
    assets = d.get("assets", d) if isinstance(d, dict) else d
    return {a["file"] for a in assets if a.get("file")}


if __name__ == "__main__":
    main()