#!/usr/bin/env bash
# Fetch candidate payload for frank-zealot: prism-ml/Ternary-Bonsai-2-27B-gguf
# at **PQ2_0** (the ternary g128 pack stored 2 bits/trit + fp16 scale per 128)
# plus the publisher's Q8_0 vision projector. Public repo — no auth header,
# and never a token on the command line (world-readable in /proc/<pid>/cmdline).
#
# Why PQ2_0 and not PTQ1_0: measured on the same silicon family (community
# 3090 Ti report, PrismML-Eng/Bonsai-demo) PTQ1_0 is ~17 % slower decode and
# ~48 % slower prefill than PQ2_0 on Ampere; the model card says the same
# (PTQ1_0 wins only on Ada/L4). The pack is consumed packed — 6.71 GiB
# resident, never expanded to f16.
#
# Header facts (HTTP range parse, not the card): arch qwen35, 64 blocks,
# full_attention_interval 4 => 16 full-attention + 48 Gated DeltaNet layers,
# 4 KV heads x 256 dim, native 262,144, vocab 248,320, and NO nextn/mtp
# tensors (block_count is 64 real layers) — so in-file MTP is impossible and
# SPEC_TYPE=none is forced by the payload. 402 tensors carry the custom type
# id 142 (GGML_TYPE_PQ2_0, group 128): STOCK llama.cpp refuses this file, and
# loads the repo's F16 file silently with garbage output — only the
# PrismML-Eng/llama.cpp fork applies the prism.hadamard.* activation
# transform declared in this file's metadata.
#
# These ARE LFS files (unlike the HauhauCS payload): the Hub publishes the
# oid, and both shas below are the Hub's LFS sha256. The mmproj sha has also
# been recomputed locally against the copy in /home/dank/models/Bonsai2-CRACK/.
#
# NOT pinned by this script: /home/dank/models/Bonsai2-CRACK/
# Bonsai-2-27B-PQ2_0-CRACK.gguf (7,206,168,928 B, sha256 5b24ea3eebc3e0bc...,
# fetched 2026-10-06 by an undocumented ad-hoc path). Same size as the
# official file, different bytes — a dealign/CRACK (uncensored) variant of the
# same ternary pack. Provenance unverified; it is a candidate arm, not this
# script's payload.
#
# Usage:
#   scripts/download-frank-zealot-bonsai2.sh [DEST_DIR] [--verify-only]
set -euo pipefail

DEST=""
VERIFY_ONLY=0
for arg in "$@"; do
    case "$arg" in
        --verify-only) VERIFY_ONLY=1 ;;
        *) DEST="$arg" ;;
    esac
done
DEST="${DEST:-/home/dank/models/Bonsai2-PQ2_0}"

# repo | hub-name | dest-name | bytes | sha256 (Hub LFS oid)
FILES=(
  "prism-ml/Ternary-Bonsai-2-27B-gguf|Ternary-Bonsai-2-27B-PQ2_0.gguf|Ternary-Bonsai-2-27B-PQ2_0.gguf|7206168928|3907dc1658db1f78a9826bf8d5bcb8dc65db0d466388937af57f2294fae62ec1"
  "prism-ml/Ternary-Bonsai-2-27B-gguf|Ternary-Bonsai-2-27B-mmproj-Q8_0.gguf|Ternary-Bonsai-2-27B-mmproj-Q8_0.gguf|629246976|6807ede61d570bb86ba34b756a0fa109edc33668604de867c6ea6d8f1d631903"
)

mkdir -p "$DEST"
status=0
for entry in "${FILES[@]}"; do
  IFS='|' read -r repo hubname destname size sha <<<"$entry"
  url="https://huggingface.co/${repo}/resolve/main/${hubname}"
  f="$DEST/$destname"
  if [[ -f "$f" ]] && [[ "$(stat -c%s "$f")" == "$size" ]] \
     && sha256sum -c --quiet <(printf '%s  %s\n' "$sha" "$f"); then
    echo "OK        $destname"
    continue
  fi
  if (( VERIFY_ONLY )); then
    echo "MISSING   $destname"
    status=1
    continue
  fi
  echo "FETCHING  $destname (from $repo)"
  tmp="$f.part"
  # No resume: `curl -C -` once produced an oversized file on a 31 GiB
  # payload. -f/--fail-with-body so an HTTP 401/403 body is never a success.
  curl -fsSL --fail-with-body --retry 3 --retry-delay 5 -o "$tmp" "$url"
  mv "$tmp" "$f"
  if [[ "$(stat -c%s "$f")" != "$size" ]]; then
    echo "SIZE FAIL $destname ($(stat -c%s "$f") != $size)"
    status=1
    continue
  fi
  if ! sha256sum -c --quiet <(printf '%s  %s\n' "$sha" "$f"); then
    echo "SHA FAIL  $destname"
    status=1
    continue
  fi
  echo "VERIFIED  $destname"
done
if (( status == 0 )); then
  echo "DOWNLOAD_DONE $DEST"
else
  echo "DOWNLOAD_FAILED $DEST" >&2
fi
exit "$status"