#!/usr/bin/env bash
# Download the frank-secondary payload for llama.cpp on the RTX 3090:
# ajgazin/Swift-1.5-Qwen3.8-27B-Uncensored-Dynamic-MTP-GGUF:RCO-IQ3_XXS
# **with the MTP head in the file** (the -mtp variant), plus the
# PUBLISHER's OWN vision projector (mmproj-BF16.gguf, same repo). Public
# repo — no auth header, and never a token on the command line (it is
# world-readable in /proc/<pid>/cmdline).
#
# Fresh downloads, no resume (`curl -C -` once produced a 213 MB oversized
# file on a 31 GiB payload); -f/--fail-with-body so an HTTP error is not a
# success, then byte count and sha256. This repo is on Xet storage, so
# the Hub tree/blob APIs expose no LFS oid: the sha256 values below were
# computed locally after the first verified fetch (byte counts match the
# Hub's declared sizes). Idempotent: complete files are skipped. The
# projector is stored under a self-documenting dest name; the URL name
# and sha stay pinned in the table below.
#
# 2026-10-06 (Frank, evening): the payload moved to the UNCELERSED
# Swift-1.5-Qwen3.8-27B at RCO-IQ3_XXS (1.56 GiB lighter than the
# IQ3_S-mtp it replaced; the lighter quant funds the MTP draft ctx plus
# the second 131,072 slot). Rollback payload stays on disk:
# /home/dank/models/Swift15-IQ3S/ (the IQ3_S-mtp that was live until this
# swap); earlier payloads Ornith-Q8/ and MiMo-Q6K/ as well. Their
# re-fetch recipes are in git history (predecessors of this script).
#
# Usage:
#   scripts/download-frank-secondary.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/Swift15-UncIQ3XXS}"

# repo | hub-name | dest-name | bytes | sha256 (computed locally; Xet repo)
FILES=(
  "ajgazin/Swift-1.5-Qwen3.8-27B-Uncensored-Dynamic-MTP-GGUF|RCO/Swift-1.5-Qwen3.8-27B-Uncensored-Dynamic-MTP-RCO-IQ3_XXS.gguf|Swift-1.5-Qwen3.8-27B-Uncensored-Dynamic-MTP-RCO-IQ3_XXS.gguf|10442827392|e13d3e7400b6c7f980ebd30c0edd6be43eb1865b50be8562a9db042706c7d803"
  "ajgazin/Swift-1.5-Qwen3.8-27B-Uncensored-Dynamic-MTP-GGUF|mmproj-BF16.gguf|mmproj-BF16.gguf|931145888|19acd7fcf4ee504328566eddf0f8e603ef853a205b4830209d2a4908213abdea"
)

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/$destname"
  have=0
  if [[ -f "$f" ]] && [[ "$(stat -c%s "$f")" == "$size" ]]; then
    if sha256sum -c --quiet <(printf '%s  %s\n' "$sha" "$f"); then
      have=1
    fi
  fi
  if (( have )); 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"
  curl -fsSL --fail-with-body -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"