#!/bin/bash
# Libgen EN-download queue for a section (sec08 pattern, 2026-09-26).
# Usage: tools/lgdl-queue.sh <section-dir> <queue-file>
#   <section-dir>  e.g. downloads/09-<name>
#   <queue-file>   lines: "<f_id> <edition_id> <file-name-base>"
# Per-file: skip-if-exists, timeout 1500, tries=3 (fast-fail under ads.php throttle),
# unbuffered logs. Pair with lgdl-rounds.sh for cooldown rounds.
cd /home/dima/jung
D="$1"; Q="$2"; LOG="$D/queue.log"
[ -z "$D" ] || [ -z "$Q" ] && { echo "usage: lgdl-queue.sh <section-dir> <queue-file>"; exit 1; }
echo "=== queue start $(date)" >> "$LOG"
while read -r f_id ed_id name; do
  [ -z "$f_id" ] && continue
  if ls "$D/$name"*.pdf "$D/$name"*.epub "$D/$name"*.fb2 "$D/$name"*.doc "$D/$name"*.rtf "$D/$name"*.djvu >/dev/null 2>&1; then
    echo "SKIP (exists): $name" >> "$LOG"
    continue
  fi
  rm -f "$D/$name"*.part
  echo "=== $name (f/$f_id) $(date)" >> "$LOG"
  timeout 1500 python3 -u -c "
import sys; sys.path.insert(0,'tools'); import lgdl
r = lgdl.download(sys.argv[1], sys.argv[2], sys.argv[3], tries=3)
sys.exit(0 if r else 1)" "$f_id" "$D" "$name" >> "$LOG" 2>&1
  echo "rc=$? $name" >> "$LOG"
  sleep 2
done < "$Q"
echo "=== queue round DONE $(date)" >> "$LOG"