#!/bin/bash
# I, Ian Kelling, follow the GNU license recommendations at
# https://www.gnu.org/licenses/license-recommendations.en.html. They
# recommend that small programs, < 300 lines, be licensed under the
# Apache License 2.0. This file contains or is part of one or more small
# programs. If a small program grows beyond 300 lines, I plan to switch
# its license to GPL.

# Copyright 2024 Ian Kelling

# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at

#     http://www.apache.org/licenses/LICENSE-2.0

# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.


if [[ -e /tmp/fsfsys-recent ]]; then
  tmp=$(mktemp)
  touch --date="1 minutes ago" "$tmp"
  cooldown=false
  if [[ /tmp/fsfsys-recent -nt "$tmp" ]]; then
    cooldown=true
  fi
  rm -f "$tmp"
  if $cooldown; then
    echo "error: wait 1 minute between requests"
    exit 0
  fi

  tmp2=$(mktemp)
  touch --date="5 minute ago" "$tmp2"
  cache=false
  if [[ /tmp/fsfsys-recent -nt "$tmp2" ]]; then
    cache=true
  fi
  rm -f "$tmp2"
  if $cache; then
    cat /tmp/fsfsys-recent
    exit 0
  fi
fi

d='/var/lib/znc/moddata/log/iank/libera/#fsfsys'
date0=$(date +%Y-%m-%d)
date1=$(date +%Y-%m-%d -d yesterday)
f0="$d/$date0.log"
f1="$d/$date1.log"
url=$( { sed "s/^/$date1 /" $f1; sed "s/^/$date0 /" $f0; } | /a/opt/fpaste/fpaste -x 60 |& grep -i '^http' | sed -r 's,/view/,/view/raw/,' )
notice='This url is not public and this message does not not imply permission to share it publicly. It expires in 60 minutes. Related: the "Public logging" section at https://libera.chat/policies/.'
printf "%s %s\n" "$url" "$notice" | tee /tmp/fsfsys-recent