#!/usr/bin/env bash

# annex-ec: Use erasure codes for more efficient storage use in git-annex
# Copyright (C) 2026  Scott Worley

# This program is free software: you can redistribute it and/or modify
# it under the terms of the GNU Affero General Public License as
# published by the Free Software Foundation, either version 3 of the
# License, or (at your option) any later version.

set -euo pipefail

die() {
  echo "$*" >&2
  exit 1
}

check_one_group() {
  local where_data
  where_data=$(set +e; git annex whereis --json "${recovery_set_files[@]}"; set -e)
  missing_data=$(jq -r 'if .whereis == [] then .file else empty end' <<< "$where_data")
  if [[ "$missing_data" ]];then
    xargs -d \\n annex-ec-recover <<< "$missing_data"
  fi
}

check_all_groups() {
  recovery_set_name=
  recovery_set_files=()
  while IFS= read -r line;do
    if [[ "$line" == ' '* ]];then
      recovery_set_files+=( "${line# }" )
    else
      if [[ "$recovery_set_name" ]];then
        check_one_group
      fi
      recovery_set_name=$line
      recovery_set_files=()
    fi
  done < ec/.meta
  check_one_group
}

check_all_groups