#!/usr/bin/env bash
set -euo pipefail
SCRIPT_DIR="$(cd "$(dirname "$0")" && pwd)"
SKILL_ROOT="$(dirname "$SCRIPT_DIR")"
source "$SCRIPT_DIR/_common.sh"

: "${BACKUP_SKILL_DIR:=}"
: "${RUN_DIR:=}"
: "${DR_TARGET_BASE:=$HOME/recovery-drills}"
: "${AGE_IDENTITY_FILE:=}"

main() {
  confirm_gate
  [[ -n "$BACKUP_SKILL_DIR" ]] || die "BACKUP_SKILL_DIR is required."
  [[ -n "$AGE_IDENTITY_FILE" ]] || die "AGE_IDENTITY_FILE is required."

  local run_dir; run_dir="$(resolve_run_dir "$BACKUP_SKILL_DIR" "$RUN_DIR")"
  local enc="$run_dir/archive.tar.gz.age"
  [[ -f "$enc" ]] || die "Missing: $enc"

  local ts; ts="$(date -Iseconds | tr ':' '-')"
  local target="$DR_TARGET_BASE/restore_$ts"
  mkdir -p "$target"

  local decrypted="$target/archive.tar.gz"
  log_info "Decrypting -> $decrypted"
  age -d -i "$AGE_IDENTITY_FILE" -o "$decrypted" "$enc"

  mkdir -p "$target/extract"
  log_info "Extracting -> $target/extract"
  tar -xzf "$decrypted" -C "$target/extract"

  echo "$target" > "$SKILL_ROOT/outputs/last_drill_target.txt"
  log_info "Saved drill target pointer: $SKILL_ROOT/outputs/last_drill_target.txt"
  log_info "Next: ./scripts/30_verify_restored.sh"
}

main "$@"