#!/usr/bin/env bash
# Wait for an active one-month request, then start the full resumable range.
set -u -o pipefail

project_root=$(cd "$(dirname "${BASH_SOURCE[0]}")/.." && pwd)
wait_pid=${1:-}
log_dir="$project_root/outputs/logs"
supervisor_log="$log_dir/ecmwf_baseline_supervisor.log"
mkdir -p "$log_dir"

if [[ "$wait_pid" =~ ^[1-9][0-9]*$ ]]; then
  while kill -0 "$wait_pid" 2>/dev/null; do
    command_line=$(tr '\0' ' ' <"/proc/$wait_pid/cmdline" 2>/dev/null || true)
    if [[ "$command_line" != *"dr_gcm.download_ecmwf_baseline --init 1981-01"* ]]; then
      printf '%s PID %s no longer matches initial request; continuing.\n' \
        "$(date -Is)" "$wait_pid" >>"$supervisor_log"
      break
    fi
    printf '%s Waiting for initial request PID=%s.\n' \
      "$(date -Is)" "$wait_pid" >>"$supervisor_log"
    sleep 60
  done
fi

printf '%s Starting baseline range 1981-01..2020-12 with one worker.\n' \
  "$(date -Is)" >>"$supervisor_log"
exec bash "$project_root/scripts/download_ecmwf_baseline.sh" 1981-01 2020-12 1