#!/usr/bin/env bash
# Restart the backend: kill the whole uvicorn process tree on port 8000, then start --reload.
# Log goes to repo root backend_run.log.
# Usage (Git Bash, from repo root):  bash backend/restart_backend.sh
set -u

# Always run relative to this script, so it works from any cwd.
cd "$(dirname "$0")" || exit 1

# 1) Kill every python process running THIS backend. uvicorn --reload on Windows
#    spawns three processes (top launcher -> reloader -> worker); killing only the
#    port listener leaves an orphan reloader that can later rebind :8000 and fight
#    the new instance. Match the command line to catch launcher + reloader, then
#    taskkill /T tears down each of their descendant trees (the worker included).
pids=$(wmic process where "name='python.exe' and commandline like '%uvicorn app.main%'" \
        get ProcessId 2>/dev/null \
      | tr -d '\r' \
      | grep -Eo '[0-9]+' \
      | sort -u)

if [ -n "$pids" ]; then
  for pid in $pids; do
    echo "kill old backend PID $pid"
    # //PID double slash stops Git Bash from turning /PID into a path.
    taskkill //PID "$pid" //T //F >/dev/null 2>&1
  done
  sleep 2
fi

# 2) Clear SSLKEYLOGFILE: the user env var's value has a leading U+202A control
#    char that makes asyncpg throw OSError [Errno 22] on connect.
unset SSLKEYLOGFILE

# 3) Start, redirecting to repo root backend_run.log (--reload for hot reload).
echo "starting uvicorn, log: ../backend_run.log"
exec .venv/Scripts/python.exe -m uvicorn app.main:app --reload --port 8000 > ../backend_run.log 2>&1