#!/bin/sh
set -eu

cd "$(dirname "$0")/.."

compose="docker compose --profile external"
marker="smoke-$(date +%s)-$$"
headers=""
# Avoid colliding with a developer's existing service. Production/developer Compose still
# defaults to 8080; a published port of 0 asks Docker for a free ephemeral smoke port.
export THOTH_HTTP_PORT=${THOTH_HTTP_PORT:-0}

cleanup() {
  if [ -n "$headers" ]; then rm -f "$headers"; fi
  # Deliberately omit --volumes: an ordinary smoke run must preserve user data.
  $compose down --remove-orphans >/dev/null 2>&1 || true
}
trap cleanup EXIT HUP INT TERM

$compose config --quiet
$compose up --build --wait core frontend
published=$($compose port frontend 8080)
http_port=${published##*:}

curl --fail --silent --show-error "http://127.0.0.1:$http_port/health" >/dev/null

# The nginx proxy must preserve streaming semantics for the backend SSE endpoint.
headers=$(mktemp)
curl --fail --silent --show-error --max-time 2 --dump-header "$headers" \
  "http://127.0.0.1:$http_port/api/sessions/docker-smoke/events" \
  >/dev/null 2>&1 || status=$?
status=${status:-0}
if [ "$status" -ne 0 ] && [ "$status" -ne 28 ]; then
  echo "SSE probe failed with curl status $status" >&2
  exit "$status"
fi
grep -qi '^content-type: text/event-stream' "$headers"
grep -qi '^cache-control: no-cache' "$headers"
rm -f "$headers"
headers=""

# Write through the named volume, restart the application, and prove persistence.
$compose exec -T core sh -c 'printf "%s\n" "$1" > /data/.compose-smoke-marker' sh "$marker"
$compose restart core
$compose up --wait core frontend
persisted=$($compose exec -T core sh -c 'cat /data/.compose-smoke-marker')
[ "$persisted" = "$marker" ]
$compose exec -T core rm -f /data/.compose-smoke-marker

curl --fail --silent --show-error "http://127.0.0.1:$http_port/health" >/dev/null
echo "Compose health, SSE proxy, and restart persistence checks passed."