#!/bin/bash
set -euo pipefail

IMAGE="$1"
FAILED=0
PASSED=0

TMPDIR="$(mktemp -d)"
CONTAINER_NAME="test-$(echo "$IMAGE" | tr ':/' '-')-$$"
trap 'docker rm -f "$CONTAINER_NAME" 2>/dev/null; rm -rf "$TMPDIR"' EXIT

DOCKER_GW=$(docker network inspect bridge --format '{{range .IPAM.Config}}{{.Gateway}}{{end}}')
BASE_URL="http://${DOCKER_GW}:3000"

assert_eq() {
  local desc="$1" expected="$2" actual="$3"
  if [ "$expected" = "$actual" ]; then
    echo "PASS: $desc"
    PASSED=$((PASSED + 1))
  else
    echo "FAIL: $desc (expected '$expected', got '$actual')"
    FAILED=$((FAILED + 1))
  fi
}

docker run -d --name "$CONTAINER_NAME" -p 3000:3000 "$IMAGE"

echo "Waiting for container..."
READY=false
for i in $(seq 1 30); do
  if curl -s -o /dev/null "$BASE_URL/"; then
    echo "Container ready (attempt $i)"
    READY=true
    break
  fi
  sleep 2
done

if [ "$READY" = false ]; then
  echo "Container did not become ready within 60s"
  echo "=== Container logs ==="
  docker logs "$CONTAINER_NAME" 2>&1 || true
  exit 1
fi

STATUS=$(curl -s -o "$TMPDIR/body" -w '%{http_code}' "$BASE_URL/")
echo "HTTP status: $STATUS"
assert_eq "HTTP 200" "200" "$STATUS"

echo ""
echo "$PASSED/$((PASSED + FAILED)) tests passed"
if [ "$FAILED" -gt 0 ]; then
  exit 1
fi