#!/usr/bin/env bash
set -euo pipefail

IMAGE="${1:-toolctrl-api:smoke}"
PORT="${DOCKER_API_SMOKE_PORT:-}"
CONTAINER_NAME="${DOCKER_API_SMOKE_CONTAINER:-toolctrl-api-runtime-smoke-$$}"
DB_CONTAINER_NAME="${DOCKER_API_SMOKE_DB_CONTAINER:-toolctrl-api-runtime-smoke-db-$$}"
NETWORK_NAME="${DOCKER_API_SMOKE_NETWORK:-toolctrl-api-runtime-smoke-$$}"
TRANSPORT="${DOCKER_API_SMOKE_TRANSPORT:-host}"
SMOKE_REVISION="${DOCKER_API_SMOKE_REVISION:-}"
HEALTH_ATTEMPTS="${DOCKER_API_SMOKE_HEALTH_ATTEMPTS:-300}"
DB_PASSWORD="toolctrl"
DB_NAME="toolctrl"
DB_USER="toolctrl"

cleanup() {
  docker rm -f "$CONTAINER_NAME" >/dev/null 2>&1 || true
  docker rm -f "$DB_CONTAINER_NAME" >/dev/null 2>&1 || true
  docker network rm "$NETWORK_NAME" >/dev/null 2>&1 || true
}

resolve_smoke_revision() {
  if [[ -n "$SMOKE_REVISION" ]]; then
    printf "%s" "$SMOKE_REVISION"
    return
  fi

  docker image inspect -f '{{ index .Config.Labels "org.opencontainers.image.revision" }}' "$IMAGE"
}

http_status() {
  local path="$1"
  local code

  if [[ "$TRANSPORT" == "exec" ]]; then
    code="$(docker exec "$CONTAINER_NAME" node -e 'const http = require("node:http"); const [path] = process.argv.slice(1); const request = http.request({ hostname: "127.0.0.1", port: 8080, path, headers: { Host: "api.localhost" } }, (response) => { process.stdout.write(String(response.statusCode ?? "000")); response.resume(); }); request.on("error", () => process.stdout.write("000")); request.end();' "$path" || true)"
  else
    code="$(curl -s -o /dev/null -w "%{http_code}" -H "Host: api.localhost" "http://127.0.0.1:${PORT}${path}" || true)"
  fi

  if [[ -z "$code" ]]; then
    printf "000"
    return
  fi

  printf "%s" "$code"
}

http_body() {
  local path="$1"

  if [[ "$TRANSPORT" == "exec" ]]; then
    docker exec "$CONTAINER_NAME" node -e 'const http = require("node:http"); const [path] = process.argv.slice(1); const request = http.request({ hostname: "127.0.0.1", port: 8080, path, headers: { Host: "api.localhost" } }, (response) => { let body = ""; response.setEncoding("utf8"); response.on("data", (chunk) => { body += chunk; }); response.on("end", () => process.stdout.write(body)); }); request.on("error", () => process.exit(1)); request.end();' "$path"
  else
    curl --fail --silent --show-error -H "Host: api.localhost" "http://127.0.0.1:${PORT}${path}"
  fi
}

expect_status() {
  local path="$1"
  local expected="$2"
  local actual

  actual="$(http_status "$path")"
  if [[ "$actual" != "$expected" ]]; then
    echo "Expected ${path} to return ${expected}, got ${actual}" >&2
    docker logs "$CONTAINER_NAME" >&2 || true
    exit 1
  fi
}

expect_health_revision() {
  local path="$1"
  local body
  local actual

  body="$(http_body "$path")"
  actual="$(printf "%s" "$body" | node -e 'const fs = require("node:fs"); try { const payload = JSON.parse(fs.readFileSync(0, "utf8")); process.stdout.write(payload.revision || ""); } catch { process.exit(1); }')"
  if [[ "$actual" != "$SMOKE_REVISION" ]]; then
    echo "Expected ${path} revision ${SMOKE_REVISION}, got ${actual:-<empty>}" >&2
    docker logs "$CONTAINER_NAME" >&2 || true
    exit 1
  fi
}

expect_openapi_json() {
  local path="$1"
  local body

  body="$(http_body "$path")"
  printf "%s" "$body" | node -e '
const fs = require("node:fs");
const payload = JSON.parse(fs.readFileSync(0, "utf8"));
if (typeof payload.openapi !== "string") throw new Error("missing openapi version");
if (!payload.paths || !payload.paths["/v1/health"] || !payload.paths["/v1/entities/{entity}/rows"]) {
  throw new Error("missing expected OpenAPI paths");
}
'
}

trap cleanup EXIT
cleanup
SMOKE_REVISION="$(resolve_smoke_revision)"
if [[ -z "$SMOKE_REVISION" || "$SMOKE_REVISION" == "<no value>" || "$SMOKE_REVISION" == "unknown" ]]; then
  echo "Image ${IMAGE} does not expose a concrete org.opencontainers.image.revision; build with --build-arg APP_REVISION or set DOCKER_API_SMOKE_REVISION explicitly" >&2
  exit 1
fi
docker network create "$NETWORK_NAME" >/dev/null

docker run -d --name "$DB_CONTAINER_NAME" --network "$NETWORK_NAME" --network-alias db -p 127.0.0.1::5432 \
  -e POSTGRES_USER="$DB_USER" \
  -e POSTGRES_PASSWORD="$DB_PASSWORD" \
  -e POSTGRES_DB="$DB_NAME" \
  postgres:16-alpine >/dev/null

CONTAINER_DATABASE_URL="postgresql://${DB_USER}:${DB_PASSWORD}@db:5432/${DB_NAME}?schema=public"

for attempt in $(seq 1 30); do
  if docker exec "$DB_CONTAINER_NAME" pg_isready -U "$DB_USER" -d "$DB_NAME" >/dev/null 2>&1; then
    break
  fi

  if [[ "$attempt" == "30" ]]; then
    echo "Postgres smoke database did not become ready" >&2
    docker logs "$DB_CONTAINER_NAME" >&2 || true
    exit 1
  fi

  sleep 1
done

docker run --rm --network "$NETWORK_NAME" \
  -e NODE_ENV=production \
  -e DATABASE_URL="$CONTAINER_DATABASE_URL" \
  --entrypoint /bin/sh \
  "$IMAGE" -lc 'cd /myapp && pnpm exec prisma migrate deploy --config prisma.config.ts' >/dev/null

publish_args=(-p 127.0.0.1::8080)
if [[ -n "$PORT" ]]; then
  publish_args=(-p "${PORT}:8080")
fi

docker run -d --name "$CONTAINER_NAME" --network "$NETWORK_NAME" "${publish_args[@]}" \
  -e NODE_ENV=production \
  -e PORT=8080 \
  -e API_PORT=8080 \
  -e APP_NAME=ToolCTRL \
  -e APP_BASE_DOMAIN=localhost \
  -e WEB_APP_HOST=app.localhost \
  -e ADMIN_APP_HOST=admin.localhost \
  -e API_HOST=api.localhost \
  -e APP_PROTOCOL=http \
  -e DATABASE_URL="$CONTAINER_DATABASE_URL" \
  -e SESSION_SECRET='deploy-smoke-session-secret-minimum-32' \
  -e CRYPTO_SECRET='deploy-smoke-crypto-secret-minimum-32' \
  -e JWT_SECRET='deploy-smoke-jwt-secret-minimum-32' \
  -e API_ACCESS_TOKEN='deploy-smoke-api-access-token-minimum-32' \
  -e ANALYTICS_TOKEN='deploy-smoke-analytics-token-minimum-32' \
  "$IMAGE" >/dev/null

if [[ -z "$PORT" ]]; then
  PORT="$(docker port "$CONTAINER_NAME" 8080/tcp | awk -F: 'NR == 1 { print $NF }')"
fi

for attempt in $(seq 1 "$HEALTH_ATTEMPTS"); do
  if [[ "$(http_status /healthz)" == "200" ]]; then
    break
  fi

  if [[ "$attempt" == "$HEALTH_ATTEMPTS" ]]; then
    echo "API container did not become healthy on port ${PORT} after ${HEALTH_ATTEMPTS}s" >&2
    docker logs "$CONTAINER_NAME" >&2 || true
    exit 1
  fi

  sleep 1
done

expect_status /healthz 200
expect_health_revision /healthz
expect_status /v1/docs 200
expect_status /v1/openapi.json 200
expect_openapi_json /v1/openapi.json
expect_status /readyz 200

echo "Docker API runtime smoke passed for ${IMAGE}"