#!/usr/bin/env bash
# Shared helpers. Sourced by every script in this directory.
#
# Two traps are baked in here because both have cost real time:
#
#   * never `pkill -f spring-boot` - the pattern matches the shell that is running this
#     script and kills it. Kill by main class instead, which is what stop_app does.
#   * `mvn -o` cannot run the Boot plugin until one online build has cached it, so the first
#     run of run.sh is deliberately not offline.
set -euo pipefail

MODULE_DIR="$(cd "$(dirname "${BASH_SOURCE[0]}")/.." && pwd)"
OUTPUT_DIR="$(cd "$MODULE_DIR/.." && pwd)/docs/output"
MAIN_CLASS="PasskeysDemoApplication"
BASE_URL="${BASE_URL:-http://localhost:8080}"
APP_LOG="${APP_LOG:-/tmp/passkeys-demo.log}"

mkdir -p "$OUTPUT_DIR"

stop_app() {
  for pid in $(ps -eo pid,cmd | grep "[${MAIN_CLASS:0:1}]${MAIN_CLASS:1}" | awk '{print $1}'); do
    kill -9 "$pid" 2>/dev/null || true
  done
  # ss -lptn sometimes reports the port with no PID, so a port-based kill silently does
  # nothing and the stale process keeps serving. Wait for the port to actually close.
  for _ in $(seq 1 20); do
    curl -sf -o /dev/null "$BASE_URL/health" || return 0
    sleep 0.5
  done
}

start_app() {
  local profiles="${1:-}"
  stop_app
  cd "$MODULE_DIR"
  local args=(-B org.springframework.boot:spring-boot-maven-plugin:run)
  [ -n "$profiles" ] && args+=("-Dspring-boot.run.profiles=$profiles")
  setsid nohup mvn "${args[@]}" > "$APP_LOG" 2>&1 < /dev/null &
  for _ in $(seq 1 90); do
    curl -sf -o /dev/null "$BASE_URL/health" && { echo "started${profiles:+ with profiles: $profiles}"; return 0; }
    sleep 2
  done
  echo "the application did not come up; see $APP_LOG" >&2
  tail -40 "$APP_LOG" >&2
  return 1
}

classpath() {
  cd "$MODULE_DIR"
  [ -f target/deps.txt ] || mvn -B -q dependency:build-classpath -Dmdep.outputFile=target/deps.txt -DincludeScope=runtime
  echo "target/classes:$(cat target/deps.txt)"
}

ceremony() {
  cd "$MODULE_DIR"
  java --class-path "$(classpath)" tools/PasskeyCeremony.java "$@"
}

header() {
  echo "=============================================================================="
  echo "$1"
  echo "=============================================================================="
}