#!/usr/bin/env bash
# Build release Flutter web for VM hosting.
# API URL: shell API_BASE_URL > hosting/hosting.env API_PUBLIC_URL >
#          server/.env API_BASE_URL > default https://cyberhybridhub.com
set -euo pipefail

ROOT="$(cd "$(dirname "${BASH_SOURCE[0]}")/.." && pwd)"
cd "$ROOT"

if [ -f "$ROOT/scripts/flutter-env.sh" ]; then
  # shellcheck source=/dev/null
  source "$ROOT/scripts/flutter-env.sh"
fi

if ! command -v flutter >/dev/null 2>&1; then
  echo "flutter not found. Install Flutter or set FLUTTER_ROOT, then:" >&2
  echo "  source scripts/flutter-env.sh" >&2
  exit 1
fi

_CLI_OVERRIDE="${API_BASE_URL:-}"

_load_env_api_url() {
  local file=$1
  [ -f "$file" ] || return 0
  local line
  line="$(grep -E '^API_BASE_URL=' "$file" 2>/dev/null | tail -1 || true)"
  [ -n "$line" ] || return 0
  line="${line#API_BASE_URL=}"
  line="${line%\"}"
  line="${line#\"}"
  printf '%s' "$line"
}

API_BASE_URL="https://cyberhybridhub.com"

# hosting.env wins over server/.env for web builds (server may still say :3000).
if [ -f "$ROOT/hosting/hosting.env" ]; then
  # shellcheck source=/dev/null
  source "$ROOT/hosting/hosting.env"
  API_BASE_URL="${API_PUBLIC_URL:-$API_BASE_URL}"
fi

_server_api="$(_load_env_api_url "$ROOT/server/.env")"
if [ -n "$_server_api" ] && [ ! -f "$ROOT/hosting/hosting.env" ]; then
  API_BASE_URL="$_server_api"
fi

if [ -n "$_CLI_OVERRIDE" ]; then
  API_BASE_URL="$_CLI_OVERRIDE"
fi

if [[ "$API_BASE_URL" == http://* ]] || [[ "$API_BASE_URL" == *:3000* ]]; then
  echo "ERROR: Production web must not use HTTP or port 3000 in API_BASE_URL." >&2
  echo "  Got: $API_BASE_URL" >&2
  echo "  Set API_PUBLIC_URL=https://cyberhybridhub.com in hosting/hosting.env" >&2
  exit 1
fi

echo "Building release web with API_BASE_URL=$API_BASE_URL"
_flutter_pub_flag=()
if [ "${SKIP_PUB_GET:-0}" = "1" ]; then
  _flutter_pub_flag=(--no-pub)
  echo "SKIP_PUB_GET=1 — not running flutter pub get"
fi
flutter build web --release "${_flutter_pub_flag[@]}" \
  --dart-define=API_BASE_URL="$API_BASE_URL" \
  --dart-define=AUTH_VERBOSE_LOG=true

if [ -x "$ROOT/scripts/copy_flutter_js_source_map.sh" ]; then
  "$ROOT/scripts/copy_flutter_js_source_map.sh" "$ROOT/build/web" || true
fi

if [ -x "$ROOT/scripts/stamp-web-cache-bust.sh" ]; then
  "$ROOT/scripts/stamp-web-cache-bust.sh"
fi

echo "Done: $ROOT/build/web"