#!/bin/sh
# Assemble runnable PHP backend from ac-workspace submodules (overlay on legacy seed).
set -eu
ROOT="$(cd "$(dirname "$0")/.." && pwd)"
# shellcheck source=/dev/null
. "$ROOT/scripts/lib/common.sh"
load_cluster_env

WS="${AC_WORKSPACE_ROOT:-/var/www/ac/workspace}"
LEGACY="${APP_ROOT}/android_cast/examples/crash_reporter/backend"
COMPOSED="${COMPOSE_BACKEND:-/var/www/ac/composed/backend}"
PLATFORM_ROOT="${AC_PLATFORM_ROOT:-/var/www/ac/platform}"
APP_PASS="$(read_cred mariadb_app password)"
DB_HOST="$PRIMARY_DB_HOST"
if is_primary_node; then
  DB_HOST=127.0.0.1
fi

[ -d "$WS/.git" ] || die "missing ac-workspace at $WS (run deploy-ac-workspace.sh first)"

overlay_src() {
  _repo="$1"
  _dir="${WS}/${_repo}/src"
  [ -d "$_dir" ] || { log "skip src ${_repo} (no src/)"; return 0; }
  log "overlay src ${_repo}"
  cp -a "$_dir"/. "${COMPOSED}/src/"
}

overlay_api() {
  _repo="$1"
  _dir="${WS}/${_repo}/public/api"
  [ -d "$_dir" ] || return 0
  log "overlay api ${_repo}"
  mkdir -p "${COMPOSED}/public/api"
  cp -a "$_dir"/. "${COMPOSED}/public/api/"
}

overlay_views() {
  _repo="$1"
  _dir="${WS}/${_repo}/views"
  [ -d "$_dir" ] || return 0
  log "overlay views ${_repo}"
  mkdir -p "${COMPOSED}/views"
  cp -a "$_dir"/. "${COMPOSED}/views/"
}

if [ ! -f "${COMPOSED}/public/index.php" ] || [ "${FORCE_COMPOSE_SEED:-0}" = "1" ]; then
  [ -d "$LEGACY/public" ] || die "legacy backend missing at $LEGACY — run deploy-app.sh first"
  log "seed composed backend from legacy ${LEGACY}"
  mkdir -p "$(dirname "$COMPOSED")"
  rm -rf "$COMPOSED"
  mkdir -p "$COMPOSED"
  cp -a "${LEGACY}/." "$COMPOSED/"
fi

mkdir -p "$PLATFORM_ROOT"
if [ -d "${WS}/ac-platform-php/platform" ]; then
  log "sync platform helpers → ${PLATFORM_ROOT}"
  cp -a "${WS}/ac-platform-php/platform/." "$PLATFORM_ROOT/"
fi

if [ -d "${WS}/ac-platform-web/assets" ]; then
  log "sync platform-web assets"
  mkdir -p "${COMPOSED}/public/assets"
  cp -a "${WS}/ac-platform-web/assets/." "${COMPOSED}/public/assets/"
  if [ -f "${WS}/ac-platform-web/src/AnalyticsHead.php" ]; then
    cp -a "${WS}/ac-platform-web/src/AnalyticsHead.php" "${COMPOSED}/src/"
  fi
fi

overlay_src ac-platform-php
overlay_src ac-ms-identity
overlay_src ac-ms-rbac
overlay_src ac-ms-devices
overlay_src ac-ms-issues
overlay_src ac-ms-tickets
overlay_src ac-ms-graphs
overlay_src ac-ms-remote-access

overlay_api ac-ms-identity
overlay_api ac-ms-rbac
overlay_api ac-ms-devices
overlay_api ac-ms-issues
overlay_api ac-ms-tickets
overlay_api ac-ms-graphs
overlay_api ac-ms-remote-access

overlay_views ac-be-auth
overlay_views ac-be-issues
overlay_views ac-be-tickets
overlay_views ac-be-graphs
overlay_views ac-be-remote-access
overlay_views ac-be-access

ISSUES_BASE="${APP_BASE_PATH:-/app/androidcast_project/issues}"
mkdir -p "${COMPOSED}/config"
log "write composed config.php base_path=${ISSUES_BASE}"
cat > "${COMPOSED}/config/config.php" <<PHP
<?php
return [
    'app_name' => 'Android Cast Issues',
    'base_path' => '${ISSUES_BASE}',
    'db' => [
        'driver' => 'mariadb',
        'sqlite_path' => __DIR__ . '/../data/crashes.sqlite',
        'mysql' => [
            'host' => '${DB_HOST}',
            'port' => ${PRIMARY_DB_PORT},
            'socket' => '',
            'database' => 'androidcast_crashes',
            'username' => 'androidcast',
            'password' => '${APP_PASS}',
            'charset' => 'utf8mb4',
        ],
    ],
    'session_name' => 'ac_crash_sess',
    'session_cookie_path' => '${APP_HUB_PATH}',
    'debug' => true,
    'rbac' => ['default_company_slug' => 'default', 'default_company_id' => 1],
    'analytics' => ['enabled' => false, 'measurement_id' => '', 'debug' => false],
    'remote_access' => [
        'wg_endpoint' => '',
        'wg_server_public_key' => '',
        'provision_peers' => false,
        'require_wg_tools' => false,
    ],
    'auth' => [
        'encryption_key' => 'lab-cluster-dev-32-char-min-secret!!',
        'max_attempts' => 8,
        'lockout_window_minutes' => 15,
    ],
    'url_shortener' => [
        'enabled' => true,
        'public_base' => '${SHORT_LINKS_PUBLIC_BASE}',
        'db' => [
            'mysql' => [
                'host' => '${DB_HOST}',
                'port' => ${PRIMARY_DB_PORT},
                'socket' => '',
                'database' => 'url_shortener',
                'username' => 'androidcast',
                'password' => '${APP_PASS}',
                'charset' => 'utf8mb4',
            ],
        ],
    ],
];
PHP

if command -v composer >/dev/null 2>&1; then
  log "composer dump-autoload (optional)"
  cat > "${COMPOSED}/composer.json" <<'JSON'
{
  "name": "androidcast/lab-composed-backend",
  "require": { "php": ">=8.1" },
  "autoload": { "classmap": ["src/"] }
}
JSON
  (cd "$COMPOSED" && composer dump-autoload -o 2>/dev/null) || true
fi

chown -R nginx:nginx "$(dirname "$COMPOSED")" "$PLATFORM_ROOT" 2>/dev/null || true
log "compose-lab-backend_ok $(host_short) → ${COMPOSED}"