orderPRO/.paul/codebase/ARCHITECTURE.md

Architecture

Request Flow

HTTP Request
  → public/index.php
  → bootstrap/app.php         (loads config, registers PDO, services)
  → Application::boot()        (loads routes/web.php)
  → Router::dispatch(Request)  (matches URL, runs middleware pipeline)
  → [Middleware]               (AuthMiddleware, ApiKeyMiddleware)
  → Controller::method()       (parse input → call repository/service → render)
  → Template::render()         (PHP native, layout composition)
  → Response::send()

Layer Map

Layer	Location	Responsibility
Entry	public/index.php	Bootstrap only
Routes	routes/web.php (581 lines)	All ~80 routes; manual DI wiring
Core	src/Core/ (25 files)	Framework infrastructure
Controllers	src/Modules/*/Controller.php	Request parsing → response
Services	src/Modules/*/Service.php	Business logic
Repositories	src/Modules/*/Repository.php	PDO data access (34+ repos)
Views	resources/views/	PHP templates with $e() / $t()
Components	resources/views/components/	Reusable UI blocks

Module Inventory (src/Modules/)

Module	Files	Key Classes	Purpose
Auth	3	AuthController, AuthMiddleware, AuthService	Login/logout, session
Users	2	UserController, UserRepository	User CRUD
Orders	3	OrdersController (1187 LOC), OrdersRepository (1221 LOC)	Order list, detail, status, payment, correlated subquery for return-risk
Shipments	17	ShipmentController, provider services + tracking services	Shipment creation, label download, tracking polling
Accounting	5	AccountingController, ReceiptService, ReceiptRepository	Receipts, invoices, PDF, Excel export
Email	3	EmailSendingService, VariableResolver, AttachmentGenerator	Template-based email with PDF attachments
Automation	6	AutomationService (834 LOC), AutomationRepository, AutomationExecutionLogRepository	Event→condition→action rules, email triggers
Settings	51+	Integration controllers, OAuth clients, API clients, mappers	Allegro/shopPRO/Apaczka/InPost config, status mappings
Cron	12	CronRepository, CronHandlerFactory, handler classes	Scheduled imports, syncs, token refresh
Printing	4	PrintApiController, PrintJobRepository, ApiKeyMiddleware	REST API for Windows print client
Statistics	2	OrdersStatisticsController, OrdersStatisticsRepository	Dashboard aggregates
Info	1	InfoController	Health check

Key Data Flows

Order Lifecycle

1. Import — Cron handler → API client → OrderImportService → OrdersRepository::insertOrder() → AutomationService::executeForNewOrder()
2. Status update — OrdersController::updateStatus() → OrdersRepository::updateStatus() → automation check
3. Status sync — Cron → AllegroStatusSyncService / ShopproStatusSyncService → carrier API

Shipment Flow

1. Create — ShipmentController::create() → ShipmentProviderRegistry → carrier ShipmentService::createShipment() → ShipmentPackageRepository::insert()
2. Track — Cron ShipmentTrackingHandler → ShipmentTrackingRegistry → carrier tracking API → ShipmentPackageRepository::updateDeliveryStatus()

Receipt / Invoice

1. Generate — ReceiptController::store() → ReceiptService::generateReceipt() → ReceiptRepository::insert() + Dompdf PDF
2. Email — EmailSendingService::send() → VariableResolver::resolve() → AttachmentGenerator::generatePdf() → PHPMailer SMTP

Automation Rules

1. Setup — AutomationController → AutomationRepository::insertRule()
2. Trigger — AutomationService::executeForOrder() → evaluates trigger (order_status_changed, order_status_aged) → runs action (send email, update status)
3. Log — AutomationExecutionLogRepository tracks every run

Cron Jobs

Handler	Task
AllegroOrdersImportHandler	Fetch new Allegro orders
AllegroStatusSyncHandler	Push status changes to Allegro
AllegroTokenRefreshHandler	OAuth token refresh (24h expiry)
ShopproOrdersImportHandler	Fetch new shopPRO orders
ShopproStatusSyncHandler	Push status to shopPRO
ShopproPaymentStatusSyncHandler	Sync payment statuses
ShipmentTrackingHandler	Poll carrier tracking APIs
OrderStatusAgedHandler	Trigger automation for stuck statuses
AutomationHistoryCleanupHandler	Purge old automation logs

Dependency Injection

Manual constructor injection in routes/web.php — no DI container library. Example:

$ordersController = new OrdersController(
    $template, $translator, $auth,
    $app->orders(), $shipmentPackageRepository,
    $receiptRepository, $receiptConfigRepository, ...
);

All production classes are final — prevents accidental inheritance.

Directory Structure

bootstrap/         app.php (service wiring, config loading)
bin/               migrate.php, cron.php (CLI entry points)
config/            app.php, database.php
database/
  migrations/      84 SQL files (YYYYMMDD_NNNNNN_description.sql)
  drafts/          WIP migrations
public/
  index.php        HTTP entry point
  .htaccess        Apache rewrite rules
  assets/css/      Compiled CSS (app.css, login.css, modules/)
  assets/js/       jquery-alerts.js, global-search.js, automation-form.js
resources/
  views/           PHP templates by module + components/ layouts/
  scss/            SCSS sources (app.scss, login.scss, modules/_*.scss)
  modules/         jquery-alerts JS+SCSS source
  lang/pl/         Polish translations
routes/
  web.php          All routes (581 lines)
src/
  Core/            Framework (25 files)
  Modules/         13 feature modules (~200+ PHP files)
storage/
  logs/            app.log
  sessions/        PHP session files
  cache/           PHPUnit cache, etc.
tests/
  Unit/            PHPUnit tests (7+ service test files)
  bootstrap.php    PSR-4 autoloader for tests