📖 Technical Overview

This section is for developers who want to understand Monitron SaaS's internals, extend it, or contribute.

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🏗️ Tech Stack

Component	Technology
Framework	Laravel 12
Admin Panel	Filament 3 (TALL Stack)
PHP Version	8.2+
Frontend	Livewire 3 + Alpine.js + Tailwind CSS
Database	MySQL 8+, PostgreSQL 13+, or SQLite
Queue	Laravel Queue (database, Redis, or SQS)
Scheduler	Laravel Console Scheduler

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📁 Directory Structure

app/
├── Console/Commands/          # Artisan commands (AI reports, predictions)
├── DTOs/                      # Data Transfer Objects
│   └── MonitorCheckResult.php # Check result DTO
├── Enums/                     # PHP 8.1 enums
│   ├── CheckInterval.php      # 10s to 1h intervals
│   ├── IncidentSeverity.php   # Info, Warning, Critical, Emergency
│   ├── IncidentStatus.php     # Investigating → Resolved
│   ├── MonitorStatus.php      # Up, Down, Degraded, Paused, Pending, Maintenance
│   ├── MonitorType.php        # 24 monitor types
│   └── NotificationChannel.php # 19 channels
├── Filament/                  # Filament admin panel
│   ├── Pages/                 # Settings, AI Settings, AI Assistant
│   ├── Resources/             # Monitor, Incident, Contact, StatusPage, NotificationLog
│   └── Widgets/               # Dashboard widgets
├── Http/
│   ├── Controllers/
│   │   ├── Api/V1/            # Heartbeat + Agent API controllers
│   │   ├── Install/           # Installation wizard
│   │   └── StatusPage/        # Public status pages
│   └── Middleware/             # Installation guard middleware
├── Jobs/                      # Queue jobs
│   ├── ProcessMonitorCheck.php # Core check processor
│   └── SendAlertNotifications.php # Notification dispatcher
├── Models/                    # 20 Eloquent models
├── Monitors/                  # Monitor handler implementations
│   ├── Contracts/MonitorHandler.php # Handler interface
│   ├── HttpMonitor.php
│   ├── PingMonitor.php
│   ├── TcpMonitor.php
│   └── ... (8 handlers)
├── Providers/                 # Service providers
│   └── MonitorServiceProvider.php # Registers all services
└── Services/                  # Business logic
    ├── AI/                    # 11 AI services
    ├── MonitorRegistry.php    # Handler registry
    └── NotificationDispatcher.php # 19 channel implementations

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🔧 Key Design Patterns

1. Handler Pattern (Monitors)

Each monitor type has a handler implementing MonitorHandler:

interface MonitorHandler {
    public function check(Monitor $monitor): MonitorCheckResult;
    public function type(): MonitorType;
}

The MonitorRegistry maps type strings to handler classes.

2. Service Pattern (Notifications)

NotificationDispatcher contains methods for each of the 19 channels, dispatched via the SendAlertNotifications job.

3. Provider-Agnostic AI

AiService abstracts four AI providers behind a single chat() / json() interface. Feature services (RootCauseAnalyzer, etc.) use AiService without knowing which provider is configured.

4. Multi-Tenancy via team_id

All resource models are scoped by team_id. Filament resources filter by the current user's team.

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🔄 Check Processing Flow

Scheduler (every 10s)
    │
    ▼
For each active monitor → shouldCheck()?
    │
    Yes → ProcessMonitorCheck::dispatch()
    │
    ▼ (Queue Worker)
MonitorRegistry::resolve(type)
    │
    ▼
Handler::check(monitor) → MonitorCheckResult
    │
    ▼
Store check, update monitor status
    │
    ▼
Status transition? (UP→DOWN or DOWN→UP)
    │
    ▼
Create/resolve Incident → SendAlertNotifications::dispatch()
    │
    ▼
NotificationDispatcher → each channel