<?php

use Monolog\Handler\NullHandler;
use Monolog\Handler\StreamHandler;
use Monolog\Handler\SyslogUdpHandler;
use Monolog\Processor\PsrLogMessageProcessor;

/**
 * Themen-Channel: eine Tagesdatei je Thema, Rotation wie `daily`.
 *
 * @return array{driver: string, path: string, level: mixed, days: mixed, replace_placeholders: bool}
 */
$topicChannel = fn (string $topic): array => [
    'driver' => 'daily',
    'path' => storage_path("logs/{$topic}.log"),
    'level' => env('LOG_LEVEL', 'debug'),
    'days' => env('LOG_DAILY_DAYS', 14),
    'replace_placeholders' => true,
];

return [

    /*
    |--------------------------------------------------------------------------
    | Default Log Channel
    |--------------------------------------------------------------------------
    |
    | This option defines the default log channel that is utilized to write
    | messages to your logs. The value provided here should match one of
    | the channels present in the list of "channels" configured below.
    |
    */

    'default' => env('LOG_CHANNEL', 'stack'),

    /*
    |--------------------------------------------------------------------------
    | Deprecations Log Channel
    |--------------------------------------------------------------------------
    |
    | This option controls the log channel that should be used to log warnings
    | regarding deprecated PHP and library features. This allows you to get
    | your application ready for upcoming major versions of dependencies.
    |
    */

    'deprecations' => [
        'channel' => env('LOG_DEPRECATIONS_CHANNEL', 'null'),
        'trace' => env('LOG_DEPRECATIONS_TRACE', false),
    ],

    /*
    |--------------------------------------------------------------------------
    | Log Channels
    |--------------------------------------------------------------------------
    |
    | Here you may configure the log channels for your application. Laravel
    | utilizes the Monolog PHP logging library, which includes a variety
    | of powerful log handlers and formatters that you're free to use.
    |
    | Available drivers: "single", "daily", "slack", "syslog",
    |                    "errorlog", "monolog", "custom", "stack"
    |
    */

    'channels' => [

        'stack' => [
            'driver' => 'stack',
            'channels' => explode(',', env('LOG_STACK', 'daily')),
            'ignore_exceptions' => false,
        ],

        'single' => [
            'driver' => 'single',
            'path' => storage_path('logs/laravel.log'),
            'level' => env('LOG_LEVEL', 'debug'),
            'replace_placeholders' => true,
        ],

        'daily' => [
            'driver' => 'daily',
            'path' => storage_path('logs/laravel.log'),
            'level' => env('LOG_LEVEL', 'debug'),
            'days' => env('LOG_DAILY_DAYS', 14),
            'replace_placeholders' => true,
        ],

        /*
        |----------------------------------------------------------------------
        | Themen-Channels (je Thema eine Tagesdatei)
        |----------------------------------------------------------------------
        |
        | Fachliche Meldungen landen nicht im allgemeinen `laravel-*.log`,
        | sondern über `Log::channel('…')` in einer eigenen Tagesdatei unter
        | storage/logs/<thema>-YYYY-MM-DD.log. Rotation wie `daily`
        | (LOG_DAILY_DAYS). Das allgemeine Log behält Exceptions, `report()`
        | und alles, was keinem Thema zugeordnet ist.
        |
        |   billing     Stripe-Webhooks, Checkout, Tarifwechsel, STR-/MAN-
        |               Rechnungen, USt-ID, Erfüllung bezahlter Vorgänge
        |   ki          KI-Klassifikation, Content-Score, Profil- und
        |               Vorprüfung, Auto-Veröffentlichung
        |   monitoring  Betriebs-Alerts (OperationalAlert): fehlgeschlagene
        |               Scheduler-Tasks/Queue-Jobs, Mail-Breaker, Bounces
        |   market      Kursdaten-Abruf (market:refresh)
        |   csp         CSP-Meldungen der Browser (Melde-Modus)
        |   spam        Spamschutz: abgewiesene und ungeprüfte Formulare
        |   admin_slow  langsame Admin-Requests (eigene Schwellen/Env-Werte)
        |
        */

        'billing' => $topicChannel('billing'),

        'ki' => $topicChannel('ki'),

        'monitoring' => $topicChannel('monitoring'),

        'market' => $topicChannel('market'),

        // CSP-Meldungen der Browser (Melde-Modus, CspReportController).
        'csp' => $topicChannel('csp'),

        // Spamschutz: abgewiesene und ungeprüfte Formulare, nur Grund und
        // Netz-Präfix (TurnstileVerifier, ContactController).
        'spam' => $topicChannel('spam'),

        'admin_slow' => [
            'driver' => 'daily',
            'path' => storage_path('logs/admin-slow.log'),
            'level' => env('ADMIN_SLOW_REQUEST_LOG_LEVEL', 'warning'),
            'days' => env('ADMIN_SLOW_REQUEST_LOG_DAYS', 14),
            'replace_placeholders' => true,
        ],

        /*
        | Testsuite: phpunit.xml setzt LOG_CHANNEL=testing, und tests/TestCase.php
        | biegt die Themen-Channels ebenfalls hierher um — Tests schreiben damit
        | ausschließlich nach testing-YYYY-MM-DD.log und verwässern weder das
        | allgemeine noch die Themen-Logs. Kurze Aufbewahrung, reine Diagnose.
        */

        'testing' => [
            'driver' => 'daily',
            'path' => storage_path('logs/testing.log'),
            'level' => env('LOG_LEVEL', 'debug'),
            'days' => 3,
            'replace_placeholders' => true,
        ],

        'slack' => [
            'driver' => 'slack',
            'url' => env('LOG_SLACK_WEBHOOK_URL'),
            'username' => env('LOG_SLACK_USERNAME', 'Laravel Log'),
            'emoji' => env('LOG_SLACK_EMOJI', ':boom:'),
            'level' => env('LOG_LEVEL', 'critical'),
            'replace_placeholders' => true,
        ],

        'papertrail' => [
            'driver' => 'monolog',
            'level' => env('LOG_LEVEL', 'debug'),
            'handler' => env('LOG_PAPERTRAIL_HANDLER', SyslogUdpHandler::class),
            'handler_with' => [
                'host' => env('PAPERTRAIL_URL'),
                'port' => env('PAPERTRAIL_PORT'),
                'connectionString' => 'tls://'.env('PAPERTRAIL_URL').':'.env('PAPERTRAIL_PORT'),
            ],
            'processors' => [PsrLogMessageProcessor::class],
        ],

        'stderr' => [
            'driver' => 'monolog',
            'level' => env('LOG_LEVEL', 'debug'),
            'handler' => StreamHandler::class,
            'formatter' => env('LOG_STDERR_FORMATTER'),
            'with' => [
                'stream' => 'php://stderr',
            ],
            'processors' => [PsrLogMessageProcessor::class],
        ],

        'syslog' => [
            'driver' => 'syslog',
            'level' => env('LOG_LEVEL', 'debug'),
            'facility' => env('LOG_SYSLOG_FACILITY', LOG_USER),
            'replace_placeholders' => true,
        ],

        'errorlog' => [
            'driver' => 'errorlog',
            'level' => env('LOG_LEVEL', 'debug'),
            'replace_placeholders' => true,
        ],

        'null' => [
            'driver' => 'monolog',
            'handler' => NullHandler::class,
        ],

        'emergency' => [
            'path' => storage_path('logs/laravel.log'),
        ],

    ],

];