<?php

use App\Models\Mailbox;
use App\Services\Mail\MailboxResolver;
use App\Services\Mail\MailPurpose;
use App\Support\Settings;

beforeEach(function () {
    config()->set('admin_access.secrets_key', 'base64:'.base64_encode(random_bytes(32)));
    clearMailboxSeed();
});

it('resolves a purpose to the mailbox it points at', function () {
    Mailbox::factory()->create(['key' => 'support', 'address' => 'support@clupilot.com']);
    Settings::set('mail.purpose.support', 'support');

    expect(app(MailboxResolver::class)->for(MailPurpose::SUPPORT)?->address)
        ->toBe('support@clupilot.com');
});

it('falls back to system when a purpose has no mailbox', function () {
    Mailbox::factory()->create(['key' => 'no-reply', 'address' => 'no-reply@clupilot.com']);
    Settings::set('mail.purpose.system', 'no-reply');

    // billing deliberately unset
    expect(app(MailboxResolver::class)->for(MailPurpose::BILLING)?->address)
        ->toBe('no-reply@clupilot.com');
});

it('falls back to system when the named mailbox no longer exists', function () {
    Mailbox::factory()->create(['key' => 'no-reply', 'address' => 'no-reply@clupilot.com']);
    Settings::set('mail.purpose.system', 'no-reply');
    Settings::set('mail.purpose.billing', 'geloescht');

    expect(app(MailboxResolver::class)->for(MailPurpose::BILLING)?->address)
        ->toBe('no-reply@clupilot.com');
});

it('falls back to system when the mailbox is deactivated, not deleted', function () {
    // Deactivating is an explicit operator action. Reaching this mailbox by
    // its row surviving would silently send from an address the operator
    // just told the console to stop using.
    Mailbox::factory()->create(['key' => 'support', 'address' => 'support@clupilot.com', 'active' => false]);
    Mailbox::factory()->create(['key' => 'no-reply', 'address' => 'no-reply@clupilot.com']);
    Settings::set('mail.purpose.support', 'support');
    Settings::set('mail.purpose.system', 'no-reply');

    expect(app(MailboxResolver::class)->for(MailPurpose::SUPPORT)?->address)
        ->toBe('no-reply@clupilot.com');
});

it('returns null rather than an inactive mailbox when the fallback is deactivated too', function () {
    // The fallback lookup is filtered the SAME way as the direct one — an
    // inactive system mailbox must not be handed out just because it is the
    // last candidate.
    Mailbox::factory()->create(['key' => 'support', 'address' => 'support@clupilot.com', 'active' => false]);
    Mailbox::factory()->create(['key' => 'no-reply', 'address' => 'no-reply@clupilot.com', 'active' => false]);
    Settings::set('mail.purpose.support', 'support');
    Settings::set('mail.purpose.system', 'no-reply');

    expect(app(MailboxResolver::class)->for(MailPurpose::SUPPORT))->toBeNull();
});

it('returns null rather than guessing when even system is unset', function () {
    expect(app(MailboxResolver::class)->for(MailPurpose::SYSTEM))->toBeNull();
});

it('rejects a purpose that is not in the curated list', function () {
    expect(fn () => app(MailboxResolver::class)->for('erfunden'))
        ->toThrow(InvalidArgumentException::class, 'erfunden');
});