<?php

namespace App\Livewire\Ui\V2\Mail;

use App\Models\Domain;
use App\Models\Setting;
use Illuminate\Support\Facades\Artisan;
use Illuminate\Support\Str;
use Livewire\Attributes\On;
use Livewire\Component;

class MailboxList extends Component
{
    public string $search = '';

    #[On('mailbox:updated')]
    #[On('mailbox:deleted')]
    #[On('mailbox:created')]
    public function refreshMailboxList(): void
    {
        $this->dispatch('$refresh');
    }

    public function openMailboxCreate(int $domainId): void
    {
        $this->dispatch('openModal', component: 'ui.mail.modal.mailbox-create-modal', arguments: [
            'domainId' => $domainId,
        ]);
    }

    public function openMailboxEdit(int $mailUserId): void
    {
        $this->dispatch('openModal', component: 'ui.mail.modal.mailbox-edit-modal', arguments: [
            $mailUserId,
        ]);
    }

    public function openMailboxDelete(int $mailUserId): void
    {
        $this->dispatch('openModal', component: 'ui.mail.modal.mailbox-delete-modal', arguments: [
            $mailUserId,
        ]);
    }

    public function updateMailboxStats(): void
    {
        dispatch(fn() => Artisan::call('mail:update-stats'));
        $this->dispatch('$refresh');
        $this->dispatch('toast',
            type: 'done',
            badge: 'Mailbox',
            title: 'Statistiken aktualisiert',
            text: 'Die Mailbox-Statistiken wurden aktualisiert.',
            duration: 5000,
        );
    }

    public function render()
    {
        $term    = trim($this->search);
        $hasTerm = $term !== '';
        $needle  = '%' . str_replace(['%', '_'], ['\%', '\_'], $term) . '%';

        $domains = Domain::query()
            ->where('is_system', false)
            ->where('is_server', false)
            ->when($hasTerm, function ($q) use ($needle) {
                $q->where(function ($w) use ($needle) {
                    $w->where('domain', 'like', $needle)
                        ->orWhereHas('mailUsers', fn($u) => $u
                            ->where('is_active', true)
                            ->where('is_system', false)
                            ->where('localpart', 'like', $needle)
                        );
                });
            })
            ->withCount(['mailUsers as mail_users_count' => fn($u) => $u
                ->where('is_active', true)
                ->where('is_system', false)
            ])
            ->with(['mailUsers' => function ($q) use ($hasTerm, $needle) {
                $q->where('is_active', true)->where('is_system', false);
                if ($hasTerm) {
                    $q->where('localpart', 'like', $needle);
                }
                $q->orderBy('localpart');
            }])
            ->orderBy('domain')
            ->get();

        if ($hasTerm) {
            $lower = Str::lower($term);
            foreach ($domains as $d) {
                if (Str::contains(Str::lower($d->domain), $lower)) {
                    $d->setRelation('mailUsers', $d->mailUsers()
                        ->where('is_active', true)
                        ->where('is_system', false)
                        ->orderBy('localpart')
                        ->get()
                    );
                }
            }
        }

        foreach ($domains as $d) {
            $prepared      = [];
            $domainActive  = (bool)($d->is_active ?? true);

            foreach ($d->mailUsers as $u) {
                $email   = $u->email ?? null;
                $stats   = $email ? (Setting::get("mailbox.{$email}", []) ?: []) : [];

                $usedBytes    = (int)($stats['used_bytes']    ?? 0);
                $messageCount = (int)($stats['message_count'] ?? 0);
                $usedMiB      = round($usedBytes / 1048576, 2);
                $quotaMiB     = (int)($u->quota_mb ?? 0);
                $usage        = $quotaMiB > 0
                    ? min(100, (int)round($usedBytes / ($quotaMiB * 1048576) * 100))
                    : 0;

                $mailboxActive = (bool)($u->is_active ?? true);
                $effective     = $domainActive && $mailboxActive;
                $reason        = null;
                if (!$effective) {
                    $reason = !$domainActive ? 'Domain inaktiv' : 'Postfach inaktiv';
                }

                $barClass = $usage > 85 ? 'mbx-bar-high' : ($usage > 60 ? 'mbx-bar-mid' : 'mbx-bar-low');

                $prepared[] = [
                    'id'                => $u->id,
                    'localpart'         => (string)$u->localpart,
                    'quota_mb'          => $quotaMiB,
                    'used_mb'           => $usedMiB,
                    'usage_percent'     => $usage,
                    'bar_class'         => $barClass,
                    'message_count'     => $messageCount,
                    'is_active'         => $mailboxActive,
                    'is_effective_active' => $effective,
                    'inactive_reason'   => $reason,
                    'last_login'        => $u->last_login_at?->diffForHumans() ?? '—',
                ];
            }

            $d->prepared_mailboxes = $prepared;
        }

        $totalMailboxes = $domains->sum('mail_users_count');

        return view('livewire.ui.v2.mail.mailbox-list', [
            'domains'       => $domains,
            'totalMailboxes'=> $totalMailboxes,
        ]);
    }
}