<?php

namespace App\Services;

use App\Models\ServiceRequest;
use App\Models\User;
use App\Notifications\RequestAssignedNotification;
use App\Notifications\RequestCommentAddedNotification;
use App\Notifications\RequestOverdueNotification;
use App\Notifications\RequestStatusChangedNotification;
use App\Notifications\SlaWarningNotification;
use Illuminate\Support\Collection;

class NotificationService
{
    public function __construct(private readonly SettingsService $settingsService)
    {
    }

    public function notifyRequestAssigned(ServiceRequest $request): void
    {
        $assignee = $request->assignee;

        if (!$assignee || !$this->enabled('assigned')) {
            return;
        }

        $assignee->notify(new RequestAssignedNotification($request));
    }

    public function notifyStatusChanged(ServiceRequest $request): void
    {
        if (!$this->enabled('status_changed')) {
            return;
        }

        $request->client?->notify(new RequestStatusChangedNotification($request));
    }

    public function notifyCommentAdded(ServiceRequest $request, User $author): void
    {
        if (!$this->enabled('comment_added')) {
            return;
        }

        $recipients = collect([$request->client, $request->assignee])
            ->filter()
            ->reject(fn (User $user) => $user->id === $author->id);

        /** @var User $recipient */
        foreach ($recipients as $recipient) {
            $recipient->notify(new RequestCommentAddedNotification($request, $author));
        }
    }

    public function notifyOverdue(ServiceRequest $request, Collection $managers): void
    {
        if (!$this->enabled('overdue')) {
            return;
        }

        $recipients = collect([$request->assignee])->filter()->merge($managers);

        /** @var User $recipient */
        foreach ($recipients->unique('id') as $recipient) {
            $recipient->notify(new RequestOverdueNotification($request));
        }
    }

    public function notifySlaWarning(ServiceRequest $request, Collection $managers): void
    {
        if (!$this->enabled('sla_warning')) {
            return;
        }

        $recipients = collect([$request->assignee])->filter()->merge($managers);

        /** @var User $recipient */
        foreach ($recipients->unique('id') as $recipient) {
            $recipient->notify(new SlaWarningNotification($request));
        }
    }

    private function enabled(string $key): bool
    {
        $map = $this->settingsService->emailNotifications();

        return (bool) ($map[$key] ?? true);
    }
}