<?php

namespace App\Console\Commands;

use App\Models\Central\Company;
use App\Models\Tenant\ServiceReminderSent;
use App\Models\Tenant\Vehicle;
use App\Models\Tenant\WorkOrder;
use App\Services\NotificationDispatcher;
use App\Tenancy\TenantManager;
use Illuminate\Console\Command;
use Illuminate\Support\Carbon;

class SendServiceRemindersCommand extends Command
{
    protected $signature = 'reminders:send
                            {--slug= : Only one tenant by slug}
                            {--dry-run : Show candidates without sending}';

    protected $description = 'Scan vehicles for due service reminders and send via configured channels.';

    public function handle(NotificationDispatcher $dispatcher): int
    {
        $query = Company::query()->where('status', '!=', 'archived');
        if ($slug = $this->option('slug')) {
            $query->where('slug', $slug);
        }
        $companies = $query->get();
        $dry = (bool) $this->option('dry-run');

        $totalSent = 0;

        foreach ($companies as $company) {
            app(TenantManager::class)->setCurrent($company);

            $settings = (array) ($company->settings ?? []);
            $reminderDays = (int) data_get($settings, 'reminder.after_days', 365);
            $cooldownDays = (int) data_get($settings, 'reminder.cooldown_days', 30);

            $cutoff = Carbon::now()->subDays($reminderDays);
            $cooldown = Carbon::now()->subDays($cooldownDays);

            // Pick vehicles whose last *closed* WO was before $cutoff (or never).
            $vehicles = Vehicle::with('client')
                ->whereHas('client', fn ($q) => $q->where('status', 'active'))
                ->get();

            $sentThisTenant = 0;
            foreach ($vehicles as $v) {
                $lastClosedAt = WorkOrder::where('vehicle_id', $v->id)
                    ->whereNotNull('closed_at')
                    ->max('closed_at');

                if (! $lastClosedAt) continue;       // never serviced — skip (handled by other logic)
                if (Carbon::parse($lastClosedAt)->gt($cutoff)) continue;

                $recent = ServiceReminderSent::where('vehicle_id', $v->id)
                    ->where('sent_at', '>=', $cooldown)
                    ->exists();
                if ($recent) continue;

                if ($dry) {
                    $this->line("  - [{$company->slug}] Vehicle #{$v->id} {$v->plate} last serviced {$lastClosedAt}");
                    continue;
                }

                $ok = $dispatcher->serviceReminder($v, 'general');
                if ($ok) {
                    ServiceReminderSent::create([
                        'company_id' => $company->id,
                        'vehicle_id' => $v->id,
                        'client_id' => $v->client_id,
                        'channel' => $v->client?->telegram_chat_id ? 'telegram' : 'email',
                        'type' => 'general',
                        'sent_at' => now(),
                    ]);
                    $sentThisTenant++;
                }
            }

            $this->info(sprintf('[%s] reminders sent: %d', $company->slug, $sentThisTenant));
            $totalSent += $sentThisTenant;
        }

        $this->info("Total reminders sent: {$totalSent}" . ($dry ? ' (dry run)' : ''));
        return self::SUCCESS;
    }
}