<?php

namespace App\Console\Commands\Areafix;

use Carbon\Carbon;
use Illuminate\Console\Command;

use App\Models\{Address,Echoarea,Echomail};

class Rescan extends Command
{
	/**
	 * The name and signature of the console command.
	 *
	 * @var string
	 */
	protected $signature = 'areafix:rescan'
		.' {ftn : FTN Address}'
		.' {area : Echoarea Tag}'
		.' {days? : Limit to messages authored days ago}'
		.' {--R|export : Re-export previously sent messages }';

	/**
	 * The console command description.
	 *
	 * @var string
	 */
	protected $description = 'Resend some echomail to a node';

	/**
	 * Execute the console command.
	 *
	 * @return int
	 * @throws \Exception
	 */
	public function handle(): int
	{
		if (($this->argument('days')) && (! is_numeric($this->argument('days'))))
			throw new \Exception('Days must be numeric: '.$this->argument('days'));

		$ao = Address::findFtn($this->argument('ftn'));

		if (! $ao)
			throw new \Exception('FTN not found: '.$this->argument('ftn'));

		// Check that the area belongs to the domain for the FTN
		if (! $this->argument('area'))
			throw new \Exception('Areaname is required');

		$eao = Echoarea::where('name',$this->argument('area'))->singleOrFail();
		if ($eao->domain_id !== $ao->zone->domain_id)
			throw new \Exception(sprintf('Echo area [%s] is not in domain [%s] for FTN [%s]',$eao->name,$ao->zone->domain->name,$ao->ftn));

		// Check that the user is subscribed
		if (! $ao->echoareas->contains($eao->id))
			throw new \Exception(sprintf('FTN [%s] is not subscribed to [%s]',$ao->ftn,$eao->name));

		// Check that an FTN can read the area
		if (! $eao->can_read($ao->security))
			throw new \Exception(sprintf('FTN [%s] doesnt have permission to receive [%s]',$ao->ftn,$eao->name));

		foreach (Echomail::select(['id','datetime'])
			->where('echoarea_id',$eao->id)
			->when(
				$this->argument('days'),
				fn($query)=>$query->where('datetime','>=',
					Carbon::now()
						->subDays($this->argument('days'))
						->startOfDay())
			)
			->orderBy('datetime')
			->cursor() as $eo) {

			// Echomail hasnt been exported before
			if (! $eo->seenby->count()) {
				$eo->seenby()->attach($ao->id,['export_at'=>Carbon::now()]);

				$this->info(sprintf('Exported [%d] MSG (%s) dated (%s) to [%s]',$eo->id,$eo->msgid ?: '*NO MSGID*',$eo->datetime->format('Y-m-d H:i:s'),$ao->ftn3d));

			} else {
				$export = $eo->seenby->where('id',$ao->id)->pop();

				if ($export) {
					// Echomail is pending export
					if ($export->pivot->export_at && is_null($export->pivot->sent_at) && is_null($export->pivot->sent_pkt)) {
						$this->warn(sprintf('Not exporting [%d] MSG (%s) dated (%s) already queued for [%s]',$eo->id,$eo->msgid ?: '*NO MSGID*',$eo->datetime->format('Y-m-d H:i:s'),$ao->ftn3d));

					// Echomail has been exported
					} elseif ($this->option('export')) {
						$eo->seenby()->updateExistingPivot($ao,['export_at'=>Carbon::now(),'sent_at'=>NULL,'sent_pkt'=>NULL]);

						$this->info(sprintf('Re-exported [%d] MSG (%s) dated (%s) to [%s]',$eo->id,$eo->msgid ?: '*NO MSGID*',$eo->datetime,$ao->ftn3d));

					} else {
						$this->info(sprintf('Not resending previously sent message [%d], MSGID (%s) - sent in Pkt [%s] on [%s]',
							$eo->id,
							$eo->msgid ?: '* NO MSGID*',
							$export->pivot->sent_pkt ?: '-',
							$export->pivot->sent_at ?: '-',
						));
					}

				// Echomail has not been exported
				} else {
					$eo->seenby()->attach($ao,['export_at'=>Carbon::now(),'sent_at'=>NULL,'sent_pkt'=>NULL]);

					$this->info(sprintf('Exported [%d] to [%s]',$eo->id,$ao->ftn3d));
				}
			}
		}

		return self::SUCCESS;
	}
}