<?php

namespace App\Jobs;

use App\Enums\QsoErrorCode;
use App\Models\EvaluationRun;
use App\Models\EvaluationRuleSet;
use App\Models\QsoResult;
use App\Models\WorkingQso;
use App\Services\Evaluation\EvaluationCoordinator;
use Illuminate\Contracts\Queue\ShouldQueue;
use Illuminate\Bus\Batchable;
use Illuminate\Foundation\Queue\Queueable;
use Throwable;

/**
 * Job: UnpairedClassificationBucketJob
 *
 * Účel:
 *  - Klasifikace nenapárovaných QSO v bucketu band_id + rcall_norm.
 *  - Udržuje kratší dobu běhu jednoho jobu.
 */
class UnpairedClassificationBucketJob implements ShouldQueue
{
    use Batchable;
    use Queueable;

    public int $tries = 2;
    public array $backoff = [60];

    protected ?int $bandId;
    protected string $rcallNorm;

    public function __construct(
        protected int $evaluationRunId,
        ?int $bandId,
        string $rcallNorm
    ) {
        $this->bandId = $bandId;
        $this->rcallNorm = $rcallNorm;
    }

    public function handle(): void
    {
        $run = EvaluationRun::find($this->evaluationRunId);
        if (! $run || $run->isCanceled()) {
            return;
        }
        $coordinator = new EvaluationCoordinator();

        try {
            $ruleSet = EvaluationRuleSet::find($run->rule_set_id);
            if (! $ruleSet) {
                $coordinator->eventError($run, 'Unpaired klasifikace nelze spustit: chybí ruleset.', [
                    'step' => 'unpaired_classification',
                ]);
                return;
            }

            $coordinator->eventInfo($run, 'Unpaired bucket: krok spuštěn.', [
                'step' => 'unpaired_classification',
                'round_id' => $run->round_id,
                'band_id' => $this->bandId,
                'rcall_norm' => $this->rcallNorm,
            ]);

            $workingQuery = WorkingQso::where('evaluation_run_id', $run->id)
                ->where('rcall_norm', $this->rcallNorm);
            if ($this->bandId !== null) {
                $workingQuery->where('band_id', $this->bandId);
            } else {
                $workingQuery->whereNull('band_id');
            }
            $logQsoIds = $workingQuery->pluck('log_qso_id')->all();
            if (! $logQsoIds) {
                return;
            }

            QsoResult::where('evaluation_run_id', $run->id)
                ->whereNull('matched_log_qso_id')
                ->whereIn('log_qso_id', $logQsoIds)
                ->chunkById(500, function ($results) use ($run, $ruleSet) {
                    foreach ($results as $result) {
                        $wqso = WorkingQso::where('evaluation_run_id', $run->id)
                            ->where('log_qso_id', $result->log_qso_id)
                            ->first();
                        if (! $wqso) {
                            continue;
                        }

                        $hasCounterpartLog = false;
                        if ($wqso->band_id && $wqso->rcall_norm) {
                            $hasCounterpartLog = WorkingQso::where('evaluation_run_id', $run->id)
                                ->where('band_id', $wqso->band_id)
                                ->where('call_norm', $wqso->rcall_norm)
                                ->exists();
                        }

                        if ($hasCounterpartLog) {
                            $result->error_code = QsoErrorCode::NOT_IN_COUNTERPART_LOG;
                            $result->is_nil = true;
                        } else {
                            $isUnique = false;
                            if ($ruleSet->uniqueQsoEnabled() && $wqso->rcall_norm) {
                                $uniqueQuery = WorkingQso::where('evaluation_run_id', $run->id)
                                    ->where('rcall_norm', $wqso->rcall_norm);
                                if ($wqso->band_id) {
                                    $uniqueQuery->where('band_id', $wqso->band_id);
                                }
                                $count = $uniqueQuery->count();
                                $isUnique = $count === 1;
                            }

                            if ($isUnique) {
                                $result->error_code = QsoErrorCode::UNIQUE;
                                $result->is_nil = false;
                            } else {
                                $result->error_code = QsoErrorCode::NO_COUNTERPART_LOG;
                                $result->is_nil = true;
                            }
                        }

                        $result->is_valid = false;
                        $result->error_side = 'NONE';
                        $result->save();
                    }
                });

            EvaluationRun::where('id', $run->id)->increment('progress_done');
            $coordinator->eventInfo($run, 'Unpaired bucket: krok dokončen.', [
                'step' => 'unpaired_classification',
                'round_id' => $run->round_id,
                'band_id' => $this->bandId,
                'rcall_norm' => $this->rcallNorm,
            ]);
        } catch (Throwable $e) {
            $coordinator->eventError($run, 'Unpaired bucket: krok selhal.', [
                'step' => 'unpaired_classification',
                'round_id' => $run->round_id,
                'band_id' => $this->bandId,
                'rcall_norm' => $this->rcallNorm,
                'error' => $e->getMessage(),
            ]);
            throw $e;
        }
    }
}