<?php
declare(strict_types=1);

namespace App\Command;

use Cake\Command\Command;
use Cake\Console\Arguments;
use Cake\Console\ConsoleIo;
use Cake\Console\ConsoleOptionParser;
use App\WGS\SnapshotsHandler\SnapshotsHandler;
use Cake\Datasource\ConnectionManager;

/**
 * UnpackWaterDrawingPaperworkSnapshots command.
 */
class UnpackWaterDrawingPaperworkSnapshotsCommand extends Command
{
    /**
     * Hook method for defining this command's option parser.
     *
     * @see https://book.cakephp.org/4/en/console-commands/commands.html#defining-arguments-and-options
     * @param \Cake\Console\ConsoleOptionParser $parser The parser to be defined
     * @return \Cake\Console\ConsoleOptionParser The built parser.
     */
    public function buildOptionParser(ConsoleOptionParser $parser): ConsoleOptionParser
    {
        $parser = parent::buildOptionParser($parser);
        $parser->setDescription('Unpacks water_drawing_paperworks from Snapshots and store them to unpacked_water_drawing_paperwork_snapshots table with the last unpacking version number available');

        $parser
            ->addOptions([
                'limit' => [
                    'short' => 'l',
                    'help' => 'Number of rows to process',
                    'boolean' => false,
                    'required' => true,
                ],
            ]);

        return $parser;
    }

    /**
     * Implement this method with your command's logic.
     *
     * @param \Cake\Console\Arguments $args The command arguments.
     * @param \Cake\Console\ConsoleIo $io The console io
     * @return null|void|int The exit code or null for success
     */
    public function execute(Arguments $args, ConsoleIo $io)
    {
        $limit = $args->getOption('limit');
        if ($limit < 1) $io->abort("You must specify an Int number greater than ZERO!");
        $io->info("trying processing $limit items...");
        $lastWaterDrawingPaperworkUnpackingVersion = SnapshotsHandler::getLastWaterDrawingPaperworkUnpackingVersion();
        $io->info("lastWaterDrawingPaperworkUnpackingVersion: $lastWaterDrawingPaperworkUnpackingVersion");

        $processed = 0;
        $unpackable_water_drawing_paperwork_snapshots = $this->fetchTable('Snapshots')->find()->where(['Snapshots.controllable_object_type_id' => 9, 'OR' => ['Snapshots.unpacked_with_version is NULL', 'Snapshots.unpacked_with_version <>' => $lastWaterDrawingPaperworkUnpackingVersion]])->limit((int)$limit)->toArray();

        $io->info("found " . count($unpackable_water_drawing_paperwork_snapshots) . " unpackable items.");

        if (count($unpackable_water_drawing_paperwork_snapshots) > 0) ConnectionManager::get('default')->begin();

        $this->fetchTable('WaterDrawingPaperworks')->removeBehavior('Trash');

        foreach ($unpackable_water_drawing_paperwork_snapshots as $unpackable_water_drawing_paperwork_snapshot) {
            $io->info("\nUnpackedWaterDrawingPaperworkSnapshot entity:");
            $unpackedWaterDrawingPaperworkSnapshot = SnapshotsHandler::getUnpackedWaterDrawingPaperworkSnapshot($unpackable_water_drawing_paperwork_snapshot->id);
            if (!$unpackedWaterDrawingPaperworkSnapshot) {
                ConnectionManager::get('default')->rollback();
                $io->abort("\nError retrieving unpackedWaterDrawingPaperworkSnapshot!");
            }
            $io->info(json_encode($unpackedWaterDrawingPaperworkSnapshot));
            $io->info("\nSaving unpacked water_drawing_paperwork snapshot to unpackedWaterDrawingPaperworkSnapshots table...");
            if (!$this->fetchTable('UnpackedWaterDrawingPaperworkSnapshots')->save($unpackedWaterDrawingPaperworkSnapshot)) {
                ConnectionManager::get('default')->rollback();
                $io->abort("\nError saving unpackedWaterDrawingPaperworkSnapshot: " . json_encode($unpackedWaterDrawingPaperworkSnapshot->getErrors()));
            }
            $io->info("\nMarking and saving snapshot with ID " . $unpackable_water_drawing_paperwork_snapshot->id . " as unpacked with version: " . $lastWaterDrawingPaperworkUnpackingVersion);
            $unpackable_water_drawing_paperwork_snapshot->unpacked_with_version = $lastWaterDrawingPaperworkUnpackingVersion;
            if (!$this->fetchTable('Snapshots')->save($unpackable_water_drawing_paperwork_snapshot)) {
                ConnectionManager::get('default')->rollback();
                $io->abort("\nError saving snapshot: " . json_encode($unpackable_water_drawing_paperwork_snapshot->getErrors()));
            }
            $processed++;
            $io->success("\nSUCCESSFULLY PROCESSED: $processed !\n");
        }
        
        $this->fetchTable('WaterDrawingPaperworks')->addBehavior('Muffin/Trash.Trash');

        $io->success("\nJOB IS DONE. REQUESTED: $limit, UNPACKABLE: " . count($unpackable_water_drawing_paperwork_snapshots) . " SUCCESSFULLY PROCESSED: $processed");
        
        if (count($unpackable_water_drawing_paperwork_snapshots) > 0) ConnectionManager::get('default')->commit();

        return static::CODE_SUCCESS;
    }
}