<?php

namespace App\SearchDisplace\Searchers;

use Illuminate\Support\Facades\Storage;

abstract class SearcherCreator
{
    protected $name;
    protected $id;
    protected $description;
    protected $tag;
    protected $rows = [];
    protected $storage;
    protected $searchersCollection;

    public function __construct($name, $tag, $description)
    {
        $this->name = $name;
        $this->tag = $tag;
        $this->description = $description;
        $this->id = $this->generateID();
        $this->storage = Storage::disk('local');
        $this->searchersCollection = new SearchersCollection();
    }

    abstract public function create();

    protected function store()
    {
        $id = "{$this->id}_{$this->name}";

        if ($this->tag) {
            $id = "{$id}_{$this->tag}";
        }

        return $this->save($id);
    }

    public function update($id)
    {
        $result = explode('_', $id);
        $uniqueId = $result[0];

        $newId = $uniqueId . '_' . $this->name;

        if ($this->tag) {
            $newId = "{$newId}_{$this->tag}";
        }

        if ($id !== $newId) {
            $this->storage->move("searchers/$id.json", "searchers/$newId.json");
        }

        return $this->save($newId);
    }

    public function save($id)
    {
        $this->rows = $this->processRows($this->rows);

        $contents = [
            'id' => $id,
            'name' => $this->name,
            'tag' => $this->tag,
            'description' => $this->description,
            'rows' => $this->rows,
        ];

        $this->storage->put("searchers/$id.json", json_encode($contents));

        return array_merge($contents, [
            'id' => $id,
        ]);
    }

    protected function processRows($rows)
    {
        foreach ($rows as $rowIndex => $row) {
            foreach ($row as $columnIndex => $column) {
                if (array_key_exists('id', $column)) {
                    $rows[$rowIndex][$columnIndex]['id'] = $this->generateNewIDFromID($column);

//                    if ( ! array_key_exists('rows', $column)) {
//                        $searcher = $this->searchersCollection->get($column['id']);
//
//                        $rows[$rowIndex][$columnIndex]['rows'] = $searcher['rows'];
//                    }
                }

                if (array_key_exists('rows', $rows[$rowIndex][$columnIndex])) {
                    $rows[$rowIndex][$columnIndex]['rows'] = $this->processRows($rows[$rowIndex][$columnIndex]['rows']);
                }
            }
        }

        return $rows;
    }

    protected function generateNewIDFromID($searcher)
    {
        if (array_key_exists('type', $searcher) && $searcher['type'] === 'duckling') {
            return $searcher['id'];
        }

        $result = explode('_', $searcher['id']);

        if (count($result) === 1) {
            return $result[0];
        }

        return $this->generateID() . '_' . $result[1];
    }

    protected function generateID()
    {
        return md5(uniqid(rand(), true));
    }
}