<?php

namespace App\Console\Commands;

use App\Http\Api\DictApi;
use App\Models\UserDict;
use Illuminate\Console\Command;
use Illuminate\Support\Facades\Log;
use Illuminate\Support\Facades\Redis;

class ExportFtsPali extends Command
{
    /**
     * The name and signature of the console command.
     *
     * @var string
     */
    protected $signature = 'export:fts.pali';

    /**
     * The console command description.
     *
     * @var string
     */
    protected $description = '导出全文搜索用的巴利语词汇表';

    /**
     * Create a new command instance.
     *
     * @return void
     */
    public function __construct()
    {
        parent::__construct();
    }

    /**
     * Execute the console command.
     *
     * @return int
     */
    public function handle()
    {
        // irregular
        $dictId = ['4d3a0d92-0adc-4052-80f5-512a2603d0e8'];
        // regular
        $dictId[] = DictApi::getSysDict('system_regular');
        $long = ['ā', 'ī', 'ū'];
        $path = storage_path('app/export/fts');
        if (! is_dir($path)) {
            $res = mkdir($path, 0700, true);
            if (! $res) {
                Log::error('mkdir fail path='.$path);

                return 1;
            }
        }

        $pageSize = 10000;
        $currPage = 1;
        $filename = "/pali-{$currPage}.syn";
        $fp = fopen($path.$filename, 'w') or exit('Unable to open file!');
        $count = 0;
        foreach ($dictId as $key => $value) {
            $words = UserDict::where('dict_id', $value)
                ->select('word')
                ->groupBy('word')->cursor();
            $this->info('word count='.count($words));
            foreach ($words as $key => $word) {
                $count++;
                if ($count % 1000 === 0) {
                    $this->info($count);
                }
                if ($count % 10000 === 0) {
                    fclose($fp);
                    $redisKey = 'export/fts/pali'.$filename;
                    $content = file_get_contents($path.$filename);
                    Redis::set($redisKey, $content);
                    Redis::expire($redisKey, 3600 * 24 * 10);
                    $currPage++;
                    $filename = "/pali-{$currPage}.syn";
                    $this->info('new file filename='.$filename);
                    $fp = fopen($path.$filename, 'w') or exit('Unable to open file!');
                }
                $parent = UserDict::where('dict_id', $value)
                    ->where('word', $word->word)
                    ->selectRaw('parent,char_length("parent")')
                    ->groupBy('parent')->orderBy('char_length', 'asc')->first();

                if ($parent && ! empty($parent->parent)) {
                    $end = mb_substr($parent->parent, -1, null, 'UTF-8');
                    if (in_array($end, ['ā', 'ī', 'ū'])) {
                        $head = mb_substr($parent->parent, 0, mb_strlen($parent->parent) - 1, 'UTF-8');
                        $newEnd = str_replace(['ā', 'ī', 'ū'], ['a', 'i', 'u'], $end);
                        $parentWord = $head.$newEnd;
                    } else {
                        $parentWord = $parent->parent;
                    }
                    fwrite($fp, $word->word.' '.$parentWord.PHP_EOL);
                } else {
                    $this->error('word no parent word='.$word->word);
                }
            }
        }
        fclose($fp);

        return 0;
    }
}