<?php

/**
 * 计算章节的父子，前后关系
 * 输入： csv文件
 */

namespace App\Console\Commands;

use App\Models\BookTitle;
use App\Models\PaliText;
use App\Tools\Tools;
use Illuminate\Console\Command;
use Illuminate\Support\Facades\Log;

class UpgradePaliText extends Command
{
    /**
     * The name and signature of the console command.
     * php artisan upgrade:palitext 168
     *
     * @var string
     */
    protected $signature = 'upgrade:palitext {from?} {to?}';

    /**
     * The console command description.
     *
     * @var string
     */
    protected $description = 'upgrade pali_texts paragraph infomation';

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

    /**
     * Execute the console command.
     *
     * @return int
     */
    public function handle()
    {
        if (Tools::isStop()) {
            return 0;
        }
        $this->info('upgrade pali text');
        $startTime = time();

        $_from = $this->argument('from');
        $_to = $this->argument('to');
        if (empty($_from) && empty($_to)) {
            $_from = 1;
            $_to = 217;
        } elseif (empty($_to)) {
            $_to = $_from;
        }
        // 载入文件列表
        $fileListFileName = config('mint.path.palitext_filelist');

        $filelist = [];

        if (($handle = fopen($fileListFileName, 'r')) !== false) {
            while (($filelist[] = fgetcsv($handle, 0, ',')) !== false) {
            }
        }

        for ($from = $_from; $from <= $_to; $from++) {
            $this->info('book: '.$from);
            $inputRow = 0;
            $arrInserString = [];
            // 载入csv数据
            $FileName = $filelist[$from - 1][1];
            $csvFile = config('mint.path.pali_title').'/'.$from.'_pali.csv';
            if (($fp = fopen($csvFile, 'r')) !== false) {
                Log::info('csv load：'.$csvFile);
                while (($data = fgetcsv($fp, 0, ',')) !== false) {
                    if ($inputRow > 0) {
                        array_push($arrInserString, $data);
                    }
                    $inputRow++;
                }
                fclose($fp);
            } else {
                $this->error('can not open csv file. filename='.$csvFile.PHP_EOL);
                Log::error('can not open csv file. filename='.$csvFile);

                continue;
            }
            $title_data = PaliText::select(['book', 'paragraph', 'level', 'parent', 'toc', 'lenght'])
                ->where('book', $from)->orderby('paragraph', 'asc')->get();

            $paragraph_count = count($title_data);
            $paragraph_info = [];
            $paragraph_info[] = [$from, -1, $paragraph_count, -1, -1, -1];

            for ($iPar = 0; $iPar < count($title_data); $iPar++) {
                $title_data[$iPar]['level'] = $arrInserString[$iPar][3];
            }

            for ($iPar = 0; $iPar < count($title_data); $iPar++) {
                $book = $from;
                $paragraph = $title_data[$iPar]['paragraph'];
                $true_level = (int) $title_data[$iPar]['level'];

                if ((int) $title_data[$iPar]['level'] == 8) {
                    $title_data[$iPar]['level'] = 100;
                }
                $curr_level = (int) $title_data[$iPar]['level'];
                // 计算这个chapter的段落数量
                $length = -1;

                for ($iPar1 = $iPar + 1; $iPar1 < count($title_data); $iPar1++) {
                    $thislevel = (int) $title_data[$iPar1]['level'];
                    if ($thislevel <= $curr_level) {
                        $length = (int) $title_data[$iPar1]['paragraph'] - $paragraph;
                        break;
                    }
                }

                if ($length == -1) {
                    $length = $paragraph_count - $paragraph + 1;
                }

                /*
                上一个段落
                算法：查找上一个标题段落。而且该标题段落的下一个段落不是标题段落
                */
                $prev = -1;
                if ($iPar > 0) {
                    for ($iPar1 = $iPar - 1; $iPar1 >= 0; $iPar1--) {
                        if ($title_data[$iPar1]['level'] < 8 && $title_data[$iPar1 + 1]['level'] == 100) {
                            $prev = $title_data[$iPar1]['paragraph'];
                            break;
                        }
                    }
                }
                /*
                下一个段落
                算法：查找下一个标题段落。而且该标题段落的下一个段落不是标题段落
                */
                $next = -1;
                if ($iPar < count($title_data) - 1) {
                    for ($iPar1 = $iPar + 1; $iPar1 < count($title_data) - 1; $iPar1++) {
                        if ($title_data[$iPar1]['level'] < 8 && $title_data[$iPar1 + 1]['level'] == 100) {
                            $next = $title_data[$iPar1]['paragraph'];
                            break;
                        }
                    }
                }
                // 查找parent
                $parent = -1;
                if ($iPar > 0) {
                    for ($iPar1 = $iPar - 1; $iPar1 >= 0; $iPar1--) {
                        if ($title_data[$iPar1]['level'] < $true_level) {
                            $parent = $title_data[$iPar1]['paragraph'];
                            break;
                        }
                    }
                }
                // 计算章节包含总字符数
                $iChapter_strlen = 0;

                for ($i = $iPar; $i < $iPar + $length; $i++) {
                    $iChapter_strlen += $title_data[$i]['lenght'];
                }

                $newData = [
                    'level' => $arrInserString[$iPar][3],
                    'toc' => $arrInserString[$iPar][5],
                    'chapter_len' => $length,
                    'next_chapter' => $next,
                    'prev_chapter' => $prev,
                    'parent' => $parent,
                    'chapter_strlen' => $iChapter_strlen,
                ];
                if ((int) $arrInserString[$iPar][3] < 8) {
                    $newData['title'] = strtolower($arrInserString[$iPar][6]);
                    $newData['title_en'] = Tools::getWordEn($newData['title']);
                }

                $path = [];

                $title_data[$iPar]['level'] = $newData['level'];
                $title_data[$iPar]['toc'] = $newData['toc'];
                $title_data[$iPar]['parent'] = $newData['parent'];

                /*
                *获取路径
                */
                $currParent = $parent;

                $iLoop = 0;
                while ($currParent != -1 && $iLoop < 7) {
                    // code...
                    $pathTitle = $title_data[$currParent - 1]['toc'];
                    $pathLevel = $title_data[$currParent - 1]['level'];
                    $path[] = ['book' => $book, 'paragraph' => $currParent, 'title' => $pathTitle, 'level' => $pathLevel];
                    $currParent = $title_data[$currParent - 1]['parent'];
                    $iLoop++;
                }

                // 插入书名
                if (count($path) > 0) {
                    $bookPara = end($path)['paragraph'];
                } else {
                    $bookPara = $paragraph;
                }

                $pcd_book = BookTitle::where('book', $book)
                    ->where('paragraph', $bookPara)
                    ->first();
                if ($pcd_book) {
                    if (empty($pcd_book)) {
                        Log::error('no pcd book:'.$book.'-'.$bookPara);
                    }
                    $book_id = $pcd_book->sn;
                    if (! empty($book_id)) {
                        $newData['pcd_book_id'] = $book_id;
                    }
                    $path[] = ['book' => $book_id, 'paragraph' => $book_id, 'title' => $pcd_book->title, 'level' => 0];
                }

                // 将路径反向
                $path1 = [];
                for ($i = count($path) - 1; $i >= 0; $i--) {
                    // code...
                    $path1[] = $path[$i];
                }
                $newData['path'] = $path1;

                PaliText::where('book', $book)
                    ->where('paragraph', $paragraph)
                    ->update($newData);

                if ($curr_level > 0 && $curr_level < 8) {
                    $paragraph_info[] = [$book, $paragraph, $length, $prev, $next, $parent];
                }
            }
        }

        $this->info('all done in '.time() - $startTime.'s');
        Log::info('all done in  '.time() - $startTime.'s');

        return 0;
    }
}