<?php
namespace filter_bibleversesnwt;

class bible {

    protected $books = null;
    protected $lang = "en";

    static function languages(){
        $langcodes = ["nl","en"];

        $languages = [];
        foreach($langcodes as $l){
            $languages[$l] = get_string("l_".$l,'filter_bibleversesnwt');
        }
        return $languages;
    }

    private function wolhref($book,$chapter,$verse,$chapter_end,$verse_end=0){
        $book = ($book > 0)?$book:1;
        $chapter = ($chapter >0)?$chapter:1;
        $verse = ($verse > 0)?$verse:1;
        $verse_end = ($verse_end > $verse)?$verse_end:$verse;

        if($this->lang == "nl"){
            return "https://wol.jw.org/nl/wol/b/r18/lp-o/nwtsty/{$book}/{$chapter}#v={$book}:{$chapter}:{$verse}-{$book}:{$chapter_end}:{$verse_end}";
        }
        else { // if $this->lang == 'en'
            return "https://wol.jw.org/nl/wol/b/r1/lp-e/nwtsty/{$book}/{$chapter}#v={$book}:{$chapter}:{$verse}-{$book}:{$chapter_end}:{$verse_end}";
        }
    }

    static function booknames($lang){
        $books = [
            "nl" => [
                [], // Intentionally left blank
                ["genesis","ge","gen"],
                ["exodus","ex"],
                ["leviticus","le","lev"],
                ["numeri","nu","num"],
                ["deuteronomium","de","deut"],
                ["jozua","joz"],
                ["rechters","re"],
                ["ruth","ru"],
                ["1 samuël","1 samuel","1sa","1sam","1 sam"],
                ["2 samuël","2 samuel","2sa","2sam","1 sam"],
                ["1 koningen","1kon","1 kon"],
                ["2 koningen","2kon","2 kon"],
                ["1 kronieken","1kr","1kron","1 kron"],
                ["2 kronieken","2kr","2kron","2 kron"],
                ["ezra","ezr"],
                ["nehemia","ne","neh"],
                ["esther","es"],
                ["job"],
                ["psalm","ps"],
                ["spreuken","sp", "spr"],
                ["prediker","pr","pred"],
                ["hooglied","hgl","hoogl"],
                ["jesaja","jes"],
                ["jeremia","jer"],
                ["klaagliederen","klg"],
                ["ezechiël","ezechiel","ez","eze","ezech"],
                ["daniël","daniel","da","dan"],
                ["hosea","ho","hos"],
                ["joël","joel","joë","joe"],
                ["amos","am"],
                ["obadja","ob"],
                ["jona","jon"],
                ["micha","mi","mic"],
                ["nahum","na", "nah"],
                ["habakuk","hab"],
                ["zefanja","ze"],
                ["haggai","haggaï","hag"],
                ["zacharia","za","zach"],
                ["maleachi","mal"],
                ["mattheus","mt", "mat","matt"],
                ["markus","mr"],
                ["lukas","lk"],
                ["johannes","jo", "joh"],
                ["handelingen","han"],
                ["romeinen","ro", "rom"],
                ["1 korinthiërs","1 korinthiers","1kor","1 kor"],
                ["2 korinthiërs","2 korinthiers","2kor","2 kor"],
                ["galaten","ga"],
                ["efziërs","efeziers","ef"],
                ["filippenzen","fil"],
                ["kolossenzen","kol"],
                ["1 thessalonicenzen","1th","1 thess", "1thess"],
                ["2 thessalonicenzen","2th","2 thess", "2thess"],
                ["1 timotheüs","1 timotheus","1ti", "1tim", "1 tim"],
                ["2 timotheüs","2 timotheus","2ti", "2tim", "2 tim"],
                ["titus","tit"],
                ["filemon","flm"],
                ["hebreeën","hebreeen","heb"],
                ["jakobus","jak"],
                ["1 petrus","1pe","1pet", "1 pet"],
                ["2 petrus","2pe","2pet", "2 pet"],
                ["1 johannes","1jo", "1joh","1 joh", "1 jo"],
                ["2 johannes","2jo", "2joh","2 joh", "2 jo"],
                ["3 johannes","3jo", "3joh","3 joh", "3 jo"],
                ["judas","ju", "jud"],
                ["openbaring","opb", "openb"],
            ],
            "en" => [
                [], // Intentionally left blank
                ["genesis","ge","gen"],
                ["exodus","ex"],
                ["leviticus","le","lev"],
                ["numbers","nu","num"],
                ["deuteronomium","de","deut"],
                ["joshua","jos"],
                ["rechters","jg"],
                ["ruth","ru"],
                ["1 samuel","1sa",],
                ["2 samuel","2sa",],
                ["1 kings","1ki",],
                ["2 kings","2ki",],
                ["1 chronicles","1ch",],
                ["2 chronicles","2ch",],
                ["ezra","ezr"],
                ["nehemia","ne","neh"],
                ["esther","es"],
                ["job"],
                ["psalm","ps"],
                ["proverbs","pr"],
                ["ecclesiastics","ec"],
                ["song of solomon","ca"],
                ["isaiah","isa"],
                ["jeremiah","jer"],
                ["lamentations","la"],
                ["ezekiel","eze"],
                ["daniel","da"],
                ["hosea","ho"],
                ["joel","joe"],
                ["amos","am"],
                ["obadiah","ob"],
                ["jonah","jon"],
                ["micah","mic"],
                ["nahum","na"],
                ["habakkuk","hab"],
                ["zephaniah","zep"],
                ["haggai","haggaï","hag"],
                ["zechariah","zec"],
                ["malachi","mal"],
                ["matthew","mt"],
                ["mark","mr"],
                ["luke","lk"],
                ["john","joh"],
                ["acts","ac"],
                ["romans","ro"],
                ["1 corinthians","1co"],
                ["2 corinthians","2co"],
                ["galatians","ga"],
                ["ephesians","eph"],
                ["philippians","php"],
                ["colossians","col"],
                ["1 thessalonians","1th"],
                ["2 thessalonians","2th"],
                ["1 timothy","1ti"],
                ["2 timothy","2ti"],
                ["titus","tit"],
                ["philemon","phm"],
                ["hebrews","heb"],
                ["james","jas"],
                ["1 peter","1pe"],
                ["2 peter","2pe"],
                ["1 john","1jo"],
                ["2 john","2jo"],
                ["3 john","3jo"],
                ["jude","ju"],
                ["revelation","re"],
            ]
        ];

        return (array_key_exists($lang,$books))?$books[$lang]:$books["en"];
    }

    function __construct($lang="en"){
        $this->books = static::booknames($lang);
        $this->lang = $lang;
    }

    function parse($content){
        for($booknum=1;$booknum<count($this->books);$booknum++){
            $names = $this->books[$booknum];

            foreach($names as $bookname){
                $re = "/(\b{$bookname})\h*?(\d*):(\d+)(?:\h*[-,]\h*(\d+)(?::(\d+))?)?/i";

                // First check the presence of the bookname before 
                if ( ($ix = stripos($content,$bookname)) !== false ) {
                    $lang = $this->lang;
                    $content = preg_replace_callback($re,function ($m) use ($lang,$booknum, $bookname){
                        $book = strtolower(trim($m[1]));
                        $ch = $m[2];
                        $verse = $m[3];
                        $ch_end = (count($m)>5)?$m[4]:$ch;
                        $verse_to = (count($m)>5)?$m[5]:((count($m)>4)?$m[4]:0);

                        if($book == $bookname){ // Check if name matches
                            $href = $this->wolhref($booknum, $ch, $verse, $ch_end, $verse_to);
                            $versedata = json_encode([  "lang" => $lang, "book" => $booknum, 
                                                        "ch" => $ch, "verse" => $verse, 
                                                        "ch_end" => $ch_end, "verse_end" => $verse_to, 
                                                        "wolhref" => $href]);
                            return "<a href='{$href}' data-verseinfo='{$versedata}' target='_bible_' class='bible-link'>".$m[0]."</a>";
                        } else {
                            return $m[0];
                        }
                    },$content);
                }

            }
        }
        return $content;


    }


}