// This code was written by Jeremy and Jason Wall.
// Feel free to use, and if you can, include a link back to www.walljm.com
// Jason@walljm.com // www.walljm.com
// Jeremy@marzhillstudios.com // jeremy.marzhillstudios.com

/// <reference path="types.ts"/>
class StringUtils {
    public static trim(str: string): string {
        return str.replace(/^\s+|\s+$/g, "");
    }

    public static ltrim(str: string): string {
        return str.replace(/^\s+/, "");
    }

    public static rtrim(str: string): string {
        return str.replace(/\s+$/, "");
    }
}

export class Reference {
    private ref: string;
    public Section: Section;

    public errAcc: string;

    constructor(reference: string) {
        this.Section = {
            start: {
                book: -1,
                bookname: "",
                longbookname: "",
                lastchapter: -1,
                chapter: "",
                verse: ""
            },
            end: {
                book: -1,
                bookname: "",
                longbookname: "",
                lastchapter: -1,
                chapter: "",
                verse: ""
            }
        };
        this.ref = reference.toLowerCase().trim();
        this.parseReference();

        if (this.Section.end.book == -1) {
            this.Section.end.book = this.Section.start.book;
            this.Section.end.bookname = this.Section.start.bookname;
            this.Section.end.longbookname = this.Section.start.longbookname;
            this.Section.end.lastchapter = this.Section.start.lastchapter;
        }

        if (this.Section.end.chapter == "") this.Section.end.chapter = this.Section.start.chapter;
        if (
            Number(this.Section.start.verse) > Number(this.Section.end.verse) &&
            this.Section.start.chapter == this.Section.end.chapter &&
            this.Section.start.book == this.Section.end.book
            ) this.Section.end.verse = this.Section.start.verse;
        if (this.Section.start.verse == "") this.Section.start.verse = "1";
        if (this.Section.end.verse == "") this.Section.end.verse = "*";
    }

    private parseReference() {
        this.parseBook(false);
        this.parseFirstNum(false);
        let foundFirstVerse = this.ref.search(/:.*-/) != -1;
        this.maybeParseSecondNum(false);
        this.maybeParseRangeSep();
        let foundSecondBook = this.ref.search(/\w\s+\d/i) != -1;
        
        this.maybeParseBook(true);
        this.maybeParseFirstNumOrVerse(foundSecondBook, foundFirstVerse, true);
        this.maybeParseSecondNum(true);
    };

    private parseBook(isEnd?: boolean) {
        this.ref = this.ref.toLowerCase().trim();
        let thing = this.Section.start;
        if (isEnd) thing = this.Section.end;

        let fbook = this.ref.substring(0, this.ref.search(/\w\s+\d/i) + 1);
        if (!fbook)
            fbook = this.ref;
        this.ref = this.ref.slice(this.ref.search(/\w\s+\d/i) + 1);

        if (fbook.search(/\b(genesis|gen|ge|gn)\b/i) != -1) {
            thing.book = 1;
            thing.bookname = "Genesis";
            thing.longbookname = "Genesis";
            thing.lastchapter = 50;
        }
        if (fbook.search(/\b(exodus|ex|exo|exod|exd)\b/i) != -1) {
            thing.book = 2;
            thing.bookname = "Exodus";
            thing.longbookname = "Exodus";
            thing.lastchapter = 40;
        }
        if (fbook.search(/\b(leviticus|lev|le|levi|lv)\b/i) != -1) {
            thing.book = 3;
            thing.bookname = "Leviticus";
            thing.longbookname = "Leviticus";
            thing.lastchapter = 27;
        }
        if (fbook.search(/\b(numbers|num|nu|numb|number)\b/i) != -1) {
            thing.book = 4;
            thing.bookname = "Numbers";
            thing.longbookname = "Book_of_Numbers";
            thing.lastchapter = 36;
        }
        if (fbook.search(/\b(deuteronomy|deut|de|dt|deu)\b/i) != -1) {
            thing.book = 5;
            thing.bookname = "Deuteronomy";
            thing.longbookname = "Deuteronomy";
            thing.lastchapter = 34;
        }
        if (fbook.search(/\b(joshua|josh|jos)\b/i) != -1) {
            thing.book = 6;
            thing.bookname = "Joshua";
            thing.longbookname = "Book_of_Joshua";
            thing.lastchapter = 24;
        }
        if (fbook.search(/\b(judges|jud|ju|jdg|judg)\b/i) != -1) {
            thing.book = 7;
            thing.bookname = "Judges";
            thing.longbookname = "Book_of_Judges";
            thing.lastchapter = 21;
        }
        if (fbook.search(/\b(ruth|ru)\b/i) != -1) {
            thing.book = 8;
            thing.bookname = "Ruth";
            thing.longbookname = "Book_of_Ruth";
            thing.lastchapter = 4;
        }
        if (fbook.search(/\b(1|i|1st|first)\s*(samuel|sa|sam|sml)\b/i) != -1) {
            thing.book = 9;
            thing.bookname = "1 Samuel";
            thing.longbookname = "First_Samuel";
            thing.lastchapter = 31;
        }
        if (fbook.search(/\b(2|ii|2nd|second|sec)\s*(samuel|sa|sam|sml)\b/i) != -1) {
            thing.book = 10;
            thing.bookname = "2 Samuel";
            thing.longbookname = "Second_Samuel";
            thing.lastchapter = 24;
        }
        if (fbook.search(/\b(1|i|1st|first)\s*(kings|king|kgs|kn|k|ki)\b/i) != -1) {
            thing.book = 11;
            thing.bookname = "1 Kings";
            thing.longbookname = "First_Kings";
            thing.lastchapter = 22;
        }
        if (fbook.search(/\b(2|ii|2nd|second|sec)\s*(kings|king|kgs|kn|k|ki)\b/i) != -1) {
            thing.book = 12;
            thing.bookname = "2 Kings";
            thing.longbookname = "Second_Kings";
            thing.lastchapter = 25;
        }
        if (fbook.search(/\b(1|i|1st|first)\s*(chronicles|chron|ch|chr)\b/i) != -1) {
            thing.book = 13;
            thing.bookname = "1 Chronicles";
            thing.longbookname = "First_Chronicles";
            thing.lastchapter = 29;
        }
        if (fbook.search(/\b(2|ii|2nd|second|sec)\s*(chronicles|chron|ch|chr)\b/i) != -1) {
            thing.book = 14;
            thing.bookname = "2 Chronicles";
            thing.longbookname = "Second_Chronicles";
            thing.lastchapter = 36;
        }
        if (fbook.search(/\b(ezra|ez|ezr)\b/i) != -1) {
            thing.book = 15;
            thing.bookname = "Ezra";
            thing.longbookname = "Book_of_Ezra";
            thing.lastchapter = 10;
        }
        if (fbook.search(/\b(nehemiah|neh|ne|nehamiah)\b/i) != -1) {
            thing.book = 16;
            thing.bookname = "Nehemiah";
            thing.longbookname = "Book_of_Nehemiah";
            thing.lastchapter = 13;
        }
        if (fbook.search(/\b(esther|est|es|esth)\b/i) != -1) {
            thing.book = 17;
            thing.bookname = "Esther";
            thing.longbookname = "Book_of_Esther";
            thing.lastchapter = 10;
        }
        if (fbook.search(/\b(job|jo|jb)\b/i) != -1) {
            thing.book = 18;
            thing.bookname = "Job";
            thing.longbookname = "Book_of_Job";
            thing.lastchapter = 42;
        }
        if (fbook.search(/\b(psalms|ps|psa|psalm|psm)\b/i) != -1) {
            thing.book = 19;
            thing.bookname = "Psalm";
            thing.longbookname = "Psalm";
            thing.lastchapter = 150;
        }
        if (fbook.search(/\b(proverbs|prov|pr|pro|proverb|prv|prvbs)\b/i) != -1) {
            thing.book = 20;
            thing.bookname = "Proverbs";
            thing.longbookname = "Book_of_Proverbs";
            thing.lastchapter = 31;
        }
        if (fbook.search(/\b(ecclesiastes|eccl|ecc|eccles|ec|ecl|ecclesiaste)\b/i) != -1) {
            thing.book = 21;
            thing.bookname = "Ecclesiastes";
            thing.longbookname = "Ecclesiastes";
            thing.lastchapter = 12;
        }
        if (fbook.search(/\b(song\sof\ssolomon|song\sof\ssongs|sos|ss|son|so|song|songs)\b/i) != -1) {
            thing.book = 22;
            thing.bookname = "Song of Solomon";
            thing.longbookname = "Song_of_Solomon";
            thing.lastchapter = 8;
        }
        if (fbook.search(/\b(isaiah|is|is|isah|isai|ia)\b/i) != -1) {
            thing.book = 23;
            thing.bookname = "Isaiah";
            thing.longbookname = "Book_of_Isaiah";
            thing.lastchapter = 66;
        }
        if (fbook.search(/\b(jerimiah|jeremiah|jer|je|jere)\b/i) != -1) {
            thing.book = 24;
            thing.bookname = "Jeremiah";
            thing.longbookname = "Book_of_Jeremiah";
            thing.lastchapter = 52;
        }
        if (fbook.search(/\b(lamentations|lam|la|lamentation)\b/i) != -1) {
            thing.book = 25;
            thing.bookname = "Lamentations";
            thing.longbookname = "Book_of_Lamentations";
            thing.lastchapter = 5;
        }
        if (fbook.search(/\b(ezekiel|eze|ez|ezk|ezek)\b/i) != -1) {
            thing.book = 26;
            thing.bookname = "Ezekiel";
            thing.longbookname = "Book_of_Ezekiel";
            thing.lastchapter = 48;
        }
        if (fbook.search(/\b(daniel|dan|dn|dl|da)\b/i) != -1) {
            thing.book = 27;
            thing.bookname = "Daniel";
            thing.longbookname = "Book_of_Daniel";
            thing.lastchapter = 12;
        }
        if (fbook.search(/\b(hosea|hos|ho)\b/i) != -1) {
            thing.book = 28;
            thing.bookname = "Hosea";
            thing.longbookname = "Book_of_Hosea";
            thing.lastchapter = 14;
        }
        if (fbook.search(/\b(joel|joe|jl)\b/i) != -1) {
            thing.book = 29;
            thing.bookname = "Joel";
            thing.longbookname = "Book_of_Joel";
            thing.lastchapter = 3;
        }
        if (fbook.search(/\b(amos|am|amo)\b/i) != -1) {
            thing.book = 30;
            thing.bookname = "Amos";
            thing.longbookname = "Book_of_Amos";
            thing.lastchapter = 9;
        }
        if (fbook.search(/\b(obadiah|oba|ob|obad)\b/i) != -1) {
            thing.book = 31;
            thing.bookname = "Obadiah";
            thing.longbookname = "Book_of_Obadiah";
            thing.lastchapter = 1;
        }
        if (fbook.search(/\b(jonah|jnh|jon)\b/i) != -1) {
            thing.book = 32;
            thing.bookname = "Jonah";
            thing.longbookname = "Book_of_Jonah";
            thing.lastchapter = 4;
        }
        if (fbook.search(/\b(micah|mic|mi)\b/i) != -1) {
            thing.book = 33;
            thing.bookname = "Micah";
            thing.longbookname = "Book_of_Micah";
            thing.lastchapter = 7;
        }
        if (fbook.search(/\b(nahum|nah|na)\b/i) != -1) {
            thing.book = 34;
            thing.bookname = "Nahum";
            thing.longbookname = "Book_of_Nahum";
            thing.lastchapter = 3;
        }
        if (fbook.search(/\b(habakkuk|hab|ha|habakuk)\b/i) != -1) {
            thing.book = 35;
            thing.bookname = "Habakkuk";
            thing.longbookname = "Book_of_Habakkuk";
            thing.lastchapter = 3;
        }
        if (fbook.search(/\b(zephaniah|zeph|zep)\b/i) != -1) {
            thing.book = 36;
            thing.bookname = "Zephaniah";
            thing.longbookname = "Book_of_Zephaniah";
            thing.lastchapter = 3;
        }
        if (fbook.search(/\b(haggia|hag|hg|haggai)\b/i) != -1) {
            thing.book = 37;
            thing.bookname = "Haggai";
            thing.longbookname = "Book_of_Haggai";
            thing.lastchapter = 2;
        }
        if (fbook.search(/\b(zechariah|zech|zch|zec)\b/i) != -1) {
            thing.book = 38;
            thing.bookname = "Zechariah";
            thing.longbookname = "Book_of_Zechariah";
            thing.lastchapter = 14;
        }
        if (fbook.search(/\b(malachi|mal)\b/i) != -1) {
            thing.book = 39;
            thing.bookname = "Malachi";
            thing.longbookname = "Book_of_Malachi";
            thing.lastchapter = 4;
        }
        if (fbook.search(/\b(matthew|mt|matt|mat)\b/i) != -1) {
            thing.book = 40;
            thing.bookname = "Matthew";
            thing.longbookname = "Gospel_of_Matthew";
            thing.lastchapter = 28;
        }
        if (fbook.search(/\b(mark|mrk|mk|mr)\b/i) != -1) {
            thing.book = 41;
            thing.bookname = "Mark";
            thing.longbookname = "Gospel_of_Mark";
            thing.lastchapter = 16;
        }
        if (fbook.search(/\b(luke|lu|lke|luk|lk)\b/i) != -1) {
            thing.book = 42;
            thing.bookname = "Luke";
            thing.longbookname = "Gospel_of_Luke";
            thing.lastchapter = 24;
        }
        if (fbook.search(/\b(john|jn|jhn)\b/i) != -1) {
            thing.book = 43;
            thing.bookname = "John";
            thing.longbookname = "Gospel_of_John";
            thing.lastchapter = 21;
        }
        if (fbook.search(/\b(acts|ac|act)\b/i) != -1) {
            thing.book = 44;
            thing.bookname = "Acts";
            thing.longbookname = "Acts_of_the_Apostles";
            thing.lastchapter = 28;
        }
        if (fbook.search(/\b(romans|rom|ro|rm|roman)\b/i) != -1) {
            thing.book = 45;
            thing.bookname = "Romans";
            thing.longbookname = "Epistle_to_the_Romans";
            thing.lastchapter = 16;
        }
        if (fbook.search(/\b(1|i|1st|first)\s*(corinthian|cor|corinthians|corinth|corin|corth|corint)\b/i) != -1) {
            thing.book = 46;
            thing.bookname = "1 Corinthians";
            thing.longbookname = "First_Epistle_to_the_Corinthians";
            thing.lastchapter = 16;
        }
        if (fbook.search(/\b(2|ii|2nd|second|sec)\s*(corinthian|cor|corinthians|corinth|corin|corth|corint)\b/i) != -1) {
            thing.book = 47;
            thing.bookname = "2 Corinthians";
            thing.longbookname = "Second_Epistle_to_the_Corinthians";
            thing.lastchapter = 13;
        }
        if (fbook.search(/\b(galatians|galatian|galations|gal|ga|gala|galation|galat)\b/i) != -1) {
            thing.book = 48;
            thing.bookname = "Galatians";
            thing.longbookname = "Epistle_to_the_Galatians";
            thing.lastchapter = 6;
        }
        if (fbook.search(/\b(ephesians|eph|ep|ephes|ephe|ephs)\b/i) != -1) {
            thing.book = 49;
            thing.bookname = "Ephesians";
            thing.longbookname = "Epistle_to_the_Ephesians";
            thing.lastchapter = 6;
        }
        if (fbook.search(/\b(philippians|phi|phil|ph|philip)\b/i) != -1) {
            thing.book = 50;
            thing.bookname = "Philippians";
            thing.longbookname = "Epistle_to_the_Philippians";
            thing.lastchapter = 4;
        }
        if (fbook.search(/\b(colossians|col|co|colossian|colos|coloss)\b/i) != -1) {
            thing.book = 51;
            thing.bookname = "Colossians";
            thing.longbookname = "Epistle_to_the_Colossians";
            thing.lastchapter = 4;
        }
        if (fbook.search(/\b(1|i|1st|first)\s*(thessalonians|the|thessa|thessalonian|thes|thess|th)\b/i) != -1) {
            thing.book = 52;
            thing.bookname = "1 Thessalonians";
            thing.longbookname = "First_Epistle_to_the_Thessalonians";
            thing.lastchapter = 5;
        }
        if (fbook.search(/\b(2|ii|2nd|second|sec)\s*(thessalonians|the|thessa|thessalonian|thes|thess|th)\b/i) != -1) {
            thing.book = 53;
            thing.bookname = "2 Thessalonians";
            thing.longbookname = "Second_Epistle_to_the_Thessalonians";
            thing.lastchapter = 3;
        }
        if (fbook.search(/\b(1|i|1st|first)\s*(timothy|tim|ti|timoth|tm)\b/i) != -1) {
            thing.book = 54;
            thing.bookname = "1 Timothy";
            thing.longbookname = "First_Epistle_to_Timothy";
            thing.lastchapter = 6;
        }
        if (fbook.search(/\b(2|ii|2nd|second|sec)\s*(timothy|tim|timoth|tm)\b/i) != -1) {
            thing.book = 55;
            thing.bookname = "2 Timothy";
            thing.longbookname = "Second_Epistle_to_Timothy";
            thing.lastchapter = 4;
        }
        if (fbook.search(/\b(titus|tit)\b/i) != -1) {
            thing.book = 56;
            thing.bookname = "Titus";
            thing.longbookname = "Epistle_to_Titus";
            thing.lastchapter = 3;
        }
        if (fbook.search(/\b(philemon|phlmn|phl|phm|phile|philem)\b/i) != -1) {
            thing.book = 57;
            thing.bookname = "Philemon";
            thing.longbookname = "Epistle_to_Philemon";
            thing.lastchapter = 1;
        }
        if (fbook.search(/\b(hebrews|heb|he|hebrew)\b/i) != -1) {
            thing.book = 58;
            thing.bookname = "Hebrews";
            thing.longbookname = "Epistle_to_the_Hebrews";
            thing.lastchapter = 13;
        }
        if (fbook.search(/\b(james|jam|ja|jas|jms|jame|jm)\b/i) != -1) {
            thing.book = 59;
            thing.bookname = "James";
            thing.longbookname = "Epistle_of_James";
            thing.lastchapter = 5;
        }
        if (fbook.search(/\b(1|i|1st|first)\s*(peter|pe|pet|pete|pt|p)\b/i) != -1) {
            thing.book = 60;
            thing.bookname = "1 Peter";
            thing.longbookname = "First_Epistle_of_Peter";
            thing.lastchapter = 5;
        }
        if (fbook.search(/\b(2|ii|2nd|second|sec)\s*(peter|pe|pet|pete|pt|p)\b/i) != -1) {
            thing.book = 61;
            thing.bookname = "2 Peter";
            thing.longbookname = "Second_Epistle_of_Peter";
            thing.lastchapter = 3;
        }
        if (fbook.search(/\b(1|i|1st|first)\s*(john|jn|jo)\b/i) != -1) {
            thing.book = 62;
            thing.bookname = "1 John";
            thing.longbookname = "First_Epistle_of_John";
            thing.lastchapter = 5;
        }
        if (fbook.search(/\b(2|ii|2nd|second|sec)\s*(john|jn|jo)\b/i) != -1) {
            thing.book = 63;
            thing.bookname = "2 John";
            thing.longbookname = "Second_Epistle_of_John";
            thing.lastchapter = 1;
        }
        if (fbook.search(/\b(3|iii|3rd|third)\s*(john|jn|jo)\b/i) != -1) {
            thing.book = 64;
            thing.bookname = "3 John";
            thing.longbookname = "Third_Epistle_of_John";
            thing.lastchapter = 1;
        }
        if (fbook.search(/\b(jude|jud|ju)\b/i) != -1) {
            thing.book = 65;
            thing.bookname = "Jude";
            thing.longbookname = "Epistle_of_Jude";
            thing.lastchapter = 1;
        }
        if (fbook.search(/\b(revelation|rev|re|revelations|rv)\b/i) != -1) {
            thing.book = 66;
            thing.bookname = "Revelation";
            thing.longbookname = "Book_of_Revelations";
            thing.lastchapter = 22;
        }
    }

    private parseFirstNum(isEnd: boolean) {
        let thing = this.Section.start;
        if (isEnd) thing = this.Section.end;

        this.ref = StringUtils.ltrim(this.ref);
        let found = false;
        for (let i = 0; i <= this.ref.length; i++) {
            let c = this.ref.charAt(i);
            // Grab characters until we hit a non digit.
            if ("0".charAt(0) <= c && c <= "9".charAt(0)) {
                found = true;
                thing.chapter = thing.chapter.concat(c);
            } else {
                // if the chapter is longer than 3 digits it's an error
                if (thing.chapter.length > 3) {
                    this.errAcc = "Chapter too long\"" + thing.chapter + "\".";
                    return;
                } else if (!found) {
                    this.errAcc = "No chapter found" + this.ref;
                }
                this.ref = this.ref.slice(i);
                return;
            }
        }
    }

    private parseSecondNum(skipColon?: boolean, isEnd?: boolean) {
        let thing = this.Section.start;
        if (isEnd) thing = this.Section.end;

        this.ref = StringUtils.ltrim(this.ref.toLowerCase());
        if (!skipColon) {
            if (this.ref[0] != ":") {
                return;
            }
            this.ref = this.ref.slice(1);
        }
        this.ref = StringUtils.ltrim(this.ref.toLowerCase());
        if (this.ref[0] == "*") {
            thing.verse = "*";
            this.ref = this.ref.slice(1);
            return;
        }
        for (var i = 0; i <= this.ref.length; i++) {
            let c = this.ref.charAt(i);
            if ("0".charAt(0) <= c && c <= "9".charAt(0)) {
                thing.verse = thing.verse.concat(c);
            } else {
                if (thing.verse.length > 3) {
                    this.errAcc = "Verse too long \"" + thing.verse + "\".";
                    return "";
                }
                this.ref = this.ref.slice(i);
                return;
            }
        }
    }

    private maybeParseBook(isEnd: boolean) {
        return this.maybeDo(() => {
            if (this.ref.search(/\w\s+\d/i) == -1) {
                this.Section.end.book = this.Section.start.book;
                this.Section.end.bookname = this.Section.start.bookname;
                this.Section.end.longbookname = this.Section.start.longbookname;
                this.Section.end.lastchapter = this.Section.start.lastchapter;
            }
            else {
                this.parseBook(isEnd)
            }
        });
    };

    private maybeParseSecondNum(isEnd?: boolean) {
        return this.maybeDo(() => {
            this.parseSecondNum(false, isEnd);
        });
    };

    private maybeParseFirstNumOrVerse(foundSecondBook: boolean, foundFirstVerse: boolean, isEnd: boolean) {
        let self = this;
        return this.maybeDo(() => {
            if (self.Section.end.book == self.Section.start.book) {
                if (self.ref.search(/:/) != -1 || foundSecondBook || !foundFirstVerse) {
                    self.parseFirstNum(isEnd);
                }
                self.parseSecondNum(true, isEnd);
            }
        });
    };

    private maybeParseRangeSep() {
        let self = this;
        return this.maybeDo(() => {
            if (self.ref[0] == "-") {
                self.ref = StringUtils.ltrim(self.ref.slice(1));
            }
        });
    };

    private maybeDo(f) {
        let func = f;
        this.ref = StringUtils.ltrim(this.ref.toLowerCase());
        if (this.ref != "") {
            func();
        }
    };

    public toString() {
        // get the starting book, chapter, verse
        let ref = this.Section.start.bookname.concat(" ").
            concat(this.Section.start.chapter).concat(":").
            concat(this.Section.start.verse);

        if (this.Section.start.chapter == this.Section.end.chapter &&
            this.Section.start.verse == this.Section.end.verse &&
            this.Section.start.book == this.Section.end.book)
        {
            return ref;
        }

        if (this.Section.start.chapter == this.Section.end.chapter &&
            this.Section.start.verse != this.Section.end.verse &&
            this.Section.start.book == this.Section.end.book)
        {
            return ref.concat(" - ").concat(this.Section.end.verse);
        }

        if (this.Section.start.book != this.Section.end.book) {
            ref = ref.concat(" - ").concat(this.Section.end.bookname).concat(" ");
        }
        else {
            ref = ref.concat(" - ");
        }

        ref = ref.concat(this.Section.end.chapter).concat(":");

        return ref.concat(this.Section.end.verse);
    };
    
    public static bookName(booknum: number): string {
        let book = new Array();
        book[0] = "";
        book[1] = "Genesis";
        book[2] = "Exodus";
        book[3] = "Leviticus";
        book[4] = "Numbers";
        book[5] = "Deuteronomy";
        book[6] = "Joshua";
        book[7] = "Judges";
        book[8] = "Ruth";
        book[9] = "1 Samuel";
        book[10] = "2 Samuel";
        book[11] = "1 Kings";
        book[12] = "2 Kings";
        book[13] = "1 Chronicles";
        book[14] = "2 Chronicles";
        book[15] = "Ezra";
        book[16] = "Nehemiah";
        book[17] = "Esther";
        book[18] = "Job";
        book[19] = "Psalm";
        book[20] = "Proverbs";
        book[21] = "Ecclesiastes";
        book[22] = "Song of Songs";
        book[23] = "Isaiah";
        book[24] = "Jeremiah";
        book[25] = "Lamentations";
        book[26] = "Ezekiel";
        book[27] = "Daniel";
        book[28] = "Hosea";
        book[29] = "Joel";
        book[30] = "Amos";
        book[31] = "Obadiah";
        book[32] = "Jonah";
        book[33] = "Micah";
        book[34] = "Nahum";
        book[35] = "Habakkuk";
        book[36] = "Zephaniah";
        book[37] = "Haggai";
        book[38] = "Zechariah";
        book[39] = "Malachi";
        book[40] = "Matthew";
        book[41] = "Mark";
        book[42] = "Luke";
        book[43] = "John";
        book[44] = "Acts";
        book[45] = "Romans";
        book[46] = "1 Corinthians";
        book[47] = "2 Corinthians";
        book[48] = "Galatians";
        book[49] = "Ephesians";
        book[50] = "Philippians";
        book[51] = "Colossians";
        book[52] = "1 Thessalonians";
        book[53] = "2 Thessalonians";
        book[54] = "1 Timothy";
        book[55] = "2 Timothy";
        book[56] = "Titus";
        book[57] = "Philemon";
        book[58] = "Hebrews";
        book[59] = "James";
        book[60] = "1 Peter";
        book[61] = "2 Peter";
        book[62] = "1 John";
        book[63] = "2 John";
        book[64] = "3 John";
        book[65] = "Jude";
        book[66] = "Revelation";

        return book[booknum];
    }
}