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#include "sword.h"
#include <libbible.h>
#include <sstream>
#include <wctype.h>

using namespace std;

bool isNoMods;

Sword::Sword() {
    auto mods = libbible::getModules();
    isNoMods = mods.empty();
    defaultMod = libbible::settingsRead("module");
    if(mods.find(defaultMod) == mods.end()) {
        defaultMod = string();
        if(! mods.empty()) {
            defaultMod = mods.begin()->first;
        }
    }
}

Sword::~Sword() {}

vector<string> Sword::getModules() {
    vector<string> mods;
    auto modsInstalled = libbible::getModules();
    for(auto pair : modsInstalled) {
        mods.push_back(pair.first);
    }
    return mods;
}

void Sword::setModule(string version) {
    defaultMod = version;
}

void Sword::fillBuffer(string ref, Glib::RefPtr<Gtk::TextBuffer> buf) {
    buf->set_text(""); // Clear contents

    if(isNoMods) {
        auto iter = buf->get_iter_at_offset(0);
        iter = buf->insert_markup(iter, "<big><b>No modules installed.</b></big>\n");
        iter = buf->insert_markup(iter, "Please download some modules at:\n");
        iter = buf->insert_markup(iter, "\thttp://crosswire.org/sword/modules/ModDisp.jsp?modType=Bibles\n");
        iter = buf->insert_markup(iter, "Then install them using the menu in the upper right corner, or use the built-in installer to download and install modules.");
        return;
    }

    auto texts = libbible::getText(libbible::passage{.modName = defaultMod, .reference = ref});

    auto iter = buf->get_iter_at_offset(0);

    auto verseSize = buf->create_tag();
    verseSize->property_size() = libbible::settingsReadInt("fontsize");
    if(verseSize->property_size() == 0) {
	verseSize->property_size() = 12000;
    }

    auto verseScale = buf->create_tag();
    verseScale->property_scale() = 0.8;
    auto verseOffset = buf->create_tag();
    verseOffset->property_rise() = 3000;
    auto indent = buf->create_tag();
    indent->property_left_margin() = 40;
    auto redletter = buf->create_tag();
    redletter->property_foreground_gdk() = Gdk::Color("red");

    int verse = 0;
    string indentString = "    ";
    bool isNewline = true;
    for(auto tex : texts) {
        std::vector<Glib::RefPtr<Gtk::TextBuffer::Tag>> tags = {verseSize};
        bool isParagraph = false;
        bool isIndent = false;
        bool isDivineName = false;
        for(string modifier : tex.modifiers) {
            if(modifier == "paragraph") {
                isParagraph = true;
            } else if (modifier == "line indent0") {
                isIndent = true;
            } else if (modifier == "divineName") {
                isDivineName = true;
            } else if (modifier == "wordsOfJesus") {
                tags.push_back(redletter);
            }
        }
        if(isIndent) {
            isParagraph = false;
            if(isNewline) {
                tags.push_back(indent);
            }
        }
        if(isParagraph) {
            iter = buf->insert_with_tags(iter, indentString, tags);
        }
        if(tex.verse != verse) {
            std::vector<Glib::RefPtr<Gtk::TextBuffer::Tag>> verseTags(tags.begin(), tags.end());
            verseTags.push_back(verseScale);
            verseTags.push_back(verseOffset);
            iter = buf->insert_with_tags(iter, " " + std::to_string(tex.verse), verseTags);
        }
        verse = tex.verse;
        if(isDivineName) {
            // There's no small caps support. Sigh. We do fake small caps instead.
            // Because i lazy, first letter is normal caps and rest small caps, always.
            transform(tex.text.begin(), tex.text.end(), tex.text.begin(), ::toupper);
            iter = buf->insert_with_tags(iter, tex.text.substr(0, 1), tags);
            auto tag = buf->create_tag();
            tag->property_scale() = 0.75;
            tags.push_back(tag);
            iter = buf->insert_with_tags(iter, tex.text.substr(1), tags);
        } else {
            iter = buf->insert_with_tags(iter, tex.text, tags);
        }
        if(tex.text.back() == '\n') {
            isNewline = true;
        } else {
            isNewline = false;
        }
    }
}

void Sword::getConfig(string book, int chapter, struct config *conf) {
    if(isNoMods) {
        conf->chapter = 0;
        conf->book = "";
        conf->bookFull = "";
        conf->maxChapter = 0;
        conf->version = "";
    } else {
        auto passages = libbible::getPassages(defaultMod, book);
        conf->chapter = chapter;
        conf->book = passages[0].bookShort;
        conf->bookFull = passages[0].book;
        conf->maxChapter = passages.back().chapterStart;
        conf->version = defaultMod;
    }
}

vector<string> Sword::getBooks() {
    if(isNoMods) {
        return vector<string>();
    }
    return libbible::getModules()[defaultMod];
}