#include "srcedit_defaulttext.h"
#include "keywordshighlighter.h"
#include <QComboBox>
#include <QFont>
#include <QGridLayout>
#include <QLabel>
#include <QMenu>
#include <QPushButton>
#include <QSpinBox>
#include <QTextStream>
#include <libConfig.h>

class GenException : public std::exception{
private:
    QString exception_reason;

public:
    GenException(const QString &msg):exception_reason(msg){}

    // exception interface
public:
    virtual const char *what() const noexcept override{
        return exception_reason.toLocal8Bit();
    }
};

using namespace Presents;
using namespace Enhancement;
using namespace Core;
using namespace Config;

QString DefaultTextEdit::file_suffix = "txt";

DefaultTextEdit::DefaultTextEdit(DocumentsManager *mgr, const Route &path, QObject *parent)
    : FilePresent(parent), mgr_inst(mgr), path_store(path), edit_square(new QTextEdit) {}

void  DefaultTextEdit::jumpTo(const QList<QString> &path)
{

}

Route DefaultTextEdit::accessPath() const { return path_store; }

#include "manager_docs.h"
void DefaultTextEdit::beforeClose() { mgr_inst->save(); }

DocumentsManager *DefaultTextEdit::docsManager() const { return mgr_inst; }

void DefaultTextEdit::applySetting(const QString &name, const Configration *cfg) { name_store = name; }

QString  DefaultTextEdit::name() const
{
    return name_store;
}

void  DefaultTextEdit::load(const QFileInfo &target_file)
{
    if(!target_file.exists())
        throw new SimpleException<bool>("解析错误", QString("指定文件未找到：%1").arg(target_file.absoluteFilePath()));

    target_file_path = target_file.canonicalFilePath();
    QFile bin(target_file_path);
    if(!bin.open(QIODevice::ReadOnly | QIODevice::Text))
        throw new SimpleException<bool>("解析错误", QString("指定文件无法打开：%1").arg(target_file.absoluteFilePath()));

    QTextStream tin(&bin);
    tin.setCodec("UTF-8");
    auto content = tin.readAll();
    this->edit_square->setText(content);
}

void  DefaultTextEdit::saveAs(const QString &path)
{
    if(!path.isEmpty())
        target_file_path = path;

    QFile bout(target_file_path);
    if(!bout.open(QIODevice::WriteOnly|QIODevice::Text))
        throw new GenException(QString("指定文件无法打开：%1").arg(target_file_path).toLocal8Bit());

    QTextStream tout(&bout);
    tout.setCodec("UTF-8");
    tout << this->edit_square->toPlainText();
    tout.flush();
}

QString  DefaultTextEdit::relativeTargetPath(const QDir &base) const
{
    if(target_file_path == "")
        return "";

    return base.relativeFilePath(target_file_path);
}

bool DefaultTextEdit::isModified() const { return true; }

QString DefaultTextEdit::absoluteTargetPath() const { return target_file_path; }

QWidget *DefaultTextEdit::widget() const { return edit_square; }

void DefaultTextEditFactory::create(const QFileInfo &target) {
    QFile base_f(target.canonicalFilePath());
    if (!base_f.exists()) {
        throw new SimpleException<bool>("新建错误", "指定路径不合法，文件不存在：" + target.absoluteFilePath());
    }

    if (!base_f.open(QIODevice::WriteOnly | QIODevice::Text))
        throw new SimpleException<bool>("新建错误", QString("指定文件无法建立：" + target.absoluteFilePath()));

    base_f.write(" ");
    base_f.flush();
    base_f.close();
}

QDialog *DefaultTextEditFactory::createTempConfigPanel(Config::Configration *cfg_port) {
    auto panel = new QDialog();
    panel->setWindowTitle("文本编辑器配置");
    auto layout = new QGridLayout(panel);
    layout->addWidget(new QLabel("选择字体", panel));
    layout->addWidget(new QPushButton("选择字体", panel));

    return panel;
}