//
// Created by zong on 5/18/22.
//

#include "main_window.h"
#include <QtSerialPort/QSerialPort>
#include <QtSerialPort/QSerialPortInfo>
#include <iostream>
#include <queue>
#include <QFile>
#include<QMessageBox>

static bool check_exist(QString str) {
    for (auto &port: QSerialPortInfo::availablePorts()) {
        if (str == port.portName())
            return true;
    }
    return false;
}

void main_window::setUiComponent() {
    this->ui = new Ui::MainWindow;
    ui->setupUi(this);
    portsComboBox = ui->portsComboBox;
    hexTextEdit = ui->hexTextEdit;
    tmpFilenameEdit = ui->tmpFilenameEdit;
    portOpenBtn = ui->portOpenBtn;
    portsComboBox = ui->portsComboBox;
    portUpdBtn = ui->portUpdBtn;
    statusbar = ui->statusbar;
    stopbitsComboBox = ui->stopbitsComboBox;
    QObject::connect(portOpenBtn, SIGNAL(clicked()), this, SLOT(open_port()));
    QObject::connect(portUpdBtn, SIGNAL(clicked()), this, SLOT(update_ui_port()));
}

main_window::main_window(QWidget *parent) : QMainWindow(parent) {
    setUiComponent();
    QObject::connect(&port, SIGNAL(readyRead()), this, SLOT(read_data()));
    QFont font("Courier");
    hexTextEdit->setFont(font);
    QSerialPortInfo info;
    auto tmp = QSerialPortInfo::availablePorts();
    portsComboBox->clear();
    for (auto &port: tmp) {
        qDebug() << port.portName();
        portsComboBox->addItem(port.portName());
    }
    hexTextEdit->setLineWrapMode(QTextEdit::FixedColumnWidth);
    hexTextEdit->setLineWrapColumnOrWidth(48);
    hexTextEdit->setWordWrapMode(QTextOption::WordWrap);
    hexTextEdit->setFontFamily("Mono");

}

main_window::~main_window() {
    delete ui;
}

void main_window::update_ui_port() {
    portsComboBox->clear();
    for (auto &port: QSerialPortInfo::availablePorts()) {
        portsComboBox->addItem(port.portName());
    }
}

void main_window::open_port() {
    if (is_open) {
        port.close();
        QFile file;
        auto filename = tmpFilenameEdit->text();
        file.setFileName(filename);
        file.open(QIODevice::Append);
        auto val = hexTextEdit->toPlainText();
        hexTextEdit->clear();
        file.write(val.toUtf8());
        file.close();
        is_open = false;
        portOpenBtn->setText("open");
        return;
    }
    if (portsComboBox->count() == 0) { return; }
    auto cur_port = portsComboBox->currentText();
    if (!check_exist(cur_port)) return;
    port.setPortName(cur_port);
    auto stopbits = stopbitsComboBox->currentText();
    if (stopbits == QString("1")) port.setStopBits(QSerialPort::OneStop);
    else if (stopbits == QString("1.5")) port.setStopBits(QSerialPort::OneAndHalfStop);
    else if (stopbits == QString("2")) port.setStopBits(QSerialPort::TwoStop);
    else {
        QMessageBox box;
        box.setText("wrong stopbits settings");
        box.exec();
        return;
    }

    // TODO: read info from config
    port.setBaudRate(115200);
    port.setDataBits(QSerialPort::Data8);
    port.setParity(QSerialPort::NoParity);
    port.setFlowControl(QSerialPort::NoFlowControl);
    if (port.open(QIODevice::ReadWrite)) {
        is_open = true;
        portOpenBtn->setText("close");
        statusbar->showMessage("open port success");
    } else
        is_open = false;

}

#include <cstdint>
#include <QLineSeries>

static uint64_t rest = 0;

static QLineSeries linedata;
static int cnt = 0;
static long long line_cnt = 0;

void main_window::read_data() {
    auto data = port.readAll();
//    for (int i = 0; i < data.size(); i++) {
//        linedata.append(line_cnt++, int(data[i]));
//    }
    cnt += data.size();
    QString new_text = QString(data.toHex(' ').toUpper()) + " ";
    hexTextEdit->moveCursor(QTextCursor::End);
    hexTextEdit->insertPlainText(new_text);
    if (cnt > 1e3) {
        QFile file;
        auto filename = tmpFilenameEdit->text();
        file.setFileName(filename);
        file.open(QIODevice::Append);
        auto val = hexTextEdit->toPlainText();
        hexTextEdit->clear();
        file.write(val.toUtf8());
        file.close();
        cnt = 0;
    }
}

#include <QChart>
#include <QChartView>
#include <QWidget>

void main_window::update_chart() {
    // TODO: memory leakage
    QChart *chart = new QChart();
    linedata.append(1, 10);
    linedata.append(10, 7);
    chart->addSeries(&linedata);
    chart->createDefaultAxes();
    chart->setTitle("WIP");
    QChartView *chartview = new QChartView(chart);
    chartview->show();

}