#include "FlowGraphNodeWidget.h"

#include "SchemePlanManager.h"
#include "ProjectManager.h"

#include <QBoxLayout>
#include <QLabel>
#include <QCheckBox>
#include <QComboBox>
#include <QSpinBox>

#include <QDebug>

FlowGraphNodeWidget::FlowGraphNodeWidget(NodeWidgetType type, QWidget *parent) : QWidget(parent), m_type(type)
{
    setFixedSize(QSize(130, 30));
    m_layout = new QVBoxLayout(this);
    m_layout->setMargin(0);
}

FlowGraphNodeWidget::NodeWidgetType FlowGraphNodeWidget::type() const
{
    return m_type;
}

FlowGraphPlainNodeWidget::FlowGraphPlainNodeWidget(QWidget *parent) : FlowGraphNodeWidget(Plain, parent)
{
    m_label = new QLabel(this);
    m_label->setText("test");
    m_label->setStyleSheet("{font: bold}");
    m_label->setAlignment(Qt::AlignCenter);

    m_layout->setMargin(0);
    m_layout->addWidget(m_label);
}

void FlowGraphPlainNodeWidget::setText(const QString text)
{
    m_label->setText(text);
}

FlowGraphCheckNodeWidget::FlowGraphCheckNodeWidget(QWidget *parent) : FlowGraphNodeWidget(CheckBox, parent)
{
    m_checkBox = new QCheckBox("执行", this);

    m_layout->setMargin(0);
    m_layout->setAlignment(Qt::AlignCenter);
    m_layout->addWidget(m_checkBox);
}

FlowGraphComboNodeWidget::FlowGraphComboNodeWidget(QWidget *parent) : FlowGraphNodeWidget(ComboBox, parent)
{
    m_combo = new QComboBox(this);

    setStyleSheet("QComboBox {"
                  "border: 1px solid gray;"
                  "border-radius: 3px;"
                  "padding: 1px 18px 1px 3px;"
                  "min-width: 6em;"
                  "}"
                  "QComboBox:editable {"
                  "background: white;"
                  "}"

                  "QComboBox:!editable, QComboBox::drop-down:editable {"
                  "background: qlineargradient(x1: 0, y1: 0, x2: 0, y2: 1,"
                  "stop: 0 #E1E1E1, stop: 0.4 #DDDDDD,"
                  "stop: 0.5 #D8D8D8, stop: 1.0 #D3D3D3);"
                  "}");

    m_layout->addWidget(m_combo);
}

QList<QString> FlowGraphComboNodeWidget::items() const
{
    return m_items;
}

void FlowGraphComboNodeWidget::setItems(QList<QString> items)
{
    m_items = items;
    m_combo->clear();
    m_combo->addItems(items);
}

FlowGraphSpinNodeWidget::FlowGraphSpinNodeWidget(QWidget *parent) : FlowGraphNodeWidget(SpinBox, parent)
{
    m_spinBox = new QSpinBox(this);
    m_spinBox->setMinimum(1);
    m_spinBox->setMaximum(10);
    m_spinBox->setValue(3);

    m_layout->addWidget(m_spinBox);
}

FlowGraphCommonNodeWidget::FlowGraphCommonNodeWidget(QWidget *parent) : QWidget(parent)
{
    initWidget();
    connectSignalsAndSlots();
}

SchemePlanManager::SchemeProcessInfo FlowGraphCommonNodeWidget::process() const
{
    return m_process;
}

void FlowGraphCommonNodeWidget::setProcess(SchemePlanManager::SchemeProcessInfo &i)
{
    m_process = i;
    loadInfo();
}

void FlowGraphCommonNodeWidget::setProcessId(int id)
{
    m_process.id = id;
}

bool FlowGraphCommonNodeWidget::isTitleHidden() const
{
    QList<SchemePlanManager::Algorithm> algs        = SchemePlanManager::processOptionalAlgorithms(m_process);
    QList<SchemePlanManager::SchemeDataSource> dsrc = SchemePlanManager::processOptionalDataSource(m_process);
    bool opt                                        = SchemePlanManager::processIsOptional(m_process);

    return (algs.count() > 0 || dsrc.count() > 0 || opt);
}

void FlowGraphCommonNodeWidget::setAllowEdit(bool allow)
{
    m_allowEdit = allow;
    m_algCombo->setEnabled(allow);
    m_dataCombo->setEnabled(allow);
    m_spinBox->setEnabled(allow);
    m_checkBox->setEnabled(allow);
}

void FlowGraphCommonNodeWidget::initWidget()
{
    setFixedWidth(300);

    m_label     = new QLabel();
    m_algCombo  = new QComboBox();
    m_dataCombo = new QComboBox();
    m_spinBox   = new QSpinBox();
    m_spinBox->setPrefix("效能分级:");
    m_spinBox->setMaximum(100);
    m_spinBox->setMinimum(3);
    m_checkBox = new QCheckBox("执行");

    m_layout = new QVBoxLayout(this);
    m_layout->setMargin(0);
    m_layout->setAlignment(Qt::AlignCenter);
    m_layout->addWidget(m_label);
    m_layout->addWidget(m_algCombo);
    m_layout->addWidget(m_dataCombo);
    m_layout->addWidget(m_spinBox);
    m_layout->addWidget(m_checkBox);
}

void FlowGraphCommonNodeWidget::connectSignalsAndSlots()
{
    connect(m_algCombo, SIGNAL(currentIndexChanged(int)), this, SLOT(slotAlgComboChanged(int)));
    connect(m_dataCombo, SIGNAL(currentIndexChanged(int)), this, SLOT(slotDataComboChanged(int)));
    connect(m_spinBox, SIGNAL(valueChanged(int)), this, SLOT(slotSpinBoxChanged(int)));
    connect(m_spinBox, SIGNAL(valueChanged(int)), this, SLOT(slotSpinBoxChanged(int)));
    connect(m_checkBox, &QCheckBox::stateChanged, this, &FlowGraphCommonNodeWidget::slotCheckBoxChanged);
}

void FlowGraphCommonNodeWidget::loadInfo()
{
    m_isLoaded = false;

    QList<SchemePlanManager::Algorithm> algs        = optionalAlgs();
    QList<SchemePlanManager::SchemeDataSource> dsrc = optionaldSource();
    bool opt                                        = isOptional();

    /// 标题
    /// 在其他子控件都不显示时, 将标题居中显示
    m_label->setHidden(algs.count() > 0 || dsrc.count() > 0 || opt);
    m_label->setText(title());

    /// 算法选择组件
    m_algCombo->setHidden(algs.count() < 1);
    m_algCombo->clear();
    for (SchemePlanManager::Algorithm alg : algs) {
        m_algCombo->addItem(SchemePlanManager::nameOfAlgorithm(alg));
    }
    int algIndex = 0;
    if (algs.count() > 0 && m_process.algorithm != SchemePlanManager::NoAlg) {
        algIndex = algs.indexOf(m_process.algorithm);
    }
    m_algCombo->setCurrentIndex(algIndex);

    /// 数据来源选择组件
    m_dataCombo->setHidden(dsrc.count() < 1);
    m_dataCombo->clear();
    for (SchemePlanManager::SchemeDataSource scr : dsrc) {
        m_dataCombo->addItem(SchemePlanManager::stringFromDataSource(scr));
    }
    int dataIndex = 0;
    if (dsrc.count() > 0 && m_process.dSource != SchemePlanManager::NoData) {
        dataIndex = dsrc.indexOf(m_process.dSource);
    }

    m_dataCombo->setCurrentIndex(dataIndex);

    /// 选择执行组件
    m_checkBox->setVisible(opt);
    m_checkBox->setChecked(m_process.isChecked);

    /// 效能分级组件

    m_spinBox->setHidden(m_process.indexType != ProjectManager::EfficiencyIndex
                         || m_process.type != SchemePlanManager::RunEvaluate);
    m_spinBox->setValue(m_process.efficiencyGrades);

    m_isLoaded = true;
}

QString FlowGraphCommonNodeWidget::title() const
{
    return SchemePlanManager::processName(m_process);
}

QList<SchemePlanManager::Algorithm> FlowGraphCommonNodeWidget::optionalAlgs() const
{
    return SchemePlanManager::processOptionalAlgorithms(m_process);
}

QList<SchemePlanManager::SchemeDataSource> FlowGraphCommonNodeWidget::optionaldSource() const
{
    return SchemePlanManager::processOptionalDataSource(m_process);
}

bool FlowGraphCommonNodeWidget::isOptional() const
{
    return SchemePlanManager::processIsOptional(m_process);
}

void FlowGraphCommonNodeWidget::slotAlgComboChanged(int index)
{
    QList<SchemePlanManager::Algorithm> list = optionalAlgs();

    if (list.size() <= index) {
        return;
    }

    if (m_process.algorithm == list.at(index)) {
        return;
    }

    if (m_isLoaded) {
        m_process.algorithm = list.at(index);
        qDebug() << __FUNCTION__ << __LINE__ << m_process.algorithm << endl;
        emit sigProcessEdited(m_process);
    }
}

void FlowGraphCommonNodeWidget::slotDataComboChanged(int index)
{
    QList<SchemePlanManager::SchemeDataSource> list = optionaldSource();

    if (list.size() <= index) {
        return;
    }

    if (m_process.dSource == list.at(index)) {
        return;
    }

    if (m_isLoaded) {
        m_process.dSource = list.at(index);
        emit sigProcessEdited(m_process);
    }
}

void FlowGraphCommonNodeWidget::slotSpinBoxChanged(int value)
{
    if (m_process.efficiencyGrades == value) {
        return;
    }

    if (m_isLoaded) {
        m_process.efficiencyGrades = value;
        emit sigProcessEdited(m_process);
    }
}

void FlowGraphCommonNodeWidget::slotCheckBoxChanged()
{
    if (m_process.isChecked == m_checkBox->isChecked()) {
        return;
    }

    if (m_isLoaded) {
        m_process.isChecked = m_checkBox->isChecked();
        emit sigProcessEdited(m_process);
    }
}