#include "DataTableWidget.h"

#include "DataTableItemDelegate.h"

#include "ProjectManager.h"
#include <dbService/CNodeDataService.h>
#include <dbService/ClassSet.h>

#include <Widgets/Button.h>
#include <QBoxLayout>

#include <QTabWidget>
#include <QLabel>
#include <QTableView>
#include <QTableWidget>
#include <QAbstractItemModel>
#include <QStandardItemModel>
#include <QStandardItem>
#include <QHeaderView>

#include <QDebug>

DataTableWidget::DataTableWidget(SchemePlanManager::SchemeProcessInfo process, QWidget *parent)
    : QWidget(parent), m_process(process)
{
    m_mind1 = new CMind(this);
    m_mind2 = new CMind(this);
    initWidget();
    initLayout();
    connectSignalsAndSlots();

    m_comboDelegate = new DataTableComboDelegate(this);
}

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

void DataTableWidget::initWidget()
{
    m_dataTab = new QTabWidget(this);
    m_dataTab->setTabPosition(QTabWidget::South);
    m_pageLab  = new QLabel(this);
    m_previous = new PushButton("上一级指标", this);
    m_next     = new PushButton("下一级指标", this);
}

void DataTableWidget::initLayout()
{
    m_layout = new QVBoxLayout(this);
    m_layout->addWidget(m_dataTab);
    m_pageLayout = new QHBoxLayout();
    m_layout->addLayout(m_pageLayout);

    m_pageLayout->setSpacing(10);
    m_pageLayout->addStretch();
    m_pageLayout->addWidget(m_previous);
    m_pageLayout->addWidget(m_pageLab);
    m_pageLayout->addWidget(m_next);
    m_pageLayout->addStretch();
}

void DataTableWidget::connectSignalsAndSlots()
{
    connect(m_previous, &PushButton::clicked, this, &DataTableWidget::slotPrevious);
    connect(m_next, &PushButton::clicked, this, &DataTableWidget::slotNext);
    connect(m_dataTab, &QTabWidget::currentChanged, this, &DataTableWidget::slotTabCurrentChanged);
}

void DataTableWidget::setupTabWidget()
{
    /// 创建 tableView 并添加进 tabWidget
    /// 这个过程中会触发 tabWidget 的 currentChanged,
    /// 所以使用 m_isSettingTable 标记此过程, 以采取必要措施来规避一些异常操作
    m_isSettingTable = true;
    m_dataTab->clear();
    for (CNodeData n : m_mind1->nodesInLevel(m_currentPage)) {
        QTableView *t = new QTableView(m_dataTab);
        t->setAlternatingRowColors(m_mind2->nodeList().count() > 0);
        t->horizontalHeader()->setSectionResizeMode(QHeaderView::Stretch);
        t->horizontalHeader()->setStyleSheet("QHeaderView::section{background:rgb(244,244,244);color: black;}");
        t->verticalHeader()->setStyleSheet("QHeaderView::section{background:rgb(244,244,244);color: black;}");
        t->verticalHeader()->setDefaultAlignment(Qt::AlignCenter);
        t->setSelectionMode(QAbstractItemView::SingleSelection);

        m_dataTab->addTab(t, n.name);

        QStandardItemModel *model = new QStandardItemModel(t);
        t->setModel(model);
    }
    m_isSettingTable = false;
}

int DataTableWidget::currentPage() const
{
    return m_currentPage;
}

void DataTableWidget::setCurrentPage(int p)
{
    if (p < 1 || p >= m_mind1->levels()) {
        return;
    }
    m_currentPage = p;
    m_previous->setEnabled(p > 1);
    m_next->setEnabled(p < m_mind1->levels() - 1);
    setupTabWidget();

    m_pageLab->setText(QString("共 %1 页, 当前第 %2 页").arg(m_mind1->levels() - 1).arg(p));
    updateCurrentTable();
}

void DataTableWidget::updateCurrentTable()
{
    int c             = m_dataTab->currentIndex();
    QTableView *table = (QTableView *)m_dataTab->widget(c);

    if (table == nullptr || table->model() == nullptr || m_isSettingTable) {
        return;
    }

    m_hNodes.clear();
    m_vNodes.clear();
    m_values.clear();

    QStandardItemModel *model = (QStandardItemModel *)table->model();

    /// 设置顶部水平方向标题
    int hIndex         = -1;
    int dimensionIndex = -1;  // 量纲所在列
    int typeIndex      = -1;  // 指标类型所在列

    // 指标
    CNodeData n            = m_mind1->nodesInLevel(m_currentPage)[c];
    QList<CNodeData> hList = m_mind1->subNodes(n);
    // 以下情况需要显示指标
    // 导入权重分析数据
    // 导入需求分析评估的评估数据
    if (m_process.type == SchemePlanManager::ImportWeightData || m_process.indexType == ProjectManager::TechIndex) {
        for (CNodeData node : hList) {
            QStandardItem *item = new QStandardItem(node.name);
            item->setToolTip(node.remark);
            model->setHorizontalHeaderItem(++hIndex, item);
            m_hNodes.append(node.name);
        }
    }
    // 导入方案优选评估或效能评估的评估数据时, 需要显示量纲
    if (m_process.type == SchemePlanManager::ImportEvalData
        && (m_process.indexType == ProjectManager::OptimalIndex
            || m_process.indexType == ProjectManager::EfficiencyIndex)) {
        QStandardItem *item = new QStandardItem("指标量纲");
        model->setHorizontalHeaderItem(++hIndex, item);
        dimensionIndex = hIndex;
    }
    // 导入方案优选评估的评估数据时, 需要显示指标类型
    if (m_process.type == SchemePlanManager::ImportEvalData && m_process.indexType == ProjectManager::OptimalIndex) {
        QStandardItem *item = new QStandardItem("指标类型");
        model->setHorizontalHeaderItem(++hIndex, item);
        typeIndex = hIndex;
    }

    /// 设置左侧垂直方向标题
    QList<CNodeData> vList;
    // 导入权重分析的专家数据时, 显示指标
    if (m_process.type == SchemePlanManager::ImportWeightData && m_process.dSource == SchemePlanManager::FromExpert) {
        vList = hList;
    }
    // 导入评估数据时, 显示最后一级指标
    if (m_process.type == SchemePlanManager::ImportEvalData) {
        if (m_process.indexType == ProjectManager::TechIndex) {
            vList = m_mind2->leaves();
        } else {
            vList = m_mind1->leaves();
        }
    }
    for (int i = 0; i < vList.count(); i++) {
        CNodeData node      = vList[i];
        QStandardItem *item = new QStandardItem(QString("  %1  ").arg(node.name));
        item->setToolTip(node.remark);
        model->setVerticalHeaderItem(i, item);
        table->setRowHeight(i, 35);
        m_vNodes.append(node.name);
    }

    /// 填充量纲和指标类型
    for (int i = 0; i < vList.count(); i++) {
        CNodeData vNode  = vList[i];
        QStandardItem *d = new QStandardItem();
        d->setData(Qt::AlignCenter, Qt::TextAlignmentRole);  // 单元格文字居中
        if (dimensionIndex >= 0) {
            d->setText(vNode.dimension);
            model->setItem(i, dimensionIndex, d);
        }

        if (typeIndex >= 0) {
            model->setItem(i, typeIndex, d);
            table->setItemDelegateForColumn(typeIndex, m_comboDelegate);
        }
        table->setRowHeight(i, 35);
    }

    /// 填充单元格
    if (m_process.type == SchemePlanManager::ImportWeightData) {
        if (m_process.dSource == SchemePlanManager::FromExpert) {
            for (int i = 0; i < vList.count(); i++) {
                CNodeData vNode = vList[i];
                for (int j = 0; j < hList.count(); j++) {
                    CNodeData hNode = hList[j];

                    QStandardItem *item = new QStandardItem();
                    item->setData(Qt::AlignCenter, Qt::TextAlignmentRole);  // 单元格文字居中
                    item->setBackground(QBrush(QColor("white")));

                    for (NodeMatrixInfo info : m_data) {
                        if (info.abscissa.toInt() == hNode.id && info.ordinate.toInt() == vNode.id) {
                            item->setText(info.nodeValue);
                            model->setItem(i, j, item);

                            if (info.nodeValue.contains("/")) {
                                qreal v = info.nodeValue.mid(2, 1).toDouble();
                                m_values.append(1.0 / v);
                            } else {
                                m_values.append(info.nodeValue.toDouble());
                            }

                            break;
                        }
                    }
                }

                table->setRowHeight(i, 35);
            }
        } else if (m_process.dSource == SchemePlanManager::FromMeasurement) {
            int row = model->rowCount();
            for (int j = 0; j < hList.count(); j++) {
                CNodeData hNode = hList[j];

                QStandardItem *item = new QStandardItem();
                item->setData(Qt::AlignCenter, Qt::TextAlignmentRole);  // 单元格文字居中
                item->setBackground(QBrush(QColor("white")));

                for (NodeMatrixInfo info : m_data) {
                    if (info.abscissa.toInt() == hNode.id) {
                        item->setText(info.nodeValue);
                        model->setItem(row, j, item);
                        break;
                    }
                }
            }
        }
    } else if (m_process.type == SchemePlanManager::ImportEvalData) {
        if (m_process.indexType == ProjectManager::TechIndex) {
            for (int i = 0; i < vList.count(); i++) {
                CNodeData vNode = vList[i];
                for (int j = 0; j < hList.count(); j++) {
                    CNodeData hNode = hList[j];

                    QStandardItem *item = new QStandardItem();
                    item->setData(Qt::AlignCenter, Qt::TextAlignmentRole);  // 单元格文字居中
                    item->setBackground(QBrush(QColor("white")));

                    for (NodeMatrixInfo info : m_data) {
                        if (info.abscissa.toInt() == hNode.id && info.ordinate.toInt() == vNode.id) {
                            item->setText(info.nodeValue);
                            model->setItem(i, j, item);
                            break;
                        }
                    }
                }

                table->setRowHeight(i, 35);
            }
        }
    }
}

QStringList DataTableWidget::hNodes() const
{
    return m_hNodes;
}

QStringList DataTableWidget::vNodes() const
{
    return m_vNodes;
}

QVector<qreal> DataTableWidget::values() const
{
    return m_values;
}

CMind *DataTableWidget::mind1() const
{
    return m_mind1;
}

CMind *DataTableWidget::mind2() const
{
    return m_mind2;
}

void DataTableWidget::setData(QList<NodeMatrixInfo> data)
{
    m_data = data;
}

void DataTableWidget::slotPrevious()
{
    setCurrentPage(m_currentPage - 1);
}

void DataTableWidget::slotNext()
{
    setCurrentPage(m_currentPage + 1);
}

void DataTableWidget::slotTabCurrentChanged(int c)
{
    Q_UNUSED(c)
    updateCurrentTable();
}