#include "tableoverlaywidget.h"
#include <QPropertyAnimation>
#include <QGraphicsOpacityEffect>
#include <QScrollBar>
#include <QDebug>

TableOverlayWidget::TableOverlayWidget(QWidget *parent)
    : QWidget(parent), m_isVisible(false)
{
  setupUI();
  hide(); // 初始隐藏
}

void TableOverlayWidget::setupUI()
{
  // 设置浮层属性
  setAttribute(Qt::WA_StyledBackground);
  setStyleSheet("TableOverlayWidget { background: transparent; }");

  // 主布局
  auto *mainLayout = new QHBoxLayout(this);
  mainLayout->setContentsMargins(0, 0, 0, 0);
  mainLayout->setSpacing(0);

  // 左侧标签栏滚动区域
  m_tabScrollArea = new QScrollArea(this);
  m_tabScrollArea->setFixedWidth(130);
  m_tabScrollArea->setWidgetResizable(true);
  m_tabScrollArea->setHorizontalScrollBarPolicy(Qt::ScrollBarAlwaysOff);
  m_tabScrollArea->setVerticalScrollBarPolicy(Qt::ScrollBarAsNeeded);
  m_tabScrollArea->setStyleSheet(
      "QScrollArea { "
      "  background: #34495e; "
      "  border-right: 1px solid #2c3e50; "
      "  border: none; "
      "}"
      "QScrollBar:vertical { "
      "  background: #2c3e50; "
      "  width: 10px; "
      "  margin: 0px; "
      "}"
      "QScrollBar::handle:vertical { "
      "  background: #546e7a; "
      "  min-height: 20px; "
      "  border-radius: 5px; "
      "}"
      "QScrollBar::handle:vertical:hover { "
      "  background: #607d8b; "
      "}"
      "QScrollBar::add-line:vertical, QScrollBar::sub-line:vertical { "
      "  height: 0px; "
      "}"
      "QScrollBar::add-page:vertical, QScrollBar::sub-page:vertical { "
      "  background: none; "
      "}");

  // 标签栏容器
  m_tabBar = new QWidget();
  m_tabBar->setStyleSheet(
      "QWidget { "
      "  background: #34495e; "
      "}");

  m_tabLayout = new QVBoxLayout(m_tabBar);
  m_tabLayout->setContentsMargins(8, 12, 8, 12);
  m_tabLayout->setSpacing(6);
  m_tabLayout->setAlignment(Qt::AlignTop);

  m_tabScrollArea->setWidget(m_tabBar);
  mainLayout->addWidget(m_tabScrollArea);

  // 内容容器（右侧）
  m_container = new QWidget(this);
  m_container->setStyleSheet(
      "QWidget { "
      "  background: #f5f5f5; "
      "  border: none; "
      "  border-top-right-radius: 10px; "
      "  border-bottom-right-radius: 10px; "
      "}");

  auto *containerLayout = new QVBoxLayout(m_container);
  containerLayout->setContentsMargins(0, 0, 0, 0);
  containerLayout->setSpacing(0);

  // 标题栏
  auto *headerWidget = new QWidget(this);
  headerWidget->setStyleSheet(
      "QWidget { "
      "  background: qlineargradient(x1:0, y1:0, x2:1, y2:0, stop:0 #3498db, stop:1 #2980b9); "
      "  border-top-left-radius: 0px; "
      "  border-top-right-radius: 10px; "
      "}");
  auto *headerLayout = new QHBoxLayout(headerWidget);
  headerLayout->setContentsMargins(20, 10, 10, 10);
  headerLayout->setSpacing(8);

  m_titleLabel = new QLabel("表格", this);
  m_titleLabel->setStyleSheet(
      "QLabel { "
      "  color: white; "
      "  font-size: 14pt; "
      "  font-weight: bold; "
      "  background: transparent; "
      "}");
  headerLayout->addWidget(m_titleLabel);
  headerLayout->addStretch();

  // 关闭按钮 - 正方形圆角，图标居中
  m_closeBtn = new QPushButton("×", this);
  m_closeBtn->setFixedSize(32, 32);
  m_closeBtn->setCursor(Qt::PointingHandCursor);
  m_closeBtn->setStyleSheet(
      "QPushButton { "
      "  background: rgba(255,255,255,0.2); "
      "  color: white; "
      "  border: none; "
      "  border-radius: 6px; "
      "  font-size: 20px; "
      "  font-weight: normal; "
      "  text-align: center; "
      "  padding: 0px; "
      "  margin: 0px; "
      "}"
      "QPushButton:hover { background: rgba(255,255,255,0.35); }"
      "QPushButton:pressed { background: rgba(255,255,255,0.5); }");
  connect(m_closeBtn, &QPushButton::clicked, this, &TableOverlayWidget::onCloseButtonClicked);
  headerLayout->addWidget(m_closeBtn);

  containerLayout->addWidget(headerWidget);

  // 内容堆栈
  m_contentStack = new QStackedWidget(this);
  m_contentStack->setStyleSheet(
      "QStackedWidget { "
      "  background: white; "
      "  border: none; "
      "}");
  containerLayout->addWidget(m_contentStack, 1);

  mainLayout->addWidget(m_container, 1);

  // 设置默认大小（占父容器的70%宽度，90%高度）
  setMinimumWidth(600);
  setMaximumWidth(1200);
}

void TableOverlayWidget::addTable(const QString &tableId, const QString &tableName, QWidget *tableWidget)
{
  if (m_tables.contains(tableId))
  {
    qDebug() << "Table already exists:" << tableId;
    return;
  }

  TableTab tab;
  tab.id = tableId;
  tab.name = tableName;
  tab.widget = tableWidget;

  // 创建标签按钮
  tab.tabButton = new QPushButton(tableName, m_tabBar);
  tab.tabButton->setFixedHeight(48);
  tab.tabButton->setSizePolicy(QSizePolicy::Expanding, QSizePolicy::Fixed);
  tab.tabButton->setProperty("tableId", tableId);
  tab.tabButton->setCursor(Qt::PointingHandCursor);
  tab.tabButton->setStyleSheet(
      "QPushButton {"
      "  background: #455a64;"
      "  color: #ecf0f1;"
      "  border: none;"
      "  border-radius: 6px;"
      "  padding: 6px 6px;"
      "  font-size: 9.5pt;"
      "  font-weight: 500;"
      "  text-align: center;"
      "  border-left: 3px solid transparent;"
      "}"
      "QPushButton:hover {"
      "  background: #546e7a;"
      "  color: white;"
      "}"
      "QPushButton:checked {"
      "  background: #2980b9;"
      "  color: white;"
      "  font-weight: bold;"
      "  border-left: 3px solid #1976d2;"
      "}"
      "QPushButton:pressed {"
      "  background: #21618c;"
      "}");
  tab.tabButton->setCheckable(true);
  connect(tab.tabButton, &QPushButton::clicked, this, &TableOverlayWidget::onTabButtonClicked);

  // 添加到布局
  m_tabLayout->addWidget(tab.tabButton);

  // 添加到内容堆栈
  m_contentStack->addWidget(tableWidget);

  m_tables[tableId] = tab;

  // 如果是第一个表格，自动显示
  if (m_tables.size() == 1)
  {
    showTable(tableId);
  }
}

void TableOverlayWidget::showTable(const QString &tableId)
{
  if (!m_tables.contains(tableId))
  {
    qDebug() << "Table not found:" << tableId;
    return;
  }

  // 取消之前的选中状态
  if (!m_currentTableId.isEmpty() && m_tables.contains(m_currentTableId))
  {
    m_tables[m_currentTableId].tabButton->setChecked(false);
  }

  // 切换到新表格
  m_currentTableId = tableId;
  const TableTab &tab = m_tables[tableId];

  tab.tabButton->setChecked(true);
  m_contentStack->setCurrentWidget(tab.widget);
  m_titleLabel->setText(tab.name);

  emit tableChanged(tableId);
}

void TableOverlayWidget::removeTable(const QString &tableId)
{
  if (!m_tables.contains(tableId))
    return;

  TableTab tab = m_tables.take(tableId);

  // 移除按钮
  m_tabLayout->removeWidget(tab.tabButton);
  tab.tabButton->deleteLater();

  // 移除内容
  m_contentStack->removeWidget(tab.widget);

  // 如果删除的是当前表格，切换到第一个
  if (m_currentTableId == tableId && !m_tables.isEmpty())
  {
    showTable(m_tables.firstKey());
  }
  else if (m_tables.isEmpty())
  {
    m_currentTableId.clear();
    hideOverlay();
  }
}

void TableOverlayWidget::clearTables()
{
  // 清除所有表格
  for (const QString &tableId : m_tables.keys())
  {
    removeTable(tableId);
  }
  m_currentTableId.clear();
}

void TableOverlayWidget::showOverlay()
{
  if (m_isVisible || m_tables.isEmpty())
    return;

  // 如果当前没有选中的表格，显示第一个
  if (m_currentTableId.isEmpty() && !m_tables.isEmpty())
  {
    showTable(m_tables.firstKey());
  }

  m_isVisible = true;
  m_container->show();
  m_tabBar->show();
  show();
  animateShow();
}

void TableOverlayWidget::hideOverlay()
{
  if (!m_isVisible)
    return;

  m_isVisible = false;
  animateHide();
}

void TableOverlayWidget::toggleOverlay()
{
  if (m_isVisible)
    hideOverlay();
  else
    showOverlay();
}

void TableOverlayWidget::onTabButtonClicked()
{
  QPushButton *btn = qobject_cast<QPushButton *>(sender());
  if (!btn)
    return;

  QString tableId = btn->property("tableId").toString();
  if (!tableId.isEmpty())
  {
    showTable(tableId);
  }
}

void TableOverlayWidget::onCloseButtonClicked()
{
  hideOverlay();
  emit closed();
}

void TableOverlayWidget::updateTabButtons()
{
  for (const TableTab &tab : m_tables)
  {
    tab.tabButton->setChecked(tab.id == m_currentTableId);
  }
}

void TableOverlayWidget::animateShow()
{
  // 淡入动画
  QGraphicsOpacityEffect *effect = new QGraphicsOpacityEffect(this);
  setGraphicsEffect(effect);

  QPropertyAnimation *animation = new QPropertyAnimation(effect, "opacity");
  animation->setDuration(200);
  animation->setStartValue(0.0);
  animation->setEndValue(1.0);
  animation->setEasingCurve(QEasingCurve::OutCubic);
  animation->start(QPropertyAnimation::DeleteWhenStopped);
}

void TableOverlayWidget::animateHide()
{
  // 淡出动画
  QGraphicsOpacityEffect *effect = new QGraphicsOpacityEffect(this);
  setGraphicsEffect(effect);

  QPropertyAnimation *animation = new QPropertyAnimation(effect, "opacity");
  animation->setDuration(150);
  animation->setStartValue(1.0);
  animation->setEndValue(0.0);
  animation->setEasingCurve(QEasingCurve::InCubic);

  connect(animation, &QPropertyAnimation::finished, this, &TableOverlayWidget::hide);
  animation->start(QPropertyAnimation::DeleteWhenStopped);
}