#include "APP/APP_UIWindow.h"

#include "APP/APP_GlassCard.h"
#include "APP/APP_KeyButton.h"
#include "APP/APP_Theme.h"
#include "APP/APP_UIWindow_Private.h"
#include "LOGIC/Lgc_Func_Button.h"
#include <QtCore/QSignalBlocker>
#include <QtGui/QPainter>
#include <QtWidgets/QComboBox>
#include <QtWidgets/QFormLayout>
#include <QtWidgets/QGridLayout>
#include <QtWidgets/QHeaderView>
#include <QtWidgets/QHBoxLayout>
#include <QtWidgets/QLabel>
#include <QtWidgets/QLineEdit>
#include <QtWidgets/QPushButton>
#include <QtWidgets/QSizePolicy>
#include <QtWidgets/QStackedWidget>
#include <QtWidgets/QTabWidget>
#include <QtWidgets/QTableWidget>
#include <QtWidgets/QTableWidgetItem>
#include <QtWidgets/QVBoxLayout>

namespace APP {

namespace
{

QLabel* App_Func_CreateLabel(
    QWidget* parent,
    const QString& Text,
    const QFont& Font,
    bool WordWrap = false)
{
    QLabel* p_Label = new QLabel(Text, parent);
    p_Label->setFont(Font);
    p_Label->setAttribute(Qt::WA_TranslucentBackground, true);
    p_Label->setWordWrap(WordWrap);
    return p_Label;
}

APP_GlassCard* App_Func_CreateCard(QWidget* parent, QVBoxLayout** pp_Layout)
{
    APP_GlassCard* p_Card = new APP_GlassCard(parent);
    QVBoxLayout* p_Layout = new QVBoxLayout(p_Card);
    p_Layout->setContentsMargins(20, 20, 20, 20);
    p_Layout->setSpacing(14);
    *pp_Layout = p_Layout;
    return p_Card;
}

void App_Func_SetGridStretch(QGridLayout* p_Grid, int ColumnCount, int RowCount)
{
    for (int Column = 0; Column < ColumnCount; ++Column)
    {
        p_Grid->setColumnStretch(Column, 1);
    }
    for (int Row = 0; Row < RowCount; ++Row)
    {
        p_Grid->setRowStretch(Row, 1);
    }
}

} // namespace

int App_Func_GetFeatureStackIndex(Lgc_FunctionFeature_Type Type)
{
    switch (Type)
    {
    case Lgc_FunctionFeature_Type::KeyCombination:
    case Lgc_FunctionFeature_Type::KeySequence:
        return 0;

    case Lgc_FunctionFeature_Type::Website:
        return 1;

    default:
        return 0;
    }
}

bool App_Func_IsKeyRecordFeatureType(Lgc_FunctionFeature_Type Type)
{
    return (Type == Lgc_FunctionFeature_Type::KeyCombination) ||
        (Type == Lgc_FunctionFeature_Type::KeySequence);
}

QString App_Func_GetWebsiteEditText(const QString& UrlText)
{
    const QString DisplayText = UrlText.trimmed();
    return DisplayText.isEmpty() ? QStringLiteral("https://") : DisplayText;
}

App_UIWindow::App_UIWindow(QWidget* parent)
    : QWidget(parent)
{
    App_Func_InitWindow();
    App_Func_InitUi();
    App_Func_InitConnect();
    App_Func_InitLogic();
    App_Func_RefreshUi();
}

App_UIWindow::~App_UIWindow()
{
    Lgc_Core_Close(&appLgcState);
}

void App_UIWindow::paintEvent(QPaintEvent* event)
{
    Q_UNUSED(event);
    QPainter Painter(this);
    Painter.setRenderHint(QPainter::Antialiasing, true);
    Painter.fillRect(rect(), palette().color(QPalette::Window));
}

void App_UIWindow::resizeEvent(QResizeEvent* event)
{
    QWidget::resizeEvent(event);
    App_Func_UpdateFeatureEditorHeight();
}

bool App_UIWindow::nativeEvent(const QByteArray& EventType, void* p_Message, long* p_Result)
{
    Q_UNUSED(EventType);
    App_Func_HandleSequenceRecordMessage(p_Message);
    Lgc_Core_HandleNativeMessage(&appLgcState, p_Message);
    return QWidget::nativeEvent(EventType, p_Message, p_Result);
}

void App_UIWindow::App_Func_InitWindow()
{
    setWindowTitle(QStringLiteral("数字键盘上位机"));
#if APP_ENABLE_DEBUG_WINDOW
    setMinimumSize(820, 960);
    resize(900, 1040);
#else
    setMinimumSize(760, 820);
    resize(820, 900);
#endif
    setAttribute(Qt::WA_StyledBackground, true);
}

void App_UIWindow::App_Func_InitUi()
{
    QVBoxLayout* p_RootLayout = new QVBoxLayout(this);
    p_RootLayout->setContentsMargins(26, 22, 26, 24);
    p_RootLayout->setSpacing(14);

    appPageTab = new QTabWidget(this);
    appPageTab->setDocumentMode(true);
    appPageTab->setMovable(false);

    appPageTab->addTab(App_Func_CreatePadCard(), QStringLiteral("按键映射"));
    appFeaturePageIndex = appPageTab->addTab(App_Func_CreateFunctionConfigCard(), QStringLiteral("功能表"));
#if APP_ENABLE_DEBUG_WINDOW
    appPageTab->addTab(App_Func_CreateDebugCard(), QStringLiteral("调试"));
#endif

    p_RootLayout->addWidget(appPageTab, 1);
}

void App_UIWindow::App_Func_InitConnect()
{
    connect(&appTimerPoll, &QTimer::timeout, this, &App_UIWindow::App_Func_OnPollTimer);
    connect(&appTimerAutoRefreshDevice, &QTimer::timeout, this, [this]()
    {
        if (appLgcState.IsConnected)
        {
            return;
        }

        const QString OldTextLog = appLgcState.TextLog;
        Lgc_Core_RefreshDevice(&appLgcState);
        if (!appLgcState.IsConnected)
        {
            appLgcState.TextLog = OldTextLog;
        }
        App_Func_RefreshAfterLogicChange();
    });

    connect(appFeatureAddButton, &QPushButton::clicked, this, &App_UIWindow::App_Func_AddFeature);
    connect(appFeatureDeleteButton, &QPushButton::clicked, this, &App_UIWindow::App_Func_DeleteFeature);

    connect(appFeatureTable, &QTableWidget::itemSelectionChanged, this, [this]()
    {
        const QModelIndexList IndexList = appFeatureTable->selectionModel()->selectedRows();
        if (IndexList.isEmpty())
        {
            App_Func_SelectFeature(0);
            return;
        }

        const int Row = IndexList.first().row();
        const QTableWidgetItem* p_Item = appFeatureTable->item(Row, 0);
        App_Func_SelectFeature(p_Item == nullptr ? 0 : p_Item->data(Qt::UserRole).toInt());
    });

    const auto ConnectSaveSignal = [this](auto Sender, auto Signal)
    {
        connect(Sender, Signal, this, [this]()
        {
            if (!appIsUpdatingFeatureUi)
            {
                App_Func_SaveFeatureFromUi();
            }
        });
    };

    ConnectSaveSignal(appFeatureNameEdit, &QLineEdit::textChanged);
    ConnectSaveSignal(appFeatureDescriptionEdit, &QLineEdit::textChanged);
    ConnectSaveSignal(appFeatureTypeCombo, qOverload<int>(&QComboBox::currentIndexChanged));
    ConnectSaveSignal(appFeatureSequenceEdit, &QLineEdit::textChanged);
    ConnectSaveSignal(appFeatureWebsiteEdit, &QLineEdit::textChanged);

    connect(appFeatureSequenceRecordStartButton, &QPushButton::clicked, this, &App_UIWindow::App_Func_StartSequenceRecording);
    connect(appFeatureSequenceRecordStopButton, &QPushButton::clicked, this, &App_UIWindow::App_Func_StopSequenceRecording);

#if APP_ENABLE_DEBUG_WINDOW
    connect(appDebugPanel->Debug_Func_GetRefreshButton(), &QPushButton::clicked, this, &App_UIWindow::App_Func_OnRefreshDeviceClicked);
    connect(appDebugPanel->Debug_Func_GetClearButton(), &QPushButton::clicked, this, &App_UIWindow::App_Func_OnClearLogClicked);
    connect(appDebugPanel->Debug_Func_GetApplyConfigButton(), &QPushButton::clicked, this, &App_UIWindow::App_Func_OnApplyDeviceConfigClicked);
    connect(appDebugPanel->Debug_Func_GetSyncTimeButton(), &QPushButton::clicked, this, &App_UIWindow::App_Func_OnSyncTimeClicked);
    connect(appDebugPanel->Debug_Func_GetModeSwitchButton(), &QPushButton::clicked, this, &App_UIWindow::App_Func_OnModeSwitchClicked);
#endif
}

void App_UIWindow::App_Func_InitLogic()
{
    Lgc_Core_Init(&appLgcState);
    Lgc_Core_SetWindowHandle(&appLgcState, reinterpret_cast<void*>(winId()));

    App_Func_RefreshFeatureTable();
#if APP_ENABLE_DEBUG_WINDOW
    App_Func_RefreshDeviceConfigFromState();
#endif
    Lgc_Core_Start(&appLgcState);
    appTimerPoll.setInterval(30);
    appTimerPoll.start();
    appTimerAutoRefreshDevice.setInterval(1500);
    appTimerAutoRefreshDevice.start();
    App_Func_RefreshAfterLogicChange();
}

QWidget* App_UIWindow::App_Func_CreatePadCard()
{
    QVBoxLayout* p_Layout = nullptr;
    APP_GlassCard* p_Card = App_Func_CreateCard(this, &p_Layout);
    p_Layout->addWidget(App_Func_CreateLabel(
        p_Card,
        QStringLiteral("按键映射"),
        APP_Theme::App_Func_GetMetricFont()));
    p_Layout->addWidget(App_Func_CreateLabel(
        p_Card,
        QStringLiteral("左键直接模拟真实小键盘按下/抬起；右键把当前按键绑定到某个功能。绑定后，键帽左上角会显示功能名，悬停会显示功能简介。"),
        APP_Theme::App_Func_GetBodyFont(),
        true));

    QGridLayout* p_Grid = new QGridLayout();
    p_Grid->setSpacing(14);

    for (const APP_KeyInfo& Key : appKeypadModel.App_Func_GetKeyList())
    {
        APP_KeyButton* p_Button = new APP_KeyButton(Key, p_Card);
        p_Button->setContextMenuPolicy(Qt::CustomContextMenu);
        connect(p_Button, &QPushButton::pressed, this, [this, Key]() { App_Func_HandleUiKeyPressed(Key.usage); });
        connect(p_Button, &QPushButton::released, this, [this, Key]() { App_Func_HandleUiKeyReleased(Key.usage); });
        connect(p_Button, &QWidget::customContextMenuRequested, this, [this, p_Button, Key](const QPoint&)
        {
            App_Func_ShowKeyMenu(
                Key.usage,
                p_Button->mapToGlobal(QPoint(p_Button->width() / 2, p_Button->height() / 2)));
        });

        appKeypadButtonMap.insert(Key.id, p_Button);
        p_Grid->addWidget(p_Button, Key.row, Key.column, Key.rowSpan, Key.columnSpan);
    }

    App_Func_SetGridStretch(p_Grid, 4, 5);
    p_Layout->addLayout(p_Grid, 1);
    return p_Card;
}

QWidget* App_UIWindow::App_Func_CreateFunctionConfigCard()
{
    QVBoxLayout* p_Layout = nullptr;
    APP_GlassCard* p_Card = App_Func_CreateCard(this, &p_Layout);
    const auto AddRow = [p_Card](QFormLayout* p_Form, const QString& LabelText, QWidget* p_Field)
    {
        p_Form->addRow(App_Func_CreateLabel(p_Card, LabelText, APP_Theme::App_Func_GetBodyFont()), p_Field);
    };

    p_Layout->addWidget(App_Func_CreateLabel(
        p_Card,
        QStringLiteral("功能表"),
        APP_Theme::App_Func_GetMetricFont()));
    p_Layout->addWidget(App_Func_CreateLabel(
        p_Card,
        QStringLiteral("功能表默认为空，请先添加功能，再把按钮绑定到某个功能。当前支持“快捷键”“快捷键序列”和“打开网址”三种功能类型。"),
        APP_Theme::App_Func_GetBodyFont(),
        true));

    QHBoxLayout* p_TopRow = new QHBoxLayout();
    p_TopRow->setContentsMargins(0, 0, 0, 0);
    p_TopRow->setSpacing(10);
    appFeatureAddButton = new QPushButton(QStringLiteral("添加功能"), p_Card);
    appFeatureDeleteButton = new QPushButton(QStringLiteral("删除功能"), p_Card);
    appFeatureDeleteButton->setEnabled(false);
    p_TopRow->addWidget(appFeatureAddButton);
    p_TopRow->addWidget(appFeatureDeleteButton);
    p_TopRow->addStretch(1);
    p_Layout->addLayout(p_TopRow);

    appFeatureTable = new QTableWidget(p_Card);
    appFeatureTable->setColumnCount(3);
    appFeatureTable->setHorizontalHeaderLabels({ QStringLiteral("功能名"), QStringLiteral("功能简介"), QStringLiteral("类型") });
    appFeatureTable->setSelectionBehavior(QAbstractItemView::SelectRows);
    appFeatureTable->setSelectionMode(QAbstractItemView::SingleSelection);
    appFeatureTable->setEditTriggers(QAbstractItemView::NoEditTriggers);
    appFeatureTable->setAlternatingRowColors(true);
    appFeatureTable->verticalHeader()->setVisible(false);
    appFeatureTable->horizontalHeader()->setStretchLastSection(false);
    appFeatureTable->horizontalHeader()->setSectionResizeMode(0, QHeaderView::ResizeToContents);
    appFeatureTable->horizontalHeader()->setSectionResizeMode(1, QHeaderView::Stretch);
    appFeatureTable->horizontalHeader()->setSectionResizeMode(2, QHeaderView::ResizeToContents);
    appFeatureTable->setMinimumHeight(220);
    p_Layout->addWidget(appFeatureTable);

    QFormLayout* p_Form = new QFormLayout();
    p_Form->setFieldGrowthPolicy(QFormLayout::AllNonFixedFieldsGrow);
    p_Form->setLabelAlignment(Qt::AlignLeft | Qt::AlignVCenter);
    p_Form->setHorizontalSpacing(10);
    p_Form->setVerticalSpacing(10);

    appFeatureNameEdit = new QLineEdit(p_Card);
    appFeatureNameEdit->setPlaceholderText(QStringLiteral("例如：功能1 / 打开4399 / 前缀补码"));
    AddRow(p_Form, QStringLiteral("功能名"), appFeatureNameEdit);

    appFeatureDescriptionEdit = new QLineEdit(p_Card);
    appFeatureDescriptionEdit->setPlaceholderText(QStringLiteral("例如：打开 4399 首页"));
    AddRow(p_Form, QStringLiteral("功能简介"), appFeatureDescriptionEdit);

    appFeatureTypeCombo = new QComboBox(p_Card);
    appFeatureTypeCombo->addItem(
        Lgc_FunctionButton_GetFeatureTypeText(Lgc_FunctionFeature_Type::KeyCombination),
        static_cast<int>(Lgc_FunctionFeature_Type::KeyCombination));
    appFeatureTypeCombo->addItem(
        Lgc_FunctionButton_GetFeatureTypeText(Lgc_FunctionFeature_Type::KeySequence),
        static_cast<int>(Lgc_FunctionFeature_Type::KeySequence));
    appFeatureTypeCombo->addItem(
        Lgc_FunctionButton_GetFeatureTypeText(Lgc_FunctionFeature_Type::Website),
        static_cast<int>(Lgc_FunctionFeature_Type::Website));
    AddRow(p_Form, QStringLiteral("功能类型"), appFeatureTypeCombo);

    appFeatureEditorStack = new QStackedWidget(p_Card);
    appFeatureEditorStack->setSizePolicy(QSizePolicy::Expanding, QSizePolicy::Fixed);

    QWidget* p_SequencePage = new QWidget(appFeatureEditorStack);
    QFormLayout* p_SequenceForm = new QFormLayout(p_SequencePage);
    p_SequenceForm->setContentsMargins(0, 0, 0, 0);
    p_SequenceForm->setHorizontalSpacing(10);
    p_SequenceForm->setVerticalSpacing(10);

    QWidget* p_SequenceEditor = new QWidget(p_SequencePage);
    QHBoxLayout* p_SequenceEditorLayout = new QHBoxLayout(p_SequenceEditor);
    p_SequenceEditorLayout->setContentsMargins(0, 0, 0, 0);
    p_SequenceEditorLayout->setSpacing(8);
    appFeatureSequenceEdit = new QLineEdit(p_SequenceEditor);
    appFeatureSequenceEdit->setPlaceholderText(QStringLiteral("例如：Ctrl+C"));
    appFeatureSequenceRecordStartButton = new QPushButton(QStringLiteral("开始录入"), p_SequenceEditor);
    appFeatureSequenceRecordStopButton = new QPushButton(QStringLiteral("退出录入"), p_SequenceEditor);
    appFeatureSequenceRecordStopButton->setEnabled(false);
    p_SequenceEditorLayout->addWidget(appFeatureSequenceEdit, 1);
    p_SequenceEditorLayout->addWidget(appFeatureSequenceRecordStartButton);
    p_SequenceEditorLayout->addWidget(appFeatureSequenceRecordStopButton);
    p_SequenceForm->addRow(QStringLiteral("快捷键"), p_SequenceEditor);

    QWidget* p_WebsitePage = new QWidget(appFeatureEditorStack);
    QVBoxLayout* p_WebsiteLayout = new QVBoxLayout(p_WebsitePage);
    p_WebsiteLayout->setContentsMargins(0, 0, 0, 0);
    p_WebsiteLayout->setSpacing(0);
    appFeatureWebsiteEdit = new QLineEdit(p_WebsitePage);
    appFeatureWebsiteEdit->setPlaceholderText(QStringLiteral("例如直接输入 4399.com 或 www.4399.com"));
    p_WebsiteLayout->addWidget(appFeatureWebsiteEdit);

    appFeatureEditorStack->addWidget(p_SequencePage);
    appFeatureEditorStack->addWidget(p_WebsitePage);
    AddRow(p_Form, QStringLiteral("功能参数"), appFeatureEditorStack);

    appFeatureBindingSummaryLabel = App_Func_CreateLabel(
        p_Card,
        QStringLiteral("当前还没有功能，请点击“添加功能”。"),
        APP_Theme::App_Func_GetBodyFont(),
        true);
    AddRow(p_Form, QStringLiteral("绑定情况"), appFeatureBindingSummaryLabel);

    appFunctionLabelStatus = App_Func_CreateLabel(
        p_Card,
        QStringLiteral("等待按键动作。"),
        APP_Theme::App_Func_GetBodyFont(),
        true);
    AddRow(p_Form, QStringLiteral("最近一次动作"), appFunctionLabelStatus);

    p_Layout->addLayout(p_Form);
    p_Layout->addStretch(1);
    return p_Card;
}

#if APP_ENABLE_DEBUG_WINDOW
QWidget* App_UIWindow::App_Func_CreateDebugCard()
{
    appDebugPanel = new DEBUG::Debug_Panel(this);
    appDebugPanel->Debug_Func_SetConnectionText(QStringLiteral("未连接，等待枚举设备。"), false);
    appDebugPanel->Debug_Func_SetLogText(QStringLiteral("等待收到输入包。"));
    return appDebugPanel;
}
#endif

} // namespace APP