#pragma once
#include <QWidget>
#include <QPlainTextEdit>
#include <QVBoxLayout>
#include <QHBoxLayout>
#include <QLineEdit>
#include <QPushButton>
#include <QCheckBox>
#include <QLabel>
#include <QSet>
#include <QRegularExpression>
#include <QTextDocument>
#include <QListWidget>
#include <QSplitter>
#include <QTimer>

// RawView shows the raw UART output with timestamps, search (with next/
// previous navigation and wrap-around), tag suppression, unlimited history,
// H+V scrolling and a copy-to-clipboard button.
// A "Matches" panel (Ctrl+Shift+F) lists every line containing the search
// text; entries can be multi-selected and copied (with timestamps by default)
// or double-clicked to jump to the line in the log.
// Auto-scroll is ON by default.
class RawView : public QWidget
{
    Q_OBJECT

public:
    explicit RawView(QWidget *parent = nullptr);

public slots:
    void appendLine(const QString &line, const QSet<QString> &suppressedTags = {});
    void clear();

private slots:
    void onSearch(const QString &text);
    void onScrollValueChanged(int value);
    void onAutoScrollToggled(bool enabled);
    void copyToClipboard();
    void findNext();
    void findPrevious();
    void toggleMatchPanel(bool show);
    void refreshMatches();
    void updateMatchLabel();
    void jumpToMatch(QListWidgetItem *item);
    void copySelectedMatches();

private:
    void setupUi();
    void applyColorScheme();
    // Searches for `text` starting at the current cursor, honouring `flags`
    // (e.g. QTextDocument::FindBackward). If nothing is found and
    // `wrapAllowed` is true, retries once from the start/end of the
    // document so search wraps around instead of dead-ending.
    bool searchAndSelect(const QString &text, QTextDocument::FindFlags flags, bool wrapAllowed);
    // Regex helpers: makeRegex() honours the "Aa" (match case) checkbox;
    // regexError() returns an empty string if the pattern is usable, else
    // a short reason (invalid syntax, or it matches empty text which would
    // make "find next" stall and match every line in the list).
    QRegularExpression makeRegex(const QString &text) const;
    static QString regexError(const QRegularExpression &re);

    QPlainTextEdit *m_textEdit     = nullptr;
    QLineEdit      *m_searchEdit   = nullptr;
    QPushButton    *m_findPrevBtn  = nullptr;
    QPushButton    *m_findNextBtn  = nullptr;
    QPushButton    *m_clearBtn     = nullptr;
    QPushButton    *m_copyBtn      = nullptr;
    QCheckBox      *m_autoScrollCb = nullptr;
    QLabel         *m_lineCountLbl = nullptr;
    // Matches panel (list of all lines containing the search text)
    QPushButton    *m_matchBtn      = nullptr;
    QWidget        *m_matchPanel    = nullptr;
    QListWidget    *m_matchList     = nullptr;
    QLabel         *m_matchCountLbl = nullptr;
    QCheckBox      *m_caseCb        = nullptr;   // toolbar: "Aa" match case
    QCheckBox      *m_regexCb       = nullptr;   // toolbar: "Regex"
    QString         m_matchError;                // non-empty = invalid regex
    QCheckBox      *m_noTsCb        = nullptr;
    QPushButton    *m_refreshBtn    = nullptr;
    QPushButton    *m_selectAllBtn  = nullptr;
    QPushButton    *m_copyMatchBtn  = nullptr;
    QTimer         *m_matchTimer    = nullptr;
    int             m_matchTotal    = 0;
    bool            m_matchTruncated = false;

    bool            m_autoScroll   = true;   // ON by default
    int             m_lineCount    = 0;

    static const QRegularExpression s_tagRe;
};