#pragma once

#include <QList>
#include <QSqlDatabase>
#include <QString>
#include <QStringList>
#include <QUrl>

// Browsing history in history.sqlite under AppDataLocation. Two tables:
// "visits" is an append-only log of every page load; "urls" holds one row per
// URL with its latest title and visit time, and is what completion searches.
//
// Queries run synchronously on the GUI thread. That is fine for SQLite at
// browser-history sizes, with WAL so a write never waits on a full fsync.
class History
{
public:
    struct Entry {
        QString url;
        QString title;
    };

    History();
    ~History();

    History(const History &) = delete;
    History &operator=(const History &) = delete;

    bool isOpen() const { return m_open; }

    void addVisit(const QUrl &url, const QString &title);
    // Pages often set their title after the load finished.
    void updateTitle(const QUrl &url, const QString &title);

    // Most recently visited first. Every word must appear in the URL or the
    // title, case-insensitively.
    QList<Entry> search(const QStringList &words, int limit) const;

    bool clear();

    // Whether a URL belongs in history at all: no internal or data pages.
    static bool isRecordable(const QUrl &url);

private:
    bool exec(const QString &sql);

    QSqlDatabase m_db;
    bool m_open = false;
};