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//
// Copyright (c) 2004-2021 musikcube team
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//////////////////////////////////////////////////////////////////////////////

#pragma once

#include <musikcore/config.h>
#include <musikcore/db/Statement.h>
#include <musikcore/db/ScopedTransaction.h>

#include <map>
#include <mutex>

struct sqlite3;
struct sqlite3_stmt;

namespace musik { namespace core { namespace db {

    typedef enum {
        Okay = 0,
        Row = 100,
        Done = 101,
        Error = 1
    } ReturnCode;

    class Connection {
        public:
            DELETE_COPY_AND_ASSIGNMENT_DEFAULTS(Connection)

            Connection() noexcept;
            ~Connection();

            int Open(const std::string &database, unsigned int options = 0, unsigned int cache = 0);
            int Close() noexcept;
            int Execute(const char* sql);

            int64_t LastInsertedId() noexcept;

            int LastModifiedRowCount() noexcept;

            void Interrupt();
            void Checkpoint() noexcept;

        private:
            void Initialize(unsigned int cache);
            void UpdateReferenceCount(bool init);
            int StepStatement(sqlite3_stmt *stmt) noexcept;

            friend class Statement;
            friend class ScopedTransaction;

            int transactionCounter;
            sqlite3 *connection;
            std::mutex mutex;
    };

} } }