#pragma once

#include "../context/init_context.inl"
#include "../context/create_update_context.inl"
#include "../context/read_context.inl"
#include "../context/destroy_context.inl"

#include "driver_impl/where.inl"
#include "driver_impl/limit.inl"
#include "driver_impl/order_by.inl"

namespace cpphibernate {
namespace mariadb {

    /* driver_impl_t */

    template<typename T_schema>
    driver_impl_t::driver_impl_t(driver_t& p_owner, T_schema&& p_schema)
        : owner (p_owner)
        , schema(make_schema(std::forward<T_schema>(p_schema)))
        { }

    void driver_impl_t::init(bool recreate) const
    {
        auto * connection = owner.connection();
        if (!connection)
            throw exception("Cpphibernate mariadb driver is not connected to any database!");
        ::cppmariadb::transaction_lock trans(*connection);
        schema->init(init_context(*schema, *connection, recreate));
        trans.commit();
    }

    template<typename T_dataset>
    void driver_impl_t::create(T_dataset& dataset) const
    {
        auto * connection = owner.connection();
        if (!connection)
            throw exception("Cpphibernate mariadb driver is not connected to any database!");
        create_update_impl_t<T_dataset>::apply(
            create_update_context(*schema, *connection, dataset));
    }

    template<typename T_dataset, typename T_modifiers>
    inline void driver_impl_t::read(T_dataset& dataset, const T_modifiers& modifiers) const
    {
        using dataset_type      = mp::decay_t<T_dataset>;
        using real_dataset_type = real_dataset_t<dataset_type>;

        auto * connection = owner.connection();
        if (!connection)
            throw exception("Cpphibernate mariadb driver is not connected to any database!");

        auto  dataset_id = get_type_id(hana::type_c<real_dataset_type>);
        auto& table      = schema->table(dataset_id);
        auto  context    = make_read_context(*schema, *connection, dataset, owner._filter);

        context.where    = build_where(*schema, modifiers).query(*connection);
        context.limit    = build_limit(modifiers).query(*connection);
        context.order_by = build_order_by(*schema, modifiers).query(*connection);

        ::cppmariadb::transaction_lock trans(*connection);
        table.read(context);
        trans.commit();
    }

    template<typename T_dataset>
    void driver_impl_t::update(T_dataset& dataset) const
    {
        auto * connection = owner.connection();
        if (!connection)
            throw exception("Cpphibernate mariadb driver is not connected to any database!");
        create_update_impl_t<T_dataset>::apply(
            create_update_context(*schema, *connection, dataset, owner._filter));
    }

    template<typename T_dataset>
    void driver_impl_t::destroy(T_dataset& dataset) const
    {
        auto * connection = owner.connection();
        if (!connection)
            throw exception("Cpphibernate mariadb driver is not connected to any database!");
        destroy_impl_t<T_dataset>::apply(
            destroy_context(*schema, *connection, dataset));
    }

} }