File: option_binds.cpp

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// Copyright Contributors to the DNF5 project.
// Copyright Contributors to the libdnf project.
// SPDX-License-Identifier: LGPL-2.1-or-later
//
// This file is part of libdnf: https://github.com/rpm-software-management/libdnf/
//
// Libdnf is free software: you can redistribute it and/or modify
// it under the terms of the GNU Lesser General Public License as published by
// the Free Software Foundation, either version 2.1 of the License, or
// (at your option) any later version.
//
// Libdnf is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
// GNU Lesser General Public License for more details.
//
// You should have received a copy of the GNU Lesser General Public License
// along with libdnf.  If not, see <https://www.gnu.org/licenses/>.

#include "libdnf5/conf/option_binds.hpp"

#include "libdnf5/utils/bgettext/bgettext-mark-domain.h"

#include <utility>

namespace libdnf5 {

OptionBindsOptionNotFoundError::OptionBindsOptionNotFoundError(const std::string & id)
    : OptionBindsError(M_("Option \"{}\" not found"), id) {}

OptionBindsOptionAlreadyExistsError::OptionBindsOptionAlreadyExistsError(const std::string & id)
    : OptionBindsError(M_("Option \"{}\" already exists"), id) {}

// ========== OptionBinds::Item class ===============
class OptionBinds::Item::Impl {
public:
    Impl(Option & option, NewStringFunc && new_string_func, GetValueStringFunc && get_value_string_func, bool add_value)
        : option(&option),
          new_str_func(std::move(new_string_func)),
          get_value_str_func(std::move(get_value_string_func)),
          is_append_option(add_value) {}

    Impl(Option & option) : option(&option) {};

private:
    friend OptionBinds::Item;
    Option * option;
    NewStringFunc new_str_func;
    GetValueStringFunc get_value_str_func;
    bool is_append_option{false};  // hint that new value be added/appended
};

OptionBinds::Item::Item(
    Option & option, NewStringFunc new_string_func, GetValueStringFunc get_value_string_func, bool add_value)
    : p_impl(new Impl(option, std::move(new_string_func), std::move(get_value_string_func), add_value)) {}

OptionBinds::Item::Item(Option & option) : p_impl(new Impl(option)) {}

OptionBinds::Item::~Item() = default;

Option::Priority OptionBinds::Item::get_priority() const {
    return p_impl->option->get_priority();
}

void OptionBinds::Item::new_string(Option::Priority priority, const std::string & value) {
    if (p_impl->new_str_func) {
        p_impl->new_str_func(priority, value);
    } else {
        p_impl->option->set(priority, value);
    }
}

std::string OptionBinds::Item::get_value_string() const {
    if (p_impl->get_value_str_func) {
        return p_impl->get_value_str_func();
    }
    return p_impl->option->get_value_string();
}

bool OptionBinds::Item::get_is_append_option() const {
    return p_impl->is_append_option;
}


// =========== OptionBinds class ===============
class OptionBinds::Impl {
private:
    friend OptionBinds;

    Container items;
};

OptionBinds::OptionBinds() : p_impl(new Impl()) {}
OptionBinds::OptionBinds(const OptionBinds & src) = default;
OptionBinds::~OptionBinds() = default;

OptionBinds::Item & OptionBinds::at(const std::string & id) {
    auto item = p_impl->items.find(id);
    if (item == p_impl->items.end()) {
        throw OptionBindsOptionNotFoundError(id);
    }
    return item->second;
}

const OptionBinds::Item & OptionBinds::at(const std::string & id) const {
    auto item = p_impl->items.find(id);
    if (item == p_impl->items.end()) {
        throw OptionBindsOptionNotFoundError(id);
    }
    return item->second;
}

OptionBinds::Item & OptionBinds::add(
    std::string id,
    Option & option,
    Item::NewStringFunc new_string_func,
    Item::GetValueStringFunc get_value_string_func,
    bool add_value) {
    auto item = p_impl->items.find(id);
    if (item != p_impl->items.end()) {
        throw OptionBindsOptionAlreadyExistsError(id);
    }
    auto res = p_impl->items.emplace(
        std::move(id), Item(option, std::move(new_string_func), std::move(get_value_string_func), add_value));
    return res.first->second;
}

OptionBinds::Item & OptionBinds::add(std::string id, Option & option) {
    auto item = p_impl->items.find(id);
    if (item != p_impl->items.end()) {
        throw OptionBindsOptionAlreadyExistsError(id);
    }
    auto res = p_impl->items.emplace(std::move(id), Item(option));
    return res.first->second;
}

bool OptionBinds::empty() const noexcept {
    return p_impl->items.empty();
}
std::size_t OptionBinds::size() const noexcept {
    return p_impl->items.size();
}
OptionBinds::iterator OptionBinds::begin() noexcept {
    return p_impl->items.begin();
}
OptionBinds::const_iterator OptionBinds::begin() const noexcept {
    return p_impl->items.begin();
}
OptionBinds::const_iterator OptionBinds::cbegin() const noexcept {
    return p_impl->items.cbegin();
}
OptionBinds::iterator OptionBinds::end() noexcept {
    return p_impl->items.end();
}
OptionBinds::const_iterator OptionBinds::end() const noexcept {
    return p_impl->items.end();
}
OptionBinds::const_iterator OptionBinds::cend() const noexcept {
    return p_impl->items.cend();
}
OptionBinds::iterator OptionBinds::find(const std::string & id) {
    return p_impl->items.find(id);
}
OptionBinds::const_iterator OptionBinds::find(const std::string & id) const {
    return p_impl->items.find(id);
}

}  // namespace libdnf5