/*
 * This Source Code Form is subject to the terms of the Mozilla Public
 * License, v. 2.0. If a copy of the MPL was not distributed with this
 * file, You can obtain one at https://mozilla.org/MPL/2.0/.
 */
#include <filesystem>
#include <memory>
#include <iostream>
#include <variant>

#include <boost/program_options.hpp>

import katja.database;
import katja.repository;
import katja.sbo;
import katja.configuration;
import katja.command_line;

static void get_updates(std::shared_ptr<katja::repository> repository, katja::package_database&& installed_database)
{
    const std::vector<katja::package_identifier> packages = repository->get_updates(installed_database);

    for (const auto& package_identifier : packages)
    {
        std::cout << package_identifier.to_string() << std::endl;
    }
    std::cout << std::endl << "Updates " << '(' << packages.size() << ')' << std::endl;
}

static void search_names(std::shared_ptr<katja::repository> repository, const std::string& needle)
{
    const std::vector<katja::package_identifier> packages = repository->search_names("x86-64", needle);

    for (const auto& package_identifier : packages)
    {
        std::cout << package_identifier.to_string() << std::endl;
    }
}

static void handle_subcommand(const katja::configuration& configuration,
        const katja::subcommand& command)
{
    if (std::holds_alternative<katja::updates_command>(command))
    {
        katja::package_database installed_database = katja::read_installed_database();

        for (const auto& [repository_name, repository_configuration] : configuration)
        {
            std::filesystem::path slackbuild_repository{ repository_configuration.path };
            auto repository = std::make_shared<katja::sbo_repository>(slackbuild_repository);

            get_updates(repository, std::move(installed_database));
        }
    }
    else if (std::holds_alternative<katja::search_command>(command))
    {
        for (const auto& [repository_name, repository_configuration] : configuration)
        {
            std::filesystem::path slackbuild_repository{ repository_configuration.path };
            auto repository = std::make_shared<katja::sbo_repository>(slackbuild_repository);

            search_names(repository, std::get<katja::search_command>(command).needle);
        }
    }
}

int main(int argc, const char **argv)
{
    katja::configuration configuration = katja::read_configuration("katja.toml");
    katja::command_line command_line = katja::parse_command_line(argc, argv);
    katja::subcommand subcommand = katja::parse_subcommand(command_line);

    handle_subcommand(configuration, subcommand);

    return EXIT_SUCCESS;
}