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/*
 * 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 "config.h"
#include <curl/curl.h>
#include <sqlite3.h>
#include "pkgtools.h"

namespace katja
{
/**
 * katja::Pkgtools::download:
 * @job_data: A #JobData.
 * @dest_dir_name: Destination directory.
 * @pkg_name: Package name.
 *
 * Download a package.
 *
 * Returns: %TRUE on success, %FALSE otherwise.
 **/
bool Pkgtools::download(JobData *job_data, const char *dest_dir_name, char *pkg_name) noexcept
{
    char *dest_filename, *source_url;
    bool ret = false;
    sqlite3_stmt *statement = nullptr;
    CURL *curl = nullptr;

    if ((sqlite3_prepare_v2(job_data->db,
                            "SELECT location, (full_name || '.' || ext) FROM pkglist "
                            "WHERE name LIKE @name AND repo_order = @repo_order",
                            -1,
                            &statement,
                            nullptr) != SQLITE_OK))
    {
        return false;
    }
    sqlite3_bind_text(statement, 1, pkg_name, -1, SQLITE_TRANSIENT);
    sqlite3_bind_int(statement, 2, this->get_order());

    if (sqlite3_step(statement) == SQLITE_ROW)
    {
        dest_filename = g_build_filename(dest_dir_name, sqlite3_column_text(statement, 1), nullptr);
        source_url = g_strconcat(this->get_mirror(),
                                 sqlite3_column_text(statement, 0),
                                 "/",
                                 sqlite3_column_text(statement, 1),
                                 nullptr);

        ret = g_file_test(dest_filename, G_FILE_TEST_EXISTS)
            || get_file(&curl, source_url, dest_filename) == CURLE_OK;

        if (curl)
        {
            curl_easy_cleanup(curl);
        }
        g_free(source_url);
        g_free(dest_filename);
    }
    sqlite3_finalize(statement);

    return ret;
}

/**
 * katja::Pkgtools::install:
 * @job_data: A #JobData.
 * @pkg_name: Package name.
 *
 * Install a package.
 **/
void Pkgtools::install(JobData *job_data, char *pkg_name) noexcept
{
    char *pkg_filename, *cmd_line;
    sqlite3_stmt *statement = nullptr;

    if ((sqlite3_prepare_v2(job_data->db,
                            "SELECT (full_name || '.' || ext) FROM pkglist "
                            "WHERE name LIKE @name AND repo_order = @repo_order",
                            -1,
                            &statement,
                            nullptr) != SQLITE_OK))
    {
        return;
    }

    sqlite3_bind_text(statement, 1, pkg_name, -1, SQLITE_TRANSIENT);
    sqlite3_bind_int(statement, 2, this->get_order());

    if (sqlite3_step(statement) == SQLITE_ROW)
    {
        pkg_filename = g_build_filename(LOCALSTATEDIR,
                                        "cache",
                                        "PackageKit",
                                        "downloads",
                                        sqlite3_column_text(statement, 0),
                                        nullptr);
        cmd_line = g_strconcat("/sbin/upgradepkg --install-new ", pkg_filename, nullptr);
        g_spawn_command_line_sync(cmd_line, nullptr, nullptr, nullptr, nullptr);
        g_free(cmd_line);

        g_free(pkg_filename);
    }
    sqlite3_finalize(statement);
}

Pkgtools::~Pkgtools() noexcept
{
}

/**
 * katja::Pkgtools::get_name:
 *
 * Retrieves the repository name.
 *
 * Returns: Repository name.
 **/
const char *Pkgtools::get_name() const noexcept
{
    return this->name;
}

/**
 * katja::Pkgtools::get_mirror:
 *
 * Retrieves the repository mirror.
 *
 * Returns: Repository mirror.
 **/
const char *Pkgtools::get_mirror() const noexcept
{
    return this->mirror;
}

/**
 * katja::Pkgtools::get_order:
 *
 * Retrieves the repository order.
 *
 * Returns: Repository order.
 **/
guint8 Pkgtools::get_order() const noexcept
{
    return this->order;
}

/**
 * katja::Pkgtools:is_blacklisted:
 * @pkg: Package name to check for.
 *
 * Checks whether a package is blacklisted.
 *
 * Returns: %TRUE if the package is blacklisted, %FALSE otherwise.
 **/
bool Pkgtools::is_blacklisted(const char *pkg) const noexcept
{
    return this->blacklist
        && g_regex_match (this->blacklist, pkg, static_cast<GRegexMatchFlags>(0), nullptr);
}

}