website/backend/src/template.cxx

/*
 Copyright (C) 2022 Ivan Polyakov

 This file is part of vilor's website.

 Vilor's website is free software: you can redistribute it and/or modify
 it under the terms of the GNU General Public License as published by
 the Free Software Foundation, either version 3 of the License, or
 (at your option) any later version.

 Vilor's website 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 General Public License for more details.

 You should have received a copy of the GNU General Public License
 along with this program.  If not, see <https://www.gnu.org/licenses/>.
 */
#include "template.h"
#include <inja/inja.hpp>
#include <nlohmann/json.hpp>
#include <stdio.h>

int rendertpl(const char *path, const char **dest, struct param params[])
{
    nlohmann::json data;

    for (int i = 0; params[i].key; i++) {
#ifdef DEBUG_MODE
        printf("Key: %s; Val: %s;\n", params[i].key, params[i].val);
#endif
        data[params[i].key] = params[i].val;
    }

    inja::Environment env;
    std::string result;

    try {
        result = env.render_file(path, data);
        *dest = result.c_str();
    } catch (const std::exception &e) {
        *dest = 0;
        fprintf(stderr, "%s\n", e.what());
        return 1;
    }

    return 0;
}