/**
 * Copyright (c) 2013, Timothy Stack
 *
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions are met:
 *
 * * Redistributions of source code must retain the above copyright notice, this
 * list of conditions and the following disclaimer.
 * * Redistributions in binary form must reproduce the above copyright notice,
 * this list of conditions and the following disclaimer in the documentation
 * and/or other materials provided with the distribution.
 * * Neither the name of Timothy Stack nor the names of its contributors
 * may be used to endorse or promote products derived from this software
 * without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ''AS IS'' AND ANY
 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
 * DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE FOR ANY
 * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
 * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
 * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 *
 * @file lnav_config.hh
 */

#ifndef _lnav_config_hh
#define _lnav_config_hh

#include <sys/queue.h>

#include <map>
#include <string>
#include <vector>
#include <unordered_map>

class lnav_config_listener {
public:
    lnav_config_listener() {
        this->lcl_next = LISTENER_LIST;
        LISTENER_LIST = this;
    }

    virtual ~lnav_config_listener() {
    };

    virtual void reload_config() {

    };

    static lnav_config_listener *LISTENER_LIST;

    lnav_config_listener *lcl_next;
};

/**
 * Compute the path to a file in the user's '.lnav' directory.
 *
 * @param  sub The path to the file in the '.lnav' directory.
 * @return     The full path
 */
std::string dotlnav_path(const char *sub);

/**
 * Check if an experimental feature should be enabled by
 * examining the LNAV_EXP environment variable.
 *
 * @param feature_name The feature name to check for in
 *   the LNAV_EXP environment variable.
 *
 * @return True if the feature was mentioned in the env
 *   var and should be enabled.
 */
bool check_experimental(const char *feature_name);

/**
 * Ensure that the '.lnav' directory exists.
 */
void ensure_dotlnav(void);

void install_git_format(const char *repo);

void install_extra_formats();

struct key_map {
    std::map<std::string, std::vector<std::string>> km_seq_to_cmd;
};

struct _lnav_config {
    std::string lc_ui_clock_format;
    bool lc_ui_dim_text;
    bool lc_ui_default_colors;
    std::string lc_ui_keymap;
    std::unordered_map<std::string, key_map> lc_ui_keymaps;
    std::map<std::string, std::string> lc_ui_key_overrides;
    std::map<std::string, std::string> lc_global_vars;
};

extern struct _lnav_config lnav_config;

extern struct json_path_handler lnav_config_handlers[];

void load_config(const std::vector<std::string> &extra_paths,
                 std::vector<std::string> &errors);

void reset_config(const std::string &path);

void reload_config();

std::string save_config();

#endif
