/*
 * Copyright Luka Jankovic 2025
 *
 * This file is part of Kubo.
 *
 * Kubo 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.
 *
 * Kubo 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
 * Kubo. If not, see <https://www.gnu.org/licenses/>.
 */

#include "kubo_command.h"

static inline void kubo_command_exit(struct kubo_context *context, char *rest);
static inline void kubo_command_write(struct kubo_context *context, char *rest);
static inline void kubo_command_read(struct kubo_context *context, char *rest);

static const struct kubo_command_data kubo_commands[] = {
    { ":q", kubo_command_exit },
    { ":w", kubo_command_write },
    { ":e", kubo_command_read }
};

static const size_t kubo_commands_size =
    sizeof(kubo_commands) / sizeof(kubo_commands[0]);

static struct kubo_char_arr command;

void kubo_command_init() { kubo_char_arr_init(&command); }

void kubo_command_cleanup() { kubo_char_arr_free(&command); }

void kubo_command_append_char(int c) { kubo_char_arr_add(&command, c); }

void kubo_command_pop() {
    if (command.count > 1) {
        kubo_char_arr_pop(&command);
    }
}

void kubo_command_accept_cmd(struct kubo_context *context) {
    char *cmd = kubo_command_get_str();
    cmd = strtok(cmd, " ");
    char *rest = strtok(NULL, " ");
    for (size_t i = 0; i < kubo_commands_size; i++) {
        if (strcmp(cmd, kubo_commands[i].input) == 0) {
            kubo_commands[i].function(context, rest);
            return;
        }
    }
    free(cmd);
}

char *kubo_command_get_str() { return kubo_char_arr_build_str(&command); }

void kubo_command_clear() { kubo_char_arr_clear(&command); }

static inline void kubo_command_exit(struct kubo_context *context, char *rest) {
    (void)rest;
    context->exit_pending = true;
}

static inline void kubo_command_write(struct kubo_context *context,
                                      char *rest) {
    if (rest) {
        context->file_name = rest;
    }

    kubo_file_write(context);
}

static inline void kubo_command_read(struct kubo_context *context, char *rest) {
    if (rest) {
        context->file_name = rest;
    } else {
        return;
    }

    *context = kubo_file_parse(rest);
}