/*
 * cmd_monitor.c
 *
 * Copyright (c) 2025 Umber Networks & Robert McMahon
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions are met:
 *
 * 1. Redistributions of source code must retain the above copyright notice,
 * this list of conditions and the following disclaimer.
 *
 * 2. 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.
 *
 * 3. Neither the name of the copyright holder 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 COPYRIGHT HOLDERS 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 COPYRIGHT HOLDER 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.
 */

#include <stdio.h>
#include <string.h>
#include <inttypes.h>
#include "esp_log.h"
#include "esp_console.h"
#include "argtable3/argtable3.h"
#include "wifi_controller.h"
#include "iperf.h"
#include "app_console.h"

// ============================================================================
// COMMAND: monitor
// ============================================================================

static struct {
    struct arg_lit *start, *stop, *status, *save, *reload;
    struct arg_lit *clear_nvs;
    struct arg_int *channel;
    struct arg_lit *help;
    struct arg_end *end;
} mon_args;

static int cmd_monitor(int argc, char **argv) {
    int nerrors = arg_parse(argc, argv, (void **)&mon_args);
    if (nerrors > 0) {
        arg_print_errors(stderr, mon_args.end, argv[0]);
        return 1;
    }

    if (mon_args.help->count > 0) {
        printf("Usage: monitor [--start|--stop] [-c <ch>] [--save|--reload]\n");
        return 0;
    }

    // --- Actions: NVS Management ---
    if (mon_args.clear_nvs->count > 0) {
        wifi_ctl_param_clear();
        printf("Monitor config cleared (Defaulting to Ch 6).\n");
        app_console_update_prompt();
        return 0;
    }

    if (mon_args.reload->count > 0) {
        wifi_ctl_param_reload();
        printf("Config reloaded from NVS.\n");
    }

    if (mon_args.channel->count > 0) {
        wifi_ctl_param_set_monitor_channel((uint8_t)mon_args.channel->ival[0]);
        printf("Channel set to %d (RAM).\n", mon_args.channel->ival[0]);
    }

    if (mon_args.save->count > 0) {
        if (wifi_ctl_param_save()) printf("Configuration saved to NVS.\n");
        else printf("No changes to save (NVS matches RAM).\n");
    }

    // --- Actions: Mode Switching ---
    if (mon_args.stop->count > 0) {
        wifi_ctl_switch_to_sta(WIFI_BW_HT20);
        printf("Switched to Station Mode.\n");
    }

    if (mon_args.start->count > 0) {
        if (wifi_ctl_switch_to_monitor(0, WIFI_BW_HT20) == ESP_OK) printf("Monitor Mode Started.\n");
        else printf("Failed to start Monitor Mode.\n");
    }

    // --- Status ---
    if (mon_args.status->count > 0) {
        wifi_ctl_mode_t mode = wifi_ctl_get_mode();
        printf("MONITOR STATUS:\n");
        printf("  Mode:   %s\n", (mode == WIFI_CTL_MODE_MONITOR) ? "MONITOR" : "STATION");
        printf("  Active: Ch %d\n", (mode == WIFI_CTL_MODE_MONITOR) ? wifi_ctl_get_monitor_channel() : 0);
        printf("  Staged: Ch %d\n", wifi_ctl_param_get_monitor_channel());
        printf("  Frames: %" PRIu32 "\n", wifi_ctl_get_monitor_frame_count());
    }

    app_console_update_prompt();
    return 0;
}

void register_monitor_cmd(void) {
    mon_args.start     = arg_lit0(NULL, "start", "Start");
    mon_args.stop      = arg_lit0(NULL, "stop", "Stop");
    mon_args.status    = arg_lit0(NULL, "status", "Status");
    mon_args.save      = arg_lit0(NULL, "save", "Save");
    mon_args.reload    = arg_lit0(NULL, "reload", "Reload");
    mon_args.clear_nvs = arg_lit0(NULL, "clear-nvs", "Clear NVS");
    mon_args.channel   = arg_int0("c", "channel", "<n>", "Chan");
    mon_args.help      = arg_lit0("h", "help", "Help");
    mon_args.end       = arg_end(20);

    const esp_console_cmd_t cmd = {
        .command = "monitor",
        .help = "Monitor Mode",
        .func = &cmd_monitor,
        .argtable = &mon_args
    };
    ESP_ERROR_CHECK(esp_console_cmd_register(&cmd));
}