// Copyright 2021 Espressif Systems (Shanghai) PTE LTD
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
//     http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.

#include <esp_heap_caps.h>
#include <esp_log.h>
#include <esp_matter_console.h>
#include <esp_timer.h>
#include <string.h>

static const char *TAG = "esp_matter_console_diagnostics";

static esp_err_t mem_dump_console_handler(int argc, char *argv[])
{
    printf("\tDescription\tInternal\tSPIRAM\n");
    printf("Current Free Memory\t%d\t\t%d\n",
           heap_caps_get_free_size(MALLOC_CAP_8BIT) - heap_caps_get_free_size(MALLOC_CAP_SPIRAM),
           heap_caps_get_free_size(MALLOC_CAP_SPIRAM));
    printf("Largest Free Block\t%d\t\t%d\n", heap_caps_get_largest_free_block(MALLOC_CAP_8BIT | MALLOC_CAP_INTERNAL),
           heap_caps_get_largest_free_block(MALLOC_CAP_SPIRAM));
    printf("Min. Ever Free Size\t%d\t\t%d\n", heap_caps_get_minimum_free_size(MALLOC_CAP_8BIT | MALLOC_CAP_INTERNAL),
           heap_caps_get_minimum_free_size(MALLOC_CAP_SPIRAM));
    return ESP_OK;
}

static esp_err_t up_time_console_handler(int argc, char *argv[])
{
    printf("%s: Uptime of the device: %lld milliseconds\n", TAG, esp_timer_get_time() / 1000);
    return ESP_OK;
}

static esp_err_t esp_matter_console_diagnostics_handler(int argc, char **argv)
{
    if (argc == 1 && strncmp(argv[0], "mem-dump", sizeof("mem-dump")) == 0) {
        return mem_dump_console_handler(argc, argv);
    } else if (argc == 1 && strncmp(argv[0], "up-time", sizeof("up-time")) == 0) {
        return up_time_console_handler(argc, argv);
    } else {
        ESP_LOGE(TAG, "Incorrect arguments");
        return ESP_FAIL;
    }
    return ESP_OK;
}

esp_err_t esp_matter_console_diagnostics_register_commands()
{
    esp_matter_console_command_t command = {
        .name = "diagnostics",
        .description = "Diagnostic commands. Usage matter esp diagnostics <diagnostic_command>. Diagnostics commands: "
                       "mem-dump, up-time",
        .handler = esp_matter_console_diagnostics_handler,
    };
    return esp_matter_console_add_command(&command);
}