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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include "esp_event.h"
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#include "esp_heap_caps.h"
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#include "esp_log.h"
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#include "esp_netif.h"
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#include "esp_psram.h"
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#include "esp_wifi.h"
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#include "freertos/FreeRTOS.h"
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#include "freertos/event_groups.h"
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#include "freertos/task.h"
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#include "led_strip.h"
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#include "radio.h"
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#include "signaling.h"
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#include "wifi_private.h"
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static EventGroupHandle_t wifi_events;
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static led_strip_handle_t led;
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void radio_emit(cJSON *message)
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{
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    if (!message) return;
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    if (signaling_observe(message)) { cJSON_Delete(message); return; }
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    char *text = cJSON_PrintUnformatted(message);
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    if (text) { printf("PROBE %s\n", text); free(text); }
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    cJSON_Delete(message);
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}
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int radio_set_led(unsigned r, unsigned g, unsigned b)
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{
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    esp_err_t err = led_strip_set_pixel(led, 0, r, g, b);
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    return err == ESP_OK ? led_strip_refresh(led) : err;
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}
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static void wifi_event(void *arg, esp_event_base_t base, int32_t id, void *data)
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{
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    if (base == IP_EVENT && id == IP_EVENT_STA_GOT_IP) xEventGroupSetBits(wifi_events, BIT0);
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    else if (base == WIFI_EVENT && id == WIFI_EVENT_STA_DISCONNECTED) {
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        xEventGroupClearBits(wifi_events, BIT0);
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        esp_wifi_connect();
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    }
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}
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bool radio_network_ready(void)
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{
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    return wifi_events && (xEventGroupGetBits(wifi_events) & BIT0);
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}
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void app_main(void)
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{
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    setvbuf(stdout, NULL, _IONBF, 0);
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    esp_log_level_set("wifi", ESP_LOG_WARN);
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    led_strip_config_t strip = {.strip_gpio_num = 38, .max_leds = 1};
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    led_strip_rmt_config_t rmt = {.resolution_hz = 10000000};
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    ESP_ERROR_CHECK(led_strip_new_rmt_device(&strip, &rmt, &led));
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    radio_set_led(8, 4, 0);
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    ESP_ERROR_CHECK(esp_netif_init());
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    ESP_ERROR_CHECK(esp_event_loop_create_default());
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    esp_netif_create_default_wifi_sta();
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    wifi_events = xEventGroupCreate();
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    wifi_init_config_t init = WIFI_INIT_CONFIG_DEFAULT();
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    init.nvs_enable = 0;
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    ESP_ERROR_CHECK(esp_wifi_init(&init));
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    ESP_ERROR_CHECK(esp_wifi_set_storage(WIFI_STORAGE_RAM));
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    ESP_ERROR_CHECK(esp_event_handler_register(WIFI_EVENT, ESP_EVENT_ANY_ID, wifi_event, NULL));
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    ESP_ERROR_CHECK(esp_event_handler_register(IP_EVENT, IP_EVENT_STA_GOT_IP, wifi_event, NULL));
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    wifi_config_t config = {0};
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    memcpy(config.sta.ssid, WIFI_SSID, sizeof(WIFI_SSID) - 1);
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    memcpy(config.sta.password, WIFI_PASSWORD, sizeof(WIFI_PASSWORD) - 1);
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    config.sta.threshold.authmode = WIFI_AUTH_WPA2_PSK;
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    config.sta.sae_pwe_h2e = WPA3_SAE_PWE_BOTH;
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    ESP_ERROR_CHECK(esp_wifi_set_mode(WIFI_MODE_STA));
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    ESP_ERROR_CHECK(esp_wifi_set_config(WIFI_IF_STA, &config));
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    ESP_ERROR_CHECK(esp_wifi_start());
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    ESP_ERROR_CHECK(esp_wifi_set_ps(WIFI_PS_NONE));
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    ESP_ERROR_CHECK(esp_wifi_connect());
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    xEventGroupWaitBits(wifi_events, BIT0, false, false, portMAX_DELAY);
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    radio_set_led(0, 12, 4);
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    cJSON *ready = cJSON_CreateObject();
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    cJSON_AddStringToObject(ready, "event", "hardware_ready");
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    cJSON_AddBoolToObject(ready, "wifi", true);
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    cJSON_AddNumberToObject(ready, "psram_bytes", esp_psram_get_size());
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    cJSON_AddNumberToObject(ready, "internal_free", heap_caps_get_free_size(MALLOC_CAP_INTERNAL));
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    radio_emit(ready);
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    radio_init();
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    signaling_start();
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    char *line = calloc(1, 16384);
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    if (!line) abort();
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    size_t used = 0;
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    bool overflow = false;
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    for (;;) {
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        int ch = getchar();
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        if (ch == EOF) { clearerr(stdin); vTaskDelay(pdMS_TO_TICKS(10)); }
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        else if (ch == '\n') {
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            line[used] = 0;
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            cJSON *command = overflow ? NULL : cJSON_Parse(line);
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            if (command) { radio_command(command); cJSON_Delete(command); }
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            used = 0;
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            overflow = false;
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        } else if (ch != '\r' && !overflow) {
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            if (used < 16383) line[used++] = ch;
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            else overflow = true;
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        }
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    }
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}