#include <stdio.h>
#include <string.h>
#include <sdkconfig.h>
#include <freertos/FreeRTOS.h>
#include <freertos/task.h>
#include <freertos/queue.h>
#include <esp_system.h>
#include <esp_err.h>
#include <esp_log.h>
#include <nvs_flash.h>
#include <nvs.h>
#include "driver/uart.h"
#include "hardware.h"
#include "managed_i2c.h"
#include "pax_gfx.h"
#include "sdcard.h"
#include "appfs.h"

#include "rp2040.h"
#include "rp2040bl.h"

#include "fpga_test.h"

#include "menu.h"
#include "system_wrapper.h"
#include "graphics_wrapper.h"
#include "appfs_wrapper.h"
#include "settings.h"
#include "wifi_connection.h"
#include "rp2040_updater.h"

#include "ws2812.h"

#include "esp32/rom/crc.h"

#include "efuse.h"

#include "wifi_ota.h"

#include "esp_vfs.h"
#include "esp_vfs_fat.h"

#include "fpga_download.h"

static const char *TAG = "main";

typedef enum action {
    ACTION_NONE,
    ACTION_APPFS,
    ACTION_INSTALLER,
    ACTION_SETTINGS,
    ACTION_OTA,
    ACTION_FPGA,
    ACTION_FPGA_DL,
    ACTION_RP2040_BL,
    ACTION_WIFI_CONNECT,
    ACTION_WIFI_SCAN,
    ACTION_WIFI_MANUAL,
    ACTION_WIFI_LIST,
    ACTION_BACK,
    ACTION_FILE_BROWSER,
    ACTION_FILE_BROWSER_INT,
    ACTION_UNINSTALL
} menu_action_t;

typedef struct _menu_args {
    appfs_handle_t fd;
    menu_action_t action;
} menu_args_t;

void appfs_store_app(pax_buf_t* pax_buffer, ILI9341* ili9341, char* path, char* label) {
    graphics_task(pax_buffer, ili9341, NULL, "Installing app...");
    esp_err_t res;
    appfs_handle_t handle;
    FILE* app_fd = fopen(path, "rb");
    if (app_fd == NULL) {
        graphics_task(pax_buffer, ili9341, NULL, "Failed to open file");
        ESP_LOGE(TAG, "Failed to open file");
        vTaskDelay(100 / portTICK_PERIOD_MS);
        return;
    }
    size_t app_size;
    uint8_t* app = load_file_to_ram(app_fd, &app_size);
    if (app == NULL) {
        graphics_task(pax_buffer, ili9341, NULL, "Failed to load app to RAM");
        ESP_LOGE(TAG, "Failed to load application into RAM");
        vTaskDelay(100 / portTICK_PERIOD_MS);
        return;
    }
    
    ESP_LOGI(TAG, "Application size %d", app_size);
    
    res = appfsCreateFile(label, app_size, &handle);
    if (res != ESP_OK) {
        graphics_task(pax_buffer, ili9341, NULL, "Failed to create on AppFS");
        ESP_LOGE(TAG, "Failed to create file on AppFS (%d)", res);
        vTaskDelay(100 / portTICK_PERIOD_MS);
        free(app);
        return;
    }
    res = appfsWrite(handle, 0, app, app_size);
    if (res != ESP_OK) {
        graphics_task(pax_buffer, ili9341, NULL, "Failed to write to AppFS");
        ESP_LOGE(TAG, "Failed to write to file on AppFS (%d)", res);
        vTaskDelay(100 / portTICK_PERIOD_MS);
        free(app);
        return;
    }
    free(app);
    ESP_LOGI(TAG, "Application is now stored in AppFS");
    graphics_task(pax_buffer, ili9341, NULL, "App installed!");
    vTaskDelay(100 / portTICK_PERIOD_MS);
    return;
}

void menu_launcher(xQueueHandle buttonQueue, pax_buf_t* pax_buffer, ILI9341* ili9341, menu_action_t* menu_action, appfs_handle_t* appfs_fd) {
    menu_t* menu = menu_alloc("Main menu");
    *appfs_fd = APPFS_INVALID_FD;
    *menu_action = ACTION_NONE;
    
    while (1) {
        *appfs_fd = appfsNextEntry(*appfs_fd);
        if (*appfs_fd == APPFS_INVALID_FD) break;
        const char* name = NULL;
        appfsEntryInfo(*appfs_fd, &name, NULL);
        menu_args_t* args = malloc(sizeof(menu_args_t));
        args->fd = *appfs_fd;
        args->action = ACTION_APPFS;
        menu_insert_item(menu, name, NULL, (void*) args, -1);
    }
    *appfs_fd = APPFS_INVALID_FD;

    menu_args_t* install_args = malloc(sizeof(menu_args_t));
    install_args->action = ACTION_INSTALLER;
    menu_insert_item(menu, "Hatchery", NULL, install_args, -1);
    
    menu_args_t* settings_args = malloc(sizeof(menu_args_t));
    settings_args->action = ACTION_SETTINGS;
    menu_insert_item(menu, "WiFi settings", NULL, settings_args, -1);
    
    menu_args_t* ota_args = malloc(sizeof(menu_args_t));
    ota_args->action = ACTION_OTA;
    menu_insert_item(menu, "Firmware update", NULL, ota_args, -1);
    
    menu_args_t* fpga_dl_args = malloc(sizeof(menu_args_t));
    fpga_dl_args->action = ACTION_FPGA_DL;
    menu_insert_item(menu, "FPGA download", NULL, fpga_dl_args, -1);

    menu_args_t* fpga_args = malloc(sizeof(menu_args_t));
    fpga_args->action = ACTION_FPGA;
    menu_insert_item(menu, "FPGA test", NULL, fpga_args, -1);
    
    menu_args_t* rp2040bl_args = malloc(sizeof(menu_args_t));
    rp2040bl_args->action = ACTION_RP2040_BL;
    menu_insert_item(menu, "RP2040 bootloader", NULL, rp2040bl_args, -1);
    
    menu_args_t* wifi_connect_args = malloc(sizeof(menu_args_t));
    wifi_connect_args->action = ACTION_WIFI_CONNECT;
    menu_insert_item(menu, "WiFi connect", NULL, wifi_connect_args, -1);
    
    menu_args_t* file_browser_args = malloc(sizeof(menu_args_t));
    file_browser_args->action = ACTION_FILE_BROWSER;
    menu_insert_item(menu, "File browser (sd card)", NULL, file_browser_args, -1);
    
    menu_args_t* file_browser_int_args = malloc(sizeof(menu_args_t));
    file_browser_int_args->action = ACTION_FILE_BROWSER_INT;
    menu_insert_item(menu, "File browser (internal)", NULL, file_browser_int_args, -1);
    
    menu_args_t* uninstall_args = malloc(sizeof(menu_args_t));
    uninstall_args->action = ACTION_UNINSTALL;
    menu_insert_item(menu, "Uninstall app", NULL, uninstall_args, -1);

    bool render = true;
    menu_args_t* menuArgs = NULL;

    while (1) {
        rp2040_input_message_t buttonMessage = {0};
        if (xQueueReceive(buttonQueue, &buttonMessage, 16 / portTICK_PERIOD_MS) == pdTRUE) {
            uint8_t pin = buttonMessage.input;
            bool value = buttonMessage.state;
            switch(pin) {
                case RP2040_INPUT_JOYSTICK_DOWN:
                    if (value) {
                        menu_navigate_next(menu);
                        render = true;
                    }
                    break;
                case RP2040_INPUT_JOYSTICK_UP:
                    if (value) {
                        menu_navigate_previous(menu);
                        render = true;
                    }
                    break;
                case RP2040_INPUT_BUTTON_ACCEPT:
                    if (value) {
                        menuArgs = menu_get_callback_args(menu, menu_get_position(menu));
                    }
                    break;
                default:
                    break;
            }
        }

        if (render) {
            graphics_task(pax_buffer, ili9341, menu, NULL);
            render = false;
        }
        
        if (menuArgs != NULL) {
            *appfs_fd = menuArgs->fd;
            *menu_action = menuArgs->action;
            break;
        }
    }
    
    for (size_t index = 0; index < menu_get_length(menu); index++) {
        free(menu_get_callback_args(menu, index));
    }
    
    menu_free(menu);
}

void menu_wifi_settings(xQueueHandle buttonQueue, pax_buf_t* pax_buffer, ILI9341* ili9341, menu_action_t* menu_action) {
    menu_t* menu = menu_alloc("WiFi settings");
    *menu_action = ACTION_NONE;

    menu_args_t* wifi_scan_args = malloc(sizeof(menu_args_t));
    wifi_scan_args->action = ACTION_WIFI_SCAN;
    menu_insert_item(menu, "Add by scan...", NULL, wifi_scan_args, -1);
    
    menu_args_t* wifi_manual_args = malloc(sizeof(menu_args_t));
    wifi_manual_args->action = ACTION_WIFI_MANUAL;
    menu_insert_item(menu, "Add manually...", NULL, wifi_manual_args, -1);
    
    menu_args_t* wifi_list_args = malloc(sizeof(menu_args_t));
    wifi_list_args->action = ACTION_WIFI_LIST;
    menu_insert_item(menu, "List known networks", NULL, wifi_list_args, -1);
    
    menu_args_t* back_args = malloc(sizeof(menu_args_t));
    back_args->action = ACTION_BACK;
    menu_insert_item(menu, "< Back", NULL, back_args, -1);

    bool render = true;
    menu_args_t* menuArgs = NULL;

    while (1) {
        rp2040_input_message_t buttonMessage = {0};
        if (xQueueReceive(buttonQueue, &buttonMessage, 16 / portTICK_PERIOD_MS) == pdTRUE) {
            uint8_t pin = buttonMessage.input;
            bool value = buttonMessage.state;
            switch(pin) {
                case RP2040_INPUT_JOYSTICK_DOWN:
                    if (value) {
                        menu_navigate_next(menu);
                        render = true;
                    }
                    break;
                case RP2040_INPUT_JOYSTICK_UP:
                    if (value) {
                        menu_navigate_previous(menu);
                        render = true;
                    }
                    break;
                case RP2040_INPUT_BUTTON_ACCEPT:
                    if (value) {
                        menuArgs = menu_get_callback_args(menu, menu_get_position(menu));
                    }
                    break;
                default:
                    break;
            }
        }

        if (render) {
            graphics_task(pax_buffer, ili9341, menu, NULL);
            render = false;
        }
        
        if (menuArgs != NULL) {
            *menu_action = menuArgs->action;
            break;
        }
    }
    
    for (size_t index = 0; index < menu_get_length(menu); index++) {
        free(menu_get_callback_args(menu, index));
    }
    
    menu_free(menu);
}

void display_boot_screen(pax_buf_t* pax_buffer, ILI9341* ili9341) {
    pax_noclip(pax_buffer);
    pax_background(pax_buffer, 0x325aa8);
    pax_draw_text(pax_buffer, 0xFFFFFFFF, NULL, 18, 0, 20*0, "Starting launcher...");
    ili9341_write(ili9341, pax_buffer->buf);
}

void display_fatal_error(pax_buf_t* pax_buffer, ILI9341* ili9341, const char* line0, const char* line1, const char* line2, const char* line3) {
    pax_noclip(pax_buffer);
    pax_background(pax_buffer, 0xa85a32);
    if (line0 != NULL) pax_draw_text(pax_buffer, 0xFFFFFFFF, NULL, 18, 0, 20*0, line0);
    if (line1 != NULL) pax_draw_text(pax_buffer, 0xFFFFFFFF, NULL, 12, 0, 20*1, line1);
    if (line2 != NULL) pax_draw_text(pax_buffer, 0xFFFFFFFF, NULL, 12, 0, 20*2, line2);
    if (line3 != NULL) pax_draw_text(pax_buffer, 0xFFFFFFFF, NULL, 12, 0, 20*3, line3);
    ili9341_write(ili9341, pax_buffer->buf);
}

void wifi_connect_to_stored() {
    nvs_handle_t handle;
    nvs_open("system", NVS_READWRITE, &handle);
    char ssid[33];
    char password[33];
    size_t requiredSize;
    esp_err_t res = nvs_get_str(handle, "wifi.ssid", NULL, &requiredSize);
    if (res != ESP_OK) {
        strcpy(ssid, "");
    } else if (requiredSize < sizeof(ssid)) {
        res = nvs_get_str(handle, "wifi.ssid", ssid, &requiredSize);
        if (res != ESP_OK) strcpy(ssid, "");
        res = nvs_get_str(handle, "wifi.password", NULL, &requiredSize);
        if (res != ESP_OK) {
            strcpy(password, "");
        } else if (requiredSize < sizeof(password)) {
            res = nvs_get_str(handle, "wifi.password", password, &requiredSize);
            if (res != ESP_OK) strcpy(password, "");
        }
    }
    nvs_close(handle);
    wifi_connect(ssid, password, WIFI_AUTH_WPA2_PSK, 3);
}

void list_files_in_folder(const char* path) {
    DIR* dir = opendir(path);
    if (dir == NULL) {
        ESP_LOGE(TAG, "Failed to open directory %s", path);
        return;
    }
    
    struct dirent *ent;
    char type;
    char size[12];
    char tpath[255];
    char tbuffer[80];
    struct stat sb;
    struct tm *tm_info;
    char *lpath = NULL;
    int statok;

    uint64_t total = 0;
    int nfiles = 0;
    printf("T  Size      Date/Time         Name\n");
    printf("-----------------------------------\n");
    while ((ent = readdir(dir)) != NULL) {
        sprintf(tpath, path);
        if (path[strlen(path)-1] != '/') {
            strcat(tpath,"/");
        }
        strcat(tpath,ent->d_name);
        tbuffer[0] = '\0';

        // Get file stat
        statok = stat(tpath, &sb);

        if (statok == 0) {
            tm_info = localtime(&sb.st_mtime);
            strftime(tbuffer, 80, "%d/%m/%Y %R", tm_info);
        } else {
            sprintf(tbuffer, "                ");
        }

        if (ent->d_type == DT_REG) {
            type = 'f';
            nfiles++;
            if (statok) {
                strcpy(size, "       ?");
            } else {
                total += sb.st_size;
                if (sb.st_size < (1024*1024)) sprintf(size,"%8d", (int)sb.st_size);
                else if ((sb.st_size/1024) < (1024*1024)) sprintf(size,"%6dKB", (int)(sb.st_size / 1024));
                else sprintf(size,"%6dMB", (int)(sb.st_size / (1024 * 1024)));
            }
        } else {
            type = 'd';
            strcpy(size, "       -");
        }

        printf("%c  %s  %s  %s\r\n", type, size, tbuffer, ent->d_name);
    }

    printf("-----------------------------------\n");
    if (total < (1024*1024)) printf("   %8d", (int)total);
    else if ((total/1024) < (1024*1024)) printf("   %6dKB", (int)(total / 1024));
    else printf("   %6dMB", (int)(total / (1024 * 1024)));
    printf(" in %d file(s)\n", nfiles);
    printf("-----------------------------------\n");

    closedir(dir);
    free(lpath);
}

typedef struct _uninstall_menu_args {
    appfs_handle_t fd;
    char name[512];
} uninstall_menu_args_t;

void uninstall_browser(xQueueHandle buttonQueue, pax_buf_t* pax_buffer, ILI9341* ili9341) {
    appfs_handle_t appfs_fd = APPFS_INVALID_FD;
    menu_t* menu = menu_alloc("Uninstall application");
    while (1) {
        appfs_fd = appfsNextEntry(appfs_fd);
        if (appfs_fd == APPFS_INVALID_FD) break;
        const char* name = NULL;
        appfsEntryInfo(appfs_fd, &name, NULL);
        uninstall_menu_args_t* args = malloc(sizeof(uninstall_menu_args_t));
        if (args == NULL) {
            ESP_LOGE(TAG, "Failed to malloc() menu args");
            return;
        }
        args->fd = appfs_fd;
        sprintf(args->name, name);
        menu_insert_item(menu, name, NULL, (void*) args, -1);
    }
    uninstall_menu_args_t* menuArgs = NULL;
    bool render = true;
    bool exit = false;
    while (1) {
        rp2040_input_message_t buttonMessage = {0};
        if (xQueueReceive(buttonQueue, &buttonMessage, 16 / portTICK_PERIOD_MS) == pdTRUE) {
            uint8_t pin = buttonMessage.input;
            bool value = buttonMessage.state;
            switch(pin) {
                case RP2040_INPUT_JOYSTICK_DOWN:
                    if (value) {
                        menu_navigate_next(menu);
                        render = true;
                    }
                    break;
                case RP2040_INPUT_JOYSTICK_UP:
                    if (value) {
                        menu_navigate_previous(menu);
                        render = true;
                    }
                    break;
                case RP2040_INPUT_BUTTON_ACCEPT:
                    if (value) {
                        menuArgs = menu_get_callback_args(menu, menu_get_position(menu));
                    }
                    break;
                case RP2040_INPUT_BUTTON_HOME:
                    if (value) exit = true;
                    break;
                default:
                    break;
            }
        }

        if (render) {
            graphics_task(pax_buffer, ili9341, menu, NULL);
            render = false;
        }
        
        if (menuArgs != NULL) {
            char message[1024];
            sprintf(message, "Uninstalling %s...", menuArgs->name);
            printf("%s\n", message);
            graphics_task(pax_buffer, ili9341, menu, message);
            appfsDeleteFile(menuArgs->name);
            menuArgs = NULL;
            break;
        }
        
        if (exit) {
            break;
        }
    }
    
    for (size_t index = 0; index < menu_get_length(menu); index++) {
        free(menu_get_callback_args(menu, index));
    }
    
    menu_free(menu);
}

typedef struct _file_browser_menu_args {
    char type;
    char path[512];
    char label[512];
} file_browser_menu_args_t;

void find_parent_dir(char* path, char* parent) {
    size_t last_separator = 0;
    for (size_t index = 0; index < strlen(path); index++) {
        if (path[index] == '/') last_separator = index;
    }
    
    strcpy(parent, path);
    parent[last_separator] = '\0';
}

void file_browser(xQueueHandle buttonQueue, pax_buf_t* pax_buffer, ILI9341* ili9341, const char* initial_path) {
    char path[512] = {0};
    strncpy(path, initial_path, sizeof(path));
    while (true) {    
        menu_t* menu = menu_alloc(path);
        DIR* dir = opendir(path);
        if (dir == NULL) {
            ESP_LOGE(TAG, "Failed to open directory %s", path);
            return;
        }
        struct dirent *ent;
        file_browser_menu_args_t* pd_args = malloc(sizeof(file_browser_menu_args_t));
        pd_args->type = 'd';
        find_parent_dir(path, pd_args->path);
        printf("Parent dir: %s\n", pd_args->path);
        menu_insert_item(menu, "../", NULL, pd_args, -1);

        while ((ent = readdir(dir)) != NULL) {
            file_browser_menu_args_t* args = malloc(sizeof(file_browser_menu_args_t));
            sprintf(args->path, path);
            if (path[strlen(path)-1] != '/') {
                strcat(args->path,"/");
            }
            strcat(args->path,ent->d_name);

            if (ent->d_type == DT_REG) {
                args->type = 'f';
            } else {
                args->type = 'd';
            }

            printf("%c %s %s\r\n", args->type, ent->d_name, args->path);

            snprintf(args->label, sizeof(args->label), "%s%s", ent->d_name, (args->type == 'd') ? "/" : "");
            menu_insert_item(menu, args->label, NULL, args, -1);
        }
        closedir(dir);

        bool render = true;
        bool exit = false;
        file_browser_menu_args_t* menuArgs = NULL;

        while (1) {
            rp2040_input_message_t buttonMessage = {0};
            if (xQueueReceive(buttonQueue, &buttonMessage, 16 / portTICK_PERIOD_MS) == pdTRUE) {
                uint8_t pin = buttonMessage.input;
                bool value = buttonMessage.state;
                switch(pin) {
                    case RP2040_INPUT_JOYSTICK_DOWN:
                        if (value) {
                            menu_navigate_next(menu);
                            render = true;
                        }
                        break;
                    case RP2040_INPUT_JOYSTICK_UP:
                        if (value) {
                            menu_navigate_previous(menu);
                            render = true;
                        }
                        break;
                    case RP2040_INPUT_BUTTON_ACCEPT:
                        if (value) {
                            menuArgs = menu_get_callback_args(menu, menu_get_position(menu));
                        }
                        break;
                    case RP2040_INPUT_BUTTON_HOME:
                        if (value) exit = true;
                        break;
                    default:
                        break;
                }
            }

            if (render) {
                graphics_task(pax_buffer, ili9341, menu, NULL);
                render = false;
            }
            
            if (menuArgs != NULL) {
                if (menuArgs->type == 'd') {
                    strcpy(path, menuArgs->path);
                    break;
                } else {
                    printf("File selected: %s\n", menuArgs->path);
                    appfs_store_app(pax_buffer, ili9341, menuArgs->path, menuArgs->label);
                }
                menuArgs = NULL;
                render = true;
            }
            
            if (exit) {
                break;
            }
        }
        
        for (size_t index = 0; index < menu_get_length(menu); index++) {
            free(menu_get_callback_args(menu, index));
        }
        
        menu_free(menu);
    }
}

void app_main(void) {
    esp_err_t res;
    
    /* Initialize memory */
    uint8_t* framebuffer = heap_caps_malloc(ILI9341_BUFFER_SIZE, MALLOC_CAP_8BIT);
    if (framebuffer == NULL) {
        ESP_LOGE(TAG, "Failed to allocate framebuffer");
        esp_restart();
    }
    memset(framebuffer, 0, ILI9341_BUFFER_SIZE);
    
    pax_buf_t* pax_buffer = malloc(sizeof(pax_buf_t));
    if (framebuffer == NULL) {
        ESP_LOGE(TAG, "Failed to allocate buffer for PAX graphics library");
        esp_restart();
    }
    memset(pax_buffer, 0, sizeof(pax_buf_t));
    
    pax_buf_init(pax_buffer, framebuffer, ILI9341_WIDTH, ILI9341_HEIGHT, PAX_BUF_16_565RGB);
    
    /* Initialize hardware */
    
    efuse_protect();
    
    if (bsp_init() != ESP_OK) {
        ESP_LOGE(TAG, "Failed to initialize basic board support functions");
        esp_restart();
    }
    
    ILI9341* ili9341 = get_ili9341();
    if (ili9341 == NULL) {
        ESP_LOGE(TAG, "ili9341 is NULL");
        esp_restart();
    }

    
    display_boot_screen(pax_buffer, ili9341);
    
    if (bsp_rp2040_init() != ESP_OK) {
        ESP_LOGE(TAG, "Failed to initialize the RP2040 co-processor");
        display_fatal_error(pax_buffer, ili9341, "Failed to initialize", "RP2040 co-processor error", NULL, NULL);
        esp_restart();
    }
    
    RP2040* rp2040 = get_rp2040();
    if (rp2040 == NULL) {
        ESP_LOGE(TAG, "rp2040 is NULL");
        esp_restart();
    }

    rp2040_updater(rp2040, pax_buffer, ili9341); // Handle RP2040 firmware update & bootloader mode

    uint8_t rp2040_uid[8];
    if (rp2040_get_uid(rp2040, rp2040_uid) != ESP_OK) {
        ESP_LOGE(TAG, "Failed to get RP2040 UID");
        display_fatal_error(pax_buffer, ili9341, "Failed to initialize", "Failed to read UID", NULL, NULL);
        esp_restart();
    }

    printf("RP2040 UID: %02X%02X%02X%02X%02X%02X%02X%02X\n", rp2040_uid[0], rp2040_uid[1], rp2040_uid[2], rp2040_uid[3], rp2040_uid[4], rp2040_uid[5], rp2040_uid[6], rp2040_uid[7]);

    if (bsp_ice40_init() != ESP_OK) {
        ESP_LOGE(TAG, "Failed to initialize the ICE40 FPGA");
        display_fatal_error(pax_buffer, ili9341, "Failed to initialize", "ICE40 FPGA error", NULL, NULL);
        esp_restart();
    }
    
    ICE40* ice40 = get_ice40();
    if (ice40 == NULL) {
        ESP_LOGE(TAG, "ice40 is NULL");
        esp_restart();
    }
    
    if (bsp_bno055_init() != ESP_OK) {
        ESP_LOGE(TAG, "Failed to initialize the BNO055 position sensor");
        display_fatal_error(pax_buffer, ili9341, "Failed to initialize", "BNO055 sensor error", "Check I2C bus", "Remove SAO and try again");
        esp_restart();
    }

    BNO055* bno055 = get_bno055();
    if (bno055 == NULL) {
        ESP_LOGE(TAG, "bno055 is NULL");
        esp_restart();
    }

    if (bsp_bme680_init() != ESP_OK) {
        ESP_LOGE(TAG, "Failed to initialize the BME680 position sensor");
        display_fatal_error(pax_buffer, ili9341, "Failed to initialize", "BME680 sensor error", "Check I2C bus", "Remove SAO and try again");
        esp_restart();
    }

    BME680* bme680 = get_bme680();
    if (bme680 == NULL) {
        ESP_LOGE(TAG, "bme680 is NULL");
        esp_restart();
    }

    /* Start AppFS */
    res = appfs_init();
    if (res != ESP_OK) {
        ESP_LOGE(TAG, "AppFS init failed: %d", res);
        display_fatal_error(pax_buffer, ili9341, "Failed to initialize", "AppFS failed to initialize", "Flash may be corrupted", NULL);
        esp_restart();
    }
    
    /* Start NVS */
    res = nvs_init();
    if (res != ESP_OK) {
        ESP_LOGE(TAG, "NVS init failed: %d", res);
        display_fatal_error(pax_buffer, ili9341, "Failed to initialize", "NVS failed to initialize", "Flash may be corrupted", NULL);
        esp_restart();
    }
    
    /* Start internal filesystem */
    const esp_partition_t* fs_partition = esp_partition_find_first(ESP_PARTITION_TYPE_DATA, ESP_PARTITION_SUBTYPE_DATA_FAT, "locfd");
    
    wl_handle_t s_wl_handle = WL_INVALID_HANDLE;
    
    if (fs_partition != NULL) {
        const esp_vfs_fat_mount_config_t mount_config = {
            .format_if_mount_failed = true,
            .max_files              = 5,
            .allocation_unit_size   = 0,
        };
        esp_err_t res = esp_vfs_fat_spiflash_mount("/internal", "locfd", &mount_config, &s_wl_handle);
        if (res != ESP_OK) {
            ESP_LOGE(TAG, "failed to mount locfd (%d)", res);
        } else {
            ESP_LOGI(TAG, "Internal filesystem mounted");
        }
    } else {
        ESP_LOGE(TAG, "locfd partition not found");
    }
    
    /* Start SD card filesystem */
    res = mount_sd(GPIO_SD_CMD, GPIO_SD_CLK, GPIO_SD_D0, GPIO_SD_PWR, "/sd", false, 5);
    bool sdcard_ready = (res == ESP_OK);
    if (sdcard_ready) {
        ESP_LOGI(TAG, "SD card filesystem mounted");
        //list_files_in_folder("/sd");
    }

    /* Start LEDs */
    ws2812_init(GPIO_LED_DATA);
    uint8_t ledBuffer[15] = {50, 0, 0, 50, 0, 0, 50, 0, 0, 50, 0, 0, 50, 0, 0};
    ws2812_send_data(ledBuffer, sizeof(ledBuffer));
    
    /* Start WiFi */
    wifi_init();

    /* Launcher menu */
    while (true) {
        menu_action_t menu_action;
        appfs_handle_t appfs_fd;
        menu_launcher(rp2040->queue, pax_buffer, ili9341, &menu_action, &appfs_fd);
        if (menu_action == ACTION_APPFS) {
            appfs_boot_app(appfs_fd);
        } else if (menu_action == ACTION_FPGA) {
            graphics_task(pax_buffer, ili9341, NULL, "Loading...");
            fpga_test(ili9341, ice40, rp2040->queue);
        } else if (menu_action == ACTION_FPGA_DL) {
            fpga_download(ice40, pax_buffer, ili9341);
        } else if (menu_action == ACTION_RP2040_BL) {
            graphics_task(pax_buffer, ili9341, NULL, "RP2040 update...");
            rp2040_reboot_to_bootloader(rp2040);
            esp_restart();
        } else if (menu_action == ACTION_INSTALLER) {
            graphics_task(pax_buffer, ili9341, NULL, "Not implemented");
         } else if (menu_action == ACTION_WIFI_CONNECT) {
            graphics_task(pax_buffer, ili9341, NULL, "Connecting...");
            wifi_connect_to_stored();
        } else if (menu_action == ACTION_OTA) {
            graphics_task(pax_buffer, ili9341, NULL, "Connecting...");
            wifi_connect_to_stored();
            graphics_task(pax_buffer, ili9341, NULL, "Firmware update...");
            ota_update();
        } else if (menu_action == ACTION_FILE_BROWSER) {
            file_browser(rp2040->queue, pax_buffer, ili9341, "/sd");
        } else if (menu_action == ACTION_FILE_BROWSER_INT) {
            file_browser(rp2040->queue, pax_buffer, ili9341, "/internal");
        } else if (menu_action == ACTION_UNINSTALL) {
            uninstall_browser(rp2040->queue, pax_buffer, ili9341);
        } else if (menu_action == ACTION_SETTINGS) {
            while (true) {
                menu_wifi_settings(rp2040->queue, pax_buffer, ili9341, &menu_action);
                if (menu_action == ACTION_WIFI_MANUAL) {
                    nvs_handle_t handle;
                    nvs_open("system", NVS_READWRITE, &handle);
                    char ssid[33];
                    char password[33];
                    size_t requiredSize;
                    esp_err_t res = nvs_get_str(handle, "wifi.ssid", NULL, &requiredSize);
                    if (res != ESP_OK) {
                        strcpy(ssid, "");
                        strcpy(password, "");
                    } else if (requiredSize < sizeof(ssid)) {
                        res = nvs_get_str(handle, "wifi.ssid", ssid, &requiredSize);
                        if (res != ESP_OK) strcpy(ssid, "");
                        res = nvs_get_str(handle, "wifi.password", NULL, &requiredSize);
                        if (res != ESP_OK) {
                            strcpy(password, "");
                        } else if (requiredSize < sizeof(password)) {
                            res = nvs_get_str(handle, "wifi.password", password, &requiredSize);
                            if (res != ESP_OK) strcpy(password, "");
                        }
                    }
                    bool accepted = keyboard(rp2040->queue, pax_buffer, ili9341, 30, 30, pax_buffer->width - 60, pax_buffer->height - 60, "WiFi SSID", "Press HOME to exit", ssid, sizeof(ssid));
                    if (accepted) {
                        accepted = keyboard(rp2040->queue, pax_buffer, ili9341, 30, 30, pax_buffer->width - 60, pax_buffer->height - 60, "WiFi password", "Press HOME to exit", password, sizeof(password));
                    }
                    if (accepted) {
                        nvs_set_str(handle, "wifi.ssid", ssid);
                        nvs_set_str(handle, "wifi.password", password);
                        graphics_task(pax_buffer, ili9341, NULL, "WiFi settings stored");
                    } else {
                        graphics_task(pax_buffer, ili9341, NULL, "Canceled");
                    }
                    nvs_close(handle);
                } else if (menu_action == ACTION_WIFI_LIST) {
                    nvs_handle_t handle;
                    nvs_open("system", NVS_READWRITE, &handle);
                    char ssid[33];
                    char password[33];
                    size_t requiredSize;
                    esp_err_t res = nvs_get_str(handle, "wifi.ssid", NULL, &requiredSize);
                    if (res != ESP_OK) {
                        strcpy(ssid, "");
                    } else if (requiredSize < sizeof(ssid)) {
                        res = nvs_get_str(handle, "wifi.ssid", ssid, &requiredSize);
                        if (res != ESP_OK) strcpy(ssid, "");
                        res = nvs_get_str(handle, "wifi.password", NULL, &requiredSize);
                        if (res != ESP_OK) {
                            strcpy(password, "");
                        } else if (requiredSize < sizeof(password)) {
                            res = nvs_get_str(handle, "wifi.password", password, &requiredSize);
                            if (res != ESP_OK) strcpy(password, "");
                        }
                    }
                    nvs_close(handle);
                    char buffer[300];
                    snprintf(buffer, sizeof(buffer), "SSID is %s\nPassword is %s", ssid, password);
                    graphics_task(pax_buffer, ili9341, NULL, buffer);
                } else {
                    break;
                }
            }
        }
    }

    
    free(framebuffer);
}