Tactiliest/Tactility/Source/app/crashdiagnostics/CrashDiagnostics.cpp

#ifdef ESP_PLATFORM

#include <esp_private/panic_internal.h>
#include "lvgl.h"
#include "lvgl/Statusbar.h"
#include "service/loader/Loader.h"
#include "qrcode.h"
#include "QrHelpers.h"
#include "QrUrl.h"

#define TAG "crash_diagnostics"

namespace tt::app::crashdiagnostics {

void onContinuePressed(TT_UNUSED lv_event_t* event) {
    tt::service::loader::stopApp();
    tt::service::loader::startApp("Desktop");
}

static void onShow(TT_UNUSED AppContext& app, lv_obj_t* parent) {
    auto* display = lv_obj_get_display(parent);
    int32_t parent_height = lv_display_get_vertical_resolution(display) - STATUSBAR_HEIGHT;

    lv_obj_add_event_cb(parent, onContinuePressed, LV_EVENT_SHORT_CLICKED, nullptr);
    auto* top_label = lv_label_create(parent);
    lv_label_set_text(top_label, "Oops! We've crashed ..."); // TODO: Funny messages
    lv_obj_align(top_label, LV_ALIGN_TOP_MID, 0, 2);

    auto* bottom_label = lv_label_create(parent);
    lv_label_set_text(bottom_label, "Tap screen to continue");
    lv_obj_align(bottom_label, LV_ALIGN_BOTTOM_MID, 0, -2);

    std::string url = getUrlFromCrashData();
    TT_LOG_I(TAG, "%s", url.c_str());
    size_t url_length = url.length();

    int qr_version;
    if (!getQrVersionForBinaryDataLength(url_length, qr_version)) {
        TT_LOG_E(TAG, "QR is too large");
        service::loader::stopApp();
        return;
    }

    TT_LOG_I(TAG, "QR version %d (length: %d)", qr_version, url_length);
    auto qrcodeData = std::make_shared<uint8_t[]>(qrcode_getBufferSize(qr_version));
    if (qrcodeData == nullptr) {
        TT_LOG_E(TAG, "Failed to allocate QR buffer");
        service::loader::stopApp();
        return;
    }

    QRCode qrcode;
    TT_LOG_I(TAG, "QR init text");
    if (qrcode_initText(&qrcode, qrcodeData.get(), qr_version, ECC_LOW, url.c_str()) != 0) {
        TT_LOG_E(TAG, "QR init text  failed");
        service::loader::stopApp();
        return;
    }

    TT_LOG_I(TAG, "QR size: %d", qrcode.size);

    // Calculate QR dot size
    int32_t top_label_height = lv_obj_get_height(top_label) + 2;
    int32_t bottom_label_height = lv_obj_get_height(bottom_label) + 2;
    TT_LOG_I(TAG, "Create canvas");
    int32_t available_height = parent_height - top_label_height - bottom_label_height;
    int32_t available_width = lv_display_get_horizontal_resolution(display);
    int32_t smallest_size = TT_MIN(available_height, available_width);
    int32_t pixel_size;
    if (qrcode.size * 2 <= smallest_size) {
        pixel_size = 2;
    } else if (qrcode.size <= smallest_size) {
        pixel_size = 1;
    } else {
        TT_LOG_E(TAG, "QR code won't fit screen");
        service::loader::stopApp();
        return;
    }

    auto* canvas = lv_canvas_create(parent);
    lv_obj_set_size(canvas, pixel_size * qrcode.size, pixel_size * qrcode.size);
    lv_obj_align(canvas, LV_ALIGN_CENTER, 0, 0);
    lv_canvas_fill_bg(canvas, lv_color_black(), LV_OPA_COVER);
    lv_obj_set_content_height(canvas, qrcode.size * pixel_size);
    lv_obj_set_content_width(canvas, qrcode.size * pixel_size);

    TT_LOG_I(TAG, "Create draw buffer");
    auto* draw_buf = lv_draw_buf_create(pixel_size * qrcode.size, pixel_size * qrcode.size, LV_COLOR_FORMAT_RGB565, LV_STRIDE_AUTO);
    if (draw_buf == nullptr) {
        TT_LOG_E(TAG, "Draw buffer alloc");
        service::loader::stopApp();
        return;
    }

    lv_canvas_set_draw_buf(canvas, draw_buf);

    for (uint8_t y = 0; y < qrcode.size; y++) {
        for (uint8_t x = 0; x < qrcode.size; x++) {
            bool colored = qrcode_getModule(&qrcode, x, y);
            auto color = colored ? lv_color_white() : lv_color_black();
            int32_t pos_x = x * pixel_size;
            int32_t pos_y = y * pixel_size;
            for (int px = 0; px < pixel_size; px++) {
                for (int py = 0; py < pixel_size; py++) {
                    lv_canvas_set_px(canvas, pos_x + px, pos_y + py, color, LV_OPA_COVER);
                }
            }
        }
    }
}

extern const AppManifest manifest = {
    .id = "CrashDiagnostics",
    .name = "Crash Diagnostics",
    .type = TypeHidden,
    .onShow = onShow
};

} // namespace

#endif