import cxxheaderparser.simple

header_text = open("Core/Inc/packet.hpp","r").read().replace("__inline__", "")

data = cxxheaderparser.simple.parse_string(header_text)

work_string = ""

for class_type in data.namespace.classes:
    class_name = class_type.class_decl.typename.segments[0].name
    to_format_string = "%s %d %d"
    format_args = f'"{class_name}", typecode<{class_name}>(), sizeof({class_name})'
    for field in class_type.fields:        
        if isinstance(field.type, cxxheaderparser.types.Array):
            element_type = field.type.array_of.typename.segments[0].name
            element_num = field.type.size.tokens[0].value
            element_name = field.name
            to_format_string += " %s %d %d"
            format_args += f', "{element_type} {element_name}[{element_num}]", offsetof({class_name}, {element_name}), sizeof({element_type})'
        elif isinstance(field.type, cxxheaderparser.types.Type):
            element_type = field.type.typename.segments[0].name
            element_name = field.name
            to_format_string += " %s %d %d"
            format_args += f', "{element_type} {element_name}", offsetof({class_name}, {element_name}), sizeof({element_type})'
    to_format_string += "\\n\\r"
    work_string += f'    cx = snprintf(buff, sizeof(buff), "{to_format_string}", {format_args});\n'
    work_string += f'    CDC_Transmit_FS((uint8_t*)buff, cx);\n'
    work_string += f'    HAL_Delay(10);\n\n'

h_file_text = """
void data_description();
"""

c_file_text = ("""#include "datadescriptor.hpp"
#include <cstddef>
#include <cstdio>
#include "usbd_cdc_if.h"
#include "packet.hpp"

void data_description() {
    char buff[200];
    int cx;

""" + work_string + 
"}\n")

with open("Core/Src/datadescriptor.cpp", "w") as f:
    f.write(c_file_text)

with open("Core/Inc/datadescriptor.hpp", "w") as f:
    f.write(h_file_text)