import re

from modgen.parserbase.parser import FileParser
from modgen.utility.sql_writer import SqlWriter


class ObjectDefinitionParser(FileParser):

    def __init__(self, file_list: list):
        super().__init__(file_list)

    def _handle_file_parsing(self, file_name: str, *args, **kwargs):
        file = open(file_name, "r", encoding="utf-8")
        for line in file.readlines():
            match = re.search(r'([\w]*)[\s]*=[\s]*(0[xX][0-9a-fA-F]+)', line)
            if match:
                self.mib_table.update({match.group(2): [match.group(1)]})

    def _handle_file_parsing_moving_window(self, file_name: str, current_line: int, moving_window_size: int,
                                           moving_window: list, *args, **kwargs):
        pass

    def _post_parsing_operation(self):
        pass


def export_object_file(filename, object_list, file_separator: str = ","):
    file = open(filename, "w")
    for entry in object_list:
        file.write(str(entry[0]) + file_separator + entry[1][0] + '\n')
    file.close()


def write_translation_file(filename: str, list_of_entries, date_string_full: str):
    outputfile = open(filename, "w")
    print('ObjectParser: Writing translation file ' + filename)
    definitions = ""
    function = "const char* translateObject(object_id_t object) {\n\tswitch( (object & 0xFFFFFFFF) ) {\n"
    for entry in list_of_entries:
        # first part of translate file
        definitions += f"const char *{entry[1][0]}_STRING = \"{entry[1][0]}\";\n"
        # second part of translate file. entry[i] contains 32 bit hexadecimal numbers
        function += f"\tcase {entry[0]}:\n\t\treturn {entry[1][0]}_STRING;\n"
    function += '\tdefault:\n\t\treturn "UNKNOWN_OBJECT";\n'
    outputfile.write(f"/**\n * @brief\tAuto-generated object translation file.\n"
                     f" * @details\n"
                     f" * Contains {len(list_of_entries)} translations.\n"
                     f" * Generated on: {date_string_full}\n */\n")
    outputfile.write("#include \"translateObjects.h\"\n\n")
    outputfile.write(definitions + "\n" + function + "\t}\n\treturn 0;\n}\n")
    outputfile.close()


def write_translation_header_file(filename: str = "translateObjects.h"):
    file = open(filename, "w")
    file.write(
        f"#ifndef FSFWCONFIG_OBJECTS_TRANSLATEOBJECTS_H_\n"
        f"#define FSFWCONFIG_OBJECTS_TRANSLATEOBJECTS_H_\n\n"
        f"#include <fsfw/objectmanager/SystemObjectIF.h>\n\n"
        f"const char* translateObject(object_id_t object);\n\n"
        f"#endif /* FSFWCONFIG_OBJECTS_TRANSLATEOBJECTS_H_ */\n"
    )


def sql_object_exporter(
        object_table: list, db_filename: str, delete_cmd: str, create_cmd: str, insert_cmd: str
):
    sql_writer = SqlWriter(db_filename=db_filename)
    sql_writer.delete(delete_cmd)
    sql_writer.open(create_cmd)
    for entry in object_table:
        sql_writer.write_entries(
            insert_cmd, (entry[0], entry[1][0])
        )
    sql_writer.commit()
    sql_writer.close()