# -*- coding: UTF-8 -*-
"""
@Project ：Matrix_Check 
@File    ：SignalInitTableCheck.py
@Author  ：haojiang
@Date    ：2022/9/28 18:15 
"""

import csv
import os
from enum import Enum
import logging


class TableColumnHeaderType(Enum):
    Signal = 0
    Type = 1
    Bit = 2
    App = 3
    AppValue = 4
    Raw = 5
    RawValue = 6
    Controller = 7
    Frame = 8
    PDU = 9



class SignalInitValueTableCheck:

    Column_Need_Check = [TableColumnHeaderType.Signal,
                         TableColumnHeaderType.Type,
                         TableColumnHeaderType.Bit,
                         TableColumnHeaderType.RawValue]

    # is signed
    Type_Mapping = {
        'Boolean': False,
        'UInt': False,
        'SInt': True,
        'Composite': None,
        'Bytes': None
        }

    def __init__(self, project_path: str):
        self.project = project_path


    def _is_raw_value_missing(self, raw_value: str, signal_type: str) -> bool:
        if raw_value == '' and signal_type != 'Composite':
            return True
        else:
            return False

    def _format_raw_value(self, raw_value: str):
        ret_value = raw_value.replace('(', '').replace(')', '').upper()
        if ret_value in ['TRUE', 'FALSE']:
            ret_value = bool(ret_value)
        else:
            ret_value = self._format_str_to_number(ret_value)

        return ret_value


    def _format_str_to_number(self, str_num) -> int:
        try:
            ret = int(str_num)
            return ret
        except ValueError as e:
            # logging.error(f'Transform str {str_num} to number failed!')
            pass



    def check_row(self, row: dict) -> bool:

        ret = False

        # raw missing validation
        raw_value = row[TableColumnHeaderType.RawValue.name]
        # logging.error('raw_value' + raw_value)

        # type validation, between[Boolean Composite SInt UInt Bytes]
        signal_value_type = row[TableColumnHeaderType.Type.name]\

        is_raw_missing = self._is_raw_value_missing(raw_value, signal_value_type)

        if is_raw_missing:
            logging.error(f'Signal Raw value missing!{row.values()}')
        else:
            raw_number = self._format_raw_value(raw_value)



            if signal_value_type in SignalInitValueTableCheck.Type_Mapping.keys():
                if SignalInitValueTableCheck.Type_Mapping[signal_value_type] == None:
                    ret = True
                else:
                    signal_bit_len_str = row[TableColumnHeaderType.Bit.name]
                    signal_bit_len = self._format_str_to_number(signal_bit_len_str)

                    range_min, range_max = self._get_range_by_bit_length(signal_bit_len)

                    if raw_number >= range_min and raw_number <= range_max:
                        ret = True
                    else:
                        logging.error(f'Signal Raw value out of range!{row.values()}')
            else:
                logging.error(f'Unkonw Signal Type!{row.values()}')


        return ret





    def get_signal_init_value_table(self) -> list:
        rx_file, tx_file = self.get_rx_tx_csv_file_name()
        rx_file = os.path.join(self.project, rx_file)
        tx_file = os.path.join(self.project, tx_file)
        if not os.path.isfile(rx_file) \
                or not os.path.isfile(tx_file):
            logging.error(f'rx_csv {rx_file}, tx_csv {tx_file}')
            logging.error('Can not find rx or tx init value csv file!')
            return []
        else:
            rx_data = self.get_csv_data(rx_file)
            tx_data = self.get_csv_data(tx_file)
            rx_data.extend(tx_data)
            return rx_data




    def get_rx_tx_csv_file_name(self) -> tuple:
        files = os.listdir(self.project)
        rx_csv = ''
        tx_csv = ''
        for file in files:
            file_name_upper = file.upper()
            if 'RX' in file_name_upper and 'ARXML' not in file_name_upper:
                rx_csv = file

            if 'TX' in file_name_upper:
                tx_csv = file

        return (rx_csv, tx_csv)


    def get_csv_data(self, file_name: str) -> list:
        with open(file_name, 'r') as csvfile:
            spamreader = csv.reader(csvfile, delimiter=',')
            is_header_readed = False
            table_data = list()
            for row in spamreader:
                if not is_header_readed:
                    is_header_readed = True
                    continue
                row_data = dict()
                for col in SignalInitValueTableCheck.Column_Need_Check:
                    row_data[col.name] = row[col.value]
                table_data.append(row_data)

        return table_data

    def _get_range_by_bit_length(self, bit_len: int, is_signed: bool = False):
        # [0, 2^n-1] 2^n = 1<<n
        # [-2^{n-1}, 2^{n-1}-1]
        if is_signed:
            return (-(1<<(bit_len-1)), (1<<(bit_len-1))-1)
        else:
            return (0, (1<<bit_len)-1)
        

if __name__ == '__main__':
    matrix_path = r'E:\Project\ZP22HEV\V3.1\ZP22_HEV_V3.1a\Mat\20220606_gx2_ZP22 HEV_SecOC-GW-V01.3'

    sc = SignalInitValueTableCheck(matrix_path)


    data = sc.get_signal_init_value_table()

    for row in data:
        sc.check_row(row)