import os
import sys
import shutil
import struct


def update_file(path, list_value):
    content = bytes()
    for value in list_value:
        content = content + value
    if os.path.exists(path):
        file    = open(path, mode='rb')
        content = content + file.read()
        file.close()

        file = open(os.path.dirname(path) + '/pack.app', mode='wb')
        file.write(content)
        file.close()
    else:
        print('Error: ' + path + ' is not exists.')

def main():
    root = os.path.dirname(os.path.realpath(__file__)) + '/../../..'
    path = root + '/PLAT/appsdk/gccout/speaker/speaker.bin'

    appAddress = 0x00B81000
    headLength = 80

    name      = b'app0' + bytes(4)
    size      = struct.pack('I', os.path.getsize(path))
    reserved0 = bytes(4)
    reserved1 = bytes(16)

    textOffset     = struct.pack('I', headLength)
    textSize       = struct.pack('I', os.path.getsize(path))
    textRelocation = struct.pack('I', appAddress + headLength)

    dataOffset     = bytes(4)
    dataSize       = bytes(4)
    dataRelocation = bytes(4)

    resourceOffset     = bytes(4)
    resourceSize       = bytes(4)
    resourceRelocation = bytes(4)

    reserved3 = bytes(12)

    list_value = [name, size, reserved0, reserved1, textOffset, textSize, textRelocation, dataOffset, dataSize, dataRelocation, resourceOffset, resourceSize, resourceRelocation, reserved3]

    update_file(path, list_value)

if __name__ == '__main__':
    file_name = os.path.basename(__file__)
    print(file_name, 'begin')
    main()
    print(file_name, 'end')