import mmap
import struct
from pathlib import Path
import json

def read_until_null(indx: int, data: tuple) -> int:
    end = indx
    while end + 1 < len(data):
        ## Read 2 bytes at a time until null found
        if data[end:end+2] == b"\x00\x00":
            break
        end += 2
    return end

# 8 bytes at a time
cd_db = {}
def get_props():
    test = 0
    for r in range(0,len(offsets_data),8):
        test += 1
        # offsets_data[4:8].hex()
        card_index_name_data =  int.from_bytes( offsets_data[r:r+4], byteorder='little' )
        if card_index_name_data == 0:
            continue
        #card_index_desc_data =  int.from_bytes( offsets_data[r+4:r+8], byteorder='little' )
        #card_id = card_id[::-1]
        #read until null found
        # end = card_index_name_data
        # while end + 1 < len(name_data):
        #     ## Read 2 bytes at a time until null found
        #     if name_data[end:end+2] == b"\x00\x00":
        #         break
        #     end += 2
        # name = name_data[card_index_name_data:end].decode("utf-16le", errors="replace")
        end_index = read_until_null(card_index_name_data, name_data)
        name = name_data[card_index_name_data:end_index].decode("utf-16le", errors="replace")
        print(name)
        if name == '':
            continue
        #print(card_id.hex(' '))
        # 2. Get last 14 bits using mask 0x3FFF (binary 11 1111 1111 1111)
        #print([bin(x) for x in card_first])
        # if test > 3:
        #     break;
        #print(prop_data[r:r+8])
        if cd_db.get(test) is None:
            cd_db[test] = {}
        # {
        #     f"name_{language_code}":name, 
        #     f"desc_{language_code}": 'foo', 
        #     f"name_addr_{language_code}": hex(card_index_name_data), 
        #     f"desc_addr_{language_code}": hex(card_index_desc_data)
        # }
        cd_db[test][f"name_{language_code}"] = name 
        #cd_db[card_id][f"desc_{language_code}"] = desc 
        cd_db[test][f"name_addr_{language_code}"] = hex(card_index_name_data)
        #cd_db[card_id][f"desc_addr_{language_code}"] = hex(card_index_desc_data)

language_code = 'E'
offsets_data = Path(f"YGO_2020/bin/DLG_Indx_{language_code}.bin").read_bytes() # Get all the bytes
name_data = Path(f"YGO_2020/bin/DLG_Text_{language_code}.bin").read_bytes() # Get all the bytes
get_props()

language_code = 'J'
offsets_data = Path(f"YGO_2020/bin/DLG_Indx_{language_code}.bin").read_bytes() # Get all the bytes
name_data = Path(f"YGO_2020/bin/DLG_Text_{language_code}.bin").read_bytes() # Get all the bytes
get_props()

# with open("dump2.json", "w", encoding="utf-16") as outfile:
#     json.dump(cd_db, outfile, ensure_ascii=False, indent=2)

print()