import gdb
from pwnlib.util.cyclic import cyclic

import pwndbg.gdblib.config
import pwndbg.gdblib.memory
import pwndbg.gdblib.regs
import pwndbg.vmmap
import tests

BINARY = tests.binaries.get("reference-binary.out")


def run_tests(stack, use_big_endian, expected):
    pwndbg.gdblib.config.hexdump_group_use_big_endian = use_big_endian

    # Put some data onto the stack
    pwndbg.gdblib.memory.write(stack, cyclic(0x100))

    # Test empty hexdump
    result = gdb.execute("hexdump 0", to_string=True)
    assert result == "+0000 0x000000  \n"

    results = []
    # TODO: Repetition is not working in tests
    results.append(gdb.execute(f"hexdump {stack} 64", to_string=True))
    results.append(gdb.execute(f"hexdump {stack} 3", to_string=True))

    assert len(results) == len(expected)
    for i, result in enumerate(results):
        expected_result = expected[i]
        assert result == expected_result


def test_hexdump(start_binary):
    start_binary(BINARY)
    pwndbg.gdblib.config.hexdump_group_width = -1

    # TODO: Setting theme options with Python isn't working
    gdb.execute("set hexdump-byte-separator")
    stack_addr = pwndbg.gdblib.regs.rsp - 0x100

    expected = [
        f"""+0000 0x{stack_addr:x}  6161616261616161 6161616461616163 │aaaabaaa│caaadaaa│
+0010 0x{stack_addr+0x10:x}  6161616661616165 6161616861616167 │eaaafaaa│gaaahaaa│
+0020 0x{stack_addr+0x20:x}  6161616a61616169 6161616c6161616b │iaaajaaa│kaaalaaa│
+0030 0x{stack_addr+0x30:x}  6161616e6161616d 616161706161616f │maaanaaa│oaaapaaa│\n""",
        f"""+0000 0x{stack_addr:x}            616161                  │aaa     │        │\n""",
    ]
    run_tests(stack_addr, True, expected)

    expected = [
        f"""+0000 0x{stack_addr:x}  6161616162616161 6361616164616161 │aaaabaaa│caaadaaa│
+0010 0x{stack_addr+0x10:x}  6561616166616161 6761616168616161 │eaaafaaa│gaaahaaa│
+0020 0x{stack_addr+0x20:x}  696161616a616161 6b6161616c616161 │iaaajaaa│kaaalaaa│
+0030 0x{stack_addr+0x30:x}  6d6161616e616161 6f61616170616161 │maaanaaa│oaaapaaa│\n""",
        f"""+0000 0x{stack_addr:x}  616161                            │aaa     │        │\n""",
    ]
    run_tests(stack_addr, False, expected)