#!/usr/bin/env python
from typing import cast

import click

from pyecsca.ec.context import local, DefaultContext
from pyecsca.ec.formula import AdditionFormula, DoublingFormula
from pyecsca.ec.mod.flint import has_flint
from pyecsca.ec.mod.gmp import has_gmp
from pyecsca.ec.mult import LTRMultiplier
from pyecsca.ec.params import get_params
from pyecsca.misc.cfg import TemporaryConfig
from test.utils import Profiler


@click.command()
@click.option("-p", "--profiler", type=click.Choice(("py", "c", "raw")), default="py")
@click.option(
    "-m",
    "--mod",
    type=click.Choice(("python", "gmp", "flint")),
    default="flint" if has_flint else "gmp" if has_gmp else "python",
)
@click.option("-o", "--operations", type=click.INT, default=50)
@click.option(
    "-d",
    "--directory",
    type=click.Path(file_okay=False, dir_okay=True),
    default=None,
    envvar="DIR",
)
def main(profiler, mod, operations, directory):
    with TemporaryConfig() as cfg:
        cfg.ec.mod_implementation = mod
        p256 = get_params("secg", "secp256r1", "projective")
        coords = p256.curve.coordinate_model
        add = cast(AdditionFormula, coords.formulas["add-2015-rcb"])
        dbl = cast(DoublingFormula, coords.formulas["dbl-2015-rcb"])
        mult = LTRMultiplier(add, dbl)
        click.echo(
            f"Profiling {operations} {p256.curve.prime.bit_length()}-bit scalar multiplication executions..."
        )
        one_point = p256.generator
        with Profiler(profiler, directory, f"mult_ltr_rcb_p256_{operations}_{mod}", operations):
            for _ in range(operations):
                mult.init(p256, one_point)
                one_point = mult.multiply(
                    0x71A55E0C1ABB3A0E069419E0F837BC195F1B9545E69FC51E53C4D48D7FEA3B1A
                )
        click.echo(
            f"Profiling {operations} {p256.curve.prime.bit_length()}-bit scalar multiplication executions (with tracing)..."
        )
        with local(DefaultContext()):
            one_point = p256.generator
            with Profiler(profiler, directory, f"mult_ltr_rcb_p256_wtrace_{operations}_{mod}", operations):
                for _ in range(operations):
                    mult.init(p256, one_point)
                    one_point = mult.multiply(
                        0x71A55E0C1ABB3A0E069419E0F837BC195F1B9545E69FC51E53C4D48D7FEA3B1A
                    )


if __name__ == "__main__":
    main()