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use super::BigUintUncallable;
use crate::abi::TypeAbi;
use crate::api::EllipticCurveApi;
use crate::dharitri_codec::*;
use crate::types::BoxedBytes;
use alloc::string::String;

/// Dummy type that implements `EllipticCurveApi`.
/// Currently used to simplify generating ABIs, since we are not interested in values there.
/// Being completely content-less it can exist in `dharitri-wasm` in a no-std environment.

type EllipticCurveComponents<BigUint> = (BigUint, BigUint, BigUint, BigUint, BigUint, u32);
pub struct EllipticCurveUncallable;

impl TypeAbi for EllipticCurveUncallable {
    fn type_name() -> String {
        String::from("EllipticCurve")
    }
}

impl NestedEncode for EllipticCurveUncallable {
    fn dep_encode<O: NestedEncodeOutput>(&self, _dest: &mut O) -> Result<(), EncodeError> {
        unreachable!()
    }

    fn dep_encode_or_exit<O: NestedEncodeOutput, ExitCtx: Clone>(
        &self,
        _dest: &mut O,
        _c: ExitCtx,
        _exit: fn(ExitCtx, EncodeError) -> !,
    ) {
        unreachable!()
    }
}

impl TopEncode for EllipticCurveUncallable {
    fn top_encode<O: TopEncodeOutput>(&self, _output: O) -> Result<(), EncodeError> {
        unreachable!()
    }

    fn top_encode_or_exit<O: TopEncodeOutput, ExitCtx: Clone>(
        &self,
        _output: O,
        _c: ExitCtx,
        _exit: fn(ExitCtx, EncodeError) -> !,
    ) {
        unreachable!()
    }
}

impl EllipticCurveApi for EllipticCurveUncallable {
    type BigUint = BigUintUncallable;

    fn get_values(&self) -> EllipticCurveComponents<Self::BigUint> {
        unreachable!()
    }

    fn create_ec(_curve: &str) -> Self {
        unreachable!()
    }

    fn get_ec_length(&self) -> u32 {
        unreachable!()
    }

    fn get_priv_key_byte_length(&self) -> u32 {
        unreachable!()
    }

    fn add_ec(
        &self,
        _x_first_point: Self::BigUint,
        _y_first_point: Self::BigUint,
        _x_second_point: Self::BigUint,
        _y_second_point: Self::BigUint,
    ) -> (Self::BigUint, Self::BigUint) {
        unreachable!()
    }

    fn double_ec(
        &self,
        _x_point: Self::BigUint,
        _y_point: Self::BigUint,
    ) -> (Self::BigUint, Self::BigUint) {
        unreachable!()
    }

    fn is_on_curve_ec(&self, _x_point: Self::BigUint, _y_point: Self::BigUint) -> bool {
        unreachable!()
    }

    fn scalar_mult(
        &self,
        _x_point: Self::BigUint,
        _y_point: Self::BigUint,
        _data: BoxedBytes,
    ) -> (Self::BigUint, Self::BigUint) {
        unreachable!()
    }

    fn scalar_base_mult(&self, _data: BoxedBytes) -> (Self::BigUint, Self::BigUint) {
        unreachable!()
    }

    fn marshal_ec(&self, _x_pair: Self::BigUint, _y_pair: Self::BigUint) -> BoxedBytes {
        unreachable!()
    }

    fn marshal_compressed_ec(&self, _x_pair: Self::BigUint, _y_pair: Self::BigUint) -> BoxedBytes {
        unreachable!()
    }

    fn unmarshal_ec(&self, _data: BoxedBytes) -> (Self::BigUint, Self::BigUint) {
        unreachable!()
    }

    fn unmarshal_compressed_ec(&self, _data: BoxedBytes) -> (Self::BigUint, Self::BigUint) {
        unreachable!()
    }

    fn generate_key_ec(&self) -> (Self::BigUint, Self::BigUint, BoxedBytes) {
        unreachable!()
    }

    fn from_bitsize_ec(_bitsize: u32) -> Option<Self> {
        unreachable!()
    }
}