// This module is used in integration tests as well
use std::{any::Any, collections::HashMap};

use async_trait::async_trait;
use num_bigint::BigUint;
use tycho_common::{
    dto::ProtocolStateDelta,
    models::{protocol::GetAmountOutParams, token::Token},
    simulation::{
        errors::{SimulationError, TransitionError},
        indicatively_priced::{IndicativelyPriced, SignedQuote},
        protocol_sim::{Balances, GetAmountOutResult, ProtocolSim},
    },
    Bytes,
};

#[derive(Debug, serde::Serialize, serde::Deserialize)]
pub struct MockRFQState {
    pub quote_amount_out: BigUint,
    pub quote_data: HashMap<String, Bytes>,
}
#[typetag::serde]
impl ProtocolSim for MockRFQState {
    fn fee(&self) -> f64 {
        panic!("MockRFQState does not implement fee")
    }

    fn spot_price(&self, _base: &Token, _quote: &Token) -> Result<f64, SimulationError> {
        panic!("MockRFQState does not implement fee")
    }

    fn get_amount_out(
        &self,
        _amount_in: BigUint,
        _token_in: &Token,
        _token_out: &Token,
    ) -> Result<GetAmountOutResult, SimulationError> {
        panic!("MockRFQState does not implement fee")
    }

    fn get_limits(
        &self,
        _sell_token: Bytes,
        _buy_token: Bytes,
    ) -> Result<(BigUint, BigUint), SimulationError> {
        panic!("MockRFQState does not implement fee")
    }

    fn delta_transition(
        &mut self,
        _delta: ProtocolStateDelta,
        _tokens: &HashMap<Bytes, Token>,
        _balances: &Balances,
    ) -> Result<(), TransitionError> {
        panic!("MockRFQState does not implement fee")
    }

    fn clone_box(&self) -> Box<dyn ProtocolSim> {
        panic!("MockRFQState does not implement fee")
    }

    fn as_any(&self) -> &dyn Any {
        panic!("MockRFQState does not implement fee")
    }

    fn as_any_mut(&mut self) -> &mut dyn Any {
        panic!("MockRFQState does not implement fee")
    }

    fn eq(&self, _other: &dyn ProtocolSim) -> bool {
        panic!("MockRFQState does not implement fee")
    }

    fn as_indicatively_priced(&self) -> Result<&dyn IndicativelyPriced, SimulationError> {
        Ok(self)
    }
}

#[async_trait]
impl IndicativelyPriced for MockRFQState {
    async fn request_signed_quote(
        &self,
        params: GetAmountOutParams,
    ) -> Result<SignedQuote, SimulationError> {
        Ok(SignedQuote {
            base_token: params.token_in,
            quote_token: params.token_out,
            amount_in: params.amount_in,
            amount_out: self.quote_amount_out.clone(),
            quote_attributes: self.quote_data.clone(),
        })
    }
}
