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use multiversx_sc_scenario::scenario_model::{ScCallStep, ScDeployStep};

use crate::TransactionSpec;

#[derive(Default)]
pub struct StepBuffer<'a> {
    pub refs: Vec<&'a mut dyn TransactionSpec>,
}

impl<'a> StepBuffer<'a> {
    pub fn new() -> Self {
        Self::default()
    }

    pub fn add_sc_call<'b, S>(&'a mut self, step: &'b mut S)
    where
        'b: 'a,
        S: AsMut<ScCallStep>,
    {
        self.refs.push(step.as_mut());
    }

    pub fn add_sc_call_vec<'b, S>(&'a mut self, steps: &'b mut Vec<S>)
    where
        'b: 'a,
        S: AsMut<ScCallStep>,
    {
        for step in steps {
            self.refs.push(step.as_mut());
        }
    }

    pub fn from_sc_call_vec<'b, S>(steps: &'b mut Vec<S>) -> Self
    where
        'b: 'a,
        S: AsMut<ScCallStep>,
    {
        let mut buffer = Self::default();
        for step in steps {
            buffer.refs.push(step.as_mut());
        }
        buffer
    }

    pub fn from_sc_deploy_vec<'b, S>(steps: &'b mut Vec<S>) -> Self
    where
        'b: 'a,
        S: AsMut<ScDeployStep>,
    {
        let mut buffer = Self::default();
        for step in steps {
            buffer.refs.push(step.as_mut());
        }
        buffer
    }

    pub fn to_refs_vec(&'a self) -> Vec<&'a dyn TransactionSpec> {
        self.refs.iter().map(|r| &**r).collect()
    }
}