54 lines
2.0 KiB
Rust
54 lines
2.0 KiB
Rust
use std::{collections::HashMap, fs};
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use crate::encoding::{
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errors::EncodingError,
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evm::{constants::DEFAULT_EXECUTORS_JSON, swap_encoder::builder::SwapEncoderBuilder},
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models::Chain,
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swap_encoder::SwapEncoder,
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};
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/// Registry containing all supported `SwapEncoders`.
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#[derive(Clone)]
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pub struct SwapEncoderRegistry {
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/// A hashmap containing the protocol system as a key and the `SwapEncoder` as a value.
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encoders: HashMap<String, Box<dyn SwapEncoder>>,
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}
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impl SwapEncoderRegistry {
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/// Populates the registry with the `SwapEncoders` for the given blockchain by parsing the
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/// executors' addresses in the file at the given path.
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pub fn new(
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executors_file_path: Option<String>,
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blockchain: tycho_common::models::Chain,
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) -> Result<Self, EncodingError> {
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let chain = Chain::from(blockchain);
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let config_str = if let Some(ref path) = executors_file_path {
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fs::read_to_string(path).map_err(|e| {
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EncodingError::FatalError(format!(
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"Error reading executors file from {:?}: {}",
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executors_file_path, e
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))
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})?
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} else {
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DEFAULT_EXECUTORS_JSON.to_string()
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};
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let config: HashMap<String, HashMap<String, String>> = serde_json::from_str(&config_str)?;
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let mut encoders = HashMap::new();
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let executors = config
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.get(&chain.name)
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.ok_or(EncodingError::FatalError("No executors found for chain".to_string()))?;
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for (protocol, executor_address) in executors {
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let builder = SwapEncoderBuilder::new(protocol, executor_address);
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let encoder = builder.build()?;
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encoders.insert(protocol.to_string(), encoder);
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}
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Ok(Self { encoders })
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}
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#[allow(clippy::borrowed_box)]
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pub fn get_encoder(&self, protocol_system: &str) -> Option<&Box<dyn SwapEncoder>> {
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self.encoders.get(protocol_system)
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}
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}
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