1  use actix::prelude::*;
 2  use tracing::{info, error};
 3  
 4  use crate::config::Config;
 5  use crate::error::StorageError;
 6  use super::{AddToMempool, GetFromMempool, GetMempoolTxids, GetMempoolInfo, MempoolInfo};
 7  
 8  pub struct MempoolActor {
 9      _storage_actor: Addr<super::storage::StorageActor>,
10  }
11  
12  impl MempoolActor {
13      pub fn new(config: &Config, storage_actor: Addr<super::storage::StorageActor>) -> Self {
14          info!("Mempool actor initialized");
15          Self {
16              _storage_actor: storage_actor,
17          }
18      }
19  }
20  
21  impl Actor for MempoolActor {
22      type Context = Context<Self>;
23  
24      fn started(&mut self, _ctx: &mut Self::Context) {
25          info!("Mempool actor started");
26      }
27  
28      fn stopped(&mut self, _ctx: &mut Self::Context) {
29          info!("Mempool actor stopped");
30      }
31  }
32  
33  impl Handler<AddToMempool> for MempoolActor {
34      type Result = Result<(), StorageError>;
35  
36      fn handle(&mut self, msg: AddToMempool, _ctx: &mut Self::Context) -> Self::Result {
37          info!("Adding transaction to mempool: {} (fee: {}, fee_rate: {})",
38                 msg.tx.txid(), msg.fee, msg.fee_rate);
39          // TODO: Validate transaction and add to mempool
40          Ok(())
41      }
42  }
43  
44  impl Handler<GetFromMempool> for MempoolActor {
45      type Result = Result<Option<bitcoin::Transaction>, StorageError>;
46  
47      fn handle(&mut self, msg: GetFromMempool, _ctx: &mut Self::Context) -> Self::Result {
48          info!("Getting transaction from mempool: {}", msg.txid);
49          // TODO: Get actual transaction from mempool
50          Ok(None)
51      }
52  }
53  
54  impl Handler<GetMempoolTxids> for MempoolActor {
55      type Result = Result<Vec<bitcoin::Txid>, StorageError>;
56  
57      fn handle(&mut self, _msg: GetMempoolTxids, _ctx: &mut Self::Context) -> Self::Result {
58          // TODO: Return actual mempool transaction IDs
59          Ok(vec![])
60      }
61  }
62  
63  impl Handler<GetMempoolInfo> for MempoolActor {
64      type Result = Result<MempoolInfo, StorageError>;
65  
66      fn handle(&mut self, _msg: GetMempoolInfo, _ctx: &mut Self::Context) -> Self::Result {
67          // TODO: Return actual mempool information
68          Ok(MempoolInfo {
69              size: 0,
70              bytes: 0,
71              usage: 0,
72              max_mempool: 300_000_000,
73              mempool_min_fee: 0.00001000,
74              min_relay_tx_fee: 0.00001000,
75          })
76      }
77  }