mid coding commit

core/container/src/bitcoin_simulator.rs

@@ -0,0 +1,234 @@
+use anyhow::{Context, Result};
+use serde_json::{json, Value};
+use std::sync::Arc;
+use tokio::sync::RwLock;
+
+#[derive(Debug, Clone)]
+pub enum BitcoinSimulationMode {
+    Mock,
+    Testnet,
+    Mainnet,
+    None,
+}
+
+pub struct BitcoinSimulator {
+    mode: BitcoinSimulationMode,
+    rpc_url: Option<String>,
+    mock_blockchain_info: Arc<RwLock<Value>>,
+}
+
+impl BitcoinSimulator {
+    pub fn new(mode: BitcoinSimulationMode) -> Self {
+        let mock_blockchain_info = json!({
+            "chain": "main",
+            "blocks": 800000,
+            "headers": 800000,
+            "bestblockhash": "0000000000000000000123456789abcdef0123456789abcdef0123456789abcdef",
+            "difficulty": 50000000000.0,
+            "mediantime": 1700000000,
+            "verificationprogress": 1.0,
+            "initialblockdownload": false,
+            "chainwork": "0000000000000000000000000000000000000000000000000000000000000000",
+            "size_on_disk": 500000000000i64,
+            "pruned": false,
+            "softforks": {},
+            "warnings": ""
+        });
+
+        let rpc_url = match mode {
+            BitcoinSimulationMode::Mock => None,
+            BitcoinSimulationMode::Testnet => Some("http://localhost:18332".to_string()),
+            BitcoinSimulationMode::Mainnet => Some("http://localhost:8332".to_string()),
+            BitcoinSimulationMode::None => None,
+        };
+
+        Self {
+            mode,
+            rpc_url,
+            mock_blockchain_info: Arc::new(RwLock::new(mock_blockchain_info)),
+        }
+    }
+
+    pub fn is_bitcoin_available(&self) -> bool {
+        match self.mode {
+            BitcoinSimulationMode::Mock => true,
+            BitcoinSimulationMode::Testnet | BitcoinSimulationMode::Mainnet => {
+                // In real mode, we'd check if the container is running
+                // For now, assume it's available if we have an RPC URL
+                self.rpc_url.is_some()
+            }
+            BitcoinSimulationMode::None => false,
+        }
+    }
+
+    pub fn get_bitcoin_rpc_url(&self) -> Option<String> {
+        self.rpc_url.clone()
+    }
+
+    pub async fn simulate_rpc_call(&self, method: &str, params: &[Value]) -> Result<Value> {
+        match self.mode {
+            BitcoinSimulationMode::Mock => {
+                self.mock_rpc_call(method, params).await
+            }
+            BitcoinSimulationMode::Testnet | BitcoinSimulationMode::Mainnet => {
+                // Make actual RPC call to Bitcoin node
+                self.real_rpc_call(method, params).await
+            }
+            BitcoinSimulationMode::None => {
+                Err(anyhow::anyhow!("Bitcoin simulation is disabled"))
+            }
+        }
+    }
+
+    async fn mock_rpc_call(&self, method: &str, _params: &[Value]) -> Result<Value> {
+        match method {
+            "getblockchaininfo" => {
+                let info = self.mock_blockchain_info.read().await;
+                Ok(info.clone())
+            }
+            "getnetworkinfo" => {
+                Ok(json!({
+                    "version": 260000,
+                    "subversion": "/Bitcoin Core:26.0.0/",
+                    "protocolversion": 70016,
+                    "localservices": "000000000000040d",
+                    "localservicesnames": ["NETWORK", "WITNESS", "NETWORK_LIMITED"],
+                    "connections": 8,
+                    "connections_in": 4,
+                    "connections_out": 4,
+                    "networkactive": true,
+                    "networks": [],
+                    "relayfee": 0.00001000,
+                    "incrementalfee": 0.00001000,
+                    "localaddresses": [],
+                    "warnings": ""
+                }))
+            }
+            "getwalletinfo" => {
+                Ok(json!({
+                    "walletname": "wallet.dat",
+                    "walletversion": 169900,
+                    "balance": 0.0,
+                    "unconfirmed_balance": 0.0,
+                    "immature_balance": 0.0,
+                    "txcount": 0,
+                    "keypoololdest": 1700000000,
+                    "keypoolsize": 1000,
+                    "keypoolsize_hd_internal": 1000,
+                    "paytxfee": 0.00000000,
+                    "hdseedid": "0000000000000000000000000000000000000000",
+                    "private_keys_enabled": true,
+                    "avoid_reuse": false,
+                    "scanning": false
+                }))
+            }
+            "getblockcount" => {
+                Ok(json!(800000))
+            }
+            "getblockhash" => {
+                Ok(json!("0000000000000000000123456789abcdef0123456789abcdef0123456789abcdef"))
+            }
+            "getmempoolinfo" => {
+                Ok(json!({
+                    "loaded": true,
+                    "size": 100,
+                    "bytes": 100000,
+                    "usage": 200000,
+                    "total_fee": 0.00001000,
+                    "maxmempool": 300000000,
+                    "mempoolminfee": 0.00001000,
+                    "minrelaytxfee": 0.00001000
+                }))
+            }
+            "getpeerinfo" => {
+                Ok(json!([]))
+            }
+            "getrawmempool" => {
+                Ok(json!([]))
+            }
+            "estimatesmartfee" => {
+                Ok(json!({
+                    "feerate": 0.00001000,
+                    "blocks": 6
+                }))
+            }
+            _ => {
+                // Default response for unknown methods
+                Ok(json!(null))
+            }
+        }
+    }
+
+    async fn real_rpc_call(&self, method: &str, params: &[Value]) -> Result<Value> {
+        let url = self.rpc_url.as_ref()
+            .ok_or_else(|| anyhow::anyhow!("No RPC URL configured"))?;
+
+        let client = reqwest::Client::new();
+        let request_body = json!({
+            "jsonrpc": "2.0",
+            "id": 1,
+            "method": method,
+            "params": params
+        });
+
+        // TODO: Get RPC credentials from config/secrets
+        let response = client
+            .post(url)
+            .json(&request_body)
+            .send()
+            .await
+            .context("Failed to send RPC request")?;
+
+        let response_json: Value = response
+            .json::<Value>()
+            .await
+            .context("Failed to parse RPC response")?;
+
+        if let Some(error) = response_json.get("error") {
+            return Err(anyhow::anyhow!("Bitcoin RPC error: {}", error));
+        }
+
+        Ok(response_json.get("result")
+            .cloned()
+            .unwrap_or(Value::Null))
+    }
+
+    pub fn mode(&self) -> &BitcoinSimulationMode {
+        &self.mode
+    }
+}
+
+impl From<&str> for BitcoinSimulationMode {
+    fn from(s: &str) -> Self {
+        match s.to_lowercase().as_str() {
+            "mock" => BitcoinSimulationMode::Mock,
+            "testnet" => BitcoinSimulationMode::Testnet,
+            "mainnet" => BitcoinSimulationMode::Mainnet,
+            "none" | _ => BitcoinSimulationMode::None,
+        }
+    }
+}
+
+#[cfg(test)]
+mod tests {
+    use super::*;
+
+    #[tokio::test]
+    async fn test_mock_bitcoin_available() {
+        let simulator = BitcoinSimulator::new(BitcoinSimulationMode::Mock);
+        assert!(simulator.is_bitcoin_available());
+    }
+
+    #[tokio::test]
+    async fn test_mock_getblockchaininfo() {
+        let simulator = BitcoinSimulator::new(BitcoinSimulationMode::Mock);
+        let result = simulator.simulate_rpc_call("getblockchaininfo", &[]).await.unwrap();
+        assert!(result.get("blocks").is_some());
+    }
+
+    #[tokio::test]
+    async fn test_none_bitcoin_not_available() {
+        let simulator = BitcoinSimulator::new(BitcoinSimulationMode::None);
+        assert!(!simulator.is_bitcoin_available());
+    }
+}