kotoba_rewrite/rewrite/
engine.rs1use kotoba_core::prelude::{RuleDPO, GraphInstance};
4use kotoba_core::ir::*;
5use kotoba_storage::KeyValueStore;
6use kotoba_core::types::*;
7use crate::rewrite::{RuleApplier, RuleMatcher, DPOMatch};
8use std::collections::HashMap;
10use std::sync::Arc;
11use tracing::warn;
12#[derive(Debug)]
16pub struct RewriteEngine<T: KeyValueStore + 'static> {
17 storage: Arc<T>,
18 matcher: RuleMatcher<T>,
19 applier: RuleApplier<T>,
20}
21
22impl<T: KeyValueStore + 'static> RewriteEngine<T> {
23 pub fn new(storage: Arc<T>) -> Self {
24 Self {
25 storage: storage.clone(),
26 matcher: RuleMatcher::new(storage.clone()),
27 applier: RuleApplier::new(storage),
28 }
29 }
30
31 pub async fn match_rule(&self, graph_key: &str, rule: &RuleIR) -> anyhow::Result<Vec<serde_json::Value>> {
33 warn!("Rule matching not fully implemented yet");
35 Ok(vec![])
36 }
37
38 pub async fn rewrite(&self, graph_key: &str, rule: &RuleIR, strategy: &StrategyIR) -> anyhow::Result<serde_json::Value> {
40 warn!("Rewrite logic not fully implemented yet");
42
43 Ok(serde_json::json!({
45 "graph_key": graph_key,
46 "rule_name": rule.name,
47 "strategy": "not_implemented",
48 "status": "pending"
49 }))
50 }
51
52 pub async fn save_rule(&self, rule: &RuleIR) -> Result<()> {
54 let rule_key = format!("rule:{}", rule.name);
55 let rule_data = serde_json::to_vec(rule)?;
56
57 self.storage.put(rule_key.as_bytes(), &rule_data).await?;
58 Ok(())
59 }
60
61 pub async fn load_rule(&self, rule_name: &str) -> Result<Option<RuleIR>> {
63 let rule_key = format!("rule:{}", rule_name);
64 match self.storage.get(rule_key.as_bytes()).await? {
65 Some(data) => {
66 let rule: RuleIR = serde_json::from_slice(&data)?;
67 Ok(Some(rule))
68 }
69 None => Ok(None)
70 }
71 }
72
73 pub async fn save_rewrite_history(&self, graph_key: &str, rule_name: &str, result: &serde_json::Value) -> Result<()> {
75 let history_key = format!("history:{}:{}:{}", graph_key, rule_name, chrono::Utc::now().timestamp());
76 let history_data = serde_json::to_vec(result)?;
77
78 self.storage.put(history_key.as_bytes(), &history_data).await?;
79 Ok(())
80 }
81}