kotoba_rewrite/rewrite/
engine.rs

1//! 書換えエンジン
2
3use kotoba_core::prelude::{RuleDPO, GraphInstance};
4use kotoba_core::ir::*;
5use kotoba_storage::KeyValueStore;
6use kotoba_core::types::*;
7use crate::rewrite::{RuleApplier, RuleMatcher, DPOMatch};
8// use kotoba_cid::CidManager; // Temporarily disabled
9use std::collections::HashMap;
10use std::sync::Arc;
11use tracing::warn;
12// use anyhow::Result; // Use KotobaError from kotoba_core::prelude instead
13
14/// 書換えエンジン with KeyValueStore backend
15#[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    /// ルールをマッチングして適用 (KeyValueStoreベース)
32    pub async fn match_rule(&self, graph_key: &str, rule: &RuleIR) -> anyhow::Result<Vec<serde_json::Value>> {
33        // TODO: Implement rule matching using KeyValueStore
34        warn!("Rule matching not fully implemented yet");
35        Ok(vec![])
36    }
37
38    /// ルールを適用してパッチを生成 (KeyValueStoreベース)
39    pub async fn rewrite(&self, graph_key: &str, rule: &RuleIR, strategy: &StrategyIR) -> anyhow::Result<serde_json::Value> {
40        // TODO: Implement rewrite logic using KeyValueStore
41        warn!("Rewrite logic not fully implemented yet");
42
43        // For now, return a simple patch structure
44        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    /// ルールを保存
53    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    /// ルールを読み込み
62    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    /// 書き換え履歴を保存
74    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}