rust_logic_graph/node/
mod.rs

1
2use async_trait::async_trait;
3use serde::{Serialize, Deserialize};
4use serde_json::Value;
5use tracing::{info, debug};
6
7use crate::core::Context;
8use crate::rule::RuleResult;
9
10#[derive(Debug, Serialize, Deserialize, Clone)]
11pub enum NodeType {
12    RuleNode,
13    DBNode,
14    AINode,
15}
16
17#[async_trait]
18pub trait Node: Send + Sync {
19    fn id(&self) -> &str;
20    fn node_type(&self) -> NodeType;
21    async fn run(&self, ctx: &mut Context) -> RuleResult;
22}
23
24// ============================================================
25// RuleNode - Evaluates conditions and transforms data
26// ============================================================
27
28#[derive(Debug, Clone)]
29pub struct RuleNode {
30    pub id: String,
31    pub condition: String,
32}
33
34impl RuleNode {
35    pub fn new(id: impl Into<String>, condition: impl Into<String>) -> Self {
36        Self {
37            id: id.into(),
38            condition: condition.into(),
39        }
40    }
41}
42
43#[async_trait]
44impl Node for RuleNode {
45    fn id(&self) -> &str {
46        &self.id
47    }
48
49    fn node_type(&self) -> NodeType {
50        NodeType::RuleNode
51    }
52
53    async fn run(&self, ctx: &mut Context) -> RuleResult {
54        info!("RuleNode[{}]: Evaluating condition '{}'", self.id, self.condition);
55
56        // Simple condition evaluation (can be extended with proper parser)
57        let result = if self.condition == "true" {
58            Value::Bool(true)
59        } else if self.condition == "false" {
60            Value::Bool(false)
61        } else {
62            // Try to evaluate based on context
63            ctx.data.get(&self.condition).cloned().unwrap_or(Value::Bool(true))
64        };
65
66        debug!("RuleNode[{}]: Result = {:?}", self.id, result);
67        ctx.data.insert(format!("{}_result", self.id), result.clone());
68
69        Ok(result)
70    }
71}
72
73// ============================================================
74// DBNode - Simulates database operations
75// ============================================================
76
77#[derive(Debug, Clone)]
78pub struct DBNode {
79    pub id: String,
80    pub query: String,
81}
82
83impl DBNode {
84    pub fn new(id: impl Into<String>, query: impl Into<String>) -> Self {
85        Self {
86            id: id.into(),
87            query: query.into(),
88        }
89    }
90}
91
92#[async_trait]
93impl Node for DBNode {
94    fn id(&self) -> &str {
95        &self.id
96    }
97
98    fn node_type(&self) -> NodeType {
99        NodeType::DBNode
100    }
101
102    async fn run(&self, ctx: &mut Context) -> RuleResult {
103        info!("DBNode[{}]: Executing query '{}'", self.id, self.query);
104
105        // Simulate async DB operation
106        tokio::time::sleep(tokio::time::Duration::from_millis(100)).await;
107
108        // Mock database result
109        let mock_result = serde_json::json!({
110            "query": self.query,
111            "rows": [
112                {"id": 1, "name": "Alice", "active": true},
113                {"id": 2, "name": "Bob", "active": false}
114            ],
115            "count": 2
116        });
117
118        debug!("DBNode[{}]: Query result = {:?}", self.id, mock_result);
119        ctx.data.insert(format!("{}_result", self.id), mock_result.clone());
120
121        Ok(mock_result)
122    }
123}
124
125// ============================================================
126// AINode - Simulates AI/LLM operations
127// ============================================================
128
129#[derive(Debug, Clone)]
130pub struct AINode {
131    pub id: String,
132    pub prompt: String,
133}
134
135impl AINode {
136    pub fn new(id: impl Into<String>, prompt: impl Into<String>) -> Self {
137        Self {
138            id: id.into(),
139            prompt: prompt.into(),
140        }
141    }
142}
143
144#[async_trait]
145impl Node for AINode {
146    fn id(&self) -> &str {
147        &self.id
148    }
149
150    fn node_type(&self) -> NodeType {
151        NodeType::AINode
152    }
153
154    async fn run(&self, ctx: &mut Context) -> RuleResult {
155        info!("AINode[{}]: Processing prompt '{}'", self.id, self.prompt);
156
157        // Simulate async AI API call
158        tokio::time::sleep(tokio::time::Duration::from_millis(200)).await;
159
160        // Mock AI response based on context
161        let context_summary: Vec<String> = ctx.data.keys().cloned().collect();
162        let mock_response = serde_json::json!({
163            "prompt": self.prompt,
164            "response": format!("AI processed: {} with context keys: {:?}", self.prompt, context_summary),
165            "confidence": 0.95,
166            "model": "mock-gpt-4"
167        });
168
169        debug!("AINode[{}]: AI response = {:?}", self.id, mock_response);
170        ctx.data.insert(format!("{}_result", self.id), mock_response.clone());
171
172        Ok(mock_response)
173    }
174}
rust_logic_graph/node/mod.rs

rust_logic_graph/node/
mod.rs
