geometric_langlands_cli/
persistence.rs

1use anyhow::Result;
2use serde::{Deserialize, Serialize};
3use std::path::Path;
4use uuid::Uuid;
5use chrono::{DateTime, Utc};
6use crate::commands::compute::ComputationResult;
7
8#[derive(Debug, Clone, Serialize, Deserialize)]
9pub struct StoredComputation {
10    pub id: String,
11    pub computation_type: String,
12    pub timestamp: DateTime<Utc>,
13    pub result: String, // JSON serialized ComputationResult
14    pub metadata: Option<serde_json::Value>,
15}
16
17pub struct Database {
18    _db_path: std::path::PathBuf,
19}
20
21impl Database {
22    pub async fn new(db_path: &Path) -> Result<Self> {
23        // For now, we'll use a simple file-based persistence
24        // In a real implementation, this would initialize SQLite
25        if let Some(parent) = db_path.parent() {
26            std::fs::create_dir_all(parent)?;
27        }
28        
29        Ok(Self {
30            _db_path: db_path.to_path_buf(),
31        })
32    }
33    
34    pub async fn init(&self) -> Result<()> {
35        // Initialize database schema
36        // For now, this is a no-op
37        Ok(())
38    }
39    
40    pub async fn migrate(&self) -> Result<()> {
41        // Run database migrations
42        // For now, this is a no-op
43        Ok(())
44    }
45    
46    pub async fn store_computation(
47        &self,
48        computation_type: &str,
49        result: &ComputationResult,
50    ) -> Result<String> {
51        let id = Uuid::new_v4().to_string();
52        let timestamp = Utc::now();
53        let result_json = serde_json::to_string(result)?;
54        
55        let computation = StoredComputation {
56            id: id.clone(),
57            computation_type: computation_type.to_string(),
58            timestamp,
59            result: result_json,
60            metadata: None,
61        };
62        
63        // In a real implementation, this would insert into SQLite
64        // For now, we'll just log it
65        println!("Stored computation {} of type {}", id, computation_type);
66        
67        Ok(id)
68    }
69    
70    pub async fn list_computations(&self, limit: u32) -> Result<Vec<StoredComputation>> {
71        // In a real implementation, this would query SQLite
72        // For now, return empty list
73        Ok(vec![])
74    }
75    
76    pub async fn get_computation(&self, id: &str) -> Result<Option<StoredComputation>> {
77        // In a real implementation, this would query SQLite by ID
78        // For now, return None
79        Ok(None)
80    }
81    
82    pub async fn delete_computation(&self, id: &str) -> Result<()> {
83        // In a real implementation, this would delete from SQLite
84        println!("Deleted computation {}", id);
85        Ok(())
86    }
87    
88    pub async fn export(&self, path: &Path) -> Result<()> {
89        // Export database to file
90        std::fs::write(path, "# Database export placeholder\n")?;
91        Ok(())
92    }
93    
94    pub async fn import(&self, path: &Path) -> Result<()> {
95        // Import database from file
96        let _content = std::fs::read_to_string(path)?;
97        println!("Imported database from {}", path.display());
98        Ok(())
99    }
100}
geometric_langlands_cli/persistence.rs

geometric_langlands_cli/
persistence.rs
