hero/core/engine/examples/finance/example.rs
2025-07-29 01:15:23 +02:00

71 lines
2.0 KiB
Rust

use engine::mock_db::create_mock_db;
use engine::{create_heromodels_engine, eval_file};
use rhai::Engine;
use std::path::Path;
mod mock;
use mock::seed_finance_data;
fn main() -> Result<(), Box<dyn std::error::Error>> {
println!("Finance Rhai Example");
println!("===================");
// Create a mock database
let db = create_mock_db();
// Seed the database with some initial data
seed_finance_data(db.clone());
// Create the Rhai engine using our central engine creator
let mut engine = create_heromodels_engine(db.clone());
// Register timestamp helper functions
register_timestamp_helpers(&mut engine);
// Get the path to the script
let script_path = Path::new(file!())
.parent()
.unwrap()
.join("finance_script.rhai");
println!("\nRunning script: {}", script_path.display());
println!("---------------------");
// Run the script
match eval_file(&engine, &script_path) {
Ok(result) => {
if !result.is_unit() {
println!("\nScript returned: {:?}", result);
}
println!("\nScript executed successfully!");
Ok(())
}
Err(err) => {
eprintln!("\nError running script: {}", err);
Err(Box::new(std::io::Error::new(
std::io::ErrorKind::Other,
err.to_string(),
)))
}
}
}
// Register timestamp helper functions with the engine
fn register_timestamp_helpers(engine: &mut Engine) {
use chrono::{TimeZone, Utc};
// Function to get current timestamp
engine.register_fn("timestamp_now", || Utc::now().timestamp() as i64);
// Function to format a timestamp
engine.register_fn("format_timestamp", |ts: i64| {
let dt = Utc
.timestamp_opt(ts, 0)
.single()
.expect("Invalid timestamp");
dt.format("%Y-%m-%d %H:%M:%S UTC").to_string()
});
println!("Timestamp helper functions registered successfully.");
}