boris
36 lines
1.1 KiB
Rust
36 lines
1.1 KiB
Rust
use fidc_core::factor_events::{self, Expr, Frame};
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use serde::Deserialize;
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use serde_json::{Value, json};
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use std::io::{self, Read};
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#[derive(Deserialize)]
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#[serde(deny_unknown_fields)]
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struct Request {
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expressions: std::collections::BTreeMap<String, Expr>,
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frame: Frame,
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}
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fn main() -> Result<(), Box<dyn std::error::Error>> {
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let mut input = String::new();
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io::stdin().read_to_string(&mut input)?;
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let output = if input.trim().is_empty() {
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factor_events::catalog()
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} else {
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let request: Request = serde_json::from_str(&input)?;
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let results = request
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.expressions
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.iter()
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.map(|(id, expr)| {
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let result = match factor_events::evaluate(expr, &request.frame) {
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Ok(v) => json!({"result":v}),
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Err(e) => json!({"error":e}),
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};
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(id.clone(), result)
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})
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.collect::<std::collections::BTreeMap<String, Value>>();
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json!({"contract":factor_events::CONTRACT,"results":results,"read_only":true})
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};
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println!("{}", serde_json::to_string(&output)?);
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Ok(())
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}
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