phlow_engine/
script.rs

1use crate::context::Context;
2use phlow_sdk::prelude::*;
3use phs::ScriptError;
4use rhai::{plugin::*, serde::to_dynamic, Engine, Scope};
5use std::sync::Arc;
6
7#[derive(Debug, Clone)]
8pub struct Script {
9    pub script: phs::Script,
10}
11
12impl Script {
13    pub fn try_build(engine: Arc<Engine>, script: &Value) -> Result<Self, ScriptError> {
14        let script = phs::Script::try_build(engine, script)?;
15        Ok(Self { script })
16    }
17
18    pub fn evaluate(&self, context: &Context) -> Result<Value, ScriptError> {
19        let mut scope = Scope::new();
20
21        let steps: Dynamic = to_dynamic(context.steps.clone()).map_err(ScriptError::EvalError)?;
22        let main: Dynamic = to_dynamic(context.main.clone()).map_err(ScriptError::EvalError)?;
23        let payload: Dynamic =
24            to_dynamic(context.payload.clone()).map_err(ScriptError::EvalError)?;
25        let input: Dynamic = to_dynamic(context.input.clone()).map_err(ScriptError::EvalError)?;
26
27        scope.push_constant("steps", steps);
28        scope.push_constant("main", main);
29        scope.push_constant("payload", payload);
30        scope.push_constant("input", input);
31
32        self.script.evaluate_from_scope(&mut scope)
33    }
34}