use serde_json::Value;
use crate::session::Session;
pub fn rust(session: &Session, model: &str, threshold: f64) -> String {
let questions: Vec<(String, Value)> = session
.questions
.iter()
.filter_map(|(name, q)| Some((name.clone(), serde_json::to_value(q).ok()?)))
.collect();
let mut out = String::new();
out.push_str("#[tokio::main]\nasync fn main() -> typesafe::Result<()> {\n");
out.push_str(" let client = Client::from_env()?; // TYPESAFE_API_KEY\n\n");
out.push_str(" let res = client\n .system_one(\n");
out.push_str(&format!(" {},\n", state_literal(&session.state)));
out.push_str(" Questions::new()\n");
for (name, q) in &questions {
out.push_str(&format!(
" .with({:?}, {})\n",
name,
builder(q, 20)
));
}
out.push_str(" )\n");
out.push_str(&format!(" .model({model:?})\n"));
out.push_str(" .await?;\n\n");
if questions.is_empty() {
out.push_str(" // add questions in the REPL and run :rust again\n");
}
for (name, q) in &questions {
out.push_str(&reader(name, q, threshold));
}
out.push_str("\n Ok(())\n}\n");
let mut imports = vec!["Client", "Questions"];
for (_, q) in &questions {
match kind(q) {
"noul" => imports.push("Noul"),
"choice" => imports.push("Choice"),
"score" => imports.push("Score"),
_ => {}
}
}
if out.contains("json!(") {
imports.push("json");
}
imports.sort_unstable();
imports.dedup();
format!(
"// Cargo.toml: typesafe-ai-sdk = \"0.1\"\nuse typesafe::{{{}}};\n\n{out}",
imports.join(", ")
)
}
fn kind(q: &Value) -> &str {
q.get("type").and_then(Value::as_str).unwrap_or("raw")
}
fn builder(q: &Value, indent: usize) -> String {
let pad = " ".repeat(indent + 4);
let instructions = q.get("instructions").map(literal).unwrap_or_default();
match kind(q) {
"noul" => {
let mut s = format!("Noul::new({instructions})");
let criteria = q.get("criteria");
if let Some(v) = criteria.and_then(|c| c.get("true")) {
s.push_str(&format!("\n{pad}.when_true({})", literal(v)));
}
if let Some(v) = criteria.and_then(|c| c.get("false")) {
s.push_str(&format!("\n{pad}.when_false({})", literal(v)));
}
s
}
"choice" => {
let mut s = format!("Choice::new({instructions})");
if let Some(criteria) = q.get("criteria").and_then(Value::as_object) {
for (label, desc) in criteria {
s.push_str(&match desc {
Value::Null => format!("\n{pad}.label({label:?})"),
v => format!("\n{pad}.option({label:?}, {})", literal(v)),
});
}
}
s
}
"score" => {
let levels: Vec<String> = q
.get("criteria")
.and_then(Value::as_array)
.map(|a| a.iter().map(literal).collect())
.unwrap_or_default();
format!(
"Score::new(\n{pad}{instructions},\n{pad}[{}],\n{})",
levels.join(", "),
" ".repeat(indent)
)
}
_ => format!("json!({q})"),
}
}
fn reader(name: &str, q: &Value, threshold: f64) -> String {
match kind(q) {
"noul" => format!(
" let {name} = res.noul({name:?}).expect(\"asked\");\n\
\x20 println!(\"{name}: {{:.2}} → {{}}\", {name}.noul, {name}.is_yes({threshold:.2}));\n"
),
"choice" => format!(
" let {name} = res.choice({name:?}).expect(\"asked\");\n\
\x20 if {name}.confidence >= 0.6 {{\n\
\x20 println!(\"{name}: {{}}\", {name}.choice);\n\
\x20 }} else {{\n\
\x20 println!(\"{name}: unsure ({{:.2}}), send to a human\", {name}.confidence);\n\
\x20 }}\n"
),
"score" => format!(
" let {name} = res.score({name:?}).expect(\"asked\");\n\
\x20 println!(\"{name}: {{:.2}} of {{}} (confidence {{:.2}})\", {name}.score, {name}.legend.len() - 1, {name}.confidence);\n"
),
_ => format!(" // {name}: a raw question — read it from res.raw\n"),
}
}
fn state_literal(state: &Value) -> String {
match state {
Value::String(s) => format!("{s:?}"),
other => format!("json!({other})"),
}
}
fn literal(v: &Value) -> String {
match v {
Value::String(s) => format!("{s:?}"),
other => format!("json!({other})"),
}
}