loopd: cron tick, new session per run

Co-Authored-By: ornith-1.5-35b-a3b <agent@wntrmute.dev>

crates/loopd/src/scheduler.rs

@@ -3,6 +3,7 @@
 use crate::baseline::Baseline;
 use crate::channel::{Busy, Context};
 use crate::compact;
+use crate::cron;
 use crate::jobs::{self, Run, RunStatus};
 use crate::session::{Session, SessionError};
 use crate::turn::{Runtime, run_turn};
@@ -42,6 +43,133 @@ impl Scheduler {
             self.leftovers_closed = true;
         }
         self.heartbeat(ctx, now, &mut work);
+
+        let jobs_dir = ctx.cfg.paths.home.join("jobs");
+        let runs_path = jobs_dir.join("runs.jsonl");
+        let jobs = match jobs::load(&jobs_dir) {
+            Ok(jobs) => jobs,
+            Err(e) => {
+                eprintln!("loopd: {e}");
+                return work;
+            }
+        };
+        for job in &jobs {
+            match cron::due(&job.schedule, now) {
+                Ok(true) => {}
+                Ok(false) => continue,
+                Err(e) => {
+                    eprintln!("loopd: {e}");
+                    continue;
+                }
+            }
+            match jobs::live_session(&runs_path, &job.name) {
+                Ok(Some(_)) => {
+                    work.push(TickWork::SkippedJob {
+                        name: job.name.clone(),
+                    });
+                    continue;
+                }
+                Ok(None) => {}
+                Err(e) => {
+                    eprintln!("loopd: cannot read the live session for {}: {e}", job.name);
+                    continue;
+                }
+            }
+            let id = match jobs::session_id(&job.name, now) {
+                Ok(id) => id,
+                Err(e) => {
+                    eprintln!("loopd: {e}");
+                    continue;
+                }
+            };
+            let held = match ctx.hold(id.clone()) {
+                Ok(held) => held,
+                Err(Busy) => {
+                    work.push(TickWork::SkippedJob {
+                        name: job.name.clone(),
+                    });
+                    continue;
+                }
+            };
+            let baseline = match Baseline::assemble(&ctx.cfg, &ctx.registry) {
+                Ok(baseline) => baseline,
+                Err(e) => {
+                    eprintln!("loopd: job {} baseline: {e}", job.name);
+                    drop(held);
+                    continue;
+                }
+            };
+            let mut session = match Session::create(
+                &ctx.cfg.paths.home,
+                id.clone(),
+                baseline,
+                ctx.cfg.slots.background,
+            ) {
+                Ok(session) => session,
+                Err(SessionError::Exists(_)) => {
+                    match Session::open(&ctx.cfg.paths.home, id.clone()) {
+                        Ok(session) => session,
+                        Err(e) => {
+                            eprintln!("loopd: job {} session {}: {e}", job.name, id.as_str());
+                            drop(held);
+                            continue;
+                        }
+                    }
+                }
+                Err(e) => {
+                    eprintln!("loopd: job {} session {}: {e}", job.name, id.as_str());
+                    drop(held);
+                    continue;
+                }
+            };
+            let _ = jobs::append(
+                &runs_path,
+                &Run {
+                    time: now,
+                    name: job.name.clone(),
+                    session: id.clone(),
+                    status: RunStatus::Started,
+                },
+            );
+            let runtime = Runtime {
+                cfg: &ctx.cfg,
+                client: &ctx.client,
+                port: &*ctx.port,
+                registry: &ctx.registry,
+            };
+            let text = format!("It is {}.\n\n{}", now.to_rfc3339(), job.prompt);
+            let mut emit = |_event: &TurnEvent| {};
+            let outcome = run_turn(&mut session, &runtime, &text, None, &mut emit);
+            let outcome = compact::finish_turn(
+                &mut session,
+                &runtime,
+                &*ctx.memory,
+                &text,
+                None,
+                &mut emit,
+                outcome,
+            );
+            let status = if outcome.is_ok() {
+                RunStatus::Finished
+            } else {
+                RunStatus::Failed
+            };
+            let _ = jobs::append(
+                &runs_path,
+                &Run {
+                    time: now,
+                    name: job.name.clone(),
+                    session: id.clone(),
+                    status,
+                },
+            );
+            drop(held);
+            work.push(TickWork::Job {
+                name: job.name.clone(),
+                session: id,
+            });
+        }
+
         work
     }
 

crates/loopd/tests/scheduler_cron.rs

@@ -0,0 +1,189 @@
+//! Tests for the cron tick. Do not edit.
+
+mod support;
+
+use bxcore::Timestamp;
+use loopd::channel::Context;
+use loopd::jobs::{self, RunStatus};
+use loopd::llama::Client;
+use loopd::memory::NoMemory;
+use loopd::scheduler::{Scheduler, TickWork};
+use loopd::tools::Registry;
+use std::sync::Arc;
+use support::{FakeServer, Home, Reply, ScriptedPort};
+
+const CHAT: &str = "/v1/chat/completions";
+
+fn sse() -> Reply {
+    let data1 = r#"data: {"choices":[{"finish_reason":null,"index":0,"delta":{"content":"done"}}],"id":"j","timings":{"cache_n":0,"prompt_n":10,"predicted_n":1}}"#;
+    let data2 = r#"data: {"choices":[{"finish_reason":"stop","index":0,"delta":{}}],"id":"j","timings":{"cache_n":0,"prompt_n":10,"predicted_n":1}}"#;
+    let body = format!("{data1}\n\n{data2}\n\ndata: [DONE]\n\n");
+    Reply::raw(format!(
+        "HTTP/1.1 200 OK\r\nContent-Type: text/event-stream\r\nContent-Length: {}\r\nConnection: close\r\n\r\n{body}",
+        body.len()
+    ))
+}
+
+fn ts(s: &str) -> Timestamp {
+    Timestamp::parse(s).unwrap()
+}
+
+fn world(schedule: &str) -> (Home, FakeServer, Arc<Context>) {
+    let home = Home::new();
+    home.write("compact.md", "Summarise.\n");
+    home.write(
+        "jobs/mail.toml",
+        &format!("schedule = \"{schedule}\"\nprompt = \"Check mail.\"\n"),
+    );
+    let server = FakeServer::start();
+    let cfg = home.config(&server.socket);
+    server.route(CHAT, vec![sse(), sse()]);
+    let ctx = Arc::new(Context::new(
+        cfg.clone(),
+        Client::new(cfg),
+        Box::new(ScriptedPort::new(vec![])),
+        Registry::m2b(),
+        Box::new(NoMemory),
+    ));
+    (home, server, ctx)
+}
+
+#[test]
+fn a_due_job_starts_a_new_session_on_the_background_slot() {
+    let (home, server, ctx) = world("0 7 * * *");
+    let mut sched = Scheduler::new(ts("2026-10-03T06:00:00.000Z"));
+    let work = sched.tick(&ctx, ts("2026-10-03T07:00:00.000Z"));
+    let want = jobs::session_id("mail", ts("2026-10-03T07:00:00.000Z")).unwrap();
+    assert_eq!(
+        work,
+        vec![TickWork::Job {
+            name: "mail".to_string(),
+            session: want.clone()
+        }]
+    );
+    let sent = server.requests_to(CHAT);
+    assert_eq!(sent.len(), 1);
+    assert_eq!(sent[0].json()["id_slot"], 1);
+    let body = sent[0].json();
+    let last = body["messages"].as_array().unwrap().last().unwrap();
+    let content = last["content"].as_str().unwrap();
+    assert!(
+        content.starts_with("It is 2026-10-03T07:00:00.000Z."),
+        "{content}"
+    );
+    assert!(content.contains("Check mail."), "{content}");
+    let s = loopd::session::Session::open(&home.dir, want).unwrap();
+    assert_eq!(s.slot(), 1);
+}
+
+#[test]
+fn a_job_not_due_does_not_run() {
+    let (_home, server, ctx) = world("0 7 * * *");
+    let mut sched = Scheduler::new(ts("2026-10-03T06:00:00.000Z"));
+    let work = sched.tick(&ctx, ts("2026-10-03T06:59:00.000Z"));
+    assert!(work.is_empty());
+    assert!(server.requests_to(CHAT).is_empty());
+}
+
+#[test]
+fn a_live_previous_run_skips_the_tick() {
+    let (home, server, ctx) = world("* * * * *");
+    let ledger = home.dir.join("jobs/runs.jsonl");
+    let previous = jobs::session_id("mail", ts("2026-10-03T06:59:00.000Z")).unwrap();
+    jobs::append(
+        &ledger,
+        &jobs::Run {
+            time: ts("2026-10-03T06:59:00.000Z"),
+            name: "mail".to_string(),
+            session: previous.clone(),
+            status: RunStatus::Started,
+        },
+    )
+    .unwrap();
+    let held = ctx.hold(previous).expect("hold");
+    let mut sched = Scheduler::new(ts("2026-10-03T06:00:00.000Z"));
+    let work = sched.tick(&ctx, ts("2026-10-03T07:00:00.000Z"));
+    assert_eq!(
+        work,
+        vec![TickWork::SkippedJob {
+            name: "mail".to_string()
+        }]
+    );
+    assert!(server.requests_to(CHAT).is_empty());
+    let text = home.read("jobs/runs.jsonl");
+    assert!(text.contains("started"), "{text}");
+    assert!(
+        !text.contains("failed"),
+        "a leftover still held is not closed as failed: {text}"
+    );
+    drop(held);
+}
+
+#[test]
+fn leftover_started_is_failed_on_the_first_tick() {
+    let (home, _server, ctx) = world("* * * * *");
+    let ledger = home.dir.join("jobs/runs.jsonl");
+    let previous = jobs::session_id("mail", ts("2026-10-03T06:59:00.000Z")).unwrap();
+    jobs::append(
+        &ledger,
+        &jobs::Run {
+            time: ts("2026-10-03T06:59:00.000Z"),
+            name: "mail".to_string(),
+            session: previous.clone(),
+            status: RunStatus::Started,
+        },
+    )
+    .unwrap();
+    let mut sched = Scheduler::new(ts("2026-10-03T07:00:00.000Z"));
+    sched.tick(&ctx, ts("2026-10-03T07:00:00.000Z"));
+    let text = home.read("jobs/runs.jsonl");
+    assert!(
+        text.contains("failed"),
+        "leftover started was closed: {text}"
+    );
+    assert!(text.contains(previous.as_str()), "{text}");
+}
+
+#[test]
+fn a_cron_turn_has_no_speaker() {
+    let (home, _server, ctx) = world("0 7 * * *");
+    let mut sched = Scheduler::new(ts("2026-10-03T06:00:00.000Z"));
+    sched.tick(&ctx, ts("2026-10-03T07:00:00.000Z"));
+    let id = jobs::session_id("mail", ts("2026-10-03T07:00:00.000Z")).unwrap();
+    let recs = {
+        let text = home.read(&format!("sessions/{}/0.jsonl", id.as_str()));
+        text.lines()
+            .map(|l| serde_json::from_str::<bxcore::LogRecord>(l).unwrap())
+            .collect::<Vec<_>>()
+    };
+    let user = recs
+        .iter()
+        .find_map(|r| match r {
+            bxcore::LogRecord::User { speaker, .. } => Some(speaker),
+            _ => None,
+        })
+        .unwrap();
+    assert_eq!(user, &None);
+}
+
+#[test]
+fn two_due_minutes_make_two_sessions() {
+    let (home, server, ctx) = world("* * * * *");
+    let mut sched = Scheduler::new(ts("2026-10-03T06:58:00.000Z"));
+    sched.tick(&ctx, ts("2026-10-03T06:59:00.000Z"));
+    sched.tick(&ctx, ts("2026-10-03T07:00:00.000Z"));
+    assert_eq!(server.requests_to(CHAT).len(), 2);
+    let a = jobs::session_id("mail", ts("2026-10-03T06:59:00.000Z")).unwrap();
+    let b = jobs::session_id("mail", ts("2026-10-03T07:00:00.000Z")).unwrap();
+    assert_ne!(a, b);
+    assert!(
+        home.dir
+            .join(format!("sessions/{}/0.jsonl", a.as_str()))
+            .is_file()
+    );
+    assert!(
+        home.dir
+            .join(format!("sessions/{}/0.jsonl", b.as_str()))
+            .is_file()
+    );
+}