"""Behavioral repro: cron monitor hash gate persists at DETECTION time, so a
run that dies before consuming mail is suppressed on the next tick if the
observed output is unchanged. Disposable job dict + in-memory persist; the
live job and store are untouched.

Controls per forseti (2740):
  - positive control: changed ID set DOES admit another run
  - suppression control: unchanged output after a SUCCESSFUL run suppresses
  - crash case: persist detection, simulate death before 'read', reload state
    as after restart, rerun with SAME id set -> suppressed (the finding)
Each condition repeated 3x.

Guarded behind __main__: importing this module (e.g. by pytest collection)
must not monkeypatch the live cron.monitor module or execute it.
"""
import sys, copy


def main():
    sys.path.insert(0, "/home/lkraven/.hermes/hermes-agent")
    from cron import monitor

    STATE = {}  # in-memory stand-in for jobs.json monitor_state

    def fake_persist(job_id, new_hash, output):
        STATE[job_id] = {"last_output_hash": new_hash, "snapshot": output}

    monitor._persist_monitor_state = fake_persist
    monitor._read_last_output = lambda job_id: STATE.get(job_id, {}).get("snapshot", "")
    monitor._write_last_output = lambda job_id, output: STATE[job_id].__setitem__("snapshot", output)

    OUTPUT = [""]  # current observed monitor output, set per tick

    def fake_source(job):
        return True, OUTPUT[0]

    monitor._run_monitor_source = fake_source

    def tick(ids):
        """One monitor tick with the given unread id set. Returns (ok, changed)."""
        OUTPUT[0] = "\n".join(f"[{i}]" for i in ids) + "\n"
        job = {"id": "disposable-test-job", "monitor_script": "stub"}
        if "disposable-test-job" in STATE:  # simulate fresh load from store
            job["monitor_state"] = copy.deepcopy(STATE["disposable-test-job"])
        out = monitor.check_monitor(job)
        return out.ok, getattr(out, "changed", None)

    results = []
    for rep in range(1, 4):
        # --- consumption control: a SUCCESSFUL run consumes -> output genuinely changes.
        # (Was: same ids after success, which only proved unchanged-input suppression.
        #  Fix: after the run consumes, the mailbox is empty, so the next observation
        #  is the idle sentinel; that transition admits once, stable idle suppresses.)
        STATE.clear()
        r1 = tick(["100"])                      # first observation -> wake
        r2 = tick([])                           # agent consumed -> monitor now says idle
        r3 = tick([])                           # still idle -> suppressed
        results.append((f"rep{rep} control-consume: first={r1} after-consume={r2} stable-idle={r3}",
                        r1 == (True, True) and r2 == (True, True) and r3 == (True, False)))

        # --- suppression control (renamed honestly): unchanged output suppresses ---
        STATE.clear()
        r1 = tick(["100"])
        r2 = tick(["100"])                      # no consumption, same set next tick
        results.append((f"rep{rep} control-unchanged-suppresses: first={r1} unchanged={r2}",
                        r1 == (True, True) and r2 == (True, False)))

        # --- positive control: changed ID set admits another run ---
        STATE.clear()
        r1 = tick(["100"])
        r2 = tick(["100", "101"])               # new mail -> changed -> wake
        results.append((f"rep{rep} control-change: first={r1} changed={r2}",
                        r1 == (True, True) and r2 == (True, True)))

        # --- crash case: detection persisted, agent died BEFORE consuming mail ---
        STATE.clear()
        r1 = tick(["200", "201"])               # detection: hash persisted pre-agent
        # (agent session would run `postbox read` here; simulate it dying first)
        r2 = tick(["200", "201"])               # next tick, same unread set, post-restart reload
        r3 = tick(["200", "201"])               # and again: unbounded silence
        results.append((f"rep{rep} crash-before-read: detect={r1} retry1={r2} retry2={r3}",
                        r1 == (True, True) and r2 == (True, False) and r3 == (True, False)))

        # --- recovery path: stranded mail + a NEW message eventually wakes ---
        r4 = tick(["200", "201", "202"])        # a genuinely new message re-wakes,
        results.append((f"rep{rep} recovery-on-new-mail: {r4}", r4 == (True, True)))

    ok = True
    for line, passed in results:
        print(("PASS " if passed else "FAIL ") + line)
        ok = ok and passed
    print("ALL PASS" if ok else "SOME FAILED")
    sys.exit(0 if ok else 1)


if __name__ == "__main__":
    main()