; Phase 3 — trace: console output as attached content-addressed objects.
; Fixture story: tracer-1 logs console/tool entries and commits with traces
; (drain-at-commit granularity); quiet-1 stays silent and gets a manual
; genesis trace attached + rebound; a failed commit keeps the buffer; a
; plain commit! deliberately leaves the buffer alone (agent-chosen binding).

(define agt-db (persist/mem-backend))
(define agt-sp (agentic/space agt-db "agentic-trace-test"))
(define agt-repo (agentic/space-repo agt-sp))
(define
  agt-a
  (agentic/spawn!
    agt-sp
    "tracer-1"
    (agentic/briefing "trace things" "exercise the trace layer" {})))
(define
  agt-b
  (agentic/spawn!
    agt-sp
    "quiet-1"
    (agentic/briefing "stay quiet" "no console output" {})))

(agentic-test
  "fresh agent has an empty buffer"
  (= (agentic/trace-pending agt-sp "tracer-1") (list))
  true)
(agentic-test
  "trace! appends to the buffer"
  (agentic/trace! agt-sp "tracer-1" "console" "$ compiling")
  true)

(agentic/trace! agt-sp "tracer-1" "tool" "sx_eval (+ 1 2)")

(agentic-test
  "pending sees logged entries"
  (len (agentic/trace-pending agt-sp "tracer-1"))
  2)
(agentic-test
  "pending preserves log order"
  (get (nth (agentic/trace-pending agt-sp "tracer-1") 0) :text)
  "$ compiling")
(agentic-test
  "buffers are per agent"
  (= (agentic/trace-pending agt-sp "quiet-1") (list))
  true)

; ---- commit drains the buffer into an attached trace ----
(define
  agt-c1
  (agentic/commit-with-trace!
    agt-sp
    "tracer-1"
    "finding"
    (assoc {} "notes.md" "found it\n")
    {:message "first finding"}))

(agentic-test
  "commit-with-trace! commits"
  (starts-with? (get agt-c1 :cid) "sx1:")
  true)
(agentic-test
  "commit-with-trace! attaches a trace"
  (starts-with? (get agt-c1 :trace) "sx1:")
  true)
(agentic-test
  "commit advances the head"
  (= (agentic/head agt-sp "tracer-1") (get agt-c1 :cid))
  true)
(agentic-test
  "trace-for finds the bound trace"
  (agentic/console-trace? (agentic/trace-for agt-sp (get agt-c1 :cid)))
  true)
(agentic-test
  "bound trace carries the entries"
  (len (agentic/trace-entries (agentic/trace-for agt-sp (get agt-c1 :cid))))
  2)
(agentic-test
  "bound trace keeps entry order"
  (get
    (nth
      (agentic/trace-entries (agentic/trace-for agt-sp (get agt-c1 :cid)))
      0)
    :text)
  "$ compiling")
(agentic-test
  "trace names its commit by cid"
  (get (agentic/trace-for agt-sp (get agt-c1 :cid)) :commit)
  (get agt-c1 :cid))
(agentic-test
  "trace names its agent"
  (get (agentic/trace-for agt-sp (get agt-c1 :cid)) :agent)
  "tracer-1")
(agentic-test
  "trace is NOT in the commit tree"
  (=
    (git/tree-names
      (git/read
        agt-repo
        (git/commit-tree (git/read agt-repo (get agt-c1 :cid)))))
    (list "notes.md"))
  true)
(agentic-test
  "buffer drained after commit"
  (= (agentic/trace-pending agt-sp "tracer-1") (list))
  true)

; ---- granularity = the commit: only entries since the last drain travel ----
(agentic/trace! agt-sp "tracer-1" "console" "$ second round")
(define
  agt-c2
  (agentic/commit-with-trace!
    agt-sp
    "tracer-1"
    "refactor"
    (assoc {} "notes.md" "refined\n")
    {:message "second"}))

(agentic-test
  "next trace carries only new entries"
  (len (agentic/trace-entries (agentic/trace-for agt-sp (get agt-c2 :cid))))
  1)
(agentic-test
  "next trace text"
  (get
    (nth
      (agentic/trace-entries (agentic/trace-for agt-sp (get agt-c2 :cid)))
      0)
    :text)
  "$ second round")
(agentic-test
  "earlier trace is unchanged"
  (len (agentic/trace-entries (agentic/trace-for agt-sp (get agt-c1 :cid))))
  2)

; ---- a silent commit binds nothing ----
(define
  agt-c3
  (agentic/commit-with-trace!
    agt-sp
    "tracer-1"
    "decision"
    (assoc {} "notes.md" "done\n")
    {:message "silent"}))

(agentic-test "silent commit has no trace key" (has-key? agt-c3 :trace) false)
(agentic-test
  "silent commit still commits"
  (= (agentic/head agt-sp "tracer-1") (get agt-c3 :cid))
  true)
(agentic-test
  "trace-for nil on a traceless commit"
  (agentic/trace-for agt-sp (get agt-c3 :cid))
  nil)

; ---- attachment is external to the object layer ----
(agentic-test
  "attached commit round-trips to the same cid"
  (= (git/cid (git/read agt-repo (get agt-c1 :cid))) (get agt-c1 :cid))
  true)
(agentic-test
  "trace object is content-addressed"
  (=
    (get agt-c1 :trace)
    (git/cid
      (agentic/console-trace
        (list
          (agentic/trace-entry "console" "$ compiling")
          (agentic/trace-entry "tool" "sx_eval (+ 1 2)"))
        {:agent "tracer-1" :commit (get agt-c1 :cid)})))
  true)

(define
  agt-manual
  (agentic/attach-trace!
    agt-sp
    (get agt-b :genesis)
    (agentic/console-trace
      (list (agentic/trace-entry "console" "spawn log"))
      {:commit (get agt-b :genesis)})))

(agentic-test
  "manual attach to any commit"
  (starts-with? agt-manual "sx1:")
  true)
(agentic-test
  "manual attachment is found"
  (= (agentic/trace-cid-for agt-sp (get agt-b :genesis)) agt-manual)
  true)
(agentic-test
  "attach validates the object type"
  (get
    (agentic/attach-trace!
      agt-sp
      (get agt-b :genesis)
      (agentic/briefing "x" "y" {}))
    :error)
  "not-a-console-trace")

(define
  agt-manual2
  (agentic/attach-trace!
    agt-sp
    (get agt-b :genesis)
    (agentic/console-trace
      (list (agentic/trace-entry "console" "amended log"))
      {:commit (get agt-b :genesis)})))

(agentic-test
  "re-attach rebinds the note ref"
  (= (agentic/trace-cid-for agt-sp (get agt-b :genesis)) agt-manual2)
  true)
(agentic-test
  "rebinding keeps the old object in the store"
  (agentic/console-trace? (git/read agt-repo agt-manual))
  true)

; ---- session-wide view ----
(agentic-test
  "session-traces pairs commits with traces, newest first"
  (=
    (agentic/session-traces agt-sp "tracer-1")
    (list
      (list (get agt-c2 :cid) (get agt-c2 :trace))
      (list (get agt-c1 :cid) (get agt-c1 :trace))))
  true)
(agentic-test
  "session-traces sees manual genesis attachments"
  (=
    (agentic/session-traces agt-sp "quiet-1")
    (list (list (get agt-b :genesis) agt-manual2)))
  true)

; ---- failed commits keep the buffer ----
(agentic/trace! agt-sp "tracer-1" "console" "$ doomed")
(define
  agt-bad
  (agentic/commit-with-trace!
    agt-sp
    "tracer-1"
    "frobnicate"
    {}
    {}))

(agentic-test
  "failed commit passes the error through"
  (get agt-bad :error)
  "unknown-kind")
(agentic-test
  "failed commit keeps the buffer"
  (len (agentic/trace-pending agt-sp "tracer-1"))
  1)

(define
  agt-c4
  (agentic/commit-with-trace!
    agt-sp
    "tracer-1"
    "test"
    (assoc {} "notes.md" "recovered\n")
    {:message "recover"}))

(agentic-test
  "kept entries travel with the next commit"
  (get
    (nth
      (agentic/trace-entries (agentic/trace-for agt-sp (get agt-c4 :cid)))
      0)
    :text)
  "$ doomed")

; ---- binding is agent-chosen: plain commit! leaves the buffer alone ----
(agentic/trace! agt-sp "tracer-1" "console" "$ held back")
(define
  agt-c5
  (agentic/commit!
    agt-sp
    "tracer-1"
    "decision"
    (assoc {} "notes.md" "plain\n")
    {:message "plain"}))

(agentic-test
  "plain commit! binds nothing"
  (agentic/trace-for agt-sp agt-c5)
  nil)
(agentic-test
  "plain commit! leaves the buffer"
  (len (agentic/trace-pending agt-sp "tracer-1"))
  1)