;;~ title    "Spot a trend in my shop"
;;~ author   "lacuna"
;;~ version  1
;;~ mode     automation
;;~ flavor   light-purple
;;~ id       spot-trend-in-my-shop
;;~ touches  ()
;;~ summary  "Find an emerging pattern across listings + receipts."

;; Find an emerging pattern across listings + receipts.
;;
;; Multi-step reasoning cart. precondition_fetch pulls the
;; needed shop facts, then escalates the reasoning step to
;; Sonnet via sakura/cloud-reason. Cloud is gated; we ask
;; consent before the relay if the operator hasn't pre-approved.

(cart 'spot-trend-in-my-shop
  '((author    . "lacuna")
    (version   . 1)
    (read-only . #t)))

(define (start ctx)
  (next 'fetch ctx))

(define (fetch ctx)
  (act 'etsy/listings (list 'active) 'check-fetch))

(define (check-fetch ctx)
  (let ((r (ctx-result ctx)))
    (cond
      ((null? r)                       (escalate 'no-data null))
      ((eq? r 'rate-limited)           (after 30 'fetch ctx))
      (else                            (next 'reason (ctx-set 'facts r ctx))))))

(define (reason ctx)
  (let ((facts (ctx-get 'facts ctx)))
    (act 'sakura/cloud-reason
         (list 'task 'spot-trend-in-my-shop facts)
         'check-reason)))

(define (check-reason ctx)
  (let ((r (ctx-result ctx)))
    (cond
      ((null? r)                       (escalate 'cloud-empty null))
      ((not (string? r))               (escalate 'cloud-garbled null))
      ((eq? r 'cloud-quota-exhausted)  (escalate 'cloud-quota null))
      ((eq? r 'cloud-consent-required) (escalate 'cloud-consent null))
      (else                            (next 'announce (ctx-set 'narrative r ctx))))))

(define (announce ctx) (done))