;; lib/host/tests/htmlsx.sx — the pure-SX HTML → SX converter (host/html->sx). Covers text,
;; entities, void/nested tags, attributes, figure/iframe, and an end-to-end import round-trip.

(define host-ht-pass 0)
(define host-ht-fail 0)
(define host-ht-fails (list))
(define host-ht-test
  (fn (name actual expected)
    (if (= actual expected)
      (set! host-ht-pass (+ host-ht-pass 1))
      (begin
        (set! host-ht-fail (+ host-ht-fail 1))
        (append! host-ht-fails {:name name :actual actual :expected expected})))))

;; a paragraph with inline formatting — kept nested (decompose flattens to text later).
(host-ht-test "a <p> with inline <strong> parses to (p \"…\" (strong \"…\") \"…\")"
  (str (host/html->sx "<p>Hello <strong>world</strong> now</p>"))
  "(article (p \"Hello \" (strong \"world\") \" now\"))")
;; HTML entities decode to UTF-8 (not \\uXXXX).
(host-ht-test "entities decode (&amp; &pound; &#x2019;)"
  (str (host/html->sx "<p>Tom &amp; Jerry cost &pound;5 &#x2019;n up</p>"))
  "(article (p \"Tom & Jerry cost £5 ’n up\"))")
;; a void <img> keeps its attributes as keyword attrs.
(host-ht-test "a void <img> keeps :src/:alt attrs"
  (str (host/html->sx "<img src=\"a.jpg\" alt=\"a photo\">"))
  "(article (img :alt \"a photo\" :src \"a.jpg\"))")
;; a <figure> with an <img> + <figcaption> nests correctly.
(host-ht-test "a <figure> nests an <img> and a <figcaption>"
  (str (host/html->sx "<figure><img src=\"y.jpg\" alt=\"y\"><figcaption>a caption</figcaption></figure>"))
  "(article (figure (img :alt \"y\" :src \"y.jpg\") (figcaption \"a caption\")))")
;; an <iframe> is a void-ish embed (self-contained token).
(host-ht-test "an <iframe> becomes a leaf with its :src"
  (str (host/html->sx "<iframe src=\"https://youtube.com/embed/x\"></iframe>"))
  "(article (iframe :src \"https://youtube.com/embed/x\"))")
;; comments + doctype are skipped; whitespace-only text is dropped.
(host-ht-test "comments/doctype are skipped, blank text dropped"
  (str (host/html->sx "<!-- hi --> <p>x</p>\n  <p>y</p>"))
  "(article (p \"x\") (p \"y\"))")
;; headings map through (decompose then turns h2 into card-heading).
(host-ht-test "headings + paragraphs come through in order"
  (str (host/html->sx "<h2>Title</h2><p>body</p>"))
  "(article (h2 \"Title\") (p \"body\"))")

;; ── END TO END: HTML → SX → decompose → typed card objects ──────────
(host/blog-use-store! (persist/open))
(host/blog-seed-types!)
(host-ht-test "html->sx feeds decompose: a real snippet becomes typed cards"
  (begin
    (host/blog-put! "htdoc" "HT" "(p)" "published")
    (host/blog--decompose! "htdoc"
      (host/html->sx "<h2>Heading</h2><p>Some <strong>bold</strong> text.</p><figure><img src=\"p.jpg\" alt=\"a\"><figcaption>cap</figcaption></figure><iframe src=\"https://youtube.com/embed/z\"></iframe>"))
    (list (host/blog-is-a? "htdoc__body__b0" "card-heading")
          (host/blog-is-a? "htdoc__body__b1" "card-text")
          (get (host/blog-field-values-of "htdoc__body__b1") "text")   ;; strong flattened to text
          (host/blog-is-a? "htdoc__body__b2" "card-image")
          (get (host/blog-field-values-of "htdoc__body__b2") "caption")
          (host/blog-is-a? "htdoc__body__b3" "card-embed")))
  (list true true "Some bold text." true "cap" true))

(define host-ht-tests-run!
  (fn ()
    {:total (+ host-ht-pass host-ht-fail)
     :passed host-ht-pass :failed host-ht-fail :fails host-ht-fails}))