#- Copyright (c) 2020 Calvin Rose & contributors
#
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# furnished to do so, subject to the following conditions:
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# The above copyright notice and this permission notice shall be included in
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# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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# IN THE SOFTWARE.

(import ./helper :prefix "" :exit true)
(start-suite 10)

# index-of
(assert (= nil (index-of 10 [])) "index-of 1")
(assert (= nil (index-of 10 [1 2 3])) "index-of 2")
(assert (= 1 (index-of 2 [1 2 3])) "index-of 3")
(assert (= 0 (index-of :a [:a :b :c])) "index-of 4")
(assert (= nil (index-of :a {})) "index-of 5")
(assert (= :a (index-of :A {:a :A :b :B})) "index-of 6")
(assert (= :a (index-of :A @{:a :A :b :B})) "index-of 7")
(assert (= 0 (index-of (chr "a") "abc")) "index-of 8")
(assert (= nil (index-of (chr "a") "")) "index-of 9")
(assert (= nil (index-of 10 @[])) "index-of 10")
(assert (= nil (index-of 10 @[1 2 3])) "index-of 11")

# Regression
(assert (= {:x 10} (|(let [x $] ~{:x ,x}) 10)) "issue 463")

# macex testing
(assert (deep= (macex1 '~{1 2 3 4}) '~{1 2 3 4}) "macex1 qq struct")
(assert (deep= (macex1 '~@{1 2 3 4}) '~@{1 2 3 4}) "macex1 qq table")
(assert (deep= (macex1 '~(1 2 3 4)) '~[1 2 3 4]) "macex1 qq tuple")
(assert (= :brackets (tuple/type (1 (macex1 '~[1 2 3 4])))) "macex1 qq bracket tuple")
(assert (deep= (macex1 '~@[1 2 3 4 ,blah]) '~@[1 2 3 4 ,blah]) "macex1 qq array")

# Cancel test
(def f (fiber/new (fn [&] (yield 1) (yield 2) (yield 3) 4) :yti))
(assert (= 1 (resume f)) "cancel resume 1")
(assert (= 2 (resume f)) "cancel resume 2")
(assert (= :hi (cancel f :hi)) "cancel resume 3")
(assert (= :error (fiber/status f)) "cancel resume 4")

# Curenv
(assert (= (curenv) (curenv 0)) "curenv 1")
(assert (= (table/getproto (curenv)) (curenv 1)) "curenv 2")
(assert (= nil (curenv 1000000)) "curenv 3")
(assert (= root-env (curenv 1)) "curenv 4")

# Import macro test
(assert-no-error "import macro 1" (macex '(import a :as b :fresh maybe)))
(assert (deep= ~(,import* "a" :as "b" :fresh maybe) (macex '(import a :as b :fresh maybe))) "import macro 2")

# #477 walk preserving bracket type
(assert (= :brackets (tuple/type (postwalk identity '[]))) "walk square brackets 1")
(assert (= :brackets (tuple/type (walk identity '[]))) "walk square brackets 2")

# # off by 1 error in inttypes
(assert (= (int/s64 "-0x8000_0000_0000_0000") (+ (int/s64 "0x7FFF_FFFF_FFFF_FFFF") 1)) "int types wrap around")

#
# Longstring indentation
#

(defn reindent
  "Reindent a the contents of a longstring as the Janet parser would.
  This include removing leading and trailing newlines."
  [text indent]

  # Detect minimum indent
  (var rewrite true)
  (each index (string/find-all "\n" text)
    (for i (+ index 1) (+ index indent 1)
      (case (get text i)
        nil (break)
        (chr "\n") (break)
        (chr " ") nil
        (set rewrite false))))

  # Only re-indent if no dedented characters.
  (def str
    (if rewrite
      (peg/replace-all ~(* "\n" (between 0 ,indent " ")) "\n" text)
      text))

  (def first-nl (= (chr "\n") (first str)))
  (def last-nl (= (chr "\n") (last str)))
  (string/slice str (if first-nl 1 0) (if last-nl -2)))

(defn reindent-reference
  "Same as reindent but use parser functionality. Useful for validating conformance."
  [text indent]
  (if (empty? text) (break text))
  (def source-code
    (string (string/repeat " " indent) "``````"
            text
            "``````"))
  (parse source-code))

(var indent-counter 0)
(defn check-indent
  [text indent]
  (++ indent-counter)
  (let [a (reindent text indent)
        b (reindent-reference text indent)]
    (assert (= a b) (string "indent " indent-counter " (indent=" indent ")"))))

(check-indent "" 0)
(check-indent "\n" 0)
(check-indent "\n" 1)
(check-indent "\n\n" 0)
(check-indent "\n\n" 1)
(check-indent "\nHello, world!" 0)
(check-indent "\nHello, world!" 1)
(check-indent "Hello, world!" 0)
(check-indent "Hello, world!" 1)
(check-indent "\n    Hello, world!" 4)
(check-indent "\n    Hello, world!\n" 4)
(check-indent "\n    Hello, world!\n   " 4)
(check-indent "\n    Hello, world!\n    " 4)
(check-indent "\n    Hello, world!\n   dedented text\n    " 4)
(check-indent "\n    Hello, world!\n    indented text\n    " 4)

(end-suite)