;; ============================================================
;; tests.lsp - Test- und Hilfsfunktionen
;; ============================================================

(defun c:CALLPYTHON ( / log-pfad py-skript return-datei cmd fh zeile)
  (setq log-pfad (getenv "DXFM_LOG"))
  (setq py-skript (strcat (getenv "DXFM_LIB") "\\testpycall.py"))
  (setq return-datei (strcat log-pfad "\\testpycall_return.txt"))
  (if (findfile py-skript)
    (progn
      (setq cmd (strcat "python \"" py-skript "\" \"" log-pfad "\""))
      (command "_.SHELL" cmd)
      (if (findfile return-datei)
        (progn
          (setq fh (open return-datei "r"))
          (setq zeile (read-line fh))
          (close fh)
          (princ (strcat "\n[SSG_LIB] Python Rueckgabe: " zeile))
        )
        (princ "\n[SSG_LIB] WARNUNG: Keine Rueckgabe von Python erhalten.")
      )
    )
    (princ (strcat "\n[SSG_LIB] FEHLER: " py-skript " nicht gefunden!"))
  )
  (princ)
)

;; ============================================================
;; EXPORT - Relevante INSERT-Entities sammeln und als JSON exportieren
;; Anschliessend Python-Skript aufrufen fuer CSV-Erzeugung
;; ============================================================

;; --- String fuer JSON escapen (Anfuehrungszeichen/Backslash) ---
;; Nutzt vl-string-subst fuer die haeufigsten Faelle statt
;; zeichenweiser Verkettung (deutlich schneller bei langen Strings).
(defun csv:json-escape (s)
  (setq s (vl-string-subst "\\\\" "\\" s))
  (vl-string-subst "\\\"" "\"" s)
)

;; --- Attribute eines INSERT-Blocks als JSON-Objekt lesen ---
;; ename = Entity-Name des INSERT
;; Rueckgabe: String wie {"TAG1":"Wert1","TAG2":"Wert2"}
(defun csv:read-attribs (ename / obj ed typ tag wert parts)
  (setq obj (entnext ename))
  (setq parts nil)
  (while obj
    (setq ed (entget obj))
    (setq typ (cdr (assoc 0 ed)))
    (if (equal typ "SEQEND") (setq obj nil)
      (progn
        (if (equal typ "ATTRIB")
          (setq parts (cons (strcat "\"" (csv:json-escape (cdr (assoc 2 ed)))
                                    "\":\"" (csv:json-escape (cdr (assoc 1 ed))) "\"")
                            parts))
        )
        (setq obj (entnext obj))
      )
    )
  )
  (if parts
    (progn
      (setq parts (reverse parts))
      (strcat "{" (car parts)
              (apply 'strcat (mapcar '(lambda (p) (strcat "," p)) (cdr parts)))
              "}")
    )
    "{}"
  )
)

;; --- Einen INSERT-Block als JSON-Objekt schreiben ---
(defun csv:block-to-json (ename / ed blk-name layer pt rotation handle attribs)
  (setq ed (entget ename))
  (setq blk-name  (cdr (assoc 2 ed)))
  (setq layer     (cdr (assoc 8 ed)))
  (setq pt        (cdr (assoc 10 ed)))
  (setq rotation  (cdr (assoc 50 ed)))
  (setq handle    (cdr (assoc 5 ed)))
  (if (null rotation) (setq rotation 0.0))
  (if (cdr (assoc 66 ed))
    (setq attribs (csv:read-attribs ename))
    (setq attribs "{}")
  )
  (strcat
    "  {\"block_name\":\"" (csv:json-escape blk-name) "\""
    ",\"layer\":\"" (csv:json-escape layer) "\""
    ",\"handle\":\"" (csv:json-escape handle) "\""
    ",\"x\":" (rtos (car pt) 2 4)
    ",\"y\":" (rtos (cadr pt) 2 4)
    ",\"z\":" (rtos (if (caddr pt) (caddr pt) 0.0) 2 4)
    ",\"rotation\":" (rtos (* (/ rotation pi) 180.0) 2 4)
    ",\"attribs\":" attribs
    "}"
  )
)

;; --- Relevante Bloecke sammeln ---
;; Filtert INSERT-Entities auf exportierbare Bloecke:
;;   KR_*     = Kreisel Compound-Bloecke
;;   AP110*   = Omniflo Geraden
;;   Omniflo Boegen/Weichen = rein numerische Blocknamen (SivasNr)
;;   Vario*   = VarioFoerderer-Bloecke
;; Gibt Auswahlsatz zurueck oder nil.
(defun csv:collect-export-blocks ( / ss-all ss-out i ename ed bname)
  (setq ss-all (ssget "X" (list (cons 0 "INSERT"))))
  (if (null ss-all) (setq ss-out nil)
    (progn
      (setq ss-out (ssadd))
      (setq i 0)
      (while (setq ename (ssname ss-all i))
        (setq ed (entget ename))
        (setq bname (cdr (assoc 2 ed)))
        (if (or
              (wcmatch bname "KR_*")
              (wcmatch (strcase bname) "AP110*,AP_110*")
              (wcmatch bname "Vario*,Staustrecke*,AUS_Element*,EIN_Element*")
              ;; Rein numerische Namen = Omniflo SivasNr (Boegen/Weichen)
              (wcmatch bname "#*")
            )
          (ssadd ename ss-out)
        )
        (setq i (1+ i))
      )
      (if (= (sslength ss-out) 0) (setq ss-out nil))
    )
  )
  ss-out
)

;; --- Gemeinsame Export-Funktion ---
;; Sammelt relevante Bloecke, schreibt JSON, ruft Python auf.
;; label       = Anzeigename (z.B. "EXPORTCSV")
;; py-name     = Python-Skript-Name (z.B. "export_csv.py")
;; csv-name    = Ergebnis-CSV-Name (z.B. "export.csv")
(defun csv:run-export (label py-name csv-name / ss i ename fh out-pfad
                        py-skript ergebnis-pfad cmd first-block count)
  (princ (strcat "\n[" label "] Sammle relevante Bloecke..."))

  (setq ss (csv:collect-export-blocks))
  (if (null ss)
    (progn
      (princ (strcat "\n[" label "] Keine relevanten Bloecke gefunden."))
      (princ)
    )
    (progn
      (setq count (sslength ss))
      (princ (strcat "\n[" label "] " (itoa count) " Bloecke gefunden."))

      ;; JSON-Datei zusammenbauen
      (setq out-pfad (strcat (getenv "DXFM_RESULTS") "/export_raw.json"))
      (setq fh (open out-pfad "w"))
      (if (null fh)
        (progn
          (princ (strcat "\n[" label "] FEHLER: Kann Datei nicht oeffnen: " out-pfad))
          (princ)
        )
        (progn
          (write-line "[" fh)
          (setq i 0)
          (setq first-block T)
          (while (setq ename (ssname ss i))
            (if (not first-block)
              (write-line "," fh)
            )
            (write-line (csv:block-to-json ename) fh)
            (setq first-block nil)
            (setq i (1+ i))
          )
          (write-line "]" fh)
          (close fh)
          (princ (strcat "\n[" label "] JSON geschrieben: " out-pfad))

          ;; Python-Skript aufrufen
          (setq py-skript (strcat (getenv "DXFM_LIB") "/" py-name))
          (if (findfile py-skript)
            (progn
              (setq ergebnis-pfad (strcat (getenv "DXFM_RESULTS") "/" csv-name))
              (setq cmd (strcat "python \"" py-skript "\""
                                " \"" out-pfad "\""
                                " \"" (getenv "DXFM_DATA") "\""
                                " \"" ergebnis-pfad "\""))
              (princ (strcat "\n[" label "] Rufe Python auf..."))
              (startapp "cmd" (strcat "/c " cmd))
              (princ (strcat "\n[" label "] Export gestartet: " ergebnis-pfad))
            )
            (princ (strcat "\n[" label "] FEHLER: Python-Skript nicht gefunden: " py-skript))
          )
        )
      )
    )
  )
  (princ)
)

;; --- EXPORTSIVAS: Sivas-spezifischer CSV-Export mit Summierungszeilen ---
(defun c:EXPORTSIVAS ()
  (csv:run-export "EXPORTSIVAS" "export_sivas.py" "export_sivas.csv")
)

;; --- EXPORTCSV: Einfache Item-Liste aller Bloecke (ohne Summierung) ---
(defun c:EXPORTCSV ()
  (csv:run-export "EXPORTCSV" "export_csv.py" "export.csv")
)