;; ============================================================
;; export.lsp - Export-Funktionen fuer INSERT-Bloecke
;;
;; Enthaelt:
;;   - JSON-Sammler (csv:collect-export-blocks, csv:run-export)
;;   - Python-basierter Export: EXPORTSIVAS, EXPORTCSV
;;
;; Alle Blockname-Muster und Datei-/Skriptnamen dieses Moduls sind
;; zentral in cfg/export.cfg (INI-Style, Abschnitte [blockpattern]
;; und [filenames]) deklariert und werden beim Laden des Moduls
;; einmalig eingelesen (export:load-cfg).
;; ============================================================


;; --- Export-Konfiguration aus cfg/export.cfg laden ---
;; Nutzt den zentralen INI-Parser aus ssg_core.lsp (ssg-load-ini / ssg-ini-get /
;; ssg-ini-list), damit fuer alle Module derselbe .cfg-Standard gilt.
(defun export:load-cfg ( / cfg-pfad)
  (setq cfg-pfad (strcat (getenv "DXFM_CFG") "/export.cfg"))
  (setq *export-cfg* (ssg-load-ini cfg-pfad))
  (if (null *export-cfg*)
    (princ (strcat "\n[export] WARNUNG: " cfg-pfad " nicht gefunden/leer, verwende Vorgaben."))
  )
  (princ)
)

;; --- Einzelwert aus *export-cfg* lesen, mit Fallback ---
;; section = "blockpattern" oder "filenames"
(defun export:cfg (section key default)
  (ssg-ini-get *export-cfg* section key default)
)

;; --- Muster aus [blockpattern] als normalisierter wcmatch-String ---
;; key         = Config-Key, z.B. "pattern_kreisel"
;; default-str = Fallback-Wert als kommagetrennter String, falls Config fehlt
;; Rueckgabe: kommagetrennter String ohne Leerzeichen, z.B. "KR_*,KREISEL_*"
(defun export:pattern (key default-str)
  (ssg-ini-list *export-cfg* "blockpattern" key default-str)
)

;; Beim Laden des Moduls einmalig einlesen (Lazy-Loading via ssg-ensure "export")
(export:load-cfg)


;; --- String fuer JSON escapen (Anfuehrungszeichen/Backslash) ---
;; Konvertiert nicht-String-Werte (z.B. T, nil, Zahlen) defensiv in String.
(defun csv:json-escape (s)
  (if (not (= (type s) 'STR))
    (setq s (if s (vl-princ-to-string 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
;;   GF_*     = Gefaellestrecke Compound-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 (export:pattern "pattern_kreisel" "KR_*,KREISEL_*,ECKRAD_*"))
              (wcmatch (strcase bname) (export:pattern "pattern_gerade" "AP110*,AP_110*"))
              (wcmatch bname (export:pattern "pattern_strecke"
                "Vario*,Staustrecke*,AUS_Element*,EIN_Element*,VF_*,GF_*"))
              ;; Rein numerische Namen = Omniflo SivasNr (Boegen/Weichen)
              (wcmatch bname (export:pattern "pattern_numerisch" "#*"))
            )
          (ssadd ename ss-out)
        )
        (setq i (1+ i))
      )
      (if (= (sslength ss-out) 0) (setq ss-out nil))
    )
  )
  ss-out
)


;; --- HOEHE/DREHUNG aller Omniflo-Elemente still aktualisieren ---
;; Wird automatisch vor jedem Export aufgerufen.
(defun omni:update-all-attribs ( / ss i ename ed bname teileart)
  (setq ss (ssget "X" (list (cons 0 "INSERT"))))
  (if ss
    (progn
      (setq i 0)
      (while (setq ename (ssname ss i))
        (setq ed (entget ename))
        (setq bname (cdr (assoc 2 ed)))
        (setq teileart (csv:get-attrib ename "TEILEART"))
        (if (or teileart
                (wcmatch (strcase bname) (export:pattern "pattern_gerade" "AP110*,AP_110*")))
          (progn
            (omni:set-hoehe-attrib ename)
            (omni:set-drehung-attrib ename)
          )
        )
        (setq i (1+ i))
      )
    )
  )
)


;; --- 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)
  ;; Vor dem Export: IDs aller Bloecke sicherstellen und Duplikate korrigieren
  (princ (strcat "\n[" label "] Pruefe und vergebe IDs..."))
  (ssg-id-check-all)
  ;; Vor dem Export HOEHE/DREHUNG aller Omniflo-Elemente aktualisieren
  (princ (strcat "\n[" label "] Aktualisiere Hoehe/Drehung..."))
  (omni:update-all-attribs)
  (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:cfg "filenames" "raw_json_datei" "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 (export:cfg "filenames" "python_exe" "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:cfg "filenames" "sivas_script" "export_sivas.py")
    (export:cfg "filenames" "sivas_csv"    "export_sivas.csv"))
)

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


;; ============================================================
;; OMNIFLO HOEHE/DREHUNG AKTUALISIEREN
;; ============================================================

;; --- Attribut-Wert eines INSERT-Blocks nach Tag lesen ---
(defun csv:get-attrib (ename tag / obj ed typ atag)
  (setq obj (entnext ename))
  (while obj
    (setq ed (entget obj))
    (setq typ (cdr (assoc 0 ed)))
    (if (equal typ "SEQEND")
      (setq obj nil)
      (progn
        (if (and (equal typ "ATTRIB")
                 (= (strcase (cdr (assoc 2 ed))) (strcase tag)))
          (progn (setq obj nil) (setq atag (cdr (assoc 1 ed))))
          (setq obj (entnext obj))
        )
      )
    )
  )
  atag
)

;; --- Hoehe eines Omniflo-Blocks aus der Zeichnung ermitteln ---
;; Liest z-Koordinate des Einfuegepunkts.
;; Falls der Block KS_EIN, KS_AUS oder K1-K4 enthaelt,
;; wird die minimale Z-Koordinate dieser Unterelemente + Block-Z verwendet.
(defun omni:get-block-hoehe (ename / ed bname pt z-insert blk-tbl sub-ent sub-ed sub-bname sub-pt z-list z-min)
  (setq ed (entget ename))
  (setq bname (cdr (assoc 2 ed)))
  (setq pt (cdr (assoc 10 ed)))
  (setq z-insert (if (caddr pt) (caddr pt) 0.0))
  (setq blk-tbl (tblsearch "BLOCK" bname))
  (if (null blk-tbl)
    z-insert
    (progn
      (setq sub-ent (entnext (cdr (assoc -2 blk-tbl))))
      (setq z-list nil)
      (while sub-ent
        (setq sub-ed (entget sub-ent))
        (if (= (cdr (assoc 0 sub-ed)) "INSERT")
          (progn
            (setq sub-bname (strcase (cdr (assoc 2 sub-ed))))
            (if (wcmatch sub-bname
                  (export:pattern "pattern_ks_subblocks" "KS_EIN,KS_AUS,K1,K2,K3,K4"))
              (progn
                (setq sub-pt (cdr (assoc 10 sub-ed)))
                (setq z-list (cons (if (caddr sub-pt) (caddr sub-pt) 0.0) z-list))
              )
            )
          )
        )
        (setq sub-ent (entnext sub-ent))
      )
      (if z-list
        (progn
          (setq z-min (car z-list))
          (foreach z (cdr z-list)
            (if (< z z-min) (setq z-min z))
          )
          (+ z-insert z-min)
        )
        z-insert
      )
    )
  )
)


;; --- HOEHE-Attribut eines Omniflo-Blocks setzen ---
;; Liest Z-Koordinate (ggf. aus KS-Unterblock) und schreibt als HOEHE-Attribut.
(defun omni:set-hoehe-attrib (ename / hoehe)
  (setq hoehe (omni:get-block-hoehe ename))
  (ssg-attrib-set-on ename (list (cons "HOEHE" (rtos hoehe 2 1))))
  hoehe
)


;; --- DREHUNG-Attribut eines Omniflo-Blocks setzen ---
;; Liest CAD-Rotationswinkel (Gruppe 50, Bogenmass) und schreibt als DREHUNG-Attribut.
(defun omni:set-drehung-attrib (ename / ed rotation deg)
  (setq ed (entget ename))
  (setq rotation (cdr (assoc 50 ed)))
  (if (null rotation) (setq rotation 0.0))
  (setq deg (* (/ rotation pi) 180.0))
  (ssg-attrib-set-on ename (list (cons "DREHUNG" (rtos deg 2 1))))
  deg
)


;; ============================================================
;; C:OMNI_UPDATE_ATTRIBS - HOEHE und DREHUNG aller Omniflo-Elemente aktualisieren
;; Setzt HOEHE aus Z-Koordinate (bzw. min. KS-Sub-Block) und
;; DREHUNG aus CAD-Rotationswinkel fuer alle Bloecke mit TEILEART-Attribut.
;; ============================================================
(defun c:OMNI_UPDATE_ATTRIBS ( / ss i ename ed bname teileart count)
  (setq ss (ssget "X" (list (cons 0 "INSERT"))))
  (if (null ss)
    (princ "\n[OMNI_UPDATE] Keine INSERT-Bloecke in der Zeichnung.")
    (progn
      (setq count 0)
      (setq i 0)
      (while (setq ename (ssname ss i))
        (setq ed (entget ename))
        (setq bname (cdr (assoc 2 ed)))
        ;; Nur Omniflo-Elemente (erkennbar an TEILEART-Attribut oder AP110-Blockname)
        (setq teileart (csv:get-attrib ename "TEILEART"))
        (if (or teileart
                (wcmatch (strcase bname) (export:pattern "pattern_gerade" "AP110*,AP_110*")))
          (progn
            (omni:set-hoehe-attrib ename)
            (omni:set-drehung-attrib ename)
            (setq count (1+ count))
          )
        )
        (setq i (1+ i))
      )
      (princ (strcat "\n[OMNI_UPDATE] " (itoa count) " Elemente aktualisiert (HOEHE, DREHUNG)."))
    )
  )
  (princ)
)