MODULE test_demos ;

(*
   m2-GTK4 test - the m2 gtk-demo catalogue and registry (demos/).
   Checks that the full catalogue is present and that ported demos can be
   built and torn down.  Requires a display.
*)

FROM GtkApplication IMPORT gtk_application_new;
FROM Gio IMPORT g_application_run, g_application_quit;
FROM GtkDemo IMPORT Count, NameOf, IsPorted, BuildByName;
FROM DemoCatalog IMPORT DemoCatalogCount, DemoCatalogGet;
FROM GtkUtils IMPORT Connect;
FROM SYSTEM IMPORT ADDRESS, ADR;
FROM libc IMPORT printf;

CONST
   AppId = "org.example.m2gtk4.TestDemos";

VAR
   app: ADDRESS;
   failures: INTEGER;

PROCEDURE StrEqual (a, b: ARRAY OF CHAR) : BOOLEAN;
VAR
   i: CARDINAL;
BEGIN
   i := 0;
   WHILE (a[i] # 0C) AND (b[i] # 0C) DO
      IF a[i] # b[i] THEN RETURN FALSE END;
      INC(i)
   END;
   RETURN a[i] = b[i]
END StrEqual;

PROCEDURE Check (cond: BOOLEAN; msg: ARRAY OF CHAR);
BEGIN
   IF cond THEN
      printf("  ok - %s\n", msg)
   ELSE
      printf("  NOT OK - %s\n", msg);
      INC(failures)
   END
END Check;

(* build a demo once (creates + shows its window), then toggle it off. *)
PROCEDURE BuildAndClose (name: ARRAY OF CHAR);
VAR
   w: ADDRESS;
BEGIN
   w := BuildByName(name, NIL);
   Check(w # NIL, name);
   IF w # NIL THEN w := BuildByName(name, NIL) END
END BuildAndClose;

PROCEDURE OnActivate (application: ADDRESS; data: ADDRESS);
VAR
   name, title, keywords, description: ARRAY [0..511] OF CHAR;
BEGIN
   failures := 0;

   Check(DemoCatalogCount() >= 140, "catalogue has >= 140 demos");
   DemoCatalogGet(0, name, title, keywords, description);
   Check(name[0] # 0C, "catalogue entry 0 has a name");

   Check(Count() >= 5, "registry has >= 5 ported demos");
   NameOf(0, name);
   Check(name[0] # 0C, "registry entry 0 has a name");
   Check(IsPorted("links"), "links is ported");
   Check(IsPorted("aspect_frame") = FALSE, "aspect_frame not ported yet");
   Check(BuildByName("does_not_exist", NIL) = NIL, "unknown demo yields NIL");

   BuildAndClose("links");
   BuildAndClose("listbox");
   BuildAndClose("flowbox");
   BuildAndClose("expander");
   BuildAndClose("css_basics");
   BuildAndClose("spinner");
   BuildAndClose("panes");
   BuildAndClose("overlay");
   BuildAndClose("sizegroup");
   BuildAndClose("fixed2");
   BuildAndClose("layoutmanager");
   BuildAndClose("read_more");
   BuildAndClose("rotated_text");
   BuildAndClose("textmask");
   BuildAndClose("textundo");
   BuildAndClose("headerbar");
   BuildAndClose("infobar");
   BuildAndClose("tabs");
   BuildAndClose("password_entry");
   BuildAndClose("search_entry");
   BuildAndClose("tagged_entry");
   BuildAndClose("combobox");
   BuildAndClose("entry_completion");
   BuildAndClose("entry_undo");
   BuildAndClose("drawingarea");
   BuildAndClose("gestures");

   IF failures = 0 THEN
      printf("test_demos: PASS\n")
   ELSE
      printf("test_demos: FAIL (%d)\n", failures)
   END;
   g_application_quit(application)
END OnActivate;

VAR
   rc: INTEGER;
BEGIN
   failures := 1;
   app := gtk_application_new(AppId, 0);
   IF app = NIL THEN
      printf("test_demos: FAIL (no app)\n");
      HALT(1)
   END;
   Connect(app, "activate", ADR(OnActivate), NIL);
   rc := g_application_run(app, 0, NIL);
   IF failures = 0 THEN HALT(0) ELSE HALT(1) END
END test_demos.