From eb0d091771fa39dcb2a5b4793a1c10abcec0dc5e Mon Sep 17 00:00:00 2001
From: Ekaitz Zarraga <ekaitz@elenq.tech>
Date: Tue, 16 Jan 2024 01:13:39 +0100
Subject: world: organize and layout guile too

---
 main.scm               |  6 ++++++
 world/guile-tty.sld    | 14 ++++++++++++++
 world/tty-commands.scm |  4 ++--
 world/tty-commands.sld |  4 ++--
 world/ui.scm           | 19 +++++++++----------
 world/ui.sld           |  6 +++---
 6 files changed, 36 insertions(+), 17 deletions(-)
 create mode 100644 main.scm
 create mode 100644 world/guile-tty.sld

diff --git a/main.scm b/main.scm
new file mode 100644
index 0000000..9a9a391
--- /dev/null
+++ b/main.scm
@@ -0,0 +1,6 @@
+(cond-expand
+  (chibi (import (world ui)
+                 (scheme small)))
+  (guile (import (world ui))))
+
+(run (command-line))
diff --git a/world/guile-tty.sld b/world/guile-tty.sld
new file mode 100644
index 0000000..5194a61
--- /dev/null
+++ b/world/guile-tty.sld
@@ -0,0 +1,14 @@
+(define-library (world guile-tty)
+  (import (scheme base))
+  (cond-expand
+    (guile (import (system foreign)))
+    (else (error 'not-supported)))
+  (begin
+    (error 'TODO)
+
+    ;; https://www.gnu.org/software/guile//manual/html_node/More-Foreign-Functions.html
+    (define _openpty
+      (foreign-library-function "tcgetattr"
+                                #:return-type int
+                                #:arg-types (list 'int '*)))
+    ))
diff --git a/world/tty-commands.scm b/world/tty-commands.scm
index a5f50db..4ce4212 100644
--- a/world/tty-commands.scm
+++ b/world/tty-commands.scm
@@ -25,9 +25,9 @@
   number respectively. In ttys, cursor starts at 1,1"
   (csi-command! (number->string (+ y 1)) ";" (number->string (+ 1 x)) "H"))
 
-(define (ui-initialize!)
+(define (tui-initialize!)
   (enable-alternate-buffer!)
   (move-cursor! 0 0))
 
-(define (ui-deinitialize!)
+(define (tui-deinitialize!)
   (disable-alternate-buffer!))
diff --git a/world/tty-commands.sld b/world/tty-commands.sld
index 503b6bb..1ec5588 100644
--- a/world/tty-commands.sld
+++ b/world/tty-commands.sld
@@ -1,7 +1,7 @@
 (define-library (world tty-commands)
   (import (scheme base))
-  (export ui-initialize!
-          ui-deinitialize!
+  (export tui-initialize!
+          tui-deinitialize!
           move-cursor!
           erase-screen!)
   (include "tty-commands.scm"))
diff --git a/world/ui.scm b/world/ui.scm
index 40d4e69..757e7dd 100644
--- a/world/ui.scm
+++ b/world/ui.scm
@@ -1,8 +1,5 @@
-
-
-(define (echo-char)
+(define (tui-loop)
   (define table (make-piece-table "hola"))
-  (ui-initialize!)
   (let loop ((char (read-char)))
     (move-cursor! 0 0)
     (cond
@@ -10,11 +7,13 @@
       (else (piece-table-insert! table 4 "hola" 'normal)
             (erase-screen!)
             (write-string (piece-table->string table))
-            (loop (read-char)))))
-  (ui-deinitialize!))
+            (loop (read-char))))))
 
-(define (start arguments)
-  (with-raw-io (current-input-port) echo-char))
+(define (call-with-tui thunk)
+  (dynamic-wind
+    tui-initialize!
+    (lambda () (with-raw-io (current-input-port) thunk))
+    tui-deinitialize!))
 
-;; Extend `with-raw-io` with the initialization functions and just move to a
-;; `with-tui` function that calls the provided thunk in the proper mode
+(define (run arguments)
+  (call-with-tui tui-loop))
diff --git a/world/ui.sld b/world/ui.sld
index 1f2eda9..b59401e 100644
--- a/world/ui.sld
+++ b/world/ui.sld
@@ -4,7 +4,7 @@
           (par piece-table)) ;; Remove the piece table from here later, and move to main
   (cond-expand
     (chibi (import (chibi stty)))
-    (guile (import ()))) ; we fail now, but in the future i can build
-                         ; a simple wrapper around termios
-  (export start)
+    (guile (import (world guile-tty)))) ; we fail now, but in the future i can build
+                                        ; a simple wrapper around termios
+  (export run)
   (include "ui.scm"))
-- 
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