From c353004717da1ef7ba8be6e9a3ce10002c7d6d66 Mon Sep 17 00:00:00 2001
From: Holden Rohrer <hr@hrhr.dev>
Date: Sun, 8 Aug 2021 12:55:47 -0400
Subject: set up save and load w/o writes and reads

---
 source/app.d | 133 +++++++++++++++++++++++++++++++++++++++++++++++++++++++++--
 1 file changed, 129 insertions(+), 4 deletions(-)

diff --git a/source/app.d b/source/app.d
index 4006188..943b9d0 100644
--- a/source/app.d
+++ b/source/app.d
@@ -4,6 +4,7 @@ import core.stdc.locale;
 import std.format;
 import board;
 import spots;
+import std.stdio;
 
 void main()
 {
@@ -19,10 +20,6 @@ void main()
     scrollok(stdscr, true); // allows scrolling in up/down arrows
     nonl(); // "return" goes through input
 
-    int x;
-    int y;
-    getmaxyx(stdscr, y, x);
-
     auto overlay = new OverlaySource(new RandomSource());
     auto board = new Board(overlay);
     auto disp = new BoardDisplay(board, stdscr);
@@ -73,8 +70,136 @@ void main()
             break;
         case 'q':
             break outer;
+        case 's':
+            auto filename = stdscr.readquery("Save:");
+            try
+            {
+                auto file = File(filename, "wb");
+
+            }
+            catch (ErrnoException e)
+            {
+            }
+            disp.print();
+            break;
+        case 'l':
+            auto filename = stdscr.readquery("Load:");
+            try
+            {
+                auto file = File(filename);
+            }
+            catch (ErrnoException e)
+            {
+            }
+            disp.print();
+            break;
         default:
             continue;
         }
     }
 }
+
+import std.range.interfaces : InputRange;
+
+class Reader : InputRange!char
+{
+
+    private int _front;
+    private bool _empty;
+    // Might could be implemented with a larger getnstr
+
+    this()
+    {
+        _front = getch();
+    }
+
+    char moveFront()
+    in
+    {
+        assert(!_empty);
+    }
+    do
+    {
+        auto ret = front();
+        popFront();
+        return ret;
+    }
+
+    @property char front()
+    in
+    {
+        assert(!_empty);
+    }
+    do
+    {
+        return cast(char) _front;
+    }
+
+    void popFront()
+    in
+    {
+        assert(!_empty);
+    }
+    do
+    {
+        _front = getch();
+        if (_front == -1)
+            _empty = true;
+    }
+
+    @property bool empty()
+    {
+        return _empty;
+    }
+
+    int opApply(scope int delegate(char) run)
+    {
+        for (; !_empty; popFront())
+        {
+            if (run(front()))
+                return 1;
+        }
+
+        return 0;
+    }
+
+    int opApply(scope int delegate(size_t, char) run)
+    {
+        for (size_t i = 0; !_empty; popFront(), i++)
+        {
+            if (run(i, front()))
+                return 1;
+        }
+        return 0;
+    }
+}
+
+string readquery(WINDOW* stdscr, string query)
+{
+    import std.range : replicate;
+    import std.conv : to;
+    import std.array : appender;
+
+    int height;
+    int width;
+    getmaxyx(stdscr, height, width);
+
+    mvprintw(height, 0, toStringz(query ~ " ".replicate(width - query.length)));
+    move(height, cast(int) query.length + 1);
+
+    echo();
+    scrollok(stdscr, false);
+    auto build = appender!string;
+
+    auto reader = new Reader();
+
+    while (!reader.empty && reader.front != '\r')
+    {
+        build ~= reader.front;
+        reader.popFront;
+    }
+    noecho();
+    scrollok(stdscr, true);
+
+    return build.data;
+}
-- 
cgit