From cb4f3803133d0a9fa3b8abc98460631ae96ea2c9 Mon Sep 17 00:00:00 2001
From: Krzosa Karol <krzosa.karol@gmail.com>
Date: Wed, 24 Jul 2024 14:16:58 +0200
Subject: [PATCH] List files and fix scrolling

---
 src/basic/basic.h                   |  1 +
 src/basic/filesystem.h              |  2 ++
 src/basic/win32.cpp                 | 18 ++++++++++++++++++
 src/text_editor/commands_window.cpp |  2 +-
 src/text_editor/lua_api.cpp         | 20 ++++++++++++++++++++
 src/text_editor/text_editor.cpp     |  5 +++--
 6 files changed, 45 insertions(+), 3 deletions(-)

diff --git a/src/basic/basic.h b/src/basic/basic.h
index ee114c1..61dcfc2 100644
--- a/src/basic/basic.h
+++ b/src/basic/basic.h
@@ -741,6 +741,7 @@ UTF8Iter IterateUTF8Ex(char *data, int64_t len);
 UTF8Iter IterateUTF8(char *data);
 UTF8Iter IterateUTF8(String string);
 
+bool IsAlphabetic(char a);
 #define FmtString(string) (int)(string).len, (string).data
 bool        AreEqual(String a, String b, unsigned ignore_case = false);
 int64_t     CreateWidecharFromChar(wchar_t *buffer, int64_t buffer_size, char *in, int64_t inlen);
diff --git a/src/basic/filesystem.h b/src/basic/filesystem.h
index 3205319..d19e9b8 100644
--- a/src/basic/filesystem.h
+++ b/src/basic/filesystem.h
@@ -31,6 +31,8 @@ String GetExeDir(Allocator allocator);
 bool   FileExists(String path);
 bool   IsDir(String path);
 bool   IsFile(String path);
+String GetWorkingDir(Allocator arena);
+bool   IsAbsolute(String path);
 
 struct Process {
     bool   is_valid;
diff --git a/src/basic/win32.cpp b/src/basic/win32.cpp
index 10a3662..89cd407 100644
--- a/src/basic/win32.cpp
+++ b/src/basic/win32.cpp
@@ -299,3 +299,21 @@ bool IsFile(String path) {
     bool  is_file  = (dwAttrib & FILE_ATTRIBUTE_DIRECTORY) == 0;
     return dwAttrib != INVALID_FILE_ATTRIBUTES && is_file;
 }
+
+String GetWorkingDir(Allocator arena) {
+    wchar_t wbuffer[1024];
+    DWORD   wsize = GetCurrentDirectoryW(Lengthof(wbuffer), wbuffer);
+    Assert(wsize != 0);
+    Assert(wsize < 1022);
+    wbuffer[wsize++] = '/';
+    wbuffer[wsize]   = 0;
+
+    String path = ToString(arena, wbuffer, wsize);
+    NormalizePathInPlace(path);
+    return path;
+}
+
+bool IsAbsolute(String path) {
+    bool result = path.len > 3 && IsAlphabetic(path.data[0]) && path.data[1] == ':' && path.data[2] == '/';
+    return result;
+}
diff --git a/src/text_editor/commands_window.cpp b/src/text_editor/commands_window.cpp
index 6b9741b..17c7eec 100644
--- a/src/text_editor/commands_window.cpp
+++ b/src/text_editor/commands_window.cpp
@@ -447,7 +447,7 @@ void HandleActiveWindowBindings(Window *window) {
         Vec2I  visible_size  = visible_cells * Vec2I{FontCharSpacing, FontLineSpacing};
         Vec2I  rect_size     = GetSize(window->document_rect);
 
-        if (xy.line > visible.max.y - 2) {
+        if (xy.line >= visible.max.y - 2) {
             Int set_view_at_line = xy.line - (visible_cells.y - 1);
             Int cut_off_y        = Max((Int)0, visible_size.y - rect_size.y);
             view.scroll.y        = (set_view_at_line * FontLineSpacing) + cut_off_y;
diff --git a/src/text_editor/lua_api.cpp b/src/text_editor/lua_api.cpp
index 788b49b..b8712f8 100644
--- a/src/text_editor/lua_api.cpp
+++ b/src/text_editor/lua_api.cpp
@@ -9,6 +9,23 @@ int LuaOpenFile(lua_State *L) {
     return 0; // number of results
 }
 
+int LuaListFiles(lua_State *L) {
+    const char *text = luaL_checkstring(L, 1);
+    String      path = text;
+
+    Scratch       scratch;
+    Array<String> strings = {scratch};
+    for (FileIter iter = IterateFiles(scratch, path); IsValid(iter); Advance(&iter)) {
+        if (iter.is_directory) continue;
+        String string = Format(scratch, "open \"%.*s\"", FmtString(iter.absolute_path));
+        Add(&strings, string);
+    }
+
+    String result = Merge(scratch, strings, "\n");
+    lua_pushlstring(LuaState, result.data, result.len);
+    return 1;
+}
+
 int LuaListOpenBuffers(lua_State *L) {
     Scratch       scratch;
     Array<String> strings = {scratch};
@@ -69,6 +86,9 @@ void InitLua() {
 
     lua_pushcfunction(LuaState, LuaListWindows);
     lua_setglobal(LuaState, "list_windows");
+
+    lua_pushcfunction(LuaState, LuaListFiles);
+    lua_setglobal(LuaState, "list_files");
 }
 
 String16 EvalString(Allocator allocator, String16 string16) {
diff --git a/src/text_editor/text_editor.cpp b/src/text_editor/text_editor.cpp
index 21c2250..8c2edf0 100644
--- a/src/text_editor/text_editor.cpp
+++ b/src/text_editor/text_editor.cpp
@@ -31,13 +31,14 @@
 #include "lua_api.cpp"
 
 /*
+- fix pathing in open, make it predictable
+
 - Save file (utf16->utf8)
 - resize windows
 - list files and open
 - file dock on left side
     - We can actually combine this with command window and lua, it's just going to be a buffer of
         - open "asd/asd/asd/asd"
-
 - Ctrl + F
 
 - word completion
@@ -184,7 +185,7 @@ int main(void) {
             CutTop(&screen_rect, size.y * 0.05f);
             CutLeft(&screen_rect, size.x * 0.2f);
             CutRight(&screen_rect, size.x * 0.2f);
-            Rect2 r = CutTop(&screen_rect, FontLineSpacing * 10.f);
+            Rect2 r = CutTop(&screen_rect, FontLineSpacing * 30.f);
 
             Windows[i].z             = 1;
             Windows[i].total_rect    = ToRect2I(r);