feat: add 'location' config option

lua/opencode.lua

@@ -21,6 +21,14 @@ local state = {
 
 local config = {
   width = 0.3,
+  location = "right",
+}
+
+local valid_locations = {
+  left = true,
+  right = true,
+  top = true,
+  bottom = true,
 }
 
 local function is_valid_window(win)
@@ -35,10 +43,28 @@ local function terminal_width()
   return math.max(1, math.floor(vim.o.columns * config.width))
 end
 
-local function open_side_window()
-  vim.cmd("botright vertical " .. terminal_width() .. "new")
+local function terminal_height()
+  return math.max(1, math.floor(vim.o.lines * config.width))
+end
+
+local function open_terminal_window()
+  if config.location == "left" then
+    vim.cmd("topleft vertical " .. terminal_width() .. "new")
+  elseif config.location == "right" then
+    vim.cmd("botright vertical " .. terminal_width() .. "new")
+  elseif config.location == "top" then
+    vim.cmd("topleft " .. terminal_height() .. "new")
+  else
+    vim.cmd("botright " .. terminal_height() .. "new")
+  end
+
   state.win = vim.api.nvim_get_current_win()
-  vim.api.nvim_set_option_value("winfixwidth", true, { win = state.win })
+
+  if config.location == "left" or config.location == "right" then
+    vim.api.nvim_set_option_value("winfixwidth", true, { win = state.win })
+  else
+    vim.api.nvim_set_option_value("winfixheight", true, { win = state.win })
+  end
 end
 
 local function start_terminal()
@@ -62,7 +88,7 @@ function M.toggle()
     return
   end
 
-  open_side_window()
+  open_terminal_window()
 
   if is_valid_buffer(state.buf) then
     vim.api.nvim_win_set_buf(state.win, state.buf)
@@ -85,6 +111,15 @@ function M.setup(opts)
     config.width = opts.width
   end
 
+  if opts.location ~= nil then
+    assert(
+      type(opts.location) == "string" and valid_locations[opts.location],
+      "opencode.nvim: location must be one of: left, right, top, bottom"
+    )
+
+    config.location = opts.location
+  end
+
   vim.api.nvim_create_user_command("OpenCodeToggle", function()
     M.toggle()
   end, { force = true })