rework: removed max preset and made it default as nil instead

lua/Polydev/configs.lua

@@ -8,7 +8,7 @@ M.defaults = {
 	}
     },
     terminal = {
-	preset = "max",
+	preset = nil,
 	border = true,
     }
 }

lua/Polydev/presets.lua

@@ -1,12 +1,17 @@
 local M = {}
 
+---@class padding
+---@field left_padding integer
+---@field right_padding integer
+---@field top_padding integer
+---@field bottom_padding integer
+
+---@class preset_list
+---@field right padding
+---@field corner padding
+
+---@type preset_list
 local presets = {
-    max = {
-	left_padding = 0,
-	right_padding = 0,
-	top_padding = 0,
-	bottom_padding = 0
-    },
     right = {
 	left_padding = 100,
 	right_padding = 0,
@@ -21,16 +26,17 @@ local presets = {
     }
 }
 
+---@param preset string
+---@return table|nil
 function M.getPresets(preset)
-    if preset == "max" then
-	return presets.max
-    elseif preset == "right" then
-	return presets.right
-    elseif preset == "corner" then
-	return presets.corner
+    if presets[preset] ~= nil then
+	return presets[preset]
+    elseif presets[preset] == nil then
+	return nil
     else
 	print("Preset option: " .. preset .. " does not exist")
     end
+    return {}
 end
 
 return M

lua/Polydev/utils.lua

@@ -54,11 +54,23 @@ end
 function M.terminal(cmd)
     local opts = require("Polydev.presets").getPresets(M.opts.preset)
     local ui = vim.api.nvim_list_uis()[1]
+    local width
+    local height
+    local row
+    local col
 
-    local width = math.max(1, math.floor(ui.width * 0.9) - opts.left_padding - opts.right_padding)
-    local height = math.max(1, math.floor(ui.height * 0.9) - opts.top_padding - opts.bottom_padding)
-    local row = math.floor((ui.height - height) / 2) + opts.top_padding
-    local col = math.floor((ui.width - width) / 2) + opts.left_padding
+    if opts ~= nil then
+	width = math.max(1, math.floor(ui.width * 0.9) - opts.left_padding - opts.right_padding)
+	height = math.max(1, math.floor(ui.height * 0.9) - opts.top_padding - opts.bottom_padding)
+	row = math.floor((ui.height - height) / 2) + opts.top_padding
+	col = math.floor((ui.width - width) / 2) + opts.left_padding
+    end
+    if opts == nil then
+	width = math.max(1, math.floor(ui.width * 0.9))
+	height = math.max(1, math.floor(ui.height * 0.9))
+	row = math.floor((ui.height - height) / 2)
+	col = math.floor((ui.width - width) / 2)
+    end
 
     local buf = vim.api.nvim_create_buf(false, true)
     local win = vim.api.nvim_open_win(buf, true, {