refactor(statusline): separate statusline theme

Refactor the statusline module and move the theme to a
separate module.

Update the styling in the mode section.

neovim/lua/statusline/init.lua

@@ -40,32 +40,14 @@ local function setHighlight(str)
   return string.format("%%#%s#", str)
 end
 
+local theme = require("statusline.themes.tokyonight")
+
+local ns = vim.api.nvim_create_namespace("statusline")
+
 function M.output()
-  local palette = {
-    cyan    = "#7dcfff",
-    blue    = "#7aa2f7",
-    magenta = "#bb9af7",
-    black   = "#414868",
-    bg      = "#15161e",
-    none    = "NONE",
-  }
-
-  local statuslineMode        = "StatuslineMode"
-  local statuslineTransparent = "StatuslineTransparent"
-  local statuslineBlueText    = "StatuslineBlueText"
-  local statuslineMagentaText = "StatuslineMagentaText"
-
-  local theme = {
-    [statuslineMode]        = {fg = palette["black"], bg = palette["cyan"], bold = true},
-    [statuslineTransparent] = {bg = palette["none"]},
-    [statuslineBlueText]    = {bg = palette["bg"], fg = palette["blue"], bold = true},
-    [statuslineMagentaText] = {bg = palette["bg"], fg = palette["magenta"], bold = true},
-  }
-
-  local ns = vim.api.nvim_create_namespace("statusline")
   vim.api.nvim__set_hl_ns(ns)
 
-  for name, settings in pairs(theme) do
+  for name, settings in pairs(theme.theme) do
     vim.api.nvim_set_hl(ns, name, settings)
   end
 
@@ -81,21 +63,21 @@ function M.output()
   local percentage  = "[%3p%%] "
 
   return table.concat{
-    setHighlight(statuslineMode),
+    setHighlight(theme.statuslineMode),
     mode,
-    setHighlight(statuslineBlueText),
     separator,
+    setHighlight(theme.statuslineBlueText),
     open_file,
     buf_nr,
     separator,
-    setHighlight(statuslineTransparent),
+    setHighlight(theme.statuslineTransparent),
     right_align,
-    setHighlight(statuslineBlueText),
+    setHighlight(theme.statuslineBlueText),
     separator,
     file_format,
     file_type,
     encoding,
-    setHighlight(statuslineMagentaText),
+    setHighlight(theme.statuslineMagentaText),
     separator,
     line_no,
     percentage,

neovim/lua/statusline/themes/tokyonight.lua

@@ -0,0 +1,23 @@
+local M = {}
+
+local palette = {
+  cyan    = "#7dcfff",
+  blue    = "#7aa2f7",
+  magenta = "#bb9af7",
+  black   = "#15161e",
+  none    = "NONE",
+}
+
+M.statuslineMode        = "StatuslineMode"
+M.statuslineTransparent = "StatuslineTransparent"
+M.statuslineBlueText    = "StatuslineBlueText"
+M.statuslineMagentaText = "StatuslineMagentaText"
+
+M.theme = {
+  [M.statuslineMode]        = {fg = palette["black"], bg = palette["magenta"], bold = true},
+  [M.statuslineTransparent] = {bg = palette["none"]},
+  [M.statuslineBlueText]    = {bg = palette["black"], fg = palette["blue"], bold = true},
+  [M.statuslineMagentaText] = {bg = palette["black"], fg = palette["magenta"], bold = true},
+}
+
+return M