nvim: restore indent-blankline plugin and setup colors

.config/nvim/lua/nise/theme.lua

@@ -1,6 +1,18 @@
 local M = {}
 
-local function switch_to_theme(theme_name)
+local catppuccin_palette = require('catppuccin.palettes')
+
+local function switch_to_theme(theme_name, indent_theme_builder)
+  local hooks = require "ibl.hooks"
+  hooks.clear_all()
+  hooks.register(hooks.type.HIGHLIGHT_SETUP, function()
+    local indent_theme = indent_theme_builder()
+    vim.api.nvim_set_hl(0, "IblScope", { fg = indent_theme.scope_color })
+    vim.api.nvim_set_hl(0, "IblWhitespace", { fg = indent_theme.whitespace_color })
+  end)
+
+  require("ibl").setup { indent = { char = '│' } }
+
   vim.cmd.colorscheme(theme_name)
 
   require 'lualine'.setup {
@@ -24,16 +36,23 @@ local function switch_to_theme(theme_name)
 end
 
 local function init_catppuccin()
-  switch_to_theme('catppuccin-macchiato')
-
-  -- local bg0 = require('nightfox.palette.dayfox').palette.bg0
-  -- vim.cmd(string.format("highlight IndentBlanklineIndent1 guifg=%s gui=nocombine", bg0))
+  switch_to_theme('catppuccin-macchiato', function()
+    local palette = catppuccin_palette.get_palette()
+    return {
+      scope_color = palette.subtext0,
+      whitespace_color = palette.surface0
+    }
+  end)
 end
 
 local function init_dayfox()
-  switch_to_theme('dayfox')
-  -- local bg0 = require('nightfox.palette.dayfox').palette.bg0
-  -- vim.cmd(string.format("highlight IndentBlanklineIndent1 guifg=%s gui=nocombine", bg0))
+  switch_to_theme('dayfox', function()
+    local palette = require('nightfox.palette.dayfox').palette
+    return {
+      scope_color = palette.fg1,
+      whitespace_color = palette.bg2
+    }
+  end)
 end
 
 function M.toggle()
@@ -47,8 +66,9 @@ function M.toggle()
 end
 
 function M.setup()
-  local theme = "catppuccin-macchiato"
-  switch_to_theme(theme)
+  vim.opt.list = true
+  vim.opt.listchars:append "space:·,trail: "
+  init_catppuccin()
 end
 
 return M