local M = {}

---@type table<'normal'|'visual'|'command'|'insert', vim.api.keyset.highlight>
local default_hls = {
  normal = { link = "MiniIconsAzure" },
  visual = { link = "MiniIconsPurple" },
  command = { link = "MiniIconsOrange" },
  insert = { link = "MiniIconsGrey" },
}

function M.inithls()
  local utils = require("lylla.utils")
  vim.iter(pairs(default_hls)):each(function(mode, defaulthl)
    local name = utils.get_modehl_name(mode)

    local hl = require("lylla.config").get().hls[mode]
    if hl then
      vim.api.nvim_set_hl(0, name, hl)
      return
    end

    if vim.tbl_isempty(vim.api.nvim_get_hl(0, { name = name })) then
      vim.api.nvim_set_hl(0, name, defaulthl)
    end
  end)
end

function M.resethl()
  local utils = require("lylla.utils")
  vim.iter(pairs(default_hls)):each(function(mode, _)
    local name = utils.get_modehl_name(mode)
    vim.api.nvim_set_hl(0, name, {})
  end)
end

function M.init()
  vim.api.nvim_create_autocmd("WinNew", {
    group = vim.api.nvim_create_augroup("lylla:win:new", { clear = true }),
    callback = function()
      local win = vim.api.nvim_get_current_win()
      require("lylla.statusline"):new(win):init()
    end,
  })
  local win = vim.api.nvim_get_current_win()
  require("lylla.statusline"):new(win):init()

  vim.api.nvim_create_autocmd("WinClosed", {
    group = vim.api.nvim_create_augroup("lylla:close", { clear = true }),
    callback = function(ev)
      local stl = require("lylla.statusline").wins[ev.match]
      if stl then
        stl:close()
      end
    end,
  })

  vim.api.nvim_create_autocmd("ColorSchemePre", {
    group = vim.api.nvim_create_augroup("lylla:resethl", { clear = true }),
    callback = function()
      M.resethl()
    end,
  })
  vim.api.nvim_create_autocmd("ColorScheme", {
    group = vim.api.nvim_create_augroup("lylla:inithls", { clear = true }),
    callback = function()
      M.inithls()
    end,
  })
  M.inithls()
end

return M