local M = {}

function M.get_icon_state()
  local show_icons = vim.g.lua_tree_show_icons or { git = 1, folders = 1, files = 1 }
  local icons = {
    default = "",
    git_icons = {
      unstaged = "✗",
      staged = "✓",
      unmerged = "",
      renamed = "➜",
      untracked = "★"
    },
    folder_icons = {
      default = "",
      open = ""
    }
  }

  local user_icons = vim.g.lua_tree_icons
  if user_icons then
    if user_icons.default then
      icons.default = user_icons.default
    end
    for key, val in pairs(user_icons.git or {}) do
      if icons.git_icons[key] then
        icons.git_icons[key] = val
      end
    end
    for key, val in pairs(user_icons.folder or {}) do
      if icons.folder_icons[key] then
        icons.folder_icons[key] = val
      end
    end
  end

  return {
    show_file_icon = show_icons.files == 1 and vim.g.nvim_web_devicons == 1,
    show_folder_icon = show_icons.folders == 1,
    show_git_icon = show_icons.git == 1,
    icons = icons
  }
end

function M.get_bindings()
  local keybindings = vim.g.lua_tree_bindings or {}
  return {
    edit           = keybindings.edit or '<CR>',
    edit_vsplit    = keybindings.edit_vsplit or '<C-v>',
    edit_split     = keybindings.edit_split or '<C-x>',
    edit_tab       = keybindings.edit_tab or '<C-t>',
    preview        = keybindings.preview or '<Tab>',
    toggle_ignored = keybindings.toggle_ignored or 'I',
    refresh        = keybindings.refresh or 'R',
    cd             = keybindings.cd or '<C-]>',
    create         = keybindings.create or 'a',
    remove         = keybindings.remove or 'd',
    rename         = keybindings.rename or 'r',
    cut            = keybindings.cut or 'x',
    copy           = keybindings.copy or 'c',
    paste          = keybindings.paste or 'p',
    prev_git_item  = keybindings.prev_git_item or '[c',
    next_git_item  = keybindings.next_git_item or ']c',
  }
end

function M.window_options()
  local opts = {}
  opts.winhl = 'EndOfBuffer:LuaTreeEndOfBuffer,Normal:LuaTreeNormal,CursorLine:LuaTreeCursorLine,VertSplit:LuaTreeVertSplit'
  if vim.g.lua_tree_side == 'right' then
    opts.side = 'L'
    opts.open_command = 'h'
    opts.preview_command = 'l'
    opts.split_command = 'nosplitright'
  else
    opts.side = 'H'
    opts.open_command = 'l'
    opts.preview_command = 'h'
    opts.split_command = 'splitright'
  end

  return opts
end

return M