local M = {}

local telescope = require("telescope.builtin")

-- cache directory checks for great speed
local work_tree_lookup_cache = {}

M.cwd_is_in_git_repo = function()
  local cwd = vim.fn.getcwd()

  if work_tree_lookup_cache[cwd] == nil then
    -- The directory has not been checked
    vim.fn.system("git rev-parse --is-inside-work-tree")
    -- Add the result to our cache
    work_tree_lookup_cache[cwd] = vim.v.shell_error == 0
  end

  return work_tree_lookup_cache[cwd]
end

M.project_files = function()
  local opts = {}

  if M.cwd_is_in_git_repo() then
    telescope.git_files(opts)
  else
    telescope.find_files(opts)
  end
end

return M