local M = {}
local ts = vim.treesitter

--- Lists the parsers currently installed
---
---@return string[] list of parser files
function M.list_parsers()
  return vim.api.nvim_get_runtime_file('parser/*', true)
end

--- Performs a healthcheck for treesitter integration
function M.check()
  local report_info = vim.fn['health#report_info']
  local report_ok = vim.fn['health#report_ok']
  local report_error = vim.fn['health#report_error']
  local parsers = M.list_parsers()

  report_info(string.format('Runtime ABI version : %d', ts.language_version))

  for _, parser in pairs(parsers) do
    local parsername = vim.fn.fnamemodify(parser, ':t:r')

    local is_loadable, ret = pcall(ts.language.require_language, parsername)

    if not is_loadable then
      report_error(string.format('Impossible to load parser for %s: %s', parsername, ret))
    elseif ret then
      local lang = ts.language.inspect_language(parsername)
      report_ok(
        string.format('Loaded parser for %s: ABI version %d', parsername, lang._abi_version)
      )
    else
      report_error(string.format('Unable to load parser for %s', parsername))
    end
  end
end

return M