import gleam/list
import gleam/string
import gltoml
import simplifile
import startest
import startest/expect

pub fn main() -> Nil {
  startest.run(startest.default_config())
}

// gleeunit test functions end in `_test`
pub fn files_tests() {
  let assert Ok(test_file) =
    simplifile.read("./toml-test/tests/files-toml-1.1.0")
  let files =
    string.split(test_file, "\n")
    |> list.filter(fn(filename) { string.ends_with(filename, ".toml") })
    // We need to omit the encoding tests because these generally require a different method to
    // load as simplifile doesn't appear to open non-valid utf 8/16 files
    |> list.filter(fn(filename) {
      !string.starts_with(filename, "invalid/encoding")
    })
  files |> list.length |> echo

  list.map(files, fn(filename) {
    startest.it(filename, fn() {
      let toml =
        simplifile.read("./toml-test/tests/" <> filename) |> expect.to_be_ok

      let tom = gltoml.parse(toml)
      case filename {
        "valid/" <> _ -> {
          expect.to_be_ok(tom)
          Nil
        }
        "invalid/" <> _ -> {
          expect.to_be_error(tom)
          Nil
        }
        _ -> Nil
      }
    })
  })
  |> startest.describe("files test", _)
}