defmodule ExSlop do
  use Credo.Check,
    id: "EXS0000",
    base_priority: :normal,
    category: :custom,
    tags: [:ex_slop],
    explanations: [
      check: """
      Runs the recommended ExSlop checks.
      """
    ]

  @moduledoc """
  Credo checks that catch AI-generated code slop in Elixir.

  Add `{ExSlop, :recommended}` or individual checks to `.credo.exs` — see
  `README.md` for details.
  """

  @core_checks [
    ExSlop.Check.Warning.BlanketRescue,
    ExSlop.Check.Warning.RescueWithoutReraise,
    ExSlop.Check.Warning.RepoAllThenFilter,
    ExSlop.Check.Warning.QueryInEnumMap,
    ExSlop.Check.Warning.GenserverAsKvStore,
    ExSlop.Check.Warning.PathExpandPriv,
    ExSlop.Check.Warning.DualKeyAccess,
    ExSlop.Check.Refactor.FilterNil,
    ExSlop.Check.Refactor.RejectNil,
    ExSlop.Check.Refactor.ReduceAsMap,
    ExSlop.Check.Refactor.MapIntoLiteral,
    ExSlop.Check.Refactor.IdentityPassthrough,
    ExSlop.Check.Refactor.IdentityMap,
    ExSlop.Check.Refactor.CaseTrueFalse,
    ExSlop.Check.Refactor.TryRescueWithSafeAlternative,
    ExSlop.Check.Refactor.WithIdentityElse,
    ExSlop.Check.Refactor.WithIdentityDo,
    ExSlop.Check.Refactor.SortThenReverse,
    ExSlop.Check.Refactor.StringConcatInReduce,
    ExSlop.Check.Refactor.ReduceMapPut,
    ExSlop.Check.Refactor.RedundantBooleanIf,
    ExSlop.Check.Refactor.FlatMapFilter,
    ExSlop.Check.Readability.NarratorDoc,
    ExSlop.Check.Readability.DocFalseOnPublicFunction,
    ExSlop.Check.Readability.BoilerplateDocParams,
    ExSlop.Check.Readability.ObviousComment,
    ExSlop.Check.Readability.StepComment,
    ExSlop.Check.Readability.NarratorComment,
    ExSlop.Check.Readability.UnaliasedModuleUse
  ]

  @high_signal_credence_ports [
    ExSlop.Check.Refactor.RedundantEnumJoinSeparator,
    ExSlop.Check.Refactor.UseMapJoin,
    ExSlop.Check.Refactor.GraphemesLength,
    ExSlop.Check.Refactor.ManualStringReverse,
    ExSlop.Check.Refactor.SortThenAt,
    ExSlop.Check.Refactor.SortForTopK,
    ExSlop.Check.Refactor.ExplicitSumReduce
  ]

  @opt_in_credence_ports [
    ExSlop.Check.Refactor.PreferEnumSlice,
    ExSlop.Check.Refactor.ListFold,
    ExSlop.Check.Refactor.ListLast,
    ExSlop.Check.Refactor.LengthInGuard
  ]

  @recommended_checks [
    ExSlop.Check.Warning.BlanketRescue,
    ExSlop.Check.Warning.RescueWithoutReraise,
    ExSlop.Check.Warning.RepoAllThenFilter,
    ExSlop.Check.Warning.QueryInEnumMap,
    ExSlop.Check.Warning.GenserverAsKvStore,
    ExSlop.Check.Warning.PathExpandPriv,
    ExSlop.Check.Warning.DualKeyAccess,
    ExSlop.Check.Refactor.FilterNil,
    ExSlop.Check.Refactor.RejectNil,
    ExSlop.Check.Refactor.ReduceAsMap,
    ExSlop.Check.Refactor.MapIntoLiteral,
    ExSlop.Check.Refactor.IdentityPassthrough,
    ExSlop.Check.Refactor.IdentityMap,
    ExSlop.Check.Refactor.TryRescueWithSafeAlternative,
    ExSlop.Check.Refactor.WithIdentityElse,
    ExSlop.Check.Refactor.WithIdentityDo,
    ExSlop.Check.Refactor.SortThenReverse,
    ExSlop.Check.Refactor.StringConcatInReduce,
    ExSlop.Check.Refactor.ReduceMapPut,
    ExSlop.Check.Refactor.RedundantBooleanIf,
    ExSlop.Check.Refactor.FlatMapFilter,
    ExSlop.Check.Readability.NarratorDoc,
    ExSlop.Check.Readability.BoilerplateDocParams,
    ExSlop.Check.Readability.NarratorComment,
    ExSlop.Check.Refactor.RedundantEnumJoinSeparator,
    ExSlop.Check.Refactor.GraphemesLength,
    ExSlop.Check.Refactor.ManualStringReverse,
    ExSlop.Check.Refactor.SortThenAt,
    ExSlop.Check.Refactor.SortForTopK,
    ExSlop.Check.Refactor.ExplicitSumReduce
  ]

  @checks @core_checks ++ @high_signal_credence_ports ++ @opt_in_credence_ports

  @doc false
  @impl true
  def run(%SourceFile{} = source_file, :recommended) do
    @recommended_checks
    |> Enum.flat_map(& &1.run(source_file, []))
    |> Enum.uniq_by(&{&1.filename, &1.line_no, &1.check})
  end

  def run(%SourceFile{} = source_file, params) when is_list(params) do
    run(source_file, :recommended)
  end

  def checks, do: @checks
  def recommended_checks, do: @recommended_checks
end