%%%-------------------------------------------------------------------
%%% @doc Тесты административного API для управления бан-словами.
%%%
%%% Покрывает эндпоинты:
%%%   GET    /v1/admin/banned-words
%%%   POST   /v1/admin/banned-words
%%%   DELETE /v1/admin/banned-words/:word
%%%
%%% Проверяет:
%%%   - получение списка слов
%%%   - добавление нового слова
%%%   - удаление слова
%%%   - пагинацию
%%% @end
%%%-------------------------------------------------------------------
-module(admin_banned_words_tests).
-include_lib("eunit/include/eunit.hrl").

-export([test/0]).

%%%===================================================================
%%% Главная тестовая функция
%%%===================================================================

-spec test() -> ok.
test() ->
  ct:pal("=== Admin Banned Words Tests ==="),
  Token = api_test_runner:get_admin_token(),

  % Добавляем два исходных слова
  Unique = integer_to_binary(erlang:system_time()),
  Word1 = <<"badword1_", Unique/binary>>,
  Word2 = <<"badword2_", Unique/binary>>,
  api_test_runner:admin_post(<<"/v1/admin/banned-words">>, Token, #{<<"word">> => Word1}),
  api_test_runner:admin_post(<<"/v1/admin/banned-words">>, Token, #{<<"word">> => Word2}),

  test_list_words(Token, Word1, Word2),
  test_add_word(Token),
  test_words_pagination(Token),
  test_delete_word(Token, Word1),
  test_delete_word(Token, Word2),

  ct:pal("=== All admin banned words tests passed ==="),
  ok.

%%%===================================================================
%%% Тестовые функции
%%%===================================================================

%% @doc GET /v1/admin/banned-words – список всех слов.
-spec test_list_words(binary(), binary(), binary()) -> ok.
test_list_words(Token, Word1, Word2) ->
  ct:pal("  TEST: List all banned words"),
  Words = api_test_runner:admin_get(<<"/v1/admin/banned-words">>, Token),
  ?assert(is_list(Words)),
  ?assert(length(Words) >= 2),
  ?assert(lists:any(fun(W) -> maps:get(<<"word">>, W) =:= Word1 orelse maps:get(<<"word">>, W) =:= Word2 end, Words)),
  ct:pal("    OK: ~p words", [length(Words)]).

%% @doc POST /v1/admin/banned-words – добавление нового слова.
-spec test_add_word(binary()) -> ok.
test_add_word(Token) ->
  ct:pal("  TEST: Add a new banned word"),
  Unique = integer_to_binary(erlang:system_time()),
  NewWord = <<"newbadword", Unique/binary>>,
  Result = api_test_runner:admin_post(<<"/v1/admin/banned-words">>, Token, #{<<"word">> => NewWord}),
  ?assertEqual(<<"added">>, maps:get(<<"status">>, Result)),
  Words = api_test_runner:admin_get(<<"/v1/admin/banned-words">>, Token),
  ?assert(lists:any(fun(W) -> maps:get(<<"word">>, W) =:= NewWord end, Words)),
  ct:pal("    OK").

%% @doc DELETE /v1/admin/banned-words/:word – удаление слова.
-spec test_delete_word(binary(), binary()) -> ok.
test_delete_word(Token, Word) ->
  ct:pal("  TEST: Delete a banned word"),
  Path = <<"/v1/admin/banned-words/", Word/binary>>,
  Result = api_test_runner:admin_delete(Path, Token),
  ?assertEqual(<<"deleted">>, maps:get(<<"status">>, Result)),
  Words = api_test_runner:admin_get(<<"/v1/admin/banned-words">>, Token),
  ?assertNot(lists:any(fun(W) -> maps:get(<<"word">>, W) =:= Word end, Words)),
  ct:pal("    OK").

%% @doc GET /v1/admin/banned-words?limit=...&offset=... – пагинация.
-spec test_words_pagination(binary()) -> ok.
test_words_pagination(Token) ->
  ct:pal("  TEST: Banned words pagination"),
  Page1 = api_test_runner:admin_get(<<"/v1/admin/banned-words?limit=1&offset=0">>, Token),
  ?assert(length(Page1) >= 1),
  Page2 = api_test_runner:admin_get(<<"/v1/admin/banned-words?limit=1&offset=1">>, Token),
  ?assert(length(Page2) >= 1),
  Id1 = maps:get(<<"id">>, hd(Page1)),
  Id2 = maps:get(<<"id">>, hd(Page2)),
  ?assertNotEqual(Id1, Id2),
  ct:pal("    OK").