-module(logic_moderation_tests).
-include_lib("eunit/include/eunit.hrl").
-include("records.hrl").

-define(TABLES, [user, admin, calendar, event, report, banned_word]).

%% ----------------------------------------------------------------
%% Фикстуры
%% ----------------------------------------------------------------
setup() ->
  eh_test_support:start_mnesia(),
  eh_test_support:ensure_tables(?TABLES),
  ok.

cleanup(_) ->
  eh_test_support:delete_tables(?TABLES),
  eh_test_support:stop_mnesia(),
  ok.

%% ----------------------------------------------------------------
%% Тесты
%% ----------------------------------------------------------------
logic_moderation_test_() ->
  {foreach, fun setup/0, fun cleanup/1, [
    {"Create report test",               fun test_create_report/0},
    {"Get reports test",                 fun test_get_reports/0},
    {"Resolve report test",              fun test_resolve_report/0},
    {"Add banned word test",             fun test_add_banned_word/0},
    {"Remove banned word test",          fun test_remove_banned_word/0},
    {"Auto freeze by reports test",      fun test_auto_freeze/0},
    {"Freeze/unfreeze calendar test",    fun test_freeze_calendar/0},
    {"Freeze/unfreeze event test",       fun test_freeze_event/0},
    {"Check content test",               fun test_check_content/0}
  ]}.

%% ── Вспомогательные функции ──────────────────────────────
create_test_user() ->
  UserId = base64:encode(crypto:strong_rand_bytes(16), #{mode => urlsafe, padding => false}),
  User = eh_test_support:make_user(#{id => UserId, email => <<UserId/binary, "@test.com">>}),
  mnesia:dirty_write(User),
  UserId.

create_test_admin() ->
  AdminId = base64:encode(crypto:strong_rand_bytes(16), #{mode => urlsafe, padding => false}),
  Admin = eh_test_support:seed_admin(#{id => AdminId, email => <<AdminId/binary, "@admin.test">>}),
  Admin#admin.id.

create_test_calendar(OwnerId) ->
  {ok, Calendar} = core_calendar:create(OwnerId, <<"Test">>, <<"">>, manual),
  Calendar#calendar.id.

create_test_event(CalendarId) ->
  {ok, Event} = core_event:create(CalendarId, <<"Event">>,
    eh_test_support:future_start(), 60),
  Event#event.id.

%% ── Тесты ─────────────────────────────────────────────────
test_create_report() ->
  ReporterId = create_test_user(),
  OwnerId = create_test_user(),
  CalendarId = create_test_calendar(OwnerId),
  EventId = create_test_event(CalendarId),
  {ok, Report} = logic_moderation:create_report(ReporterId, event, EventId, <<"Bad content">>),
  ?assertEqual(ReporterId, Report#report.reporter_id),
  ?assertEqual(pending, Report#report.status).

test_get_reports() ->
  AdminId = create_test_admin(),
  ReporterId = create_test_user(),
  OwnerId = create_test_user(),
  CalendarId = create_test_calendar(OwnerId),
  EventId = create_test_event(CalendarId),
  {ok, _} = logic_moderation:create_report(ReporterId, event, EventId, <<"">>),
  Reports = logic_moderation:get_reports(AdminId),
  ?assertEqual(1, length(Reports)).

test_resolve_report() ->
  AdminId = create_test_admin(),
  ReporterId = create_test_user(),
  OwnerId = create_test_user(),
  CalendarId = create_test_calendar(OwnerId),
  EventId = create_test_event(CalendarId),
  {ok, Report} = logic_moderation:create_report(ReporterId, event, EventId, <<"">>),
  {ok, Resolved} = logic_moderation:resolve_report(AdminId, Report#report.id, reviewed),
  ?assertEqual(reviewed, Resolved#report.status),
  ?assertEqual(AdminId, Resolved#report.resolved_by).

test_add_banned_word() ->
  AdminId = create_test_admin(),
  {ok, BW} = logic_moderation:add_banned_word(AdminId, <<"badword">>),
  ?assertEqual(<<"badword">>, BW#banned_word.word),
  ?assertEqual(AdminId, BW#banned_word.added_by).

test_remove_banned_word() ->
  AdminId = create_test_admin(),
  {ok, _} = logic_moderation:add_banned_word(AdminId, <<"badword">>),
  {ok, deleted} = logic_moderation:remove_banned_word(AdminId, <<"badword">>),
  ?assertEqual([], core_banned_words:list_banned_words()).

test_auto_freeze() ->
  Reporter1 = create_test_user(),
  Reporter2 = create_test_user(),
  Reporter3 = create_test_user(),
  OwnerId = create_test_user(),
  CalendarId = create_test_calendar(OwnerId),
  EventId = create_test_event(CalendarId),
  {ok, _} = logic_moderation:create_report(Reporter1, event, EventId, <<"">>),
  {ok, _} = logic_moderation:create_report(Reporter2, event, EventId, <<"">>),
  {ok, _} = logic_moderation:create_report(Reporter3, event, EventId, <<"">>),
  {ok, Event} = core_event:get_by_id(EventId),
  ?assertEqual(frozen, Event#event.status).

test_freeze_calendar() ->
  AdminId = create_test_admin(),
  OwnerId = create_test_user(),
  CalendarId = create_test_calendar(OwnerId),
  {ok, Frozen} = logic_moderation:freeze_calendar(AdminId, CalendarId),
  ?assertEqual(frozen, Frozen#calendar.status),
  {ok, Unfrozen} = logic_moderation:unfreeze_calendar(AdminId, CalendarId),
  ?assertEqual(active, Unfrozen#calendar.status).

test_freeze_event() ->
  AdminId = create_test_admin(),
  OwnerId = create_test_user(),
  CalendarId = create_test_calendar(OwnerId),
  EventId = create_test_event(CalendarId),
  {ok, Frozen} = logic_moderation:freeze_event(AdminId, EventId),
  ?assertEqual(frozen, Frozen#event.status),
  {ok, Unfrozen} = logic_moderation:unfreeze_event(AdminId, EventId),
  ?assertEqual(active, Unfrozen#event.status).

test_check_content() ->
  AdminId = create_test_admin(),
  {ok, _} = logic_moderation:add_banned_word(AdminId, <<"bad">>),
  ?assertNot(logic_moderation:check_content(<<"Hello">>)),
  ?assert(logic_moderation:check_content(<<"This is bad">>)),
  ?assertEqual(<<"Hello">>, logic_moderation:auto_moderate(<<"Hello">>)),
  ?assertEqual(<<"This is ***">>, logic_moderation:auto_moderate(<<"This is bad">>)).