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

-define(TABLES, [admin, admin_audit, calendar, event, ticket]).
-define(ADMIN_ID, <<"adm_test_1">>).
-define(OWNER_ID, <<"owner_evt_by_id">>).

setup() ->
  eh_test_support:start_mnesia(),
  eh_test_support:ensure_tables(?TABLES),
  eh_test_support:ensure_jwt(),
  eh_test_support:seed_admin(#{id => ?ADMIN_ID}),
  ok.

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

admin_event_by_id_test_() ->
  {foreach, fun setup/0, fun cleanup/1, [
    {"GET – success", {timeout, 60, fun test_get/0}},
    {"GET – not found", {timeout, 60, fun test_get_not_found/0}},
    {"PUT – update title/status", {timeout, 60, fun test_update/0}},
    {"PUT – not found", {timeout, 60, fun test_update_not_found/0}},
    {"DELETE – soft delete", {timeout, 60, fun test_delete/0}},
    {"DELETE – not found", {timeout, 60, fun test_delete_not_found/0}},
    {"GET – unauthorized", {timeout, 60, fun test_unauthorized/0}},
    {"PATCH – method not allowed", {timeout, 60, fun test_wrong_method/0}}
  ]}.

seed_event() ->
  {ok, Cal} = core_calendar:create(?OWNER_ID, <<"Cal">>, <<"">>, auto),
  {ok, Event} = core_event:create(
    Cal#calendar.id,
    <<"Target Event">>,
    eh_test_support:future_start(),
    60
  ),
  Event.

test_get() ->
  Event = seed_event(),
  EventId = Event#event.id,
  {Status, _, Body} = eh_test_support:call(admin_handler_event_by_id, #{
    method => <<"GET">>,
    path => <<"/v1/admin/events/", EventId/binary>>,
    bindings => #{id => EventId},
    auth => ?ADMIN_ID
  }),
  ?assertEqual(200, Status),
  Result = jsx:decode(Body, [return_maps]),
  ?assertEqual(EventId, maps:get(<<"id">>, Result)),
  ?assertEqual(<<"Target Event">>, maps:get(<<"title">>, Result)).

test_get_not_found() ->
  {Status, _, _} = eh_test_support:call(admin_handler_event_by_id, #{
    method => <<"GET">>,
    path => <<"/v1/admin/events/missing">>,
    bindings => #{id => <<"missing">>},
    auth => ?ADMIN_ID
  }),
  ?assertEqual(404, Status).

test_update() ->
  Event = seed_event(),
  EventId = Event#event.id,
  {Status, _, Body} = eh_test_support:call(admin_handler_event_by_id, #{
    method => <<"PUT">>,
    path => <<"/v1/admin/events/", EventId/binary>>,
    bindings => #{id => EventId},
    auth => ?ADMIN_ID,
    body => jsx:encode(#{
      <<"title">> => <<"Updated Event">>,
      <<"status">> => <<"cancelled">>
    })
  }),
  ?assertEqual(200, Status),
  Result = jsx:decode(Body, [return_maps]),
  ?assertEqual(<<"Updated Event">>, maps:get(<<"title">>, Result)),
  ?assertEqual(<<"cancelled">>, maps:get(<<"status">>, Result)),
  Audits = core_admin_audit:list(),
  ?assert(length(Audits) >= 1).

test_update_not_found() ->
  {Status, _, _} = eh_test_support:call(admin_handler_event_by_id, #{
    method => <<"PUT">>,
    path => <<"/v1/admin/events/missing">>,
    bindings => #{id => <<"missing">>},
    auth => ?ADMIN_ID,
    body => jsx:encode(#{<<"title">> => <<"X">>})
  }),
  ?assertEqual(404, Status).

test_delete() ->
  Event = seed_event(),
  EventId = Event#event.id,
  {Status, _, Body} = eh_test_support:call(admin_handler_event_by_id, #{
    method => <<"DELETE">>,
    path => <<"/v1/admin/events/", EventId/binary>>,
    bindings => #{id => EventId},
    auth => ?ADMIN_ID
  }),
  ?assertEqual(200, Status),
  #{<<"status">> := <<"deleted">>} = jsx:decode(Body, [return_maps]),
  {ok, Deleted} = core_event:get_by_id(EventId),
  ?assertEqual(deleted, Deleted#event.status),
  Audits = core_admin_audit:list(),
  ?assert(length(Audits) >= 1).

test_delete_not_found() ->
  {Status, _, _} = eh_test_support:call(admin_handler_event_by_id, #{
    method => <<"DELETE">>,
    path => <<"/v1/admin/events/missing">>,
    bindings => #{id => <<"missing">>},
    auth => ?ADMIN_ID
  }),
  ?assertEqual(404, Status).

test_unauthorized() ->
  Event = seed_event(),
  EventId = Event#event.id,
  {Status, _, _} = eh_test_support:call(admin_handler_event_by_id, #{
    method => <<"GET">>,
    path => <<"/v1/admin/events/", EventId/binary>>,
    bindings => #{id => EventId},
    auth => none
  }),
  ?assertEqual(401, Status).

test_wrong_method() ->
  Event = seed_event(),
  EventId = Event#event.id,
  {Status, _, _} = eh_test_support:call(admin_handler_event_by_id, #{
    method => <<"PATCH">>,
    path => <<"/v1/admin/events/", EventId/binary>>,
    bindings => #{id => EventId},
    auth => ?ADMIN_ID
  }),
  ?assertEqual(405, Status).