Files
EventHubBack/src/handlers/admin/admin_handler_reports.erl
T

143 lines
5.1 KiB
Erlang

-module(admin_handler_reports).
-behaviour(cowboy_handler).
-export([init/2]).
-export([trails/0]).
-include("records.hrl").
-spec init(cowboy_req:req(), any()) -> {ok, cowboy_req:req(), any()}.
init(Req, _Opts) ->
case cowboy_req:method(Req) of
<<"GET">> -> list_reports(Req);
_ -> handler_utils:send_error(Req, 405, <<"Method not allowed">>)
end.
-spec trails() -> [map()].
trails() ->
[ #{ path => <<"/v1/admin/reports">>,
method => <<"GET">>,
description => <<"List all reports (admin)">>,
tags => [<<"Reports">>],
parameters => [
#{name => <<"status">>, in => <<"query">>,
schema => #{type => string, enum => [<<"pending">>, <<"reviewed">>, <<"dismissed">>]},
description => <<"Filter by status">>},
#{name => <<"target_type">>, in => <<"query">>,
schema => #{type => string, enum => [<<"calendar">>, <<"event">>, <<"review">>]},
description => <<"Filter by target type">>},
#{name => <<"q">>, in => <<"query">>, schema => #{type => string},
description => <<"Search in reason">>},
#{name => <<"sort">>, in => <<"query">>,
schema => #{type => string, enum => [<<"created_at">>, <<"status">>]},
description => <<"Sort field">>},
#{name => <<"order">>, in => <<"query">>,
schema => #{type => string, enum => [<<"asc">>, <<"desc">>]},
description => <<"Sort direction">>},
#{name => <<"limit">>, in => <<"query">>, schema => #{type => integer},
description => <<"Page size">>},
#{name => <<"offset">>, in => <<"query">>, schema => #{type => integer},
description => <<"Offset">>}
],
responses => #{
200 => #{ description => <<"Array of reports">>,
content => #{<<"application/json">> => #{schema => #{
type => array,
items => report_schema()
}}} }
}
}
].
report_schema() ->
#{ type => object,
properties => #{
id => #{type => string},
reporter_id => #{type => string},
target_type => #{type => string, enum => [<<"calendar">>, <<"event">>, <<"review">>]},
target_id => #{type => string},
reason => #{type => string},
status => #{type => string, enum => [<<"pending">>, <<"reviewed">>, <<"dismissed">>]},
created_at => #{type => string, format => <<"date-time">>},
resolved_at => #{type => string, format => <<"date-time">>, nullable => true},
resolved_by => #{type => string, nullable => true}
}
}.
%%% Internal functions
-spec list_reports(cowboy_req:req()) -> {ok, binary(), cowboy_req:req()}.
list_reports(Req) ->
case handler_utils:auth_admin(Req) of
{ok, AdminId, Req1} ->
Filters = parse_report_filters(Req1),
Pagination0 = handler_utils:parse_pagination_params(Req1),
Pagination = Pagination0#{
sort => maps:get(sort, Pagination0, <<"created_at">>),
order => maps:get(order, Pagination0, <<"desc">>)
},
case logic_report:list_reports(AdminId) of
{ok, AllReports} ->
Filtered = apply_report_filters(AllReports, Filters),
Sorted = sort_reports(Filtered, Pagination),
Total = length(Sorted),
Page = lists:sublist(Sorted, maps:get(offset, Pagination) + 1,
maps:get(limit, Pagination)),
Json = [handler_utils:report_to_json(R) || R <- Page],
ExtraHeaders = handler_utils:pagination_headers(Pagination, Total),
handler_utils:send_json(Req1, 200, Json, ExtraHeaders);
{error, access_denied} ->
handler_utils:send_error(Req1, 403, <<"Admin access required">>)
end;
{error, Code, Msg, Req1} ->
handler_utils:send_error(Req1, Code, Msg)
end.
parse_report_filters(Req) ->
Qs = cowboy_req:parse_qs(Req),
StatusBin = proplists:get_value(<<"status">>, Qs),
TargetBin = proplists:get_value(<<"target_type">>, Qs),
#{
status => convert_to_atom(StatusBin),
target_type => convert_to_atom(TargetBin),
q => proplists:get_value(<<"q">>, Qs)
}.
convert_to_atom(undefined) -> undefined;
convert_to_atom(Bin) when is_binary(Bin) ->
try binary_to_existing_atom(Bin, utf8)
catch error:badarg -> Bin
end.
apply_report_filters(Reports, Filters) ->
Status = maps:get(status, Filters, undefined),
TargetType = maps:get(target_type, Filters, undefined),
Q = maps:get(q, Filters, undefined),
F1 = case Status of
undefined -> Reports;
_ -> [R || R <- Reports, R#report.status =:= Status]
end,
F2 = case TargetType of
undefined -> F1;
_ -> [R || R <- F1, R#report.target_type =:= TargetType]
end,
case Q of
undefined -> F2;
_ -> [R || R <- F2,
string:str(binary_to_list(R#report.reason),
binary_to_list(Q)) > 0]
end.
sort_reports(Reports, #{sort := Sort, order := Order}) ->
Field = binary_to_existing_atom(Sort, utf8),
lists:sort(
fun(A, B) ->
ValA = report_field(A, Field),
ValB = report_field(B, Field),
if Order == <<"asc">> -> ValA =< ValB;
true -> ValA >= ValB
end
end, Reports).
report_field(#report{created_at = V}, created_at) -> V;
report_field(#report{status = V}, status) -> V;
report_field(_, _) -> undefined.