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|
-module(map_load).
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%% TYPES %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
-record
(
input,
{
player_id :: binary(),
session_token :: binary(),
map_id :: binary()
}
).
-record
(
query_state,
{
map :: shr_map:type()
}
).
-type input() :: #input{}.
-type query_state() :: #query_state{}.
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%% EXPORTS %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
-export([out/1]).
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%% LOCAL FUNCTIONS %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
-spec parse_input (shr_query:type()) -> input().
parse_input (Query) ->
JSONReqMap = shr_query:get_params(Query),
PlayerID = maps:get(<<"pid">>, JSONReqMap),
SessionToken = maps:get(<<"stk">>, JSONReqMap),
MapID = maps:get(<<"mid">>, JSONReqMap),
#input
{
player_id = PlayerID,
session_token = SessionToken,
map_id = MapID
}.
-spec authenticate_user (input()) -> ('ok' | 'error').
authenticate_user (Input) ->
PlayerID = Input#input.player_id,
SessionToken = Input#input.session_token,
Player = shr_timed_cache:fetch(player_db, ataxia_security:any(), PlayerID),
case shr_security:credentials_match(SessionToken, Player) of
true -> ok;
_ -> error
end.
-spec fetch_data (input()) -> query_state().
fetch_data (Input) ->
PlayerID = Input#input.player_id,
MapID = Input#input.map_id,
Map =
shr_timed_cache:fetch
(
map_db,
ataxia_security:user_from_id(PlayerID),
MapID
),
#query_state
{
map = Map
}.
-spec generate_reply(query_state()) -> binary().
generate_reply (QueryState) ->
Map = QueryState#query_state.map,
SetMap = shr_set_map:generate(Map),
Output = jiffy:encode([SetMap]),
Output.
-spec handle (shr_query:type()) -> binary().
handle (Query) ->
Input = parse_input(Query),
case authenticate_user(Input) of
ok ->
shr_security:lock_queries(Input#input.player_id),
QueryState = fetch_data(Input),
shr_security:unlock_queries(Input#input.player_id),
generate_reply(QueryState);
error -> jiffy:encode([shr_disconnected:generate()])
end.
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%% EXPORTED FUNCTIONS %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
out(A) ->
{
content,
"application/json; charset=UTF-8",
handle(shr_query:new(A))
}.
|
