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|
-module(chr_update).
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%% TYPES %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
-include("../../../include/yaws_api.hrl").
-record
(
input,
{
player_id :: binary(),
session_token :: binary(),
character_ix :: non_neg_integer(),
character :: chr_character:type()
}
).
-record
(
query_state,
{
player :: shr_player:type(),
inventory :: shr_inventory:type(),
roster :: chr_roster:type()
}
).
-type input() :: #input{}.
-type query_state() :: #query_state{}.
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%% EXPORTS %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
-export([out/1]).
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%% LOCAL FUNCTIONS %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
-spec parse_input (binary()) -> input().
parse_input (Req) ->
JSONReqMap = jiffy:decode(Req, [return_maps]),
PlayerID = maps:get(<<"pid">>, JSONReqMap),
SessionToken = maps:get(<<"stk">>, JSONReqMap),
CharacterIX = maps:get(<<"cix">>, JSONReqMap),
EncodedCharacter = maps:get(<<"chr">>, JSONReqMap),
Character = chr_character:decode(EncodedCharacter),
#input
{
player_id = PlayerID,
session_token = SessionToken,
character_ix = CharacterIX,
character = Character
}.
-spec authenticate_user (input()) -> {'ok', shr_player:type()}.
authenticate_user (Input) ->
PlayerID = Input#input.player_id,
SessionToken = Input#input.session_token,
Player = shr_timed_cache:fetch(player_db, any, PlayerID),
shr_security:assert_identity(SessionToken, Player),
{ok, Player}.
-spec fetch_data (shr_player:type(), input()) -> query_state().
fetch_data (Player, Input) ->
PlayerID = Input#input.player_id,
RosterID = shr_player:get_roster_id(Player),
InventoryID = shr_player:get_inventory_id(Player),
Roster = shr_timed_cache:fetch(char_roster_db, PlayerID, RosterID),
Inventory = shr_timed_cache:fetch(char_roster_db, PlayerID, InventoryID),
#query_state
{
player = Player,
roster = Roster,
inventory = Inventory
}.
-spec update_data (query_state(), input()) -> query_state().
update_data (QueryState, Input) ->
Inventory = QueryState#query_state.inventory,
Character = Input#input.character,
chr_character:validate(Inventory, Character),
%% TODO [FUNCTION: chr][REQUIRED]: unimplemented.
QueryState.
-spec commit_update (query_state(), input()) -> 'ok'.
commit_update (QueryState, Input) ->
PlayerID = Input#input.player_id,
CharacterIX = Input#input.character_ix,
Character = Input#input.character,
Player = QueryState#query_state.player,
Roster = QueryState#query_state.roster,
RosterID = shr_player:get_roster_id(Player),
UpdatedRoster = chr_roster:set_character(CharacterIX, Character, Roster),
Query =
shr_db_query:new
(
char_roster_db,
RosterID,
{user, PlayerID},
[
shr_db_query:update_indexed
(
chr_roster:get_characters_field(),
CharacterIX,
[shr_db_query:set_value(Character)]
)
]
),
shr_database:commit(Query),
shr_timed_cache:update(char_roster_db, PlayerID, RosterID, UpdatedRoster),
'ok'.
-spec generate_reply () -> binary().
generate_reply () ->
jiffy:encode([shr_okay:generate()]).
-spec handle (binary()) -> binary().
handle (Req) ->
Input = parse_input(Req),
{ok, Player} = authenticate_user(Input),
shr_security:lock_queries(Input#input.player_id),
QueryState = fetch_data(Player, Input),
Update = update_data(QueryState, Input),
commit_update(Update, Input),
shr_security:unlock_queries(Input#input.player_id),
generate_reply().
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%% EXPORTED FUNCTIONS %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
out(A) ->
{
content,
"application/json; charset=UTF-8",
handle(A#arg.clidata)
}.
|
