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|
-module(btl_character_turn).
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%% TYPES %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
-include("../../../include/yaws_api.hrl").
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%% EXPORTS %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
-export([out/1]).
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%% LOCAL FUNCTIONS %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%%%% REQUEST DECODING %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
-spec decode_request (shr_query:type()) -> btl_character_turn_request:type().
decode_request (Query) ->
btl_character_turn_request:decode(shr_query:get_params(Query)).
%%%% USER AUTHENTICATION %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
-spec authenticate_user (btl_character_turn_request:type()) -> ('ok' | 'error').
authenticate_user (Request) ->
PlayerID = btl_character_turn_request:get_player_id(Request),
SessionToken = btl_character_turn_request:get_session_token(Request),
Player = shr_timed_cache:fetch(player_db, ataxia_security:any(), PlayerID),
case shr_security:credentials_match(SessionToken, Player) of
true -> ok;
_ -> error
end.
%%%% MAIN LOGIC %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
-spec fetch_data
(
btl_character_turn_request:type()
)
-> btl_character_turn_update:type().
fetch_data (Request) ->
PlayerID = btl_character_turn_request:get_player_id(Request),
BattleID = btl_character_turn_request:get_battle_id(Request),
CharacterIX = btl_character_turn_request:get_character_ix(Request),
Battle =
shr_timed_cache:fetch
(
battle_db,
ataxia_security:user_from_id(PlayerID),
BattleID
),
btl_character_turn_update:new(Battle, CharacterIX).
%%%% ASSERTS %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
-spec assert_user_is_current_player
(
btl_character_turn_update:type(),
btl_character_turn_request:type()
) -> 'ok'.
assert_user_is_current_player (Update, Request) ->
PlayerID = btl_character_turn_request:get_player_id(Request),
{_SameUpdate, Battle} = btl_character_turn_update:get_battle(Update),
CurrentPlayerTurn = btl_battle:get_current_player_turn(Battle),
CurrentPlayerIX = btl_player_turn:get_player_ix(CurrentPlayerTurn),
CurrentPlayer = btl_battle:get_player(CurrentPlayerIX, Battle),
true = (PlayerID == btl_player:get_id(CurrentPlayer)),
ok.
-spec assert_user_owns_played_character
(
btl_character_turn_update:type(),
btl_character_turn_request:type()
) -> 'ok'.
assert_user_owns_played_character (Update, Request) ->
PlayerID = btl_character_turn_request:get_player_id(Request),
{_SameUpdateA, Battle} = btl_character_turn_update:get_battle(Update),
{_SameUpdateB, Character} = btl_character_turn_update:get_character(Update),
CharacterPlayerIX = btl_character:get_player_index(Character),
CharacterPlayer = btl_battle:get_player(CharacterPlayerIX, Battle),
CharacterPlayerID = btl_player:get_id(CharacterPlayer),
true = (PlayerID == CharacterPlayerID),
ok.
-spec assert_character_can_be_played (btl_character_turn_update:type()) -> 'ok'.
assert_character_can_be_played (Update) ->
{_SameUpdate, Character} = btl_character_turn_update:get_character(Update),
true = btl_character:get_is_active(Character),
ok.
-spec assert_user_permissions
(
btl_character_turn_update:type(),
btl_character_turn_request:type()
) -> 'ok'.
assert_user_permissions (Update, Request) ->
assert_user_is_current_player(Update, Request),
assert_user_owns_played_character(Update, Request),
assert_character_can_be_played(Update),
ok.
%%%% DATABASE UPDATES %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
-spec send_to_database
(
btl_character_turn_update:type(),
btl_character_turn_request:type()
)
-> 'ok'.
send_to_database (Update, Request) ->
PlayerID = btl_character_turn_request:get_player_id(Request),
BattleID = btl_character_turn_request:get_battle_id(Request),
BattleAtaxicUpdate = btl_character_turn_update:get_battle_update(Update),
ok =
ataxia_client:update
(
battle_db,
ataxia_security:user_from_id(PlayerID),
ataxic:update_value(ataxic:optimize(BattleAtaxicUpdate)),
BattleID
),
ok.
-spec send_to_cache
(
btl_character_turn_update:type(),
btl_character_turn_request:type()
)
-> 'ok'.
send_to_cache (Update, Request) ->
PlayerID = btl_character_turn_request:get_player_id(Request),
BattleID = btl_character_turn_request:get_battle_id(Request),
{_SameUpdate, Battle} = btl_character_turn_update:get_battle(Update),
shr_timed_cache:update
(
battle_db,
ataxia_security:user_from_id(PlayerID),
BattleID,
Battle
),
ok.
-spec commit_update
(
btl_character_turn_update:type(),
btl_character_turn_request:type()
)
-> 'ok'.
commit_update (Update, Request) ->
send_to_database(Update, Request),
send_to_cache(Update, Request),
ok.
%%%% REPLY GENERATION %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
-spec generate_reply (btl_character_turn_update:type()) -> binary().
generate_reply (Update) ->
NewTimelineItems = btl_character_turn_update:get_timeline(Update),
TurnResultReply = btl_turn_results:generate(NewTimelineItems),
jiffy:encode([TurnResultReply]).
%%%% MAIN LOGIC %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
-spec handle (shr_query:type()) -> binary().
handle (Query) ->
Request = decode_request(Query),
case authenticate_user(Request) of
ok ->
PlayerID = btl_character_turn_request:get_player_id(Request),
shr_security:lock_queries(PlayerID),
S0Update = fetch_data(Request),
assert_user_permissions(S0Update, Request),
S1Update = btl_turn_actions_management:handle(S0Update, Request),
commit_update(S1Update, Request),
shr_security:unlock_queries(PlayerID),
generate_reply(S1Update);
error -> jiffy:encode([shr_disconnected:generate()])
end.
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%% EXPORTED FUNCTIONS %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
out(A) ->
{
content,
"application/json; charset=UTF-8",
handle(shr_query:new(A))
}.
|
