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Send dispute msg over follow stream #15

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51900d4
watch for a SC entering dispute state and send dispute msg over follo…
andymck Sep 17, 2021
519765c
erlfmtting
andymck Sep 17, 2021
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157 changes: 104 additions & 53 deletions src/grpc/helium_state_channels_impl.erl
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Original file line number Diff line number Diff line change
Expand Up @@ -380,59 +380,8 @@ handle_event(
{v1, _SC} ->
StreamState;
{v2, SC} ->
case blockchain_ledger_state_channel_v2:close_state(SC) of
closed ->
#handler_state{sc_closes_sent = SCClosesSent, sc_follows = SCFollows} =
HandlerState = grpcbox_stream:stream_handler_state(
StreamState
),
%% use the ledger key to get the standalone SC ID from our follow list
case maps:get(LedgerSCID, SCFollows, not_found) of
{SCMod, SCID, SCOwner, SCExpireAtHeight, SCLastState, SCLastBlockTime} ->
{ok, CurHeight} = get_height(),
lager:info(
"got PUT for V2 SC ~p with close state ~p at height ~p",
[
SCID,
?SC_CLOSED,
CurHeight
]
),

{WasSent, NewStreamState, NewClosesSent} = maybe_send_follow_msg(
lists:member(SCID, SCClosesSent),
SCID,
SCOwner,
{?SC_CLOSED, SCClosesSent},
CurHeight,
SCLastState,
SCLastBlockTime,
StreamState
),
UpdatedSCState =
case WasSent of
true -> ?SC_CLOSED;
false -> SCLastState
end,
grpcbox_stream:stream_handler_state(
NewStreamState,
HandlerState#handler_state{
sc_follows = maps:put(
LedgerSCID,
{SCMod, SCID, SCOwner, SCExpireAtHeight, UpdatedSCState,
CurHeight},
SCFollows
),
sc_closes_sent = NewClosesSent
}
);
not_found ->
%% if we dont have a matching entry in the follow list do nothing
StreamState
end;
_ ->
StreamState
end
SCCloseState = blockchain_ledger_state_channel_v2:close_state(SC),
process_close_state(SCCloseState, LedgerSCID, StreamState)
end,
FinalStreamState;
handle_event(
Expand Down Expand Up @@ -670,6 +619,108 @@ check_is_overpaid_sc(SCID, SCOwner, TotalDCs, Chain) ->
false
end.

-spec process_close_state(
CloseState :: closed | dispute,
LedgerSCID :: binary(),
StreamState :: grpcbox_stream:t()
) -> grpcbox_stream:t().
process_close_state(closed, LedgerSCID, StreamState) ->
#handler_state{sc_closes_sent = SCClosesSent, sc_follows = SCFollows} =
HandlerState = grpcbox_stream:stream_handler_state(
StreamState
),
%% use the ledger key to get the standalone SC ID from our follow list
case maps:get(LedgerSCID, SCFollows, not_found) of
{SCMod, SCID, SCOwner, SCExpireAtHeight, SCLastState, SCLastBlockTime} ->
{ok, CurHeight} = get_height(),
lager:info(
"got PUT for V2 SC ~p with close state ~p at height ~p",
[
SCID,
?SC_CLOSED,
CurHeight
]
),

{WasSent, NewStreamState, NewClosesSent} = maybe_send_follow_msg(
lists:member(SCID, SCClosesSent),
SCID,
SCOwner,
{?SC_CLOSED, SCClosesSent},
CurHeight,
SCLastState,
SCLastBlockTime,
StreamState
),
UpdatedSCState =
case WasSent of
true -> ?SC_CLOSED;
false -> SCLastState
end,
grpcbox_stream:stream_handler_state(
NewStreamState,
HandlerState#handler_state{
sc_follows = maps:put(
LedgerSCID,
{SCMod, SCID, SCOwner, SCExpireAtHeight, UpdatedSCState, CurHeight},
SCFollows
),
sc_closes_sent = NewClosesSent
}
);
not_found ->
%% if we dont have a matching entry in the follow list do nothing
StreamState
end;
process_close_state(dispute, LedgerSCID, StreamState) ->
#handler_state{sc_disputes_sent = SCDisputesSent, sc_follows = SCFollows} =
HandlerState = grpcbox_stream:stream_handler_state(
StreamState
),
%% use the ledger key to get the standalone SC ID from our follow list
case maps:get(LedgerSCID, SCFollows, not_found) of
{SCMod, SCID, SCOwner, SCExpireAtHeight, SCLastState, SCLastBlockTime} ->
{ok, CurHeight} = get_height(),
lager:info(
"got PUT for V2 SC ~p with dispute state ~p at height ~p",
[
SCID,
?SC_DISPUTE,
CurHeight
]
),

{WasSent, NewStreamState, NewDisputesSent} = maybe_send_follow_msg(
lists:member(SCID, SCDisputesSent),
SCID,
SCOwner,
{?SC_DISPUTE, SCDisputesSent},
CurHeight,
SCLastState,
SCLastBlockTime,
StreamState
),
UpdatedSCState =
case WasSent of
true -> ?SC_DISPUTE;
false -> SCLastState
end,
grpcbox_stream:stream_handler_state(
NewStreamState,
HandlerState#handler_state{
sc_follows = maps:put(
LedgerSCID,
{SCMod, SCID, SCOwner, SCExpireAtHeight, UpdatedSCState, CurHeight},
SCFollows
),
sc_disputes_sent = NewDisputesSent
}
);
not_found ->
%% if we dont have a matching entry in the follow list do nothing
StreamState
end.

-spec get_ledger_state_channel(binary(), binary(), blockchain_ledger_v1:ledger()) ->
{ok, sc_ledger(), blockchain_state_channel_v1:state_channel()} | {error, any()}.
get_ledger_state_channel(SCID, Owner, Ledger) ->
Expand Down
16 changes: 14 additions & 2 deletions test/grpc_state_channels_service_SUITE.erl
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Original file line number Diff line number Diff line change
Expand Up @@ -299,7 +299,13 @@ is_active_sc_test(Config) ->
#{<<":status">> := HttpStatus1} = Headers1,
?assertEqual(HttpStatus1, <<"200">>),
?assertEqual(
ResponseMsg1#{sc_id := ActiveSCID, sc_owner := SCOwner, active := true, sc_expiry_at_block := 12, sc_original_dc_amount := 20},
ResponseMsg1#{
sc_id := ActiveSCID,
sc_owner := SCOwner,
active := true,
sc_expiry_at_block := 12,
sc_original_dc_amount := 20
},
ResponseMsg1
),

Expand All @@ -325,7 +331,13 @@ is_active_sc_test(Config) ->
#{<<":status">> := HttpStatus2} = Headers2,
?assertEqual(HttpStatus2, <<"200">>),
?assertEqual(
ResponseMsg2#{sc_id := <<"bad_id">>, sc_owner := SCOwner, active := false, sc_expiry_at_block := 0, sc_original_dc_amount := 0},
ResponseMsg2#{
sc_id := <<"bad_id">>,
sc_owner := SCOwner,
active := false,
sc_expiry_at_block := 0,
sc_original_dc_amount := 0
},
ResponseMsg2
),
ok.
Expand Down