DIRECTORY
Commander USING [ CommandProc, Register ],
FinchSmarts,
GList,
IO,
LarkFeepRpcControl USING [ Feep, ImportNewInterface ],
LupineRuntime USING [ BindingError ],
MBQueue USING [ Create, QueueClientAction ],
NamesGV USING [ GVGetAttribute, GVSetAttribute ],
NamesGVImpExp USING [ GVImport, UnGVImport ],
NamesRPC USING [ StartConversation ],
Nice,
PrincOpsUtils USING [ IsBound ],
Process USING [ SecondsToTicks, SetTimeout, Ticks ],
PupSocket USING [ GetUniqueID ],
RefID USING [ ID ],
Rope,
RPC USING [ AuthenticateFailed, CallFailed, EncryptionKey, ImportFailed, VersionRange ],
ThParty	USING [ Advance, Alert, ConversationInfo, CreateConversation, Deregister, Enable, GetConversationInfo, GetParty, GetPartyFromNumber, GetPartyInfo, LookupServiceInterface, Register, Unvisit, Visit ],
ThPartyRpcControl,
Thrush USING[
ActionReport, ConversationID, ConvEvent, Credentials, InterfaceSpec, NB, none, notReallyInConv, nullConvID, nullID, PartyID, Reason, ROPE, SHHH, SmartsID, StateInConv, unencrypted ],
ThSmarts,
ThSmartsRpcControl,
ThVersions USING [ GetThrushVR, FinchVersion, FinchVR ],
UserProfile USING [ Token],
VoiceUtils USING [ CurrentPasskey, CurrentRName, InstanceFromNetAddress, MakeRName, NetAddress, NetAddressFromRope, OwnNetAddress, Problem, ProblemFR, Report ]
;

FinchSmartsImpl: CEDAR MONITOR
IMPORTS Commander, GList, IO, LarkFeepRpcControl, LupineRuntime, MBQueue, NamesGV, NamesGVImpExp, NamesRPC, Nice, PrincOpsUtils, Process, PupSocket, Rope, RPC, ThParty, ThPartyRpcControl, ThSmartsRpcControl, ThVersions, UserProfile, VoiceUtils
EXPORTS FinchSmarts, ThSmarts = {
OPEN IO;


ConvDesc: TYPE = FinchSmarts.ConvDesc;
ConversationID: TYPE = Thrush.ConversationID;
nullConvID: ConversationID = Thrush.nullConvID;
FinchInfo: TYPE = FinchSmarts.FinchInfo;
NB: TYPE = Thrush.NB;
none: SHHH = Thrush.none;
nullID: RefID.ID = Thrush.nullID;
PartyID: TYPE = Thrush.PartyID;
ROPE: TYPE = Thrush.ROPE;
SHHH: TYPE = Thrush.SHHH;
SmartsID: TYPE = Thrush.SmartsID;
StateInConv: TYPE = Thrush.StateInConv;
nullInterfaceSpec: Thrush.InterfaceSpec = [serviceID: nullID];

PD: TYPE = RECORD [
doReports: BOOL_FALSE,
doNice: BOOL_FALSE,
timeoutNoAction: INTEGER _ 30,
timeoutJayConnect: INTEGER _ 1,
noJayTicks: Process.Ticks _ Process.SecondsToTicks[1],
keyDistTicks: Process.Ticks _ Process.SecondsToTicks[10],
encryptionRequested: BOOLEAN_TRUE,
interfacesAreImported: BOOLEAN_FALSE,
smartsIsExported: BOOLEAN_FALSE,
waitsForConnect: NAT_6,
queueIt: BOOL_FALSE,
finchOn: BOOLEAN_FALSE,
maxProseLength: INT_1000,

systemStateSubscribers: LIST OF FinchSmarts.ReportSystemStateProc,
convStateSubscribers: LIST OF FinchSmarts.ReportConversationStateProc,
requestStateSubscribers: LIST OF FinchSmarts.ReportRequestStateProc 
];

info: FinchInfo;
pd: REF PD _ NEW[PD_[]];

Report: PROC[what: ROPE] = {
IF NOT pd.doReports THEN RETURN;
VoiceUtils.Report[what, $Finch];
};

BeNice: PROC[r: REF, d: INT] = {
IF NOT pd.doNice THEN RETURN;
Nice.BeNice[r, d, $Finch, NIL];
};

NConcConvs: PROC[l1, l2: LIST OF ConvDesc] RETURNS [LIST OF ConvDesc] = INLINE { RETURN[NARROW[GList.Nconc[l1, l2]]]; };

DequeueConv: PROC[l1: LIST OF ConvDesc, c: ConvDesc] RETURNS [LIST OF ConvDesc] = {
IF l1=NIL THEN RETURN[l1]; -- No list
IF l1.first=c THEN RETURN[l1.rest]; -- Head of list
FOR convs: LIST OF ConvDesc _ l1, convs.rest WHILE l1.rest#NIL DO
IF l1.rest.first=c THEN { l1.rest _ l1.rest.rest; RETURN[l1]; }; -- Internal to list
ENDLOOP;
RETURN[l1]; -- Not in list
};

Progress: PUBLIC ENTRY PROC[
shh: SHHH,
convEvent: Thrush.ConvEvent
] = {
ENABLE UNWIND => NULL; -- 
RestoreInvariant;
IF convEvent.self.partyID = convEvent.other.partyID THEN [] _ NoteNewState[convEvent];
};

Substitution: PUBLIC ENTRY PROC[
shh: SHHH,
convEvent: Thrush.ConvEvent,
oldPartyID: Thrush.PartyID,
newPartyID: Thrush.PartyID
] = {
ENABLE UNWIND => NULL; -- 
RestoreInvariant;
cDesc: ConvDesc = GetConv[convEvent.self.convID, FALSE];
IF cDesc#NIL THEN cDesc.numParties _ 0; -- This will force the information update.
[] _ NoteNewState[ convEvent ];
};

ReportAction: PUBLIC ENTRY PROC[
shh: SHHH,
report: Thrush.ActionReport
] = {
ENABLE UNWIND => NULL;
ReportRequestState[GetConv[report.self.convID], report];
BROADCAST info.stateChange; -- Sometimes callers wait (Ugh!)}
};

CallInfo: TYPE = REF CallInfoBody; -- needed because MBQueue requires a REF
CallInfoBody: TYPE = RECORD [
convID: Thrush.ConversationID,
calledPartyID: Thrush.PartyID_nullID,
reason: Thrush.Reason_NIL,
comment: ROPE_NIL
];

DisconnectCall: PUBLIC ENTRY PROC[
convID: Thrush.ConversationID,
reason: Thrush.Reason _ $terminating,
comment: ROPE_NIL,
newState: StateInConv _ $idle] = {
ENABLE UNWIND => NULL; -- 
RestoreInvariant;
cDesc: ConvDesc; state: StateInConv;
IF NOT(([,cDesc, state]_FinchOn[convID]).on) THEN RETURN;
SELECT state FROM
$idle, $neverWas => {
ReportConversationState[$convNotActive, NIL, "No conversation to disconnect"];
};
ENDCASE => []_Request[cDesc, newState, reason, comment];
};

AnswerCall: PUBLIC ENTRY PROC[convID: Thrush.ConversationID] = {
ENABLE UNWIND => NULL; -- 
RestoreInvariant;
cDesc: ConvDesc; state: StateInConv;
[,cDesc, state]_FinchOn[convID];
SELECT state FROM $ringing, $notified => []_Request[cDesc, $active]; ENDCASE;
};

PlaceCall: PUBLIC ENTRY PROC [
convID: Thrush.ConversationID_nullConvID,
rName: ROPE, -- rName or description
number: ROPE, -- telephone number, if present
useNumber: BOOL_FALSE
] = {
ENABLE {
UNWIND=>NULL; -- 
RestoreInvariant;
RPC.CallFailed => { UninitFinchSmarts["
Communication Failure"]; CONTINUE; };
};
calledPartyID: PartyID;
nb: NB;
reason: Thrush.Reason _ $notFound;
comment: Rope.ROPE _ NIL;
IF ~useNumber THEN {
[nb, calledPartyID] _ThParty.GetParty[shh:info.shh, partyID:info.partyID, rName:rName];
SELECT nb FROM $noSuchParty2, $noIdentSupplied => useNumber _ TRUE; ENDCASE;
};
IF useNumber AND number.Length[]>0 THEN
[nb, calledPartyID] _ ThParty.GetPartyFromNumber[
shh: info.shh, partyID: info.partyID, phoneNumber: number, description: rName];
SELECT nb FROM
$success => reason _ NIL; -- reason: NIL, comment: NIL
$noSuchParty2 => NULL; -- reason: $notFound, comment: NIL
$narcissism => comment _ "Attempt to call self rejected on philosophical grounds";
ENDCASE => { ReportConversationState[nb, NIL, NIL]; RETURN; };
[--
nb, cDesc--]_Connect[calledPartyID, convID, reason, comment];
};

Feep: PUBLIC ENTRY PROC[convID: ConversationID, feepString: ROPE] = {
cDesc: ConvDesc;
nb: Thrush.NB_$success;
state: StateInConv;
IF NOT(([,cDesc, state]_FinchOn[convID]).on) OR state#$active THEN nb _ $convNotActive;
IF nb=$success AND cDesc.feepInterface=NIL THEN {
IF cDesc.numParties>1 THEN [nb, cDesc.feepInterfaceSpec] _ ThParty.LookupServiceInterface[
info.shh, cDesc.situation.self, cDesc.partyInfo[1].partyID, "LarkFeep"]
ELSE nb_$noFeepingParty;
IF nb=$success THEN
cDesc.feepInterface _ LarkFeepRpcControl.ImportNewInterface[
interfaceName: cDesc.feepInterfaceSpec.interfaceName,
hostHint: cDesc.feepInterfaceSpec.hostHint!RPC.ImportFailed => CONTINUE
];
};
IF nb=$success THEN nb _ LarkFeepRpcControl.Feep[
interface: cDesc.feepInterface, shhh: info.shh,
serviceID: cDesc.feepInterfaceSpec.serviceID,
convID: cDesc.situation.self.convID, requestingParty: cDesc.situation.self.partyID,
number: feepString, noisy: TRUE, on: 100, off: 80
];
IF nb # $success THEN VoiceUtils.Report["Sorry, was not able to `feep'.", $Finch]; 
};
IdentifyVisitor: PUBLIC ENTRY PROC [visitor: Rope.ROPE] ~ {
nb: NB;
visitingPartyID: PartyID;
[nb, visitingPartyID] _ThParty.GetParty[shh:info.shh, partyID:info.partyID, rName:visitor];
IF nb#$success THEN RETURN;
nb _ ThParty.Visit[shh: info.shh, visitedParty: info.partyID, visitingParty: visitingPartyID];
IF nb#$success THEN RETURN;
info.visitors _ CONS[visitor, info.visitors];
};

ReleaseVisitor: PUBLIC ENTRY PROC [visitor: Rope.ROPE] ~ {
nb: NB;
found: BOOL_FALSE;
visitingPartyID: PartyID;
[nb, visitingPartyID] _ThParty.GetParty[shh:info.shh, partyID:info.partyID, rName:visitor];
FOR v: LIST OF Rope.ROPE _ info.visitors, v.rest WHILE v#NIL DO
IF v.first.Equal[visitor, FALSE] THEN { found_TRUE; info.visitors _ v.rest; }
ELSE IF v.rest#NIL AND v.rest.first.Equal[visitor, FALSE] THEN {
v.rest _ v.rest.rest; found_TRUE; };
ENDLOOP;
IF nb=$success AND found THEN
[] _ ThParty.Unvisit[shh: info.shh, visitingParty: visitingPartyID];
};

VoiceConnect: PUBLIC ENTRY PROC[
serviceName: ROPE, 
convID: ConversationID_nullConvID
] RETURNS [
nb: NB_$success,
cDesc: ConvDesc_NIL
] = {
ENABLE UNWIND=>NULL;
state: StateInConv;
calledPartyID: PartyID;
IF NOT (([,cDesc, state]_FinchOn[convID]).on) THEN {
Problem["Your Finch is not running"]; RETURN[nb: $finchNotRunning]; };
IF cDesc=NIL THEN [convID, cDesc, state] _ GetActiveConversation[]; -- 
Hack
SELECT state FROM
idle, reserved => {
[nb, calledPartyID] _ ThParty.GetParty[shh: info.shh, partyID: info.partyID, rName: serviceName, type: $service];
IF nb=$success THEN [nb, cDesc] _ Connect[calledPartyID, convID, NIL, NIL]
};
ENDCASE;
IF nb=$success THEN nb _ WaitForActive[cDesc];
};
LookupServiceInterface: PUBLIC PROC[
serviceName: ROPE,
interfaceName: ROPE,
cDesc: ConvDesc_NIL
] RETURNS [
nb: NB_$success,
shhh: Thrush.SHHH,
interfaceSpec: Thrush.InterfaceSpec
] = {
partyID: Thrush.PartyID_Thrush.nullID;
credentials: Thrush.Credentials;
IF cDesc#NIL THEN {
credentials _ cDesc.situation.self;
IF cDesc.numParties>1 THEN partyID _ cDesc.partyInfo[1].partyID;
}
ELSE {  -- want interface only
credentials _ [info.partyID, info.smartsID];
[nb, partyID] _ThParty.GetParty[
shh: info.shh, partyID: info.partyID, rName: serviceName, type: $service];
IF nb#$success THEN RETURN;
};
IF partyID = Thrush.nullID THEN RETURN[nb: $noSuchParty2, shhh: none, interfaceSpec: nullInterfaceSpec];
[nb, interfaceSpec] _ ThParty.LookupServiceInterface[info.shh, credentials, partyID, interfaceName]; 
shhh _ info.shh;
};


GetConv: PUBLIC PROC[convID: ConversationID, createOK: BOOL_FALSE]
RETURNS [ cDesc: ConvDesc_NIL ] = --INLINE-- {
cL: LIST OF ConvDesc;
IF convID#nullConvID THEN
FOR convs: LIST OF ConvDesc _ info.conversations, convs.rest WHILE convs#NIL DO
cDesc _ convs.first;
IF cDesc.situation.self.convID = convID THEN RETURN;
ENDLOOP;
cDesc _ NIL;
IF ~createOK THEN RETURN;
cDesc _ NEW[FinchSmarts.ConvDescBody_[
situation: [ self: [ convID: convID, smartsID: info.smartsID, partyID: info.partyID ]]]];
cL _ LIST[cDesc];
info.conversations _ NConcConvs[info.conversations, cL];
};

FinchOn: INTERNAL PROC[convID: ConversationID_nullConvID] RETURNS [
on: BOOL_FALSE, cDesc: ConvDesc_NIL, state: StateInConv_$idle] = {
IF ~pd.finchOn OR info=NIL THEN {
VoiceUtils.Report["Your Finch is not running", $Finch]; RETURN; };
on_TRUE;
IF convID=nullConvID THEN RETURN;
cDesc _ GetConv[convID, FALSE];
IF cDesc#NIL THEN state_cDesc.situation.self.state;
};

NoteNewState: INTERNAL PROC[convEvent: Thrush.ConvEvent] RETURNS[cDesc: ConvDesc]= {
cInfo: ThParty.ConversationInfo;
nb: NB;
cDesc _ GetConv[convEvent.self.convID, TRUE];
cDesc.situation _ convEvent^;
[nb, cInfo] _ ThParty.GetConversationInfo[shh: info.shh, convID: convEvent.self.convID];
SELECT TRUE FROM
nb # $success => Problem["Can't obtain conversation information"];
cDesc.numParties#cInfo.numParties, cDesc.numActive#cInfo.numActive,
cDesc.numIdle#cInfo.numIdle => {
cDesc.subject _ cInfo.subject;
cDesc.startTime _ cInfo.startTime;
cDesc.numParties _ cInfo.numParties;
cDesc.numActive _ cInfo.numActive;
cDesc.numIdle _ cInfo.numIdle;
[nb, cDesc.partyInfo] _
ThParty.GetPartyInfo[shh: info.shh, credentials: cDesc.situation.self,
nameReq: $description, allParties: TRUE];
IF nb#$success THEN Problem["Can't obtain conversation information", nb]
ELSE IF cDesc.numParties>=1 THEN
cDesc.whoOriginated _
IF cDesc.partyInfo[0].partyID=cInfo.originator THEN $us ELSE $them;
};
ENDCASE;
SELECT cDesc.situation.self.state FROM
$idle, $neverWas => info.conversations _ DequeueConv[info.conversations, cDesc];
$notified => SELECT filtering FROM -- 
Needs tests for calls already in progress. 
1 => []_Request[cDesc, $idle, $notImportantEnough, "This is a test"];
2 => []_Request[cDesc, $ringing];
3 => []_Request[cDesc, $active, $whatever, "Hot line!"];
ENDCASE;
ENDCASE => cDesc.ultimateState _ cDesc.situation.self.state;
ReportConversationState[$success, cDesc, NIL];
BROADCAST info.stateChange;
};

Request: INTERNAL PROC[
cDesc: ConvDesc,
state: StateInConv,
reason: Thrush.Reason_NIL,
comment: ROPE_NIL
]
RETURNS [nb: NB] = {
DO
convEvent: Thrush.ConvEvent;
reportToAll: BOOL = SELECT state FROM
$idle, $active, $inactive, $ringing => TRUE, ENDCASE=>FALSE;
[nb, convEvent] _
ThParty.Advance[shhh: info.shh, credentials: cDesc.situation.self, state: state,
reportToAll: reportToAll, reason: reason, comment: comment];
SELECT nb FROM
$success => []_NoteNewState[convEvent];
$stateMismatch => {
cDesc_NoteNewState[convEvent];
IF state=$idle AND cDesc.situation.self.state # $idle THEN LOOP;
};
ENDCASE => -- 
Some cases are fatal, requiring re-registration! --
ReportConversationState[nb, cDesc, "Telephone server action failed"];
EXIT;
ENDLOOP;
};

Connect: INTERNAL PROC [calledPartyID: PartyID, convID: ConversationID_nullConvID, reason: Thrush.Reason _ NIL, comment: ROPE_NIL]
RETURNS [ nb: NB_$success, cDesc: ConvDesc_NIL ] = {
state: StateInConv;
newState: StateInConv =IF reason=NIL THEN $initiating ELSE $failed;
convEvent: Thrush.ConvEvent;
IF ~(([,cDesc, state]_FinchOn[convID]).on) THEN { nb _ $finchInactive; RETURN; }; --

SELECT state FROM
$idle => {
[nb, convEvent] _ ThParty.CreateConversation[
shhh: info.shh,
credentials: [partyID: info.partyID, smartsID: info.smartsID],
state: newState,
reason: reason,
comment: comment
];
IF nb = $success THEN cDesc _ NoteNewState[convEvent];
};
$reserved, $parsing => nb _ Request[cDesc, newState, reason, comment];
ENDCASE => {
ReportConversationState[$convStillActive, NIL, "Conversation already in progress"];
RETURN;
};
IF nb # $success OR newState=$failed THEN RETURN;
cDesc.originatorRecorded _ TRUE;
nb_ThParty.Alert[shhh: info.shh,
credentials: cDesc.situation.self, calledPartyID: calledPartyID];
SELECT nb FROM
$success => NULL;
$stateMismatch => {
nb_Request[cDesc, $failed, $error, "Conversation already in progress"];
RETURN;
};
ENDCASE => {
-- 
Do something interesting  see other smarts for more confusion -- ERROR; };
};

WaitForActive: INTERNAL PROC[cDesc: ConvDesc] RETURNS [nb: NB_$success] = {
FOR i: NAT IN [0..pd.waitsForConnect) DO
SELECT cDesc.situation.self.state FROM
$active => RETURN;
$failed => EXIT;
ENDCASE;
TRUSTED { Process.SetTimeout[@info.stateChange, pd.noJayTicks]; };
WAIT info.stateChange; -- <<The supervisor condition vbl; will this work?>>
SELECT cDesc.situation.self.state FROM
$idle, $neverWas => EXIT; -- something wrong.
ENDCASE;
ENDLOOP;
nb_Request[cDesc, $failed, $error, "Finch failed to connect to voice service."];
IF nb=$success THEN nb_$timedOut;
};

GetActiveConversation: PROC
RETURNS[convID: ConversationID_Thrush.nullConvID, cDesc: ConvDesc_NIL, state: StateInConv_$idle] = {
FOR convs: LIST OF ConvDesc _ info.conversations, convs.rest WHILE convs#NIL DO
cDesc _ NARROW[convs.first];
IF cDesc.situation.self.state > Thrush.notReallyInConv THEN {
convID _ cDesc.situation.self.convID; state _ cDesc.situation.self.state; RETURN; }
ENDLOOP;
};

Problem: PROC[remark: ROPE_NIL, nb: NB_NIL] = {
IF nb=NIL THEN VoiceUtils.Problem[remark, $Finch]
ELSE VoiceUtils.ProblemFR["%g, reason: %g", $Finch, NIL, rope[remark], atom[nb]];
};

NewID: PROC RETURNS[LONG CARDINAL] ={RETURN[LOOPHOLE[PupSocket.GetUniqueID[]]]};


InitFinchSmarts: PUBLIC PROC [thrushInstance: Thrush.ROPE_NIL] = {
problem: ROPE_NIL; nb: NB; {
ENABLE RPC.CallFailed => { problem _ "Communication Failure"; GOTO InitFailed; };
credentials: Thrush.Credentials;
thVR: RPC.VersionRange = ThVersions.GetThrushVR;
problem: Thrush.ROPE _ NIL;
namesGVInstance: Thrush.ROPE_NIL;
hostHint: VoiceUtils.NetAddress;

UninitFinchSmarts[NIL];

info _ NEW[FinchSmarts.FinchInfoBody]; -- Dump any old one!
info.requests _ MBQueue.Create[];
info.conversations _ NIL;
thrushInstance _ VoiceUtils.MakeRName[style: rName, name:
IF thrushInstance#NIL THEN thrushInstance
ELSE UserProfile.Token[key: "ThrushClientServerInstance", default: "Strowger.Lark"]];
info.myName _ [
type: "ThSmarts.Lark",
instance: VoiceUtils.InstanceFromNetAddress[netAddress: VoiceUtils.OwnNetAddress[], suffix: "0"],
version: ThVersions.FinchVR];
info.myRName _ VoiceUtils.CurrentRName[];
info.myPassword _ VoiceUtils.CurrentPasskey[];
ThSmartsRpcControl.ExportInterface[
interfaceName: info.myName,
user: info.myRName,
password: info.myPassword];
pd.smartsIsExported_TRUE;

namesGVInstance _ UserProfile.Token[key: "NamesGVInstance", default: "Strowger.lark"];
IF ~(PrincOpsUtils.IsBound[LOOPHOLE[NamesGVImpExp.GVImport]] AND NamesGVImpExp.GVImport[namesGVInstance]) THEN {
problem _ "Couldn't import Grapevine Package"; GOTO InitFailed; };

info.shh _ IF NOT pd.encryptionRequested THEN Thrush.unencrypted
ELSE NamesRPC.StartConversation [
caller: info.myRName,
callee: thrushInstance,
key:	info.myPassword,
level:	--<<ECB>>--CBCCheck !
RPC.AuthenticateFailed=> { problem_"Could not authenticate"; GOTO InitFailed}];

hostHint _
VoiceUtils.NetAddressFromRope[NamesGV.GVGetAttribute[thrushInstance, $connect, NIL]];

ThPartyRpcControl.ImportInterface[
interfaceName: [type: "ThParty.Lark", instance: thrushInstance, version: thVR],
hostHint: hostHint! RPC.ImportFailed=> {
IF why=wrongVersion THEN
problem _ IO.PutFR["Finch version %d too old; import failed",
card[ThVersions.FinchVersion]];
GOTO InitFailed;
}];
pd.interfacesAreImported_TRUE;

[nb, credentials]_ThParty.Register[
shh: info.shh,
rName: info.myRName,
type: $individual,
interface: info.myName,
properties: [$controller, VoiceUtils.OwnNetAddress[]]
];
IF nb=$success THEN nb _ ThParty.Enable[shh: info.shh, smartsID: credentials.smartsID];
IF nb#$success THEN {
problem_"Can't register with server"; GOTO InitFailed; };
info.smartsID _ credentials.smartsID;
info.partyID _ credentials.partyID;
pd.finchOn_TRUE;
ReportSystemState[TRUE];
EXITS
InitFailed => UninitFinchSmarts[problem, nb];
};};

UninitFinchSmarts: PUBLIC PROC[problem: ROPE_NIL, nb: NB_NIL] = {
ENABLE RPC.CallFailed => GOTO Failed;
IF problem#NIL THEN Problem[problem, nb];
 IF info#NIL THEN {
IF pd.finchOn AND info.partyID#nullID AND info.smartsID#nullID THEN
[-- 
nb --]_ThParty.Deregister[info.shh, info.smartsID!RPC.CallFailed=>CONTINUE];
info.shh_none;
ReportSystemState[FALSE];
FOR convs: LIST OF ConvDesc _ info.conversations, convs.rest WHILE convs#NIL DO
convs.first.clientData _ NIL;
ENDLOOP;
info.conversations _ NIL;
};
pd.finchOn_FALSE;
IF PrincOpsUtils.IsBound[LOOPHOLE[NamesGVImpExp.UnGVImport]] THEN
NamesGVImpExp.UnGVImport[];
pd.interfacesAreImported_FALSE;
IF pd.smartsIsExported THEN
ThSmartsRpcControl.UnexportInterface[!LupineRuntime.BindingError=>CONTINUE];
pd.smartsIsExported_FALSE;
EXITS
Failed => pd.interfacesAreImported _ pd.smartsIsExported _ FALSE;
};

FinchIsRunning: PUBLIC PROC RETURNS [finchIsRunning: BOOL] = { RETURN[pd.finchOn]; };

RegisterForReports: PUBLIC ENTRY PROC [s: FinchSmarts.ReportSystemStateProc _ NIL, c: FinchSmarts.ReportConversationStateProc _ NIL, r: FinchSmarts.ReportRequestStateProc _ NIL, before: BOOL _ TRUE] = {
UnRegisterForReportsInt[s, c, r]; -- Multiple registrations do not hurt anything.
IF before THEN {
IF s # NIL THEN
pd.systemStateSubscribers _ CONS[s, pd.systemStateSubscribers];
IF c # NIL THEN
pd.convStateSubscribers _ CONS[c, pd.convStateSubscribers];
IF r # NIL THEN
pd.requestStateSubscribers _ CONS[r, pd.requestStateSubscribers];
}
ELSE {
IF s # NIL THEN
IF pd.systemStateSubscribers=NIL THEN pd.systemStateSubscribers _ LIST[s]
ELSE FOR l: LIST OF FinchSmarts.ReportSystemStateProc _ pd.systemStateSubscribers, l.rest DO
IF l.rest=NIL THEN { l.rest _ LIST[s]; EXIT };
ENDLOOP;
IF c # NIL THEN
IF pd.convStateSubscribers=NIL THEN pd.convStateSubscribers _ LIST[c]
ELSE FOR l: LIST OF FinchSmarts.ReportConversationStateProc _ pd.convStateSubscribers, l.rest DO
IF l.rest=NIL THEN { l.rest _ LIST[c]; EXIT };
ENDLOOP;
IF r # NIL THEN
IF pd.requestStateSubscribers=NIL THEN pd.requestStateSubscribers _ LIST[r]
ELSE FOR l: LIST OF FinchSmarts.ReportRequestStateProc _ pd.requestStateSubscribers, l.rest DO
IF l.rest=NIL THEN { l.rest _ LIST[r]; EXIT };
ENDLOOP;
};
};

UnRegisterForReports: PUBLIC ENTRY PROC [s: FinchSmarts.ReportSystemStateProc _ NIL, c: FinchSmarts.ReportConversationStateProc _ NIL, r: FinchSmarts.ReportRequestStateProc _ NIL] = { UnRegisterForReportsInt[s, c, r]; };

UnRegisterForReportsInt: INTERNAL PROC [s: FinchSmarts.ReportSystemStateProc _ NIL, c: FinchSmarts.ReportConversationStateProc _ NIL, r: FinchSmarts.ReportRequestStateProc _ NIL] = {
IF s # NIL AND pd.systemStateSubscribers # NIL THEN {
prev: LIST OF FinchSmarts.ReportSystemStateProc _ NIL;
FOR list: LIST OF FinchSmarts.ReportSystemStateProc _ pd.systemStateSubscribers, list.rest UNTIL list=NIL DO
IF list.first=s THEN { 
IF prev = NIL THEN pd.systemStateSubscribers _ list.rest
ELSE prev.rest _ list.rest; 
EXIT };
prev _ list;
ENDLOOP;
};
IF c # NIL AND pd.convStateSubscribers # NIL THEN {
prev: LIST OF FinchSmarts.ReportConversationStateProc _ NIL;
FOR list: LIST OF FinchSmarts.ReportConversationStateProc _ pd.convStateSubscribers, list.rest UNTIL list=NIL DO
IF list.first=c THEN { 
IF prev = NIL THEN pd.convStateSubscribers _ list.rest
ELSE prev.rest _ list.rest; 
EXIT };
prev _ list;
ENDLOOP;
};
IF r # NIL AND pd.requestStateSubscribers # NIL THEN {
prev: LIST OF FinchSmarts.ReportRequestStateProc _ NIL;
FOR list: LIST OF FinchSmarts.ReportRequestStateProc _ pd.requestStateSubscribers, list.rest UNTIL list=NIL DO
IF list.first=r THEN { 
IF prev = NIL THEN pd.requestStateSubscribers _ list.rest
ELSE prev.rest _ list.rest; 
EXIT };
prev _ list;
ENDLOOP;
};
};

ReportSystemState: PROC [on: BOOL] ~ {
FOR l: LIST OF FinchSmarts.ReportSystemStateProc _ pd.systemStateSubscribers, l.rest UNTIL l=NIL DO
l.first[on];
ENDLOOP;
};

ReportConversationState: PUBLIC PROC [nb: NB, cDesc: ConvDesc, remark: Rope.ROPE] ~ {
info.requests.QueueClientAction[ReallyReportConversationState,
NEW[CSBody _ [nb, cDesc, remark]]];
};

CS: TYPE = REF CSBody;
CSBody: TYPE = RECORD[nb: NB, cDesc: ConvDesc, remark: Rope.ROPE];

ReallyReportConversationState: PROC[r: REF] = {
cS: CS _ NARROW[r];
FOR l: LIST OF FinchSmarts.ReportConversationStateProc _ pd.convStateSubscribers, l.rest UNTIL l=NIL DO
l.first[cS.nb, cS.cDesc, cS.remark];
ENDLOOP;
};


ReportRequestState: PROC [cDesc: ConvDesc, actionReport: Thrush.ActionReport] ~ {
actionRequest: REF_NIL;
FOR l: LIST OF FinchSmarts.ReportRequestStateProc _ pd.requestStateSubscribers, l.rest UNTIL l=NIL DO
actionRequest _ l.first[cDesc, actionReport, actionRequest];
ENDLOOP;
};


ViewCmd: Commander.CommandProc = TRUSTED {
Nice.View[pd, "Finch PD"];
};

SetFiltering: PROC[which: INT, deferAnswer: ROPE_ "true"] _ {
filtering _ which;
NamesGV.GVSetAttribute[
VoiceUtils.MakeRName[VoiceUtils.CurrentRName[]], $deferanswer, deferAnswer];
};
filtering: INT_0;

FilterResetCmd: Commander.CommandProc = TRUSTED {
SetFiltering[0, "false"];
};

FilterZeroCmd: Commander.CommandProc = TRUSTED {
SetFiltering[0];
};

FilterOneCmd: Commander.CommandProc = TRUSTED {
SetFiltering[1];
};

FilterTwoCmd: Commander.CommandProc = TRUSTED {
SetFiltering[2];
};

FilterThreeCmd: Commander.CommandProc = TRUSTED {
SetFiltering[3];
};
Commander.Register["VuFinch", ViewCmd, "Program Management variables Finch"];
Commander.Register["FReset", FilterResetCmd, "Reset filtration method.  This is a test."];
Commander.Register["F0", FilterZeroCmd, "Zeroth filtration method.  This is a test."];
Commander.Register["F1", FilterOneCmd, "First filtration method.  This is a test."];
Commander.Register["F2", FilterTwoCmd, "Second filtration method.  This is a test."];
Commander.Register["F3", FilterThreeCmd, "Third filtration method.  This is a test."];
}.

ΦFinchSmartsImpl.mesa
Copyright c 1984, 1986 by Xerox Corporation.  All rights reserved.
Last Edited by: Swinehart, November 3, 1986 5:02:38 pm PST
Doug Terry, September 5, 1986 4:17:06 pm PDT
Polle Zellweger (PTZ) October 24, 1985 4:55:57 pm PDT
Declarations
Call backs
Supervision

Some party has changed state in a conversation we know about (or should).
Two cases:
Our party has changed state in a conversation, whether or not we're going to deal with it (at present, LarkSmarts makes all such decisions)
Another party changed state in a conversation we know about (at present, we don't need to know that; again, LarkSmarts does all the work.)  That case is filtered out in Progress, above.
It is our duty to obtain all relevant information about the call when the information becomes available, and to notify any Finch Clients.
One party has replaced another (they were or are now in a poacher/poachee relationship) in this conversation, so we need to update our information about the conversation.  Same as Progress, except that we clear any indication that we know anything about the present state before noting the new state.

If this notice indicates that our own party is the oldPartyID, we should find a way to inform our ReportConversationState clients that we are no longer involved in this conversation.  We should also pull the conv. from our active list.  This happens when the same user logs in and runs Finch somewhere else.
Client Functions


Don't unvisit unless visitor is in your list.  This isn't good enough.

Utilities
New conversation
Now gather up additional information that we might not know yet:
Who started this?
Who the other party(s) is (are)
State information guaranteed correct only as of last time one of these numbers changed.

If we've been called due to a Substitution that's kicking us out (cf Subst.), we should find a way to inform our ReportConversationState clients that we are no longer involved in this conversation.  We should also do a Dequeue as above. 

Real confused about Problem (typeout only) reporting vs. client reporting.  The responsibilities are unconvincingly distributed among Smarts and client.
If there's a reason, the connect request's only purpose is to record an error condition, audibly as well as visually.  This requires the creation of a conversation, then its immediate termination.

Some smarts don't do this.  They probably should.
For use in Recording, and so on, where client needs to wait for setup.
Hack.  Won't work when lots of conversations are the norm
Registration
For the purpose of importing NamesGV, use prior binding of serverInstance if there is one and the server name is the same as before.

ThParty.ConversationsForParty[shh: info.shh, partyID: partyID];

Warning: This facility has the same risks as most registration mechanisms: running multiple versions of the client code can cause unintended multiple registrations.
Queued so that reports do not deadlock with the callers of procedure that invoked the reports.  ReportSystemState would cause this trouble, too, but it has been avoided in a different way.  Perhaps this approach should be used there, too.  Action reports are already decoupled from requests through the auspices of ThParty.
Debugging nonsense

Swinehart, May 22, 1985 1:08:51 pm PDT
Changes to GetParty.
changes to: JayConnection
Polle Zellweger (PTZ) July 13, 1985 5:20:26 pm PDT
adding Text-to-Speech server
changes to: DIRECTORY, ProseSpec, ProseSpecs, stopIntervalSpec (was stopSpec), stopProseSpec, Progress, Supervise, DisconnectCall, PlaceCall, StopSpeech, TextToSpeech, InitFinchSmarts, GetConv, ReportProses, EnqueueProses, Complain, Connect, ProseConnection
Swinehart, August 6, 1985 5:43:08 pm PDT
Merge PTZ prose changes
changes to: DIRECTORY, NB, PD, stopIntervalSpec, stopProseSpec, Report, Progress, Supervise, DisconnectCall, PlaceCall, StopTune, NoiseSpec, PlaybackTune, TextToSpeech, InitFinchSmarts, GetConv, ReportProses, CompareIntID, EnqueueProses, Complain, Connect, JayConnection, ProseConnection, RepRet, FinchSmarts
Polle Zellweger (PTZ) August 19, 1985 4:16:40 pm PDT
Meter text in TextToSpeech so as to avoid sending large ropes all at once.  Allows speech to begin sooner and flush faster. Also flushing changes.
changes to: FinchInfo, PD, Supervise, TextToSpeech, StopSpeech, ReportProses (comments only)
Polle Zellweger (PTZ) September 3, 1985 6:28:29 pm PDT
Allow registration of defaultTranslateProc.
changes to: Supervise, defaultTranslateProc, RegisterTranslateProc, TextToSpeech, FinchSmarts
Swinehart, September 16, 1985 10:00:59 am PDT
If Finch has never been initialized, info is NIL -- don't let that bother you.
changes to: GetRname, PlayNoise, FinchOn
Polle Zellweger (PTZ) October 22, 1985 5:10:44 pm PDT
changes to: Progress (add prose debugging reports), TextToSpeech (report connection failure), ReportProses (fix debugging reports), JayConnection (report connection failure), ProseConnection (report connection failure)
Polle Zellweger (PTZ) October 24, 1985 4:53:21 pm PDT
Move bluejayConnection and proseConnection from FinchInfo to ConvDesc.
changes to: Supervise, DisconnectCall, InitFinchSmarts, Connect, JayConnection, ProseConnection
Swinehart, October 28, 1985 12:31:20 pm PST
Merge Above changes with other other minor changes (RefQ and the like)
changes to: DIRECTORY, FinchSmartsImpl, Progress, Supervise, DisconnectCall, TextToSpeech, InitFinchSmarts, UninitFinchSmarts, IsConv, GetConv, IsConv (local of GetConvDesc), GetConvDesc, ReportProses, FinchOn, Connect, JayConnection, ProseConnection, PlaybackTune, ClearConvs (local of UninitFinchSmarts)
Swinehart, December 13, 1985 2:52:25 pm PST
Massive change to new Thrush, leaving out proses and intervals for the moment.
changes to: ConversationHandle, FinchInfo, Progress, Supervise, DisconnectCall, AnswerCall, PlaceCall, Apprise, Complain, Connect, Problem, FinchSmarts, Progress, QdProgress
Swinehart, December 17, 1985 10:05:46 am PST
Major revision for new Thrush.  Removed all Prose and Bluejay stuff temporarily
changes to: QdProgress, NoteNewState, PutFTime, Connect, Problem, Progress, Other, Supervise
Swinehart, May 19, 1986 12:22:17 pm PDT
Cedar 6.1
changes to: DIRECTORY, SHHH
Swinehart, June 1, 1986 7:48:10 pm PDT
Add ReportAction, eliminate the MBQueueing of ThParty-provoked actions.  Others remain, but should go.
changes to: Progress, Substitution, ReportAction
Doug Terry, August 28, 1986 4:59:33 pm PDT
Changed report registration; removed key distribution; removed routines for recording/playing, tunes and related operations.
changes to: FinchIsRunning, RegisterForReports, UnRegisterForReports, ReportAction, DisconnectCall, PlaceCall, PlaybackTune, NoteNewState, Request, Connect, InitFinchSmarts, UninitFinchSmarts, ReportSystemState, ReportConversationState, ReportRequestState, DIRECTORY, FinchSmartsImpl, GetConv
Doug Terry, August 29, 1986 12:14:14 pm PDT
New interface procedures for FinchSmarts clients to get at voice services: VoiceConnect and LookupServiceInterface.
changes to: ReleaseVisitor, VoiceConnect, WaitForActive, LookupServiceInterface, Problem
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