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import { Field, FieldWaiting, FIELD_ID, FIELD_WAITING, FieldValue } from "../fields/Field"
import { Key, KeyStore } from "../fields/Key"
import { ObservableMap, action } from "mobx";
import { Document } from "../fields/Document"
import { SocketStub } from "./SocketStub";
import * as OpenSocket from 'socket.io-client';
import { Utils } from "./../Utils";
import { MessageStore } from "./../server/Message";
export class Server {
private static ClientFieldsCached: ObservableMap<FIELD_ID, Field | FIELD_WAITING> = new ObservableMap();
static Socket: SocketIOClient.Socket = OpenSocket("http://localhost:1234")
static GUID: string = Utils.GenerateGuid()
// Retrieves the cached value of the field and sends a request to the server for the real value (if it's not cached).
// Call this is from within a reaction and test whether the return value is FieldWaiting.
// 'hackTimeout' is here temporarily for simplicity when debugging things.
public static GetField(fieldid: FIELD_ID, callback: (field: Field) => void = (f) => { }, hackTimeout: number = -1) {
if (!this.ClientFieldsCached.get(fieldid)) {
this.ClientFieldsCached.set(fieldid, FieldWaiting);
//simulating a server call with a registered callback action
SocketStub.SEND_FIELD_REQUEST(fieldid,
action((field: Field) => callback(Server.cacheField(field))));
} else if (this.ClientFieldsCached.get(fieldid) != FieldWaiting) {
callback(this.ClientFieldsCached.get(fieldid) as Field);
}
return this.ClientFieldsCached.get(fieldid);
}
static times = 0; // hack for testing
public static GetDocumentField(doc: Document, key: Key) {
var hackTimeout: number = key == KeyStore.Data ? (this.times++ == 0 ? 5000 : 1000) : key == KeyStore.X ? 2500 : 500;
return this.GetField(doc._proxies.get(key.Id),
action((fieldfromserver: Field) => {
doc._proxies.delete(key.Id);
doc.fields.set(key, fieldfromserver);
})
, hackTimeout);
}
public static AddDocument(document: Document) {
SocketStub.SEND_ADD_DOCUMENT(document);
}
public static AddDocumentField(doc: Document, key: Key, value: Field) {
SocketStub.SEND_ADD_DOCUMENT_FIELD(doc, key, value);
}
public static DeleteDocumentField(doc: Document, key: Key) {
SocketStub.SEND_DELETE_DOCUMENT_FIELD(doc, key);
}
public static UpdateField(field: Field) {
SocketStub.SEND_SET_FIELD(field);
}
static connected(message: string) {
Server.Socket.emit(MessageStore.Bar.Message, Server.GUID);
}
@action
private static cacheField(clientField: Field) {
var cached = this.ClientFieldsCached.get(clientField.Id);
if (!cached || cached == FieldWaiting) {
this.ClientFieldsCached.set(clientField.Id, clientField);
} else {
// probably should overwrite the values within any field that was already here...
}
return this.ClientFieldsCached.get(clientField.Id) as Field;
}
}
Server.Socket.on(MessageStore.Foo.Message, Server.connected);
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