diff options
author | Tyler Schicke <tyler_schicke@brown.edu> | 2019-02-09 19:13:24 -0500 |
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committer | Tyler Schicke <tyler_schicke@brown.edu> | 2019-02-09 19:13:24 -0500 |
commit | 11134bc5ce01d0a025d311a4f83e67ff6e63ce1c (patch) | |
tree | e401d8004481b3d664c751ae2e668c72b6be7aac /src/client/Server.ts | |
parent | c06745a99ed85b215d0ae48bfb2af7c955f0b016 (diff) |
Moved client code to client folder
Diffstat (limited to 'src/client/Server.ts')
-rw-r--r-- | src/client/Server.ts | 61 |
1 files changed, 61 insertions, 0 deletions
diff --git a/src/client/Server.ts b/src/client/Server.ts new file mode 100644 index 000000000..85e55a84e --- /dev/null +++ b/src/client/Server.ts @@ -0,0 +1,61 @@ +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"; + +export class Server { + private static ClientFieldsCached: ObservableMap<FIELD_ID, Field | FIELD_WAITING> = new ObservableMap(); + + // 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))), + hackTimeout); + } 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), + action((fieldfromserver: Field) => { + doc._proxies.delete(key); + 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 SetFieldValue(field: Field, value: any) { + SocketStub.SEND_SET_FIELD(field, value); + } + + @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; + } +} |