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authorTyler Schicke <tyler_schicke@brown.edu>2019-02-09 19:13:24 -0500
committerTyler Schicke <tyler_schicke@brown.edu>2019-02-09 19:13:24 -0500
commit11134bc5ce01d0a025d311a4f83e67ff6e63ce1c (patch)
treee401d8004481b3d664c751ae2e668c72b6be7aac /src/client/Server.ts
parentc06745a99ed85b215d0ae48bfb2af7c955f0b016 (diff)
Moved client code to client folder
Diffstat (limited to 'src/client/Server.ts')
-rw-r--r--src/client/Server.ts61
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;
+ }
+}