feat(web): connect quick share flow

Signed-off-by: JustMe <mr.toing@outlook.com>

web/src/store/reduce.ts

@@ -0,0 +1,66 @@
+import type {
+  ChannelInfo,
+  ConnectionState,
+  Device,
+  Item,
+  Snapshot,
+  WorkspaceEvent,
+} from '@/core-bridge/types';
+
+export interface WorkspaceData {
+  ready: boolean;
+  connection: ConnectionState;
+  channel: ChannelInfo | null;
+  devices: Device[];
+  byId: Record<string, Item>;
+  /** 新的在前 */
+  order: string[];
+  snapshot: Snapshot;
+}
+
+export const initialData: WorkspaceData = {
+  ready: false,
+  connection: 'offline',
+  channel: null,
+  devices: [],
+  byId: {},
+  order: [],
+  snapshot: { text: '', updatedBy: '', updatedAt: 0 },
+};
+
+function insertByTime(order: string[], byId: Record<string, Item>, item: Item): string[] {
+  const at = order.findIndex((id) => (byId[id]?.ts ?? 0) < item.ts);
+  const next = order.slice();
+  next.splice(at === -1 ? next.length : at, 0, item.id);
+  return next;
+}
+
+export function reduce(s: WorkspaceData, e: WorkspaceEvent): WorkspaceData {
+  switch (e.t) {
+    case 'ready':
+      return { ...s, ready: true };
+    case 'connection':
+      return { ...s, connection: e.state };
+    case 'channel':
+      return { ...s, channel: e.info };
+    case 'devices':
+      return { ...s, devices: e.devices };
+    case 'snapshot':
+      return { ...s, snapshot: e.snapshot };
+    case 'item': {
+      const known = e.item.id in s.byId;
+      const byId = { ...s.byId, [e.item.id]: e.item };
+      return { ...s, byId, order: known ? s.order : insertByTime(s.order, byId, e.item) };
+    }
+    case 'removed': {
+      if (!(e.id in s.byId)) return s;
+      const byId = { ...s.byId };
+      delete byId[e.id];
+      return { ...s, byId, order: s.order.filter((id) => id !== e.id) };
+    }
+    default: {
+      const exhaustive: never = e;
+      return exhaustive;
+    }
+  }
+}