feat(): add humanize time format "past", and support future time for "relative"

shared/datetime/src/humanizeTime.spec.ts

@@ -149,6 +149,43 @@ describe("humanizeTime", () => {
     expect(humanizeTime(m)).toBe(m.format("LL ah:mm"));
   });
 
+  it("show relative past time", function () {
+    const pastMoment = moment().add(-5, "days");
+    expect(humanizeTime(pastMoment, HumanizeTimeFormat.relative)).toBe(
+      "5 天前"
+    );
+  });
+
+  it("show relative future time", function () {
+    const futureMoment = moment().add(5, "days");
+    expect(humanizeTime(futureMoment, HumanizeTimeFormat.relative)).toBe(
+      "5 天后"
+    );
+  });
+
+  it("show past time", function () {
+    const pastMoment = moment().add(-5, "days");
+    expect(humanizeTime(pastMoment, HumanizeTimeFormat.past)).toBe("5 天前");
+  });
+  it("show past time even if it is future time", function () {
+    const pastMoment = moment().add(5, "days");
+    expect(humanizeTime(pastMoment, HumanizeTimeFormat.past)).toBe("几秒前");
+  });
+
+  it("show future time", function () {
+    const futureMoment = moment().add(5, "days");
+    expect(humanizeTime(futureMoment, HumanizeTimeFormat.future)).toBe(
+      "5 天后"
+    );
+  });
+
+  it("show future time even if it is past time", function () {
+    const futureMoment = moment().add(-5, "days");
+    expect(humanizeTime(futureMoment, HumanizeTimeFormat.future)).toBe(
+      "几秒后"
+    );
+  });
+
   it("return null when given a nil", function () {
     expect(humanizeTime(undefined)).toBe(null);
     expect(humanizeTime(null)).toBe(null);

shared/datetime/src/humanizeTime.ts

@@ -11,6 +11,7 @@ export enum HumanizeTimeFormat {
   full = "full",
   default = "default",
   relative = "relative",
+  past = "past",
   future = "future",
   accurate = "accurate",
   auto = "auto",
@@ -95,7 +96,17 @@ export const humanizeTime = (
     case HumanizeTimeFormat.default:
       text = m.format(fDefault);
       break;
-    case HumanizeTimeFormat.relative:
+    case HumanizeTimeFormat.relative: {
+      const diff = +m - +now;
+      text =
+        diff <= 0
+          ? moment.duration(diff).humanize(true)
+          : i18n.t(`${NS_LIBS_DATETIME}:${K.FUTURE_AFTER}`, {
+              time: moment.duration(diff).humanize(),
+            });
+      break;
+    }
+    case HumanizeTimeFormat.past:
       text = moment.duration(Math.min(+m - +now, 0)).humanize(true);
       break;
     case HumanizeTimeFormat.future: