Merge pull request #24 from dctalbot/remove-dayjs

refactor: perf

Author: dctalbot

package-lock.json

@@ -26,8 +26,6 @@
     "expo-status-bar": "~3.0.8",
     "expo-system-ui": "~6.0.8",
     "expo-updates": "~29.0.12",
-    "globals": "^16.4.0",
-    "lodash-es": "^4.17.21",
     "react": "19.1.0",
     "react-native": "0.81.5",
     "react-native-pager-view": "6.9.1",
@@ -40,7 +38,6 @@
   },
   "devDependencies": {
     "@babel/core": "^7.28.4",
-    "@types/lodash-es": "^4.17.12",
     "@types/react": "~19.1.10",
     "babel-plugin-transform-remove-console": "^6.9.4",
     "oxlint": "^1.26.0",

package.json

@@ -1,6 +1,5 @@
 import { View } from "react-native";
 import * as React from "react";
-import { get } from "lodash-es";
 import { DAYS, getToday } from "../../util/time";
 import { createMaterialTopTabNavigator } from "@react-navigation/material-top-tabs";
 import { ScheduleTab } from "./ScheduleTab";
@@ -20,8 +19,8 @@ export function ScheduleScreen() {
         screenListeners={{
           state: (e) => {
             let nextTitle = "Schedule";
-            const index = get(e, "data.state.index", null);
-            const routeNames = get(e, "data.state.routeNames", []);
+            const index = e?.data?.state?.index ?? null;
+            const routeNames = e?.data?.state?.routeNames ?? [];
             if (index === null || routeNames.length === 0) {
               nextTitle = "Schedule";
             } else {

src/screens/schedule/ScheduleScreen.tsx

@@ -10,9 +10,7 @@ import { Day, getScheduleDayRange, getTime } from "../../util/time";
 import { AppText } from "../../ui/AppText";
 import { AppSeparator } from "../../ui/AppSeparator";
 import { fontSize, fontWeight, spacing } from "../../theme/theme";
-import dayjs from "dayjs";
 import { getResourceID } from "@dctalbot/react-spinitron";
-import { get } from "lodash-es";
 import { usePersona } from "@dctalbot/react-spinitron";
 import { useTheme } from "../../theme/useTheme";
 
@@ -24,7 +22,7 @@ function ShowListItem(props: ShowListItemProps) {
   const theme = useTheme();
   const name = props.item?.title;
   const at = getTime(props.item?.start);
-  const personaIDs = get(props.item, "_links.personas", []).map(
+  const personaIDs = (props?.item?._links?.personas ?? []).map(
     (
       x: any, // eslint-disable-line @typescript-eslint/no-explicit-any
     ) => getResourceID(x.href),
@@ -45,7 +43,7 @@ function ShowListItem(props: ShowListItemProps) {
   if (personaIDs.length > 1) {
     host = `rotating hosts`;
   } else {
-    host = get(data, "name", "");
+    host = data?.name ?? "";
   }
   if (host.toLowerCase() === "rotating hosts") {
     host = "rotating hosts";
@@ -119,7 +117,7 @@ export function ScheduleTab(props: ScheduleTabProps) {
   });
 
   const listdata = (data ?? []).filter(
-    (i) => Boolean(i?.title && i?.start) && dayjs(i?.start) >= dayjs(start),
+    (i) => i?.title && i?.start && Date.parse(i.start) >= Date.parse(start),
   );
 
   if (isFetching && listdata.length === 0) {

src/screens/schedule/ScheduleTab.tsx

@@ -43,7 +43,7 @@ export function fmtOnAt(input?: string): string {
 // }
 
 export function getToday(): Day {
-  return dayjs().format("dddd") as Day;
+  return DAYS[new Date().getDay()];
 }
 
 export function getScheduleDayRange(day: Day): [string, string] {
@@ -60,19 +60,23 @@ export function getScheduleDayRange(day: Day): [string, string] {
 // getTime returns 12-hour time and AM/PM.
 // If the input is invalid, an empty string is returned.
 export function getTime(input?: string): string {
-  let result = "";
-
   if (!input) {
     return "";
   }
 
   try {
-    result = dayjs(input).format("LT");
+    const d = new Date(input);
+    let hours = d.getHours();
+    const minutes = d.getMinutes();
+    const ampm = hours >= 12 ? "PM" : "AM";
+    hours = hours % 12;
+    if (hours === 0) {
+      hours = 12;
+    }
+    const minutesStr = minutes.toString().padStart(2, "0");
+
+    return `${hours}:${minutesStr} ${ampm}`;
   } catch {
     return "";
   }
-  if (!result) {
-    return "";
-  }
-  return result;
 }