_README.md

Needs: cheerio npm module (in node-red addon config), and the HACS node-red companion (then install the integration).

app.js

// just the javascript parse function so you can understand what's happening:

import * as cheerio from 'cheerio';

const res = await fetch('https://www.buses.co.uk/stops/149000006328', {
  headers: {
    'X-Requested-With': 'XMLHttpRequest',
  },
});
const msg = {
  payload: await res.text(),
};

console.log(main(msg));

function main(msg) {
  const html = msg.payload;

  const $ = cheerio.load(html);

  msg.payload = getDate($);

  return msg;

  function getDate($) {
    return $('.departure-board li')
      .map((i, _) => {
        const service = $('.single-visit__name', _).text();
        const destination = $('.single-visit__description', _).text();
        const live = $('.sr-only', _).text().includes('Live.');
        const time = $('.single-visit__arrival-time__cell', _).text();

        let datetime;

        if (time === 'Due') {
          datetime = new Date();
        } else if (live) {
          datetime = new Date(Date.now() + parseInt(time, 10) * 1000 * 60);
        } else {
          datetime = new Date();
          const [hour, min] = time.split(':').map((_) => parseInt(_, 10));
          const currHour = new Date().getHours();

          if (hour < currHour) {
            // then it's tomorrow
            datetime.setTime(Date.now() + 24 * 60 * 60 * 1000);
          }
          datetime.setHours(hour);
          datetime.setMinutes(min);
        }

        const res = {
          service,
          destination,
          time: datetime.toISOString(),
          live,
        };

        return res;
      })
      .get();
  }
}

bus-times-node-red.json

[
    {
        "id": "38b8212ab1435bec",
        "type": "tab",
        "label": "Next bus times",
        "disabled": false,
        "info": "Requires two additional parts to work:\n\n 1. cheerio added to the node-red configuration in the npm packages\n 2. node-red HACS companion - to be able to set the bus times",
        "env": []
    },
    {
        "id": "3a1b584daa98ed34",
        "type": "http request",
        "z": "38b8212ab1435bec",
        "name": "",
        "method": "GET",
        "ret": "txt",
        "paytoqs": "ignore",
        "url": "",
        "tls": "",
        "persist": false,
        "proxy": "",
        "insecureHTTPParser": false,
        "authType": "",
        "senderr": false,
        "headers": [
            {
                "keyType": "other",
                "keyValue": "X-Requested-With",
                "valueType": "other",
                "valueValue": "XMLHttpRequest"
            }
        ],
        "x": 410,
        "y": 200,
        "wires": [
            [
                "4a2d55de365bcf89",
                "367a621d38fb9f80"
            ]
        ]
    },
    {
        "id": "1faaae10b0b18097",
        "type": "inject",
        "z": "38b8212ab1435bec",
        "name": "set bus id on deploy",
        "props": [
            {
                "p": "payload"
            }
        ],
        "repeat": "",
        "crontab": "",
        "once": false,
        "onceDelay": 0.1,
        "topic": "",
        "payload": "149000006328",
        "payloadType": "str",
        "x": 150,
        "y": 100,
        "wires": [
            [
                "fd5c357dd630bd2b"
            ]
        ]
    },
    {
        "id": "4a2d55de365bcf89",
        "type": "function",
        "z": "38b8212ab1435bec",
        "name": "parse",
        "func": "const html = msg.payload;\n\nconst $ = cheerio.load(html);\n\nconst res = getDate($);\n\nreturn {\n    payload: res[0].due,\n    schedule: res,\n};\n\nfunction getDate($) {\n    return $('.departure-board li')\n        .map((i, _) => {\n            const route = $('.single-visit__name', _).text();\n            const destination = $('.single-visit__description', _).text();\n            const live = $('.sr-only', _).text().includes('Live.');\n            let estimated = $('.single-visit__arrival-time__cell', _).text();\n\n            let datetime;\n\n            if (estimated === 'Due') {\n                datetime = new Date();\n                estimated = 0;\n            } else if (live) {\n                datetime = new Date(Date.now() + parseInt(estimated, 10) * 1000 * 60);\n                estimated = parseInt(estimated, 10);\n            } else {\n                datetime = new Date();\n                const [hour, min] = estimated.split(':').map((_) => parseInt(_, 10));\n                const currHour = new Date().getHours();\n\n                if (hour < currHour) {\n                    // then it's tomorrow\n                    datetime.setTime(Date.now() + 24 * 60 * 60 * 1000);\n                }\n                datetime.setHours(hour);\n                datetime.setMinutes(min);\n                estimated = null;\n            }\n\n            const res = {\n                route,\n                destination,\n                due: datetime.toJSON(),\n                estimated,\n                live,\n            };\n\n            return res;\n        })\n        .get();\n}",
        "outputs": 1,
        "timeout": 0,
        "noerr": 0,
        "initialize": "",
        "finalize": "",
        "libs": [
            {
                "var": "cheerio",
                "module": "cheerio"
            }
        ],
        "x": 270,
        "y": 280,
        "wires": [
            [
                "6a39627fdba30e30",
                "8589ee006dccfb5b"
            ]
        ]
    },
    {
        "id": "6a39627fdba30e30",
        "type": "debug",
        "z": "38b8212ab1435bec",
        "name": "debug 2",
        "active": false,
        "tosidebar": true,
        "console": true,
        "tostatus": false,
        "complete": "true",
        "targetType": "full",
        "statusVal": "",
        "statusType": "auto",
        "x": 410,
        "y": 360,
        "wires": []
    },
    {
        "id": "8589ee006dccfb5b",
        "type": "ha-sensor",
        "z": "38b8212ab1435bec",
        "name": "Next Bus",
        "entityConfig": "f1181ce963e4b8c2",
        "version": 0,
        "state": "payload",
        "stateType": "msg",
        "attributes": [
            {
                "property": "schedule",
                "value": "$.schedule",
                "valueType": "jsonata"
            }
        ],
        "inputOverride": "allow",
        "outputProperties": [],
        "x": 400,
        "y": 280,
        "wires": [
            []
        ]
    },
    {
        "id": "c5548cd78686562c",
        "type": "cronplus",
        "z": "38b8212ab1435bec",
        "name": "",
        "outputField": "payload",
        "timeZone": "",
        "storeName": "",
        "commandResponseMsgOutput": "output1",
        "defaultLocation": "",
        "defaultLocationType": "default",
        "outputs": 1,
        "options": [
            {
                "name": "schedule",
                "topic": "url",
                "payloadType": "str",
                "payload": "https://www.buses.co.uk/stops/149000006328",
                "expressionType": "cron",
                "expression": "* 6-23 * * *",
                "location": "",
                "offset": "0",
                "solarType": "all",
                "solarEvents": "sunrise,sunset"
            }
        ],
        "x": 120,
        "y": 200,
        "wires": [
            [
                "994818c5617db720"
            ]
        ]
    },
    {
        "id": "367a621d38fb9f80",
        "type": "debug",
        "z": "38b8212ab1435bec",
        "name": "debug 1",
        "active": false,
        "tosidebar": true,
        "console": true,
        "tostatus": false,
        "complete": "true",
        "targetType": "full",
        "statusVal": "",
        "statusType": "auto",
        "x": 610,
        "y": 200,
        "wires": []
    },
    {
        "id": "994818c5617db720",
        "type": "function",
        "z": "38b8212ab1435bec",
        "name": "get bus id",
        "func": "const stopId = context.get(\"busStopId\") || \"149000006328\";\nmsg.url = `https://www.buses.co.uk/stops/${stopId}`;\nreturn msg;",
        "outputs": 1,
        "timeout": 0,
        "noerr": 0,
        "initialize": "",
        "finalize": "",
        "libs": [],
        "x": 260,
        "y": 200,
        "wires": [
            [
                "3a1b584daa98ed34"
            ]
        ]
    },
    {
        "id": "fd5c357dd630bd2b",
        "type": "function",
        "z": "38b8212ab1435bec",
        "name": "save bus id",
        "func": "context.set(\"busStopId\", msg.payload);\nreturn msg;",
        "outputs": 1,
        "timeout": 0,
        "noerr": 0,
        "initialize": "",
        "finalize": "",
        "libs": [],
        "x": 390,
        "y": 100,
        "wires": [
            []
        ]
    },
    {
        "id": "f1181ce963e4b8c2",
        "type": "ha-entity-config",
        "server": "3cacbe68.577112",
        "deviceConfig": "",
        "name": "next_bus",
        "version": 6,
        "entityType": "sensor",
        "haConfig": [
            {
                "property": "name",
                "value": "Next Bus"
            },
            {
                "property": "icon",
                "value": "mdi:bus"
            },
            {
                "property": "entity_picture",
                "value": ""
            },
            {
                "property": "entity_category",
                "value": ""
            },
            {
                "property": "device_class",
                "value": "timestamp"
            },
            {
                "property": "unit_of_measurement",
                "value": ""
            },
            {
                "property": "state_class",
                "value": ""
            }
        ],
        "resend": false,
        "debugEnabled": true
    },
    {
        "id": "3cacbe68.577112",
        "type": "server",
        "name": "Home Assistant",
        "addon": true,
        "rejectUnauthorizedCerts": true,
        "ha_boolean": [],
        "connectionDelay": false,
        "cacheJson": false,
        "heartbeat": true,
        "heartbeatInterval": "10",
        "statusSeparator": "",
        "enableGlobalContextStore": false
    },
    {
        "id": "795661d7d798f7ec",
        "type": "global-config",
        "env": [],
        "modules": {
            "node-red-contrib-home-assistant-websocket": "0.80.3",
            "node-red-contrib-cron-plus": "2.2.4"
        }
    }
]