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@JirkaChadima JirkaChadima/index.html
Last active Jul 1, 2019

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Simple sample booking page for Winding Tree
<html lang="en">
<head>
<meta charset="utf-8">
<title>Winding Tree simple sample booking page</title>
<link rel="stylesheet" href="https://stackpath.bootstrapcdn.com/bootstrap/4.2.1/css/bootstrap.min.css" integrity="sha384-GJzZqFGwb1QTTN6wy59ffF1BuGJpLSa9DkKMp0DgiMDm4iYMj70gZWKYbI706tWS" crossorigin="anonymous">
</head>
<body class="container">
<div id="error" class="alert"></div>
<div id="hotel-description">
<h1 id="hotel-name"></h1>
<div id="hotel-address"></div>
</div>
<hr />
<div id="stay-details">
<p>
<label for="room-types-select">Select a room</label>
<select id="room-types-select" name="room-types-select" class="form-control"></select>
</p>
<p>
<label for="arrival-date">Date of arrival</label>
<input type="date" id="arrival-date" name="arrival-date" class="form-control" />
</p>
<p>
<label for="arrival-date">Date of departure</label>
<input type="date" id="departure-date" name="departure-date" class="form-control" />
</p>
</div>
<hr />
<div id="offer">
<div id="offer-price"></div>
<div id="offer-quantity"></div>
</div>
<hr />
<button type="button" disabled="disabled" id="book-button" class="btn btn-primary">Book a room!</button>
<script type="text/javascript" src="https://unpkg.com/@windingtree/wt-pricing-algorithms@0.6.2/dist/umd/wt-pricing-algorithms.js"></script>
<script type="text/javascript" src="https://unpkg.com/@windingtree/wt-js-libs@0.13.2/dist/umd/wt-js-libs.js"></script>
<script type="text/javascript" src="https://unpkg.com/dayjs@1.8.2/dayjs.min.js"></script>
<script type="text/javascript" src="https://unpkg.com/web3-utils@1.0.0-beta.55/dist/web3-utils.umd.js"></script>
<script type="text/javascript">
(() =>{
let hotelDataFromApi;
let resultingPrice;
const errorDiv = document.getElementById('error');
const bookButton = document.getElementById('book-button');
const wtReadApi = 'https://lisbon-api.windingtree.com';
const hotelId = '0xcca04822Ad9c178bdf9da9091218e241f4C28042';
const fields = [
'name',
'address',
'currency',
'cancellationPolicies',
'defaultCancellationAmount',
'bookingUri',
'roomTypes.id',
'roomTypes.name',
'roomTypes.occupancy',
'availability',
'ratePlans',
];
const displayHotelData = (hotelData) => {
const address = `
<span>${hotelData.address.road} ${hotelData.address.houseNumber},</span>
<span>${hotelData.address.city} ${hotelData.address.postcode}</span>
<span>${hotelData.address.countryCode}</span>
`;
document.getElementById('hotel-name').innerHTML = hotelData.name;
document.getElementById('hotel-address').innerHTML = address;
const roomTypesSelect = document.getElementById('room-types-select');
hotelData.roomTypes.map((rt) => {
roomTypesSelect.insertAdjacentHTML('beforeend', `
<option id="rt-${rt.id}" value="${rt.id}">${rt.name}</option>
`);
});
};
fetch(`${wtReadApi}/hotels/${hotelId}?fields=${fields.join(',')}`)
.then((response) => {
if (response.status > 299) {
throw new Error('Bad server response.');
}
return response.json();
})
.then((data) => {
hotelDataFromApi = data;
displayHotelData(data);
})
.catch((err) => {
errorDiv.innerHTML = err.toString();
});
const guests = [
{"name": "Elizabeth", "surname": "Crown", "age": 25},
{"name": "Philip", "surname": "Crown", "age": 30},
];
const roomTypesSelect = document.getElementById('room-types-select');
const arrivalDateInput = document.getElementById('arrival-date');
const departureDateInput = document.getElementById('departure-date');
const recomputePriceAndAvailability = () => {
const roomType = roomTypesSelect.value;
const arrival = dayjs(arrivalDateInput.value);
const departure = dayjs(departureDateInput.value);
// Basic validation
if (!roomType ||
!arrival.isValid() ||
!departure.isValid() ||
departure.isBefore(arrival) ||
arrival.isBefore(dayjs())
) {
bookButton.disabled = 'disabled';
return;
}
// Price
const pc = new window.wtPricingAlgorithms.prices.PriceComputer(
hotelDataFromApi.roomTypes,
hotelDataFromApi.ratePlans,
hotelDataFromApi.currency
);
resultingPrice = pc.getBestPrice(
new Date(), // Booking date
arrival,
departure,
guests,
hotelDataFromApi.currency,
roomType
)
// We might not get a price - room is meant for a different number of people or pricing data is not available
.filter((p) => p.id === roomType && p.prices.length);
if (resultingPrice.length) {
// Different price resolution strategies might return more than one price
const actualPrice = resultingPrice[0].prices[0];
document.getElementById('offer-price').innerHTML = `Price ${actualPrice.total.format()} ${actualPrice.currency}`;
} else {
document.getElementById('offer-price').innerHTML = 'Price unavailable';
}
// Availability
const indexedAvailability = window.wtPricingAlgorithms.availability.indexAvailability(hotelDataFromApi.availability.roomTypes);
const roomAvailability = window.wtPricingAlgorithms.availability.computeAvailability(
arrival,
departure,
guests.length,
hotelDataFromApi.roomTypes,
indexedAvailability
).filter((ra) => ra.roomTypeId === roomType && ra.quantity);
if (roomAvailability.length) {
const actualQuantity = roomAvailability[0].quantity;
document.getElementById('offer-quantity').innerHTML = `Available: ${actualQuantity}`;
} else {
// Room might be sold out, unavailable for arrival or departure on given dates etc.
document.getElementById('offer-quantity').innerHTML = 'Unavailable';
}
if (resultingPrice.length && roomAvailability.length) {
bookButton.removeAttribute('disabled');
} else {
bookButton.disabled = true;
}
}
roomTypesSelect.addEventListener('change', recomputePriceAndAvailability);
arrivalDateInput.addEventListener('change', recomputePriceAndAvailability);
departureDateInput.addEventListener('change', recomputePriceAndAvailability);
bookButton.addEventListener('click', async () => {
const customer = {
name: 'Elizabeth',
surname: 'Crown',
email: 'elizabeth@example.com',
};
const booking = {
arrival: dayjs(arrivalDateInput.value).format('YYYY-MM-DD'),
departure: dayjs(departureDateInput.value).format('YYYY-MM-DD'),
guestInfo: guests.map((g, i) => Object.assign({id: `guest-${i}`}, g)),
rooms: [
{
id: roomTypesSelect.value,
guestInfoIds: ['guest-0', 'guest-1']
}
]
};
const actualPrice = resultingPrice[0].prices[0];
const pricing = {
currency: actualPrice.currency,
total: actualPrice.total.value,
cancellationFees: window.wtPricingAlgorithms.cancellationFees.computeCancellationFees(
new Date(),
dayjs(arrivalDateInput.value),
hotelDataFromApi.cancellationPolicies,
hotelDataFromApi.defaultCancellationAmount
)
};
/*
const wallet = window.wtJsLibs.createWallet({...});
wallet.unlock(walletPassword);
const serializedRequest = JSON.stringify({
originAddress: wallet.address,
customer: customer,
hotelId: hotelId,
booking: booking,
pricing: pricing,
});
const signature = await wallet.signData(window.Web3Utils.soliditySha3(serializedRequest));
*/
fetch(`${hotelDataFromApi.bookingUri}/booking`, {
method: 'POST',
body: serializedRequest,
headers: {
'Content-Type': 'application/json',
// 'x-wt-signature': signature, // optional
},
})
.then((response) => {
if (response.status > 299) {
throw new Error('Cannot save booking!');
}
return response.json();
})
.then((data) => {
errorDiv.innerHTML = `Your booking was accepted with the state ${data.status} under ID ${data.id}`;
})
.catch((err) => {
errorDiv.innerHTML = err.toString();
});
});
})();
</script>
</body>
</html>
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