Files
svkit-7guis/src/routes/3_flight_broker/+page.svelte

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1.9 KiB
Svelte

<script lang="ts">
import { parse, format } from "date-fns";
const initialDate = format(new Date(), 'dd/MM/yyyy');
let flightType = $state("one-way");
let outbound = $state(initialDate);
let retflight = $state(initialDate);
function isValidDate(d: Date) {
return !Number.isNaN(d.getDate());
}
let outboundDate = $derived(parse(outbound, 'dd/MM/yyyy', new Date()));
let retflightDate = $derived(parse(retflight, 'dd/MM/yyyy', new Date()));
let outboundValid = $derived(isValidDate(outboundDate));
let retflightValid = $derived(isValidDate(retflightDate));
function isBookDisabled() {
const valid = outboundValid && (flightType === "return" ? retflightValid && retflightDate > outboundDate : true);
return !valid;
}
function onClickBook() {
switch (flightType) {
case "one-way":
alert(`You have booked a one-way flight on ${outbound}.`);
break;
case "return":
alert(`You have booked a return flight on ${outbound} and ${retflight}.`);
break;
default:
alert("Unknown Status");
}
}
</script>
<div class="flex flex-col items-center gap-4 w-80 mx-auto">
<select class="select" bind:value={flightType}>
<option value="one-way">One-way flight</option>
<option value="return">Return flight</option>
</select>
<label class={["input w-full", !outboundValid && "input-error"]}>
<span class="label">Outbound Flight</span>
<input type="text" placeholder="27/03/2025" bind:value={outbound}/>
</label>
<label class={["input w-full", flightType === 'return' && !retflightValid && "input-error"]}>
<span class="label">Return Flight</span>
<input type="text" placeholder="31/03/2025" bind:value={retflight} disabled={flightType !== 'return'}/>
</label>
<button class="btn btn-primary w-full" disabled={isBookDisabled()} onclick={onClickBook}>Book</button>
</div>