67 lines
2 KiB
Svelte
67 lines
2 KiB
Svelte
<script lang="ts">
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import {Unit} from "../../Models/Unit";
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import {Store, UIEventSource} from "../../Logic/UIEventSource";
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import Tr from "../Base/Tr.svelte";
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import {onDestroy} from "svelte";
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export let unit: Unit
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/**
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* The current value of the input field
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* Not necessarily a correct number
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*/
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export let textValue: UIEventSource<string>
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/**
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* The actual _valid_ value that is upstreamed
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*/
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export let upstreamValue: Store<string>
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let isSingle: Store<boolean> = textValue.map(v => Number(v) === 1)
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export let selectedUnit: UIEventSource<string> = new UIEventSource<string>(undefined)
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export let getCountry = () => "be"
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console.log("Unit", unit)
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onDestroy(upstreamValue.addCallbackAndRun(v => {
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if (v === undefined) {
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if (!selectedUnit.data) {
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selectedUnit.setData(unit.getDefaultDenomination(getCountry).canonical)
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}
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return
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}
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const selected = unit.findDenomination(v, getCountry)
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if (selected === undefined) {
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selectedUnit.setData(unit.getDefaultDenomination(getCountry).canonical)
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return
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}
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const [value, denomination] = selected
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selectedUnit.setData(denomination.canonical)
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return
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}))
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onDestroy(textValue.addCallbackAndRunD(v => {
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// Fallback in case that the user manually types a denomination
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const [value, denomination] = unit.findDenomination(v, getCountry)
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if (value === undefined || denomination === undefined) {
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return
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}
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textValue.setData(value)
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selectedUnit.setData(denomination.canonical)
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}))
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</script>
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<select bind:value={$selectedUnit}>
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{#each unit.denominations as denom (denom.canonical)}
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<option value={denom.canonical}>
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{#if $isSingle}
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<Tr t={denom.humanSingular}/>
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{:else }
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<Tr t={denom.human}/>
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{/if}
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</option>
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{/each}
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</select>
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