<script>
    import { tick } from 'svelte';
    import { postToChannel } from '$lib/apiServer';

    export let channel = null;
    let input;
    let value;
    let sending = false;

    $: disabled = (channel === null);

    async function handleSubmit() {
        if (channel !== null) {
            sending = true;
            // TODO try/catch:
            await postToChannel(channel, value);
            sending = false;
            value = '';
            await tick();
            input.focus();
        }
    }
</script>

<form on:submit|preventDefault={handleSubmit} class="flex flex-row flex-nowrap">
    <input bind:this={input} bind:value={value} disabled={sending || disabled} type="search" class="flex-auto h-6 input rounded-r-none" />
    <button color="primary variant-filled-secondary" type="submit" class="flex-none w-6 h-6 btn-icon variant-filled rounded-l-none">&raquo;</button>
</form>
