<script>
    import { tick } from 'svelte';
    import { postToChannel } from '../apiServer';
    import { activeChannel } from '../store';

    let self;
    let input;
    $: disabled = $activeChannel == null;

    async function handleSubmit(event) {
        disabled = true;
        // TODO try/catch:
        await postToChannel($activeChannel?.id, input);
        input = '';
        disabled = false;
        await tick();
        self.focus();
    }
</script>

<form on:submit|preventDefault={handleSubmit}>
    <input type="text" class="border rounded px-3" bind:this={self} bind:value={input} disabled={disabled}>
    <button type="submit">➤</button>
</form>

<style>
    input[type="text"] {
        /* TODO: percentage won't handle zoom in/out well. */
        width: 96%;
    }
</style>
