tabler/shared/ui/Select.astro

---
// Renders a <select id="select-{id}"> populated from @data/selects.json (+ people)
// and its TomSelect init script.
// TODO: optgroup / flag / label indicator branches (unused on the modals page).
import selects from '@data/selects.json';
import people from '@data/people.json';
import { firstLetters } from '@shared/lib/string-format';
import CaptureScript from '../components/CaptureScript.astro';

interface Props {
	id?: string;
	key?: string;
	value?: string;
	class?: string;
	state?: string;
	placeholder?: string;
	indicator?: string;
	multiple?: boolean;
	values?: string[];
	showSearch?: boolean;
}

const {
	id: idProp,
	key: keyProp,
	value = '',
	class: className,
	state,
	placeholder,
	indicator,
	multiple,
	values,
	showSearch,
} = Astro.props;

const id = idProp ?? keyProp;
const key = keyProp ?? 'people';
const data = (selects as Record<string, any>)[key] ?? {};

const selectClass = [
	'form-select',
	className,
	state && `is-${state}`,
]

const isMultiple = Boolean(multiple || data.multiple);

interface Person {
	id: string;
	full_name: string;
	photo?: string;
}

// Build the option list.
type Opt = { value: string; text: string; custom?: string; selected?: boolean };
type Group = { label: string; options: Opt[] };
let options: Opt[] = [];
let optgroups: Group[] = [];

if (values) {
	options = values.map((v) => ({ value: v, text: v }));
} else if (data.data === 'people') {
	options = (people as Person[]).slice(0, 20).map((person) => {
		let custom: string | undefined;
		if (indicator === 'avatar') {
			custom = person.photo
				? `<span class="avatar avatar-xs" style="background-image: url(./${person.photo})"></span>`
				: `<span class="avatar avatar-xs">${firstLetters(person.full_name)}</span>`;
		}
		return { value: person.id, text: person.full_name, custom };
	});
} else if (data.data === 'optgroup') {
	optgroups = (data.options as { title: string; options: string[] }[]).map((group) => ({
		label: group.title,
		options: group.options.map((option) => ({ value: option, text: option })),
	}));
} else if (Array.isArray(data.options)) {
	options = (data.options as string[]).map((option) => ({ value: option, text: option }));
} else if (data.options) {
	// object of { key: { name, flag?, label?, selected? } } — with optional indicator
	options = Object.entries(data.options as Record<string, any>).map(([optKey, v]) => {
		let custom: string | undefined;
		if (indicator === 'flag') custom = `<span class="flag flag-xs flag-country-${v.flag}"></span>`;
		else if (indicator === 'label') custom = `<span class="badge bg-primary-lt">${v.label}</span>`;
		return { value: optKey, text: v.name, custom, selected: Boolean(v.selected) };
	});
}

const selectId = id ? `select-${id}` : undefined;
---

{
	id && (
		<select
			class:list={selectClass}
			data-placeholder={placeholder}
			id={`select-${id}`}
			value={value}
			multiple={isMultiple ? '' : undefined}
		>
			{
				optgroups.map((group) => (
					<optgroup label={group.label}>
						{group.options.map((option) => (
							<option value={option.value}>{option.text}</option>
						))}
					</optgroup>
				))
			}
			{
				options.map((option) => (
					<option
						value={option.value}
						data-custom-properties={option.custom}
						selected={option.selected || undefined}
					>
						{option.text}
					</option>
				))
			}
		</select>
	)
}
{
	id && (
		<CaptureScript>
			<!-- BEGIN SELECT -->
			<script define:vars={{ selectId, showSearch }}>
				function initSelect() {
					window.tabler_select ??= {};

					const renderOption = (data, escape) => {
						if (data.customProperties) {
							return `<div><span class="dropdown-item-indicator">${data.customProperties}</span>${escape(data.text)}</div>`;
						}
						return `<div>${escape(data.text)}</div>`;
					};

					window.TomSelect &&
						(window.tabler_select[selectId] = new TomSelect(document.getElementById(selectId), {
							copyClassesToDropdown: false,
							dropdownParent: 'body',
							...(showSearch ? {} : { controlInput: '<input>' }),
							render: {
								item: renderOption,
								option: renderOption,
							},
						}));
				}

				document.readyState !== 'loading' ? initSelect() : document.addEventListener('DOMContentLoaded', initSelect, { once: true });
			</script>
			<!-- END SELECT -->
		</CaptureScript>
	)
}