import type { Morfo } from '../types';
import { v } from '../types';

export const carouselMorfo = {
	name: 'Carousel',
	kebab: 'carousel',
	scope: ['soma', 'sema', 'eidos'],
	expression: 'family-default',
	apg: 'https://www.w3.org/WAI/ARIA/apg/patterns/carousel/',
	texts: {
		label: '#?components.carousel.label|Carousel',
		prev: '#?components.carousel.prev|Previous slide',
		next: '#?components.carousel.next|Next slide',
		indicator: '#?components.carousel.indicator|Go to slide {{index}}',
		slide: '#?components.carousel.slide|Slide {{index}} of {{total}}'
	},
	events: [
		{
			// Slide change — user-initiated (button/indicator) or auto-rotation.
			// Per book cap. 27 §5 shift.navigate ("Página A → página B"). Variant
			// `slide` preserves the carousel-specific label.
			name: 'shift-navigate-slide',
			semantic: {
				family: 'shift',
				verb: 'navigate',
				target: v.partRef('item'),
				sequence: 'post'
			}
		}
	],
	direction: {},
	focus: {
		kind: 'roving',
		parts: ['item'],
		orientation: 'horizontal',
		executor: {
			custom:
				'Slide membership is viewport-virtualised: the roving stop follows the scroller and snap state, not a static candidate query — the shared primitive cannot see it (eje focus-first F2).'
		}
	},

	parts: [
		{
			name: 'Provider',
			kebab: 'provider',
			archetype: 'provider',
			kind: 'public',
			defaultElement: 'section',
			role: 'region',
			optional: false,
			data: [
				{ attr: 'data-orientation', values: ['horizontal', 'vertical'] },
				{ attr: 'data-dir', values: ['ltr', 'rtl'], severity: 'optional' },
				{ attr: 'data-disabled', severity: 'optional' },
				{ attr: 'data-dragging', severity: 'optional' },
				{ attr: 'data-autoplay', severity: 'optional' }
			],
			aria: [
				{ attr: 'aria-roledescription', value: v.literal('carousel') },
				{
					attr: 'aria-label',
					value: v.translationRef('#?components.carousel.label|Carousel'),
					severity: 'recommended'
				}
			],
			keyboard: [
				{ key: 'ArrowRight', action: 'next-item' },
				{ key: 'ArrowLeft', action: 'prev-item' },
				{ key: 'ArrowDown', action: 'next-item' },
				{ key: 'ArrowUp', action: 'prev-item' },
				{ key: 'Home', action: 'first-item' },
				{ key: 'End', action: 'last-item' }
			]
		},
		{
			name: 'Viewport',
			kebab: 'viewport',
			archetype: 'viewport',
			kind: 'public',
			defaultElement: 'div',
			optional: false,
			data: [{ attr: 'data-orientation', values: ['horizontal', 'vertical'] }],
			aria: []
		},
		{
			name: 'ItemGroup',
			kebab: 'item-group',
			archetype: 'group',
			kind: 'public',
			defaultElement: 'div',
			optional: false,
			data: [
				{ attr: 'data-orientation', values: ['horizontal', 'vertical'] },
				{ attr: 'data-dragging', severity: 'optional' }
			],
			aria: []
		},
		{
			name: 'Item',
			kebab: 'item',
			archetype: 'item',
			kind: 'public',
			defaultElement: 'div',
			role: 'group',
			optional: false,
			states: ['active', 'inactive'],
			data: [
				{ attr: 'data-state', values: ['active', 'inactive'] },
				{ attr: 'data-index' },
				{ attr: 'data-orientation', values: ['horizontal', 'vertical'] }
			],
			aria: [
				{ attr: 'aria-roledescription', value: v.literal('slide') },
				{ attr: 'aria-label', value: v.propRef('index'), severity: 'recommended' }
			]
		},
		{
			name: 'PrevTrigger',
			kebab: 'prev-trigger',
			archetype: 'trigger',
			kind: 'public',
			defaultElement: 'button',
			role: 'button',
			optional: true,
			data: [{ attr: 'data-disabled', severity: 'optional' }],
			aria: [
				{ attr: 'type', value: v.literal('button') },
				{
					attr: 'aria-label',
					value: v.translationRef('#?components.carousel.prev|Previous slide'),
					severity: 'recommended'
				}
			]
		},
		{
			name: 'NextTrigger',
			kebab: 'next-trigger',
			archetype: 'trigger',
			kind: 'public',
			defaultElement: 'button',
			role: 'button',
			optional: true,
			data: [{ attr: 'data-disabled', severity: 'optional' }],
			aria: [
				{ attr: 'type', value: v.literal('button') },
				{
					attr: 'aria-label',
					value: v.translationRef('#?components.carousel.next|Next slide'),
					severity: 'recommended'
				}
			]
		},
		{
			name: 'IndicatorGroup',
			kebab: 'indicator-group',
			archetype: 'group',
			kind: 'public',
			defaultElement: 'div',
			role: 'tablist',
			optional: true,
			data: [{ attr: 'data-orientation', values: ['horizontal', 'vertical'] }],
			aria: [{ attr: 'aria-orientation', value: v.propRef('orientation') }]
		},
		{
			name: 'Indicator',
			kebab: 'indicator',
			archetype: 'indicator',
			kind: 'public',
			defaultElement: 'button',
			role: 'tab',
			optional: true,
			states: ['active', 'inactive'],
			data: [{ attr: 'data-state', values: ['active', 'inactive'] }, { attr: 'data-index' }],
			aria: [
				{ attr: 'type', value: v.literal('button') },
				{ attr: 'aria-selected', value: v.stateRef('active') },
				{ attr: 'aria-label', value: v.propRef('ariaLabel'), severity: 'recommended' }
			]
		}
	]
} as const satisfies Morfo;