---
import Icon from './Icon.astro'

interface Props {
  items?: string[]
  icons?: string[]
  disabled?: number[]
  default?: number
  vertical?: boolean
  /** core/scss/ui/_segmented.scss `.nav-{size}` modifier classes */
  size?: 'sm' | 'lg' | undefined
  /** w-100 — stretch across the container */
  block?: boolean
  name?: string
  class?: string
}

const { items, icons, disabled, default: defaultIndex = 1, vertical, size, block, name, class: className } = Astro.props

const itemsArr = items ?? []
const iconsArr = icons ?? []
const count = Math.max(itemsArr.length, iconsArr.length)

const navClasses = ['nav', 'nav-segmented', vertical && 'nav-segmented-vertical', size && `nav-${size}`, block && 'w-100', className]

const rows = Array.from({ length: count }, (_, i) => {
  const forloopIndex = i + 1
  const index = String(forloopIndex)
  const isDisabled = disabled?.includes(forloopIndex) ?? false
  const isDefault = forloopIndex === defaultIndex
  const linkClasses = ['nav-link', isDisabled && 'disabled', isDefault && !name && 'active']
  return { forloopIndex, index, isDisabled, isDefault, linkClasses, icon: iconsArr[i], item: itemsArr[i] }
})
---

<nav class:list={navClasses} role={name ? undefined : 'tablist'} aria-orientation={!name && vertical ? 'vertical' : undefined}>
  {
    rows.map((row) => {
      const Element = name ? 'label' : 'button'
      return (
        <Fragment>
          {name && <input type="radio" class="nav-link-input" name={name} id={`segmented-${name}-${row.index}`} checked={row.isDefault} />}
          <Element for={name ? `segmented-${name}-${row.index}` : undefined} class:list={row.linkClasses} role={name ? undefined : 'tab'} data-bs-toggle={name ? undefined : 'tab'} aria-selected={name ? undefined : row.isDefault ? 'true' : 'false'} aria-disabled={row.isDisabled ? 'true' : undefined}>
            {row.icon && <Icon name={row.icon} class="nav-link-icon" />}
            {row.item && row.item}
          </Element>
        </Fragment>
      )
    })
  }
</nav>