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

/** core/scss/ui/_buttons.scss `.btn-{size}` modifier classes — 'md' is the default (no class emitted) */
type ButtonSize = 'sm' | 'md' | 'lg' | 'xl'

interface Props {
  /** visible label; for iconOnly buttons it becomes the aria-label */
  text?: string | undefined
  /** passed through literally — the caller owns the relative/absolute convention */
  href?: string
  /** adds target="_blank" rel="noreferrer" */
  external?: boolean
  element?: 'a' | 'button'
  type?: 'button' | 'reset' | 'submit'
  id?: string
  color?: string | undefined
  /** btn-outline-{color} / btn-ghost-{color} style variants */
  variant?: 'outline' | 'ghost'
  size?: ButtonSize | undefined
  block?: boolean
  disabled?: boolean
  /** .btn-loading — CSS-only spinner replacing the button content */
  loading?: boolean
  class?: string
  icon?: string | undefined
  iconColor?: string
  iconEnd?: string
  iconOnly?: boolean
  /** data-bs-toggle="modal" data-bs-target="#modal-{modalId}" */
  modalId?: string
  /** data-bs-toggle="toast" data-bs-target="#toast-{toastId}" */
  toastId?: string
  /** data-bs-dismiss="modal" */
  dismiss?: boolean
  /** data-bs-toggle="dropdown" */
  dropdown?: boolean
  /** remaining attributes (data-*, aria-*, …) are forwarded to the root element */
  [key: string]: unknown
}

const { text, href, external, element, type, id, color, variant, size, block, disabled, loading, class: className, icon, iconColor, iconEnd, iconOnly, modalId, toastId, dismiss, dropdown, ...rest } = Astro.props

// Actions (dropdown/modal/toast/dismiss) and bare buttons use <button>. Real URLs use <a>.
const isAction = Boolean(dropdown || modalId || toastId || dismiss)
const Element = element ?? (href && !isAction ? 'a' : 'button')
const resolvedHref = Element === 'a' ? href : undefined
const resolvedType = Element === 'button' ? (type ?? 'button') : undefined

const classes = ['btn', color ? `btn-${variant ? `${variant}-` : ''}${color}` : variant && `btn-${variant}`, size && size !== 'md' && `btn-${size}`, className, block && 'w-100', iconOnly && 'btn-icon', loading && 'btn-loading', Element === 'a' && disabled && 'disabled']
---

<Element
  href={resolvedHref}
  type={resolvedType}
  id={id}
  class:list={classes}
  target={external ? '_blank' : undefined}
  rel={external ? 'noreferrer' : undefined}
  data-bs-toggle={dropdown ? 'dropdown' : modalId ? 'modal' : toastId ? 'toast' : undefined}
  data-bs-target={!dropdown && modalId ? `#modal-${modalId}` : !dropdown && toastId ? `#toast-${toastId}` : undefined}
  aria-label={iconOnly ? text : undefined}
  data-bs-dismiss={dismiss ? 'modal' : undefined}
  disabled={Element === 'button' && disabled ? true : undefined}
  aria-disabled={Element === 'a' && disabled ? 'true' : undefined}
  tabindex={Element === 'a' && disabled ? -1 : undefined}
  {...rest}
>
  {icon && <Icon name={icon} color={iconColor} />}
  {!iconOnly && text}
  {!iconOnly && iconEnd && <Icon name={iconEnd} class="icon-end" />}
</Element>