refactor(ads): [PKG-ADS-03] split TypeScript lifecycle and preserve legacy behavior

packages/artplayer-plugin-ads/src/index.ts

@@ -0,0 +1,25 @@
+import type Artplayer from 'artplayer'
+import type { Input, Result } from './types'
+import { normalizeOptions } from './options'
+import { createSession } from './session'
+import style from './style.less?inline'
+
+export default function artplayerPluginAds(input?: Input) {
+  return (art: Artplayer): Result => {
+    // Legacy core declarations type instance.constructor as Function. Check the
+    // actual capabilities before using its existing static validator/utilities.
+    const constructor = art.constructor as typeof Artplayer
+    if (typeof constructor.validator !== 'function'
+      || !['append', 'query', 'setStyle'].every(name => typeof Reflect.get(constructor.utils || {}, name) === 'function')) { throw new Error('Artplayer Ads requires the core validator and DOM utilities') }
+    const option = normalizeOptions(input, constructor.validator)
+    const { volume, volumeClose, fullscreenOn, fullscreenOff, loading } = art.icons
+    return createSession(art, option, { volume, volumeClose, fullscreenOn, fullscreenOff, loading }, constructor.utils)
+  }
+}
+
+if (typeof document !== 'undefined' && !document.getElementById('artplayer-plugin-ads')) {
+  const element = document.createElement('style')
+  element.id = 'artplayer-plugin-ads'
+  element.textContent = style
+  document.head.appendChild(element)
+}