/**
 * Generates the base types file content
 */
export function generateBaseTypes() {
  return `// AUTO-GENERATED FILE. DO NOT EDIT.

// Brand symbol for type safety
declare const __UNITY_ILLUSTRATION: unique symbol

export interface IllustrationAssetBrand {
  readonly [__UNITY_ILLUSTRATION]: true
}

// Base interfaces
export interface BaseSvgAsset {
  readonly type: 'svg'
  readonly url: string
  readonly animated: false
}

export interface BaseImageAsset {
  readonly type: 'image'
  readonly url: string
  readonly animated: boolean
}

export interface BaseAnimatedImageAsset extends BaseImageAsset {
  readonly animated: true
  readonly dimensions: {
    readonly width: number
    readonly height: number
  }
  readonly category: 'animation'
}

// Branded wrapper type
export type IllustrationAsset<T extends (BaseSvgAsset | BaseImageAsset | BaseAnimatedImageAsset) & { readonly name: string }> =
  T & IllustrationAssetBrand
`
}