import { getFiles } from './utils/getFiles.ts'
import { squashExportNodes } from './utils/squashExportNodes.ts'
import { squashImportNodes } from './utils/squashImportNodes.ts'
import { squashTextNodes } from './utils/squashTextNodes.ts'

import type * as KubbFile from '@kubb/fs/types'
import type { DOMElement } from './types.ts'

export type RendererResult = {
  output: string
  imports: Array<KubbFile.Import>
  exports: Array<KubbFile.Export>
  files: Array<KubbFile.File>
}

export function renderer(node: DOMElement): RendererResult {
  const imports = squashImportNodes(node)
  const exports = squashExportNodes(node)
  const files = getFiles(node)
  const text = squashTextNodes(node)
  const output = files.size
    ? [...files]
        .flatMap((file) => [...file.sources].map((item) => item.value))
        .filter(Boolean)
        .join('\n\n')
    : text

  return {
    output,
    files: [...files],
    imports: [...imports],
    exports: [...exports],
  }
}