import { parseFile } from '../file/util.mjs'
import { parseArticle, parseArticles } from '../article/util.mjs'

export async function getTree(ctx) {
  let res = await ctx.db.safeCallProc('common.pages_get_tree', [])
  let out = []
  let children = []
  let map = new Map()
  for (let page of res.first) {
    if (!page.parent_id) {
      out.push(page)
    } else {
      children.push(page)
    }
    map.set(page.id, page)
  }
  for (let page of children) {
    let parent = map.get(page.parent_id)
    if (!parent.children) {
      parent.children = []
    }
    parent.children.push(page)
  }
  return {
    tree: out
  }
}

export async function getPage(ctx, path, page = 0, per_page = 10) {
  let res = await ctx.db.safeCallProc('common.pages_get_single', [path, page, per_page])

  let articleMap = new Map()

  let out = {
    page: res.results[0][0] || null,
    articles: parseArticles(res.results[1]),
    total_articles: res.results[2][0].total_articles,
    featured: parseArticle(res.results[4][0]),
  }
  out.articles.forEach(article => {
    article.files = []
    articleMap.set(article.id, article)
  })
  res.results[3].forEach(file => {
    articleMap.get(file.id).files.push(parseFile(file))
  })
  return out
}