const {
  db,
  _
} = require("../../utils/http");
async function MediaService(data) {
  const list = [];
  const skip = (data.skip || 0) * (data.limit || 100);
  const orilist = await db.collection('AudioAndVideo').where({
    type: _.eq(data.typeMedia)
  }).skip(skip).limit(data.limit || 100).get();
  const keysOir = {};

  for (let i = 0; i < orilist.data.length; i++) {
    const v = orilist.data[i];
    if (keysOir[v.localtion] !== undefined) {
      // 已经存在
      list[keysOir[v.localtion]].child.push({
        url: v.url,
        title: v.title,
        cover: v.cover,
        id: v._id,
        type: v.type
      })
    } else {
      // push
      keysOir[v.localtion] = list.length;
      list.push({
        location: v.localtion,
        date: v.uptime,
        id: v._id,
        child: [{
          url: v.url,
          title: v.title,
          cover: v.cover,
          id: v._id,
          type: v.type
        }]
      })
    }
  }
  return list
}

async function MediaOnceService(data) {
  const list = [];
  const orilist = await db.collection('AudioAndVideo').where({
    type: _.eq(data.typeMedia),
    localtion: _.eq(data.group)
  }).get();
  const keysOir = {};
  for (let i = 0; i < orilist.data.length; i++) {
    const v = orilist.data[i];
    if (keysOir[v.localtion] !== undefined) {
      // 已经存在
      list[keysOir[v.localtion]].child.push({
        url: v.url,
        title: v.title,
        cover: v.cover,
        id: v._id
      })
    } else {
      // push
      keysOir[v.localtion] = list.length;
      list.push({
        location: v.localtion,
        date: v.uptime,
        id: v._id,
        child: [{
          url: v.url,
          title: v.title,
          cover: v.cover,
          id: v._id
        }]
      })
    }
  }
  return list
}

module.exports = {
  MediaService,
  MediaOnceService
}