var fetch = require('fetch')
var db = require('../db')

module.exports = {

  route: (app) => {
    app.put('/raw/import/thread/',  importRaw(db.Thread),  (req, res) => res.send({ status: 'ok' }))
    app.put('/raw/import/keyword/', importRaw(db.Keyword), (req, res) => res.send({ status: 'ok' }))
    app.put('/raw/import/file/',    importRaw(db.File),    (req, res) => res.send({ status: 'ok' }))
    app.put('/raw/import/comment/', importRaw(db.Comment), (req, res) => res.send({ status: 'ok' }))

    app.get('/raw/export/thread/:id',  exportThread,  (req, res) => res.send({ status: 'ok' }))
    app.get('/raw/export/keyword/:id', exportKeyword, (req, res) => res.send({ status: 'ok' }))

    function importRaw (model) {
      return (req, res, next) => {
        new model(req.body).save().then((el) => {
          res.el = el;
          next()
        })
      }
    }
    function exportKeyword (req, res, next) {
      db.getKeyword(req.params.keyword).then(keyword => {
        send("keyword", keyword)
        return db.getThreadsForKeyword(keyword)
      }).then(threads => {
        var promises = threads.map(thread => {
          exportThread({ params: { id: thread.get('id') } }, res, function(){})
        })
        return Promise.all(promises)
      }).then( () => {
        next()
      })
    }
    function exportThread (req, res, next) {
      return db.getThread(req.params.id).then(thread => {
        send("thread", thread)
        return db.getCommentsForThread(req.params.id)
      }).then(comments => {
        var promises = comments.map(comment => send("comment", comment))
        return Promise.all(promises)
      }).then( () => {
        return db.getFilesForThread(req.params.id)
      }).then(files => {
        var promises = files.map(comment => send("comment", comment))
        return promises
      }).then( () => {
        next()
      })
    }
    function send(type, data){
      var json = data.toJSON()
      fetch("https://bucky.asdf.us/raw/import/" + type, {
        method: 'PUT',
      }).then(() => {})
    }

  }
}