const db = require('../lib/connect');

const _ = require('lodash');
const shortHash = require('short-hash');

// exports.create = (req, res) => {

function prepareData(_obj) {
  const newObj = Object.assign({}, _obj);

  newObj.short = _.kebabCase(newObj.name);
  newObj.hash = shortHash(newObj.name);

  return newObj;
}

exports.getAll = () => {
  const outgoing = [];
  const sql = 'SELECT _id, short, hash, name, meat, mealtype FROM menu';

  return new Promise((resolve, reject) => {
    db.all(sql, [], (err, rows) => {
      if (err)
        reject(err);

      rows.forEach((row) => {
        outgoing.push(row);
      });

      resolve(outgoing) ;
    });
  });
};

exports.getOne = (hash) => {
  const sql = 'SELECT * FROM menu WHERE hash  = ?';

  return new Promise((resolve, reject) => {
    db.get(sql, [hash], (err, row) => {
      if (err)
        reject(err);

      if (!err) resolve(row);
    });
  });
};

exports.getOneShort = (short) => {
  const sql = 'SELECT * FROM menu WHERE short  = ?';

  return new Promise((resolve, reject) => {
    db.get(sql, [short], (err, row) => {
      if (err)
        reject(err);

      if (!err) resolve(row);
    });
  });
};

exports.insertOne = (data) => {
  const sql = 'INSERT INTO menu VALUES (?,?,?,?,?,?,?,?,?)';

  const workObj = prepareData(data);

  return new Promise((resolve, reject) => {
    db.run(sql, [null, workObj.name, workObj.url, workObj.md, workObj.short, workObj.hash, workObj.meat, workObj.mealtype, 0], function(err) {
      if (err)
        reject(err);

      resolve({ 'msg':'Row inserted', '_id': this.lastID });
    });
  });
};

exports.deleteOne = (hash) => {
  const sql = 'DELETE FROM menu WHERE hash=?';

  return new Promise((resolve, reject) => {
    db.run('DELETE FROM menu WHERE hash=?', hash, function(err) {
      if (err)
        reject(err);

      resolve({ 'msg':'Row deleted', 'changes': this.changes });
    });
  });
};

exports.updateOne = (data) => {
  const oldHash = data.hash;

  const workObj = prepareData(data);

  const sql = `UPDATE menu
              SET name = ?, url = ?, md = ?, short = ?, hash = ?, meat = ?, mealtype = ?, lastused = ?
              WHERE hash = ?`;

  const newData = [workObj.name, workObj.url, workObj.md, workObj.short, workObj.hash, workObj.meat, workObj.mealtype, workObj.lastused, oldHash];

  return new Promise((resolve, reject) => {
    db.run(sql, newData, function(err) {
      if (err)
        reject(err);

      resolve({ 'msg':'Row updated', 'changes': this.changes });
    });
  });
};