const bcrypt = require('bcryptjs');
const mongoose = require('mongoose');
const validator = require('validator');
const jwt = require('jsonwebtoken');
const _ = require('lodash');

const tools = require('../tools/general');

const { Settings } = require('../models/settings');
const { ExtraList } = require('../models/extralist');

const shared_consts = require('../tools/shared_nodejs');
const queryclass = require('../classes/queryclass');

mongoose.Promise = global.Promise;

mongoose.level = "F";
// Resolving error Unknown modifier: $pushAll
mongoose.plugin(schema => {
  schema.options.usePushEach = true
});

mongoose.set('debug', process.env.DEBUG);

const UserSchema = new mongoose.Schema({
  userId: {
    type: String,
  },
  email: {
    type: String,
    required: true,
    trim: true,
    minlength: 1,
    unique: false,
    /*validate: {
      validator: validator.isEmail,
      message: '{VALUE} is not a valid email'
    }*/
  },
  idapp: {
    type: String,
    required: true,
  },
  ind_order: {
    type: Number
  },
  username: {
    type: String,
    required: true,
    trim: true,
    minlength: 6,
    unique: false,
  },
  name: {
    type: String,
    trim: true,
  },
  surname: {
    type: String,
    trim: true,
  },
  password: {
    type: String,
    require: true,
    minlength: 6,
  },
  lang: {
    type: String,
    require: true,
  },
  linkreg: {
    type: String,
    required: false
  },
  verified_email: {
    type: Boolean,
  },
  made_gift: {
    type: Boolean,
  },
  tokens: [{
    access: {
      type: String,
      required: true
    },
    browser: {
      type: String,
      required: true
    },
    token: {
      type: String,
      required: true
    },
    date_login: {
      type: Date
    },
  }],
  perm: {
    type: Number
  },
  ipaddr: {
    type: String,
  },
  date_reg: {
    type: Date,
  },
  date_temp_reg: {
    type: Date,
  },
  date_tokenforgot: {
    type: Date
  },
  tokenforgot: {
    type: String,
  },
  lasttimeonline: {
    type: Date
  },
  news_on: {
    type: Boolean
  },
  aportador_solidario: {
    type: String,
  },
  aportador_solidario_nome_completo: {
    type: String,
  },
  aportador_solidario_ind_order: {
    type: Number,
  },
  note: {
    type: String,
  },
  profile: {
    img: {
      type: String
    },
    nationality: {
      type: String
    },
    intcode_cell: {
      type: String
    },
    iso2_cell: {
      type: String
    },
    cell: {
      type: String
    },
    country_pay: {
      type: String
    },
    email_paypal: {
      type: String
    },
    paymenttypes: [],
    username_telegram: {
      type: String
    },
    teleg_id: {
      type: Number
    },
    teleg_checkcode: {
      type: Number
    },
    manage_telegram: {
      type: Boolean
    },
    dateofbirth: {
      type: Date,
    },
    my_dream: {
      type: String,
    },
    saw_zoom_presentation: {
      type: Boolean
    },
    sex: {
      type: Number,
    },
  },

});

UserSchema.methods.toJSON = function () {
  const user = this;
  const userObject = user.toObject();

  return _.pick(userObject, ['_id', ...shared_consts.fieldsUserToChange()]);
};

UserSchema.methods.generateAuthToken = function (req) {
  // console.log("GENERA TOKEN : ");
  const user = this;

  const useragent = req.get('User-Agent');
  // tools.mylog("GENERATE USER-AGENT = ", useragent);

  const access = 'auth';
  const browser = useragent;
  const token = jwt.sign({ _id: user._id.toHexString(), access }, process.env.SIGNCODE).toString();
  const date_login = new Date();

  // CANCELLA IL PRECEDENTE !
  user.tokens = user.tokens.filter(function (tok) {
    return (tok.access !== access) || ((tok.access === access) && (tok.browser !== browser));
  });
  user.tokens.push({ access, browser, token, date_login });

  user.lasttimeonline = new Date();

  return user.save()
    .then(() => {
      // console.log("TOKEN CREATO IN LOGIN : " + token);
      return token;
    })
    .catch(err => {
      console.log("Error", err.message);
    });
};

UserSchema.statics.setPermissionsById = function (id, perm) {
  const user = this;

  return user.findByIdAndUpdate(id, { $set: { perm } }).then((user) => {
    if (user)
      return res.send({ code: server_constants.RIS_CODE_OK, msg: '' });
    else
      return res.send({ code: server_constants.RIS_CODE_ERR, msg: '' });
  });

};

UserSchema.statics.isAdmin = function (perm) {
  try {
    return ((perm & shared_consts.Permissions.Admin) === shared_consts.Permissions.Admin);
  } catch (e) {
    return false
  }
};

UserSchema.statics.isManager = function (perm) {
  try {
    return ((perm & shared_consts.Permissions.Manager) === shared_consts.Permissions.Manager);
  } catch (e) {
    return false
  }
};

UserSchema.statics.findByToken = function (token, typeaccess) {
  const User = this;
  let decoded;

  try {
    decoded = jwt.verify(token, process.env.SIGNCODE);
  } catch (e) {
    return Promise.resolve(null);
  }

  return User.findOne({
    '_id': decoded._id,
    'tokens.token': token,
    'tokens.access': typeaccess,
  });
};

UserSchema.statics.findByTokenAnyAccess = function (token) {
  const User = this;
  let decoded;

  try {
    decoded = jwt.verify(token, process.env.SIGNCODE);
  } catch (e) {
    return Promise.resolve(null);
  }

  return User.findOne({
    '_id': decoded._id,
    'tokens.token': token,
  });
};

UserSchema.statics.findByCredentials = function (idapp, username, password) {
  const User = this;
  let pwd = "";

  return User.findOne({ idapp, username: username }).then((user) => {
    if (!user) {
      // Check if with email:
      return User.findOne({ idapp, email: username.toLowerCase() })
    } else {
      return user
    }
  }).then(user => {
    if (!user)
      return null;

    pwd = user.password;

    return new Promise((resolve, reject) => {
      // Use bcrypt.compare to compare password and user.password
      // console.log("pwd1 " + password);
      // console.log("pwd2 " + pwd);
      bcrypt.compare(password, pwd, (err, res) => {
        if (res) {
          resolve(user);
        } else {
          return resolve(null);
        }
      });
    });
  });
};


UserSchema.statics.findByUsername = function (idapp, username) {
  const User = this;

  return User.findOne({
    'idapp': idapp,
    'username': username,
  });
};

UserSchema.statics.getUserShortDataByUsername = function (idapp, username) {
  const User = this;

  return User.findOne({
    'idapp': idapp,
    'username': username,
  }, {
    ind_order: 1,
    username: 1,
    name: 1,
    surname: 1,
    verified_email: 1,
    'profile.teleg_id': 1,
    'profile.saw_zoom_presentation': 1,
    made_gift: 1,
    email: 1,
    date_reg: 1,
    img: 1
  }).then((ris) => {
    if (!!ris) {
      // console.log('ris', ris);
      if (!!ris._doc)
        return ris._doc;
      else
        return null;
    }
  });
};

UserSchema.statics.getDownlineByUsername = function (idapp, username) {
  const User = this;
  return User.find({
    'idapp': idapp,
    'aportador_solidario': username,
  }, {
    aportador_solidario: 1,
    ind_order: 1,
    username: 1,
    name: 1,
    surname: 1,
    verified_email: 1,
    'profile.teleg_id': 1,
    'profile.saw_zoom_presentation': 1,
    made_gift: 1,
    email: 1,
    date_reg: 1,
    img: 1
  }, (err, arrrec) => {
    return arrrec
  });
};


UserSchema.statics.getnumInvitatiAttivi = function (idapp, username) {
  const User = this;

  return User.count({
    idapp,
    aportador_solidario: username,
    'profile.teleg_id': { $gt: 1 },
    'profile.saw_zoom_presentation': true,
  });
};

UserSchema.statics.getUsersNationalityQuery = function (idapp) {
  const query = [
    {
      $match: { idapp }
    },
    {
      $group: { _id: "$profile.nationality", count: { $sum: 1 } }
    },
    {
      $sort: { count: -1 }
    }
  ];
  return query
};


UserSchema.statics.getindOrderDuplicate = function (idapp) {
  const User = this;

  return User.aggregate(User.getUsersNationalityQuery(idapp))
    .then(ris => {
      // console.table(ris);
      return JSON.stringify(ris);
    });
};

UserSchema.statics.getnumInvitati = function (idapp, username) {
  const User = this;

  return User.count({
    idapp,
    aportador_solidario: username,
  });
};

UserSchema.statics.findByLinkreg = function (idapp, linkreg) {
  const User = this;

  return User.findOne({
    'linkreg': linkreg,
    'idapp': idapp,
  });
};

UserSchema.statics.findByLinkTokenforgot = function (idapp, email, tokenforgot) {
  const User = this;

  return User.findOne({
    'email': email,
    'tokenforgot': tokenforgot,
    'date_tokenforgot': { $gte: tools.IncDateNow(-1000 * 60 * 60 * 4) },  // 4 ore fa!
    'idapp': idapp,
  });
};


UserSchema.statics.findByEmail = function (idapp, email) {
  const User = this;

  return User.findOne({
    'idapp': idapp,
    'email': email,
  });
};

UserSchema.statics.getLastUser = function (idapp) {
  const User = this;

  return User.findOne({ idapp }).sort({ ind_order: -1 })
};

UserSchema.pre('save', function (next) {
  const user = this;


  /*
  if (user.isModified('password')) {
    bcrypt.genSalt(10, (err, salt) => {
      bcrypt.hash(user.password, salt, (err, hash) => {
        user.password = hash;
        next();
      });
    });
  } else {
    next();
  }
  */
  next();
});

UserSchema.methods.removeToken = function (token) {
  const user = this;

  return user.updateOne({
    $pull: {
      tokens: { token }
    }
  });
};

UserSchema.statics.getEmailByUsername = async function (idapp, username) {
  const User = this;

  return await User.findOne({ idapp, username })
    .then((arrrec) => {
      return ((arrrec) ? arrrec.email : '');
    }).catch((e) => {
      console.error('getEmailByUsername', e);
    });
};

UserSchema.statics.getAportadorSolidarioByUsername = async function (idapp, username) {
  const User = this;

  return await User.findOne({ idapp, username })
    .then((rec) => {
      return ((rec) ? rec.aportador_solidario : '');
    }).catch((e) => {
      console.error('getAportadorSolidarioByUsername', e);
    });
};

UserSchema.statics.UserByIdTelegram = async function (idapp, teleg_id) {
  const User = this;

  return await User.findOne({ idapp, 'profile.teleg_id': teleg_id })
    .then((rec) => {
      return (!!rec) ? rec._doc : null;
    }).catch((e) => {
      console.error('UserExistByIdTelegram', e);
    });
};

UserSchema.statics.TelegIdByUsername = async function (idapp, username) {
  const User = this;

  return await User.findOne({ idapp, username }, { 'profile.teleg_id': 1 })
    .then((rec) => {
      return (!!rec) ? rec.profile.teleg_id : null;
    }).catch((e) => {
      console.error('TelegIdByUsername', e);
    });
};

UserSchema.statics.SetTelegramCheckCode = async function (idapp, username, teleg_checkcode) {
  const User = this;

  const fields_to_update = {
    'profile.teleg_checkcode': teleg_checkcode
  };

  return await User.findOneAndUpdate({
    idapp,
    username
  }, { $set: fields_to_update }, { new: false }).then((record) => {
    return !!record;
  });

};

UserSchema.statics.SetTelegramIdSuccess = async function (idapp, username, teleg_id) {
  const User = this;

  const fields_to_update = {
    'profile.teleg_id': teleg_id,
    'profile.teleg_checkcode': 0
  };

  return await User.findOneAndUpdate({
    idapp,
    username
  }, { $set: fields_to_update }, { new: false }).then((record) => {
    return record;
  });

};

UserSchema.statics.getNameSurnameByUsername = async function (idapp, username) {
  const User = this;

  return await User.findOne({ idapp, username }, { name: 1, surname: 1 })
    .then((rec) => {
      return (!!rec) ? `${rec.name} ${rec.surname}` : '';
    }).catch((e) => {
      console.error('getNameSurnameByUsername', e);
    });
};


UserSchema.statics.getusersManagers = async function (idapp) {
  const User = this;

  return await User.find({ idapp, 'profile.manage_telegram': true }, { 'profile.teleg_id': 1 })
    .then((arrrec) => {
      return (!!arrrec) ? arrrec : null;
    }).catch((e) => {
      console.error('getusersManagers', e);
    });
};

UserSchema.statics.getUsersTelegALL = async function (idapp) {
  const User = this;

  return await User.find({ idapp, 'profile.teleg_id': { $gt: 0 } }, { 'profile.teleg_id': 1 })
    .then((arrrec) => {
      return (!!arrrec) ? arrrec : null;
    }).catch((e) => {
      console.error('getusersManagers', e);
    });
};

UserSchema.statics.isManagerByIdTeleg = async function (idapp, idtelegram) {
  const User = this;

  return await User.findOne({
    idapp,
    'profile.manage_telegram': true,
    'profile.teleg_id': idtelegram
  }, { 'profile.teleg_id': 1 })
    .then((rec) => {
      return (!!rec && rec.profile.teleg_id === idtelegram);
    }).catch((e) => {
      console.error('getusersManagers', e);
      return false
    });
};

UserSchema.statics.isAdminByIdTeleg = async function (idapp, idtelegram) {
  const User = this;

  return await User.findOne({
    idapp,
    'username': 'paoloar77',
    'profile.manage_telegram': true,
    'profile.teleg_id': idtelegram
  }, { 'profile.teleg_id': 1 })
    .then((rec) => {
      return (!!rec && rec.profile.teleg_id === idtelegram);
    }).catch((e) => {
      console.error('getusersManagers', e);
      return false
    });
};

UserSchema.statics.getUsersList = function (idapp) {
  const User = this;

  return User.find({ 'idapp': idapp }, {
    username: 1,
    name: 1,
    surname: 1,
    verified_email: 1,
    made_gift: 1,
    perm: 1,
    email: 1,
    date_reg: 1,
    img: 1
  })

};


UserSchema.statics.getUsersListByParams = function (params) {
  const User = this;

  myclParamQuery = new queryclass.CParamsQuery(params);

  const filterMatchBefore = `${ myclParamQuery.filter }`;

  return User.find(
    { $match: filterMatchBefore },
    { 'idapp': idapp },
    {
      username: 1,
      name: 1,
      surname: 1,
      verified_email: 1,
      made_gift: 1,
      perm: 1,
      email: 1,
      date_reg: 1,
      img: 1,
      lasttimeonline: 1,
      news_on: 1
    })

};

/**
 * Query blog posts by user -> paginated results and a total count.
 * @returns {Object} Object -> `{ rows, count }`
 */

UserSchema.statics.getFieldsForSearch = function () {
  return ['username', 'name', 'surname', 'email', 'profile.cell', 'profile.email_paypal', 'profile.username_telegram', 'aportador_solidario']
};

UserSchema.statics.executeQueryTable = function (idapp, params) {
  params.fieldsearch = this.getFieldsForSearch();
  return tools.executeQueryTable(this, idapp, params);
};

UserSchema.statics.findAllIdApp = function (idapp) {
  const User = this;

  const myfind = { idapp };

  return User.find(myfind, (err, arrrec) => {
    return arrrec
  });
};

UserSchema.statics.DuplicateAllRecords = async function (idapporig, idappdest) {

  return tools.DuplicateAllRecords(this, idapporig, idappdest);

};

UserSchema.statics.getDashboard = async function (idapp, aportador_solidario, username, aportador_solidario_nome_completo) {
  try {

    // DATA: username, name, surname, email, intcode_cell, cell
    const dashboard = {
      aportador: {},
      downline: []
    };

    dashboard.myself = await User.getUserShortDataByUsername(idapp, username);
    // Data of my Aportador
    dashboard.aportador = await User.getUserShortDataByUsername(idapp, aportador_solidario);
    if (dashboard.aportador === undefined ) {
      dashboard.aportador = await ExtraList.getUserNotRegisteredByNameSurname(idapp, aportador_solidario_nome_completo);
    }


    // Data of my Downline
    const arrap = await User.getDownlineByUsername(idapp, aportador_solidario);
    dashboard.numpeople_aportador = arrap.length;

    dashboard.downline = await User.getDownlineByUsername(idapp, username);
    dashboard.downnotreg = await ExtraList.getDownlineNotRegisteredByNameSurname(idapp, dashboard.myself.name + ' ' + dashboard.myself.surname);

    dashboard.downbyuser = {};

    for (const down of dashboard.downline) {
      dashboard.downbyuser[down.username] = await User.getDownlineByUsername(idapp, down.username);

      for (const down2 of dashboard.downbyuser[down.username]) {
        dashboard.downbyuser[down2.username] = await User.getDownlineByUsername(idapp, down2.username);
      }
    }
    return dashboard;
  } catch (e) {
    console.error(e);
    return false;
  }
};

UserSchema.statics.fixUsername = async function (idapp, aportador_solidario_ind_order, username) {
  const User = this;

  // Check if somewhere there is my username
  return User.find({ idapp, aportador_solidario_ind_order }, async (err, arrrec) => {
    if (arrrec) {
      for (const myuser of arrrec) {
        if (!myuser.aportador_solidario || myuser.aportador_solidario === tools.APORTADOR_NONE) {
          myuser.aportador_solidario = username;
          await myuser.save()
        }
      }
    }
  });


};

UserSchema.statics.findByCellAndNameSurname = function (idapp, cell, name, surname) {
  const User = this;

  return User.findOne({
    'idapp': idapp,
    'profile.cell': cell,
    'name': name,
    'surname': surname,
  });
};


UserSchema.statics.getUsersRegistered = async function (idapp) {
  const User = this;

  const myfind = { idapp };

  return await User.count(myfind);
};

UserSchema.statics.getEmailNotVerified = async function (idapp) {
  const User = this;

  const myfind = { idapp, verified_email: false };

  return await User.count(myfind);
};

UserSchema.statics.getUsersTelegramAttivo = async function (idapp) {
  const User = this;

  const myfind = { idapp, 'profile.teleg_id': { $gt: 0 } };

  return await User.count(myfind);
};

UserSchema.statics.getUsersTelegramPending = async function (idapp) {
  const User = this;

  const myfind = { idapp, 'profile.teleg_checkcode': { $gt: 0 } };

  return await User.count(myfind);
};

UserSchema.statics.getUsersZoom = async function (idapp) {
  const User = this;

  const myfind = { idapp, 'profile.saw_zoom_presentation': true };

  return await User.count(myfind);
};

UserSchema.statics.getUsersDreams = async function (idapp) {
  const User = this;

  const myfind = {
    idapp,
    'profile.my_dream': { $exists: true },
    "$expr": { "$gt": [{ "$strLenCP": "$profile.my_dream" }, 10] }
  };

  return await User.count(myfind);
};

UserSchema.statics.getLastUsers = async function (idapp) {
  const User = this;

  const lastn = await Settings.getValDbSettings(idapp, 'SHOW_LAST_N_USERS', 5);

  return await User.find({ idapp }).sort({ date_temp_reg: -1 }).limit(lastn).then((arr) => {
    //return JSON.stringify(arr)
    return arr
  });

};

UserSchema.statics.checkUser = async function (idapp, username) {
  const User = this;

  return await User.findOne({ idapp, username }, {
    verified_email: 1,
    'profile.teleg_id': 1,
    'profile.teleg_checkcode': 1,
  }).then((rec) => {
    return JSON.stringify(rec)
  });

};

UserSchema.statics.calculateStat = async function (idapp, username) {
  const User = this;

  return calcstat = {
    numinvitati: await User.getnumInvitati(idapp, username),
    numinvitati_attivi: await User.getnumInvitatiAttivi(idapp, username),
  };

};

UserSchema.statics.getDistinctNationalityQuery = function (idapp) {
  const query = [
    {
      $match: { idapp }
    },
    {
      $group: { _id: "$profile.nationality", count: { $sum: 1 } }
    },
    {
      $sort: { count: -1 }
    }
  ];
  return query
};


UserSchema.statics.findAllDistinctNationality = async function (idapp) {
  const User = this;

  return User.aggregate(User.getDistinctNationalityQuery(idapp))
    .then(ris => {
      // console.table(ris);
      return JSON.stringify(ris);
    });
};

UserSchema.statics.getUsersRegDaily = function (idapp, nrec) {
  const query = [
    {
      $match: { idapp }
    },
    {
      $group: { _id: { $dateToString: { format: "%Y-%m-%d", date: "$date_temp_reg" } }, count: { $sum: 1 } }
    },
    {
      $sort: { _id: 1 }
    },
    {
      $limit: nrec
    }
  ];
  return query
};


UserSchema.statics.calcRegDaily = async function (idapp) {
  const User = this;

  return User.aggregate(User.getUsersRegDaily(idapp, 30))
    .then(ris => {
      // console.table(ris);
      return JSON.stringify(ris);
    });
};


if (tools.INITDB_FIRSTIME) {
  console.log('   createIndex User Index...');
  // UserSchema.index({ username: 'text', name: 'text', surname: 'text', email: 'text' });
  // UserSchema.index({ name: 'name' });
  // UserSchema.index({ name: 1 });
  // UserSchema.index({ surname: 1 });
}

UserSchema.statics.DbOp = async function (idapp, mydata) {
  const User = this;
  try {
    if (mydata.dbop === 'changeCellInt') {
      arrusers = await User.find({ 'idapp': idapp });
      let num = 0;
      for (const rec of arrusers) {
        let mycell = tools.removespaces(rec.profile.intcode_cell + rec.profile.cell);
        await User.findOneAndUpdate({ _id: rec._id }, { $set: { 'profile.cell': mycell } })
        num++;
      }

      return { num };

      // return await User.updateMany({ idapp }, { $set: { 'profile.cell': { $concat: ["$profile.intcode_cell", "$profile.cell"] } } })
    }
  } catch (e) {
    console.error(e);

  }

};

const User = mongoose.model('User', UserSchema);


class Hero {
  constructor(name, level) {
    this.name = name;
    this.level = level;
  }

  // Adding a method to the constructor
  greet() {
    return `${this.name} says hello.`;
  }
}


module.exports = { User, Hero };