const db = require("..");
const Member = db.Member;
const Op = db.Sequelize.Op;

// Create and Save a new Member
exports.create = (req, res) => {
  // Validate
  if (!req.body) {
    res.status(400).send({
      message: "Body content can not be empty!"
    });
    return;
  }

  // Create
  const members = []

  if (Array.isArray(req.body)) {
    members.push(...req.body)
  } else {
    members.push(req.body)
  }

  // Save
  const promises = members.map(member => {
    return Member.create(member)
      .then(memberObj => {
        if (req.body.rankId) {
          db.Rank.findByPk(req.body.rankId)
            .then(rank => {
              memberObj.setRank(rank)
            })
        }
        if (req.body.statusId) {
          db.MemberStatus.findByPk(req.body.statusId)
            .then(status => {
              memberObj.setStatus(status)
            })
        }
        return memberObj
      })
  });

  // Create
  const successes = []
  const failures = []
  Promise.allSettled(promises)
    .then(data => {
      if (data.every(result => result.status === 'fulfilled')) {
        res.status(201).send({
          message: "All members were created successfully.",
          successes: data.map(result => result.value),
          failures: [],
        })
        return;
      }

      data.forEach(result => {
        if (result.status === 'fulfilled') {
          successes.push(result.value)
        } else {
          failures.push(result.reason.errors)
        }
      })
      if (successes.length === 0) {
        res.status(500).send({
          message:
            "Failed to create any Members.",
          failures: failures,
          successes: successes,
        });
        return;
      }
      res.status(207).send({
        message: "Some Members were created successfully.",
        successes: successes,
        failures: failures,
      })
    })
    .catch(err => {
      res.status(500).send({
        message:
          err.message || "Some error occurred while creating the Member.",
      });
    });
};

// Retrieve all Members from the database.
exports.findAll = (req, res) => {
  Member.findAll()
    .then(data => {
      res.send(data);
    })
    .catch(err => {
      res.status(500).send({
        message:
          err.message || "Some error occurred while retrieving members."
      });
    });
};