var db = require('./db')

exports.up = function (next) {
  var sql = [
    `CREATE TABLE individual_discounts (
      id UUID PRIMARY KEY,
      customer_id UUID NOT NULL REFERENCES customers(id),
      discount SMALLINT NOT NULL,
      soft_deleted BOOLEAN DEFAULT false
    )`,
    `CREATE UNIQUE INDEX uq_individual_discount ON individual_discounts (customer_id) WHERE NOT soft_deleted`
  ]

  db.multi(sql, next)
}

exports.down = function (next) {
  next()
}