class CreateUnidomShipments < ActiveRecord::Migration

  def change

    create_table :unidom_shipments, id: :uuid do |t|

      t.references :sender_party,    type: :uuid, null: false,
        polymorphic: { null: false, default: '', limit: 200 }
      t.references :sender_agent,    type: :uuid, null: false,
        polymorphic: { null: false, default: '', limit: 200 }
      t.references :sender_location, type: :uuid, null: false,
        polymorphic: { null: false, default: '', limit: 200 }
      t.references :sender_contact,  type: :uuid, null: false,
        polymorphic: { null: false, default: '', limit: 200 }

      t.references :receiver_party,    type: :uuid, null: false,
        polymorphic: { null: false, default: '', limit: 200 }
      t.references :receiver_agent,    type: :uuid, null: false,
        polymorphic: { null: false, default: '', limit: 200 }
      t.references :receiver_location, type: :uuid, null: false,
        polymorphic: { null: false, default: '', limit: 200 }
      t.references :receiver_contact,  type: :uuid, null: false,
        polymorphic: { null: false, default: '', limit: 200 }

      t.column :conveyance_code, 'char(4)', null: false, default: 'ZZZZ'

      t.date :estimated_ready_on,   null: false, default: nil
      t.date :estimated_shipped_on, null: false, default: nil
      t.date :estimated_arrived_on, null: false, default: nil

      t.datetime :last_cancellable_at, null: false, default: nil

      t.datetime :shipped_at,   null: true
      t.datetime :received_at,  null: true
      t.datetime :cancelled_at, null: true

      t.decimal :estimated_amount, null: false, default: 0.0, precision: 12, scale: 2
      t.decimal :actual_amount,    null: false, default: 0.0, precision: 12, scale: 2

      t.text :instruction
      t.text :description

      t.column   :state, 'char(1)', null: false, default: 'C'
      t.datetime :opened_at,        null: false, default: ::Time.utc(1970)
      t.datetime :closed_at,        null: false, default: ::Time.utc(3000)
      t.boolean  :defunct,          null: false, default: false
      t.jsonb    :notation,         null: false, default: {}

      t.timestamps null: false

    end

    add_index :unidom_shipments, :sender_party_id
    add_index :unidom_shipments, :sender_agent_id
    add_index :unidom_shipments, :sender_location_id
    add_index :unidom_shipments, :sender_contact_id
    add_index :unidom_shipments, :receiver_party_id
    add_index :unidom_shipments, :receiver_agent_id
    add_index :unidom_shipments, :receiver_location_id
    add_index :unidom_shipments, :receiver_contact_id

  end

end