defmodule Odinsea.Database.Schema.Monsterbook do
  @moduledoc """
  Ecto schema for the monsterbook table.
  Represents monster book cards collected by characters.
  """

  use Ecto.Schema
  import Ecto.Changeset

  @primary_key {:id, :id, autogenerate: true}

  schema "monsterbook" do
    field :charid, :integer, default: 0
    field :cardid, :integer, default: 0
    field :level, :integer, default: 1

    belongs_to :character, Odinsea.Database.Schema.Character,
      foreign_key: :charid,
      references: :id,
      define_field: false
  end

  @doc """
  Changeset for creating/updating a monsterbook entry.
  """
  def changeset(monsterbook, attrs) do
    monsterbook
    |> cast(attrs, [:charid, :cardid, :level])
    |> validate_required([:charid, :cardid])
  end
end