# frozen_string_literal: true

begin
  require 'mysql2'
  require 'active_record/connection_adapters/mysql2_adapter'
rescue LoadError
end
require_relative '../../../../lib/declare_schema/model/table_options_definition'

RSpec.describe DeclareSchema::Model::TableOptionsDefinition do
  before do
    load File.expand_path('../prepare_testapp.rb', __dir__)

    class TableOptionsDefinitionTestModel < ActiveRecord::Base
      fields do
        name :string, limit: 127, index: true
      end
    end
  end

  let(:model_class) { TableOptionsDefinitionTestModel }

  context 'instance methods' do
    let(:table_options) { { charset: "utf8", collation: "utf8_general"} }
    let(:model) { described_class.new('table_options_definition_test_models', table_options) }

    describe '#to_key' do
      subject { model.to_key }
      it { should eq(['table_options_definition_test_models', '{:charset=>"utf8", :collation=>"utf8_general"}']) }
    end

    describe '#settings' do
      subject { model.settings }
      it { should eq("CHARACTER SET utf8 COLLATE utf8_general") }
    end

    describe '#hash' do
      subject { model.hash }
      it { should eq(['table_options_definition_test_models', '{:charset=>"utf8", :collation=>"utf8_general"}'].hash) }
    end

    describe '#to_s' do
      subject { model.to_s }
      it { should eq("CHARACTER SET utf8 COLLATE utf8_general") }
    end

    describe '#alter_table_statement' do
      subject { model.alter_table_statement }
      it { should match(/execute "ALTER TABLE .*table_options_definition_test_models.* CHARACTER SET utf8 COLLATE utf8_general"/) }
    end
  end


  context 'class << self' do
    describe '#for_model' do
      context 'when database migrated' do
        let(:options) do
          if defined?(Mysql2)
            { charset: "utf8mb4", collation: "utf8mb4_bin" }
          else
            { }
          end
        end
        subject { described_class.for_model(model_class) }

        before do
          generate_migrations '-n', '-m'
        end

        it { should eq(described_class.new(model_class.table_name, options)) }
      end
    end
  end
end