RSpec.describe Flipper::Api::V1::Actions::ExpressionGate do
  let(:app) { build_api(flipper) }
  let(:actor) {
    Flipper::Actor.new('1', {
      "plan" => "basic",
      "age" => 21,
    })
  }
  let(:expression) { Flipper.property(:plan).eq("basic") }

  describe 'enable' do
    before do
      flipper[:my_feature].disable_expression
      post '/features/my_feature/expression', JSON.dump(expression.value),
        "CONTENT_TYPE" => "application/json"
    end

    it 'enables feature for expression' do
      expect(last_response.status).to eq(200)
      expect(flipper[:my_feature].enabled?(actor)).to be_truthy
      expect(flipper[:my_feature].enabled_gate_names).to eq([:expression])
    end

    it 'returns decorated feature with expression enabled' do
      gate = json_response['gates'].find { |gate| gate['key'] == 'expression' }
      expect(gate['value']).to eq(expression.value)
    end
  end

  describe 'disable' do
    before do
      flipper[:my_feature].enable_expression(expression)
      delete '/features/my_feature/expression', JSON.dump({}),
        "CONTENT_TYPE" => "application/json"
    end

    it 'disables expression for feature' do
      expect(last_response.status).to eq(200)
      expect(flipper[:my_feature].enabled?(actor)).to be_falsy
      expect(flipper[:my_feature].enabled_gate_names).to be_empty
    end

    it 'returns decorated feature with expression gate disabled' do
      gate = json_response['gates'].find { |gate| gate['key'] == 'expression' }
      expect(gate['value']).to be(nil)
    end
  end

  describe 'enable feature with slash in name' do
    before do
      flipper["my/feature"].disable_expression
      post '/features/my/feature/expression', JSON.dump(expression.value),
        "CONTENT_TYPE" => "application/json"
    end

    it 'enables feature for expression' do
      expect(last_response.status).to eq(200)
      expect(flipper["my/feature"].enabled?(actor)).to be_truthy
      expect(flipper["my/feature"].enabled_gate_names).to eq([:expression])
    end

    it 'returns decorated feature with expression enabled' do
      gate = json_response['gates'].find { |gate| gate['key'] == 'expression' }
      expect(gate['value']).to eq(expression.value)
    end
  end

  describe 'enable feature with space in name' do
    before do
      flipper["sp ace"].disable_expression
      post '/features/sp%20ace/expression', JSON.dump(expression.value),
        "CONTENT_TYPE" => "application/json"
    end

    it 'enables feature for expression' do
      expect(last_response.status).to eq(200)
      expect(flipper["sp ace"].enabled?(actor)).to be_truthy
      expect(flipper["sp ace"].enabled_gate_names).to eq([:expression])
    end

    it 'returns decorated feature with expression enabled' do
      gate = json_response['gates'].find { |gate| gate['key'] == 'expression' }
      expect(gate['value']).to eq(expression.value)
    end
  end

  describe 'enable with no data' do
    before do
      post '/features/my_feature/expression', "CONTENT_TYPE" => "application/json"
    end

    it 'returns correct error response' do
      expect(last_response.status).to eq(422)
      expect(json_response).to eq(api_expression_invalid_response)
    end
  end

  describe 'enable with empty object' do
    before do
      data = {}
      post '/features/my_feature/expression', JSON.dump(data),
        "CONTENT_TYPE" => "application/json"
    end

    it 'returns correct error response' do
      expect(last_response.status).to eq(422)
      expect(json_response).to eq(api_expression_invalid_response)
    end
  end

  describe 'enable with invalid data' do
    before do
      data = {"blah" => "blah"}
      post '/features/my_feature/expression', JSON.dump(data),
        "CONTENT_TYPE" => "application/json"
    end

    it 'returns correct error response' do
      expect(last_response.status).to eq(422)
      expect(json_response).to eq(api_expression_invalid_response)
    end
  end

  describe 'enable missing feature' do
    before do
      post '/features/my_feature/expression', JSON.dump(expression.value), "CONTENT_TYPE" => "application/json"
    end

    it 'enables expression for feature' do
      expect(last_response.status).to eq(200)
      expect(flipper[:my_feature].enabled?(actor)).to be_truthy
      expect(flipper[:my_feature].enabled_gate_names).to eq([:expression])
    end

    it 'returns decorated feature with expression enabled' do
      gate = json_response['gates'].find { |gate| gate['key'] == 'expression' }
      expect(gate['value']).to eq(expression.value)
    end
  end

  describe 'disable missing feature' do
    before do
      delete '/features/my_feature/expression', "CONTENT_TYPE" => "application/json"
    end

    it 'disables expression for feature' do
      expect(last_response.status).to eq(200)
      expect(flipper[:my_feature].enabled?(actor)).to be_falsy
      expect(flipper[:my_feature].enabled_gate_names).to be_empty
    end

    it 'returns decorated feature with expression gate disabled' do
      gate = json_response['gates'].find { |gate| gate['key'] == 'expression' }
      expect(gate['value']).to be(nil)
    end
  end
end