require 'rails_helper'

RSpec.describe "Api::V1::Parks", type: :request do
  describe "GET /parks" do
    it "returns parks" do
      get api_v1_parks_url
      expect(response).to have_http_status(:success)
      expect(response.parsed_body["parks"]).to include(
        hash_including(
          code: "crla", name: "Crater Lake National Park", states: "OR"
        )
      )
      expect(response.parsed_body["parks"]).to include(
        hash_including(
          code: "olym", name: "Olympic National Park", states: "WA"
        )
      )
    end

    it "filters by state" do
      get api_v1_parks_url, params: { state: "OR" }
      expect(response.parsed_body["parks"].pluck("code")).to eq(["crla"])
    end

    context "with pagination" do
      it "respects limit param" do
        get api_v1_parks_url, params: { limit: 1 }
        expect(response.parsed_body["total"]).to eq(2)
        expect(response.parsed_body["limit"]).to eq(1)
        expect(response.parsed_body["offset"]).to eq(0)
        expect(response.parsed_body["parks"].size).to eq(1)
      end

      it "respects offset param" do
        get api_v1_parks_url, params: { offset: 1 }
        expect(response.parsed_body["parks"].first["code"]).to eq("crla")
      end
    end
  end

  describe "GET /parks/:code" do
    it "returns :not_found for unknown codes" do
      get api_v1_park_url("foo")
      expect(response).to have_http_status(:not_found)
    end

    it "returns the park" do
      get api_v1_park_url(parks(:one).code)
      expect(response).to have_http_status(:success)
      expect(response.parsed_body).to match(
        hash_including(
          code: "crla", name: "Crater Lake National Park", states: "OR"
        )
      )
    end
  end
end