require 'rails_helper'
RSpec.describe Report::Subcategory, type: :model do
  let(:school) { create(:school, name: 'Milford High', slug: 'milford-high') }
  let(:academic_year) { create(:academic_year, range: '2018-2019') }
  let(:subcategory) { create(:subcategory, subcategory_id: '1A') }
  let(:respondent) { create(:respondent, school:, academic_year:) }
  before :each do
    school
    academic_year
    subcategory
    respondent
  end
  let(:measure) { create(:measure, subcategory:) }
  let(:scale) { create(:scale, measure:) }
  let(:survey_item) { create(:student_survey_item, scale:) }

  context 'when creating a report for a subcategory' do
    before :each do
      create_list(:survey_item_response, 10, survey_item:, school:, academic_year:)
    end

    it 'creates a report for subcategories' do
      expect(Report::Subcategory.create_report).to be_a(Array)
      headers = Report::Subcategory.create_report.first
      expect(headers).to eq(['School', 'Academic Year', 'Subcategory', 'Student Score',
                             'Student Zone', 'Teacher Score', 'Teacher Zone', 'Admin Score', 'Admin Zone', 'All Score (Average)', 'All Score Zone'])
    end

    it 'Adds information about the first school and first academic year to the report' do
      report = Report::Subcategory.create_report
      report[1] in [school_name, academic_year, subcategory_id, *]
      expect(school_name).to eq('Milford High')
      expect(academic_year).to eq('2018-2019')
      expect(subcategory_id).to eq('1A')
    end
  end
  describe '.create_report' do
    before do
      allow(Report::Subcategory).to receive(:write_csv)
    end

    it 'generates a CSV report' do
      expect(FileUtils).to receive(:mkdir_p).with(Rails.root.join('tmp', 'reports'))

      Report::Subcategory.create_report

      expect(Report::Subcategory).to have_received(:write_csv)
    end

    it 'returns the report data' do
      data = Report::Subcategory.create_report

      expect(data).to be_an(Array)
    end
  end
  describe '.write_csv' do
    it 'writes the data to a CSV file' do
      data = [['School', 'Academic Year', 'Subcategory'], ['School A', '2022-2023', 'Category A']]
      filepath = Rails.root.join('tmp', 'spec', 'reports', 'subcategories.csv')

      FileUtils.mkdir_p Rails.root.join('tmp', 'spec', 'reports')
      Report::Subcategory.write_csv(data:, filepath:)

      csv_data = File.read(filepath)
      expect(csv_data).to include('School,Academic Year,Subcategory')
      expect(csv_data).to include('School A,2022-2023,Category A')
    end
  end

  describe '.student_score' do
    let(:response_rate) { create(:response_rate, subcategory:, school:, academic_year:) }
    let(:row) { [response_rate, subcategory, school, academic_year] }

    it 'returns student score if response rate meets student threshold' do
      allow(subcategory).to receive(:student_score).and_return(80)
      allow(response_rate).to receive(:meets_student_threshold?).and_return(true)

      score = Report::Subcategory.student_score(row:)

      expect(score).to eq(80)
    end

    it 'returns "N/A" if response rate does not meet student threshold' do
      allow(response_rate).to receive(:meets_student_threshold?).and_return(false)

      score = Report::Subcategory.student_score(row:)

      expect(score).to eq('N/A')
    end
  end
end