# frozen_string_literal: true

RSpec.describe Jobs::RunProblemChecks do
  around do |example|
    ProblemCheck::ScheduledCheck =
      Class.new(ProblemCheck) do
        self.perform_every = 30.minutes

        def call = []
      end

    ProblemCheck::NonScheduledCheck = Class.new(ProblemCheck) { def call = [] }

    ProblemCheck::DisabledCheck =
      Class.new(ProblemCheck) do
        self.perform_every = 30.minutes
        self.enabled = false

        def call = []
      end

    ProblemCheck::MultiTargetCheck =
      Class.new(ProblemCheck) do
        self.perform_every = 30.minutes
        self.targets = -> { %w[foo bar] }
      end

    stub_const(
      ProblemCheck,
      "CORE_PROBLEM_CHECKS",
      [
        ProblemCheck::ScheduledCheck,
        ProblemCheck::NonScheduledCheck,
        ProblemCheck::DisabledCheck,
        ProblemCheck::MultiTargetCheck,
      ],
      &example
    )

    ProblemCheck.send(:remove_const, "ScheduledCheck")
    ProblemCheck.send(:remove_const, "NonScheduledCheck")
    ProblemCheck.send(:remove_const, "DisabledCheck")
    ProblemCheck.send(:remove_const, "MultiTargetCheck")
  end

  it "runs the realtime checks in the background" do
    expect { described_class.new.execute([]) }.to change {
      ProblemCheckTracker.where(identifier: "non_scheduled_check").count
    }.by(1)
  end

  context "when a tracker hasn't been created yet" do
    it "still schedules checks" do
      expect_enqueued_with(
        job: :run_problem_check,
        args: {
          check_identifier: "scheduled_check",
          target: ProblemCheck::NO_TARGET,
        },
      ) { described_class.new.execute([]) }
    end
  end

  context "when the tracker determines the check is ready to run" do
    before do
      ProblemCheckTracker.create!(identifier: "scheduled_check", next_run_at: 5.minutes.ago)
    end

    it "schedules the individual scheduled checks" do
      expect_enqueued_with(
        job: :run_problem_check,
        args: {
          check_identifier: "scheduled_check",
          target: ProblemCheck::NO_TARGET,
        },
      ) { described_class.new.execute([]) }
    end
  end

  context "when the tracker determines the check shouldn't run yet" do
    before do
      ProblemCheckTracker.create!(identifier: "scheduled_check", next_run_at: 5.minutes.from_now)
    end

    it "does not schedule any check" do
      expect_not_enqueued_with(
        job: :run_problem_check,
        args: {
          check_identifier: "scheduled_check",
        },
      ) { described_class.new.execute([]) }
    end
  end

  context "when dealing with a non-scheduled check" do
    before { ProblemCheckTracker.create!(identifier: "non_scheduled_check", next_run_at: nil) }

    it "does not schedule any check" do
      expect_not_enqueued_with(
        job: :run_problem_check,
        args: {
          check_identifier: "non_scheduled_check",
        },
      ) { described_class.new.execute([]) }
    end
  end

  context "when dealing with a disabled check" do
    before { ProblemCheckTracker.create!(identifier: "disabled_check", next_run_at: nil) }

    it "does not schedule any check" do
      expect_not_enqueued_with(
        job: :run_problem_check,
        args: {
          check_identifier: "disabled_check",
        },
      ) { described_class.new.execute([]) }
    end
  end

  context "when dealing with an uninstalled check" do
    before { ProblemCheckTracker.create!(identifier: "uninstalled_check", next_run_at: nil) }

    it "does not schedule any check" do
      expect_not_enqueued_with(
        job: :run_problem_check,
        args: {
          check_identifier: "uninstalled_check",
        },
      ) { described_class.new.execute([]) }
    end
  end

  context "when dealing with a multi-target check" do
    it "schedules one check per target" do
      expect_enqueued_with(
        job: :run_problem_check,
        args: {
          check_identifier: "multi_target_check",
          target: "foo",
        },
      ) { described_class.new.execute([]) }

      expect_enqueued_with(
        job: :run_problem_check,
        args: {
          check_identifier: "multi_target_check",
          target: "bar",
        },
      ) { described_class.new.execute([]) }
    end

    it "creates a problem tracker for each target" do
      expect { described_class.new.execute([]) }.to change {
        ProblemCheckTracker.where(
          identifier: "multi_target_check",
          target: ProblemCheck::MultiTargetCheck.targets.call,
        ).count
      }.by(2)
    end

    it "does not create any no-target tracker" do
      expect { described_class.new.execute([]) }.not_to change {
        ProblemCheckTracker.where(
          identifier: "multi_target_check",
          target: ProblemCheck::NO_TARGET,
        ).count
      }
    end
  end
end