package v7_test

import (
	"errors"

	"code.cloudfoundry.org/cli/actor/actionerror"
	"code.cloudfoundry.org/cli/actor/v7action"
	"code.cloudfoundry.org/cli/command/commandfakes"
	. "code.cloudfoundry.org/cli/command/v7"
	"code.cloudfoundry.org/cli/command/v7/v7fakes"
	"code.cloudfoundry.org/cli/util/configv3"
	"code.cloudfoundry.org/cli/util/ui"

	. "github.com/onsi/ginkgo/v2"
	. "github.com/onsi/gomega"
	. "github.com/onsi/gomega/gbytes"
)

var _ = Describe("delete-orphaned-routes Command", func() {
	var (
		cmd             DeleteOrphanedRoutesCommand
		testUI          *ui.UI
		fakeConfig      *commandfakes.FakeConfig
		fakeSharedActor *commandfakes.FakeSharedActor
		fakeActor       *v7fakes.FakeActor
		input           *Buffer
		binaryName      string
		executeErr      error
	)

	BeforeEach(func() {
		input = NewBuffer()
		testUI = ui.NewTestUI(input, NewBuffer(), NewBuffer())
		fakeConfig = new(commandfakes.FakeConfig)
		fakeSharedActor = new(commandfakes.FakeSharedActor)
		fakeActor = new(v7fakes.FakeActor)

		binaryName = "faceman"
		fakeConfig.BinaryNameReturns(binaryName)

		cmd = DeleteOrphanedRoutesCommand{
			BaseCommand: BaseCommand{
				UI:          testUI,
				Config:      fakeConfig,
				SharedActor: fakeSharedActor,
				Actor:       fakeActor,
			},
		}

		fakeConfig.TargetedOrganizationReturns(configv3.Organization{
			Name: "some-org",
			GUID: "some-org-guid",
		})

		fakeConfig.TargetedSpaceReturns(configv3.Space{
			Name: "some-space",
			GUID: "some-space-guid",
		})

		fakeActor.GetCurrentUserReturns(configv3.User{Name: "steve"}, nil)
	})

	JustBeforeEach(func() {
		executeErr = cmd.Execute(nil)
	})

	When("checking target org", func() {
		BeforeEach(func() {
			fakeSharedActor.CheckTargetReturns(actionerror.NoOrganizationTargetedError{BinaryName: binaryName})
		})

		It("returns an error", func() {
			Expect(executeErr).To(MatchError(actionerror.NoOrganizationTargetedError{BinaryName: binaryName}))

			Expect(fakeSharedActor.CheckTargetCallCount()).To(Equal(1))
			checkTargetedOrg, checkTargetedSpace := fakeSharedActor.CheckTargetArgsForCall(0)
			Expect(checkTargetedOrg).To(BeTrue())
			Expect(checkTargetedSpace).To(BeTrue())
		})
	})

	When("checking target space", func() {
		BeforeEach(func() {
			fakeSharedActor.CheckTargetReturns(actionerror.NoSpaceTargetedError{BinaryName: binaryName})
		})

		It("returns an error", func() {
			Expect(executeErr).To(MatchError(actionerror.NoSpaceTargetedError{BinaryName: binaryName}))

			Expect(fakeSharedActor.CheckTargetCallCount()).To(Equal(1))
			checkTargetedOrg, checkTargetedSpace := fakeSharedActor.CheckTargetArgsForCall(0)
			Expect(checkTargetedOrg).To(BeTrue())
			Expect(checkTargetedSpace).To(BeTrue())
		})
	})

	When("the user is not logged in", func() {
		var expectedErr error

		BeforeEach(func() {
			expectedErr = errors.New("some current user error")
			fakeActor.GetCurrentUserReturns(configv3.User{}, expectedErr)
		})

		It("return an error", func() {
			Expect(executeErr).To(Equal(expectedErr))
		})
	})

	When("the -f flag is NOT provided", func() {
		BeforeEach(func() {
			cmd.Force = false
		})

		When("the user inputs yes", func() {
			BeforeEach(func() {
				_, err := input.Write([]byte("y\n"))
				Expect(err).ToNot(HaveOccurred())
				fakeActor.DeleteOrphanedRoutesReturns(v7action.Warnings{"some-warning"}, nil)
			})

			It("delegates to the Actor", func() {
				Expect(fakeActor.DeleteOrphanedRoutesCallCount()).To(Equal(1))
				Expect(fakeActor.DeleteOrphanedRoutesArgsForCall(0)).To(Equal("some-space-guid"))
			})

			It("does not error and outputs the warnings", func() {
				Expect(executeErr).ToNot(HaveOccurred())
				Expect(testUI.Err).To(Say("some-warning"))
			})
		})

		When("the user inputs no", func() {
			BeforeEach(func() {
				_, err := input.Write([]byte("n\n"))
				Expect(err).ToNot(HaveOccurred())
			})

			It("cancels the delete", func() {
				Expect(executeErr).ToNot(HaveOccurred())
				Expect(fakeActor.DeleteOrphanedRoutesCallCount()).To(Equal(0))
			})
		})

		When("the user chooses the default", func() {
			BeforeEach(func() {
				_, err := input.Write([]byte("\n"))
				Expect(err).ToNot(HaveOccurred())
			})

			It("cancels the delete", func() {
				Expect(executeErr).ToNot(HaveOccurred())
				Expect(fakeActor.DeleteOrphanedRoutesCallCount()).To(Equal(0))
			})
		})

		When("the user input is invalid", func() {
			BeforeEach(func() {
				_, err := input.Write([]byte("e\n\n"))
				Expect(err).ToNot(HaveOccurred())
			})

			It("asks the user again", func() {
				Expect(executeErr).ToNot(HaveOccurred())
				Expect(fakeActor.DeleteOrphanedRoutesCallCount()).To(Equal(0))
			})
		})
	})

	When("the -f flag is provided", func() {
		BeforeEach(func() {
			cmd.Force = true
		})

		When("deleting the orphaned routes does NOT error", func() {
			BeforeEach(func() {
				fakeActor.DeleteOrphanedRoutesReturns(v7action.Warnings{"some-warning"}, nil)
			})

			It("displays all warnings, and does not error", func() {
				Expect(executeErr).ToNot(HaveOccurred())
				Expect(testUI.Err).To(Say("some-warning"))
			})
		})

		When("deleting the orphaned routes errors", func() {
			Context("generic error", func() {
				BeforeEach(func() {
					fakeActor.DeleteOrphanedRoutesReturns(v7action.Warnings{"some-warning"}, errors.New("some-error"))
				})

				It("displays all warnings, and returns the error", func() {
					Expect(testUI.Err).To(Say("some-warning"))
					Expect(executeErr).To(MatchError("some-error"))
				})
			})
		})
	})
})
