package swarm

import (
	"errors"
	"fmt"
	"io"
	"testing"

	"github.com/docker/cli/internal/test"
	"github.com/docker/cli/internal/test/builders"
	"github.com/docker/docker/api/types/swarm"
	"gotest.tools/v3/assert"
	"gotest.tools/v3/golden"
)

func TestSwarmUnlockKeyErrors(t *testing.T) {
	testCases := []struct {
		name                  string
		args                  []string
		flags                 map[string]string
		swarmInspectFunc      func() (swarm.Swarm, error)
		swarmUpdateFunc       func(swarm swarm.Spec, flags swarm.UpdateFlags) error
		swarmGetUnlockKeyFunc func() (swarm.UnlockKeyResponse, error)
		expectedError         string
	}{
		{
			name:          "too-many-args",
			args:          []string{"foo"},
			expectedError: "accepts no arguments",
		},
		{
			name: "swarm-inspect-rotate-failed",
			flags: map[string]string{
				flagRotate: "true",
			},
			swarmInspectFunc: func() (swarm.Swarm, error) {
				return swarm.Swarm{}, errors.New("error inspecting the swarm")
			},
			expectedError: "error inspecting the swarm",
		},
		{
			name: "swarm-rotate-no-autolock-failed",
			flags: map[string]string{
				flagRotate: "true",
			},
			swarmInspectFunc: func() (swarm.Swarm, error) {
				return *builders.Swarm(), nil
			},
			expectedError: "cannot rotate because autolock is not turned on",
		},
		{
			name: "swarm-update-failed",
			flags: map[string]string{
				flagRotate: "true",
			},
			swarmInspectFunc: func() (swarm.Swarm, error) {
				return *builders.Swarm(builders.Autolock()), nil
			},
			swarmUpdateFunc: func(swarm swarm.Spec, flags swarm.UpdateFlags) error {
				return errors.New("error updating the swarm")
			},
			expectedError: "error updating the swarm",
		},
		{
			name: "swarm-get-unlock-key-failed",
			swarmGetUnlockKeyFunc: func() (swarm.UnlockKeyResponse, error) {
				return swarm.UnlockKeyResponse{}, errors.New("error getting unlock key")
			},
			expectedError: "error getting unlock key",
		},
		{
			name: "swarm-no-unlock-key-failed",
			swarmGetUnlockKeyFunc: func() (swarm.UnlockKeyResponse, error) {
				return swarm.UnlockKeyResponse{}, nil
			},
			expectedError: "no unlock key is set",
		},
	}
	for _, tc := range testCases {
		t.Run(tc.name, func(t *testing.T) {
			cmd := newUnlockKeyCommand(
				test.NewFakeCli(&fakeClient{
					swarmInspectFunc:      tc.swarmInspectFunc,
					swarmUpdateFunc:       tc.swarmUpdateFunc,
					swarmGetUnlockKeyFunc: tc.swarmGetUnlockKeyFunc,
				}))
			if tc.args == nil {
				cmd.SetArgs([]string{})
			} else {
				cmd.SetArgs(tc.args)
			}
			cmd.SetOut(io.Discard)
			cmd.SetErr(io.Discard)
			for k, v := range tc.flags {
				assert.Check(t, cmd.Flags().Set(k, v))
			}
			assert.ErrorContains(t, cmd.Execute(), tc.expectedError)
		})
	}
}

func TestSwarmUnlockKey(t *testing.T) {
	testCases := []struct {
		name                  string
		flags                 map[string]string
		swarmInspectFunc      func() (swarm.Swarm, error)
		swarmUpdateFunc       func(swarm swarm.Spec, flags swarm.UpdateFlags) error
		swarmGetUnlockKeyFunc func() (swarm.UnlockKeyResponse, error)
	}{
		{
			name: "unlock-key",
			swarmGetUnlockKeyFunc: func() (swarm.UnlockKeyResponse, error) {
				return swarm.UnlockKeyResponse{
					UnlockKey: "unlock-key",
				}, nil
			},
		},
		{
			name: "unlock-key-quiet",
			flags: map[string]string{
				flagQuiet: "true",
			},
			swarmGetUnlockKeyFunc: func() (swarm.UnlockKeyResponse, error) {
				return swarm.UnlockKeyResponse{
					UnlockKey: "unlock-key",
				}, nil
			},
		},
		{
			name: "unlock-key-rotate",
			flags: map[string]string{
				flagRotate: "true",
			},
			swarmInspectFunc: func() (swarm.Swarm, error) {
				return *builders.Swarm(builders.Autolock()), nil
			},
			swarmGetUnlockKeyFunc: func() (swarm.UnlockKeyResponse, error) {
				return swarm.UnlockKeyResponse{
					UnlockKey: "unlock-key",
				}, nil
			},
		},
		{
			name: "unlock-key-rotate-quiet",
			flags: map[string]string{
				flagQuiet:  "true",
				flagRotate: "true",
			},
			swarmInspectFunc: func() (swarm.Swarm, error) {
				return *builders.Swarm(builders.Autolock()), nil
			},
			swarmGetUnlockKeyFunc: func() (swarm.UnlockKeyResponse, error) {
				return swarm.UnlockKeyResponse{
					UnlockKey: "unlock-key",
				}, nil
			},
		},
	}
	for _, tc := range testCases {
		t.Run(tc.name, func(t *testing.T) {
			cli := test.NewFakeCli(&fakeClient{
				swarmInspectFunc:      tc.swarmInspectFunc,
				swarmUpdateFunc:       tc.swarmUpdateFunc,
				swarmGetUnlockKeyFunc: tc.swarmGetUnlockKeyFunc,
			})
			cmd := newUnlockKeyCommand(cli)
			cmd.SetArgs([]string{})
			cmd.SetOut(io.Discard)
			cmd.SetErr(io.Discard)
			for k, v := range tc.flags {
				assert.Check(t, cmd.Flags().Set(k, v))
			}
			assert.NilError(t, cmd.Execute())
			golden.Assert(t, cli.OutBuffer().String(), fmt.Sprintf("unlockkeys-%s.golden", tc.name))
		})
	}
}
