package receivepack

import (
	"bytes"
	"context"
	"testing"

	"github.com/stretchr/testify/require"
	"gitlab.com/gitlab-org/labkit/correlation"

	"gitlab.com/gitlab-org/gitlab-shell/v14/client/testserver"
	"gitlab.com/gitlab-org/gitlab-shell/v14/internal/command/commandargs"
	"gitlab.com/gitlab-org/gitlab-shell/v14/internal/command/readwriter"
	"gitlab.com/gitlab-org/gitlab-shell/v14/internal/config"
	"gitlab.com/gitlab-org/gitlab-shell/v14/internal/sshenv"
	"gitlab.com/gitlab-org/gitlab-shell/v14/internal/testhelper/requesthandlers"
)

func TestReceivePack(t *testing.T) {
	gitalyAddress, testServer := testserver.StartGitalyServer(t)

	requests := requesthandlers.BuildAllowedWithGitalyHandlers(t, gitalyAddress)
	url := testserver.StartHttpServer(t, requests)

	testCases := []struct {
		username string
		keyId    string
	}{
		{
			username: "john.doe",
		},
		{
			keyId: "123",
		},
	}

	for _, tc := range testCases {
		output := &bytes.Buffer{}
		input := &bytes.Buffer{}
		repo := "group/repo"

		env := sshenv.Env{
			IsSSHConnection: true,
			OriginalCommand: "git-receive-pack " + repo,
			RemoteAddr:      "127.0.0.1",
		}

		args := &commandargs.Shell{
			CommandType: commandargs.ReceivePack,
			SshArgs:     []string{"git-receive-pack", repo},
			Env:         env,
		}

		if tc.username != "" {
			args.GitlabUsername = tc.username
		} else {
			args.GitlabKeyId = tc.keyId
		}

		cfg := &config.Config{GitlabUrl: url}
		cfg.GitalyClient.InitSidechannelRegistry(context.Background())
		cmd := &Command{
			Config:     cfg,
			Args:       args,
			ReadWriter: &readwriter.ReadWriter{ErrOut: output, Out: output, In: input},
		}

		ctx := correlation.ContextWithCorrelation(context.Background(), "a-correlation-id")
		ctx = correlation.ContextWithClientName(ctx, "gitlab-shell-tests")

		err := cmd.Execute(ctx)
		require.NoError(t, err)

		if tc.username != "" {
			require.Equal(t, "ReceivePack: 1 "+repo, output.String())
		} else {
			require.Equal(t, "ReceivePack: key-123 "+repo, output.String())
		}

		for k, v := range map[string]string{
			"gitaly-feature-cache_invalidator":        "true",
			"gitaly-feature-inforef_uploadpack_cache": "false",
			"x-gitlab-client-name":                    "gitlab-shell-tests-git-receive-pack",
			"key_id":                                  "123",
			"user_id":                                 "1",
			"remote_ip":                               "127.0.0.1",
			"key_type":                                "key",
		} {
			actual := testServer.ReceivedMD[k]
			require.Len(t, actual, 1)
			require.Equal(t, v, actual[0])
		}
		require.Empty(t, testServer.ReceivedMD["some-other-ff"])
		require.Equal(t, testServer.ReceivedMD["x-gitlab-correlation-id"][0], "a-correlation-id")
	}
}
