package telemetry_test

import (
	"database/sql"
	"encoding/json"
	"net/http"
	"net/http/httptest"
	"net/url"
	"sort"
	"testing"
	"time"

	"github.com/go-chi/chi/v5"
	"github.com/google/uuid"
	"github.com/stretchr/testify/assert"
	"github.com/stretchr/testify/require"
	"go.uber.org/goleak"

	"github.com/coder/coder/v2/buildinfo"
	"github.com/coder/coder/v2/coderd/database"
	"github.com/coder/coder/v2/coderd/database/dbgen"
	"github.com/coder/coder/v2/coderd/database/dbmem"
	"github.com/coder/coder/v2/coderd/database/dbtestutil"
	"github.com/coder/coder/v2/coderd/database/dbtime"
	"github.com/coder/coder/v2/coderd/idpsync"
	"github.com/coder/coder/v2/coderd/runtimeconfig"
	"github.com/coder/coder/v2/coderd/telemetry"
	"github.com/coder/coder/v2/codersdk"
	"github.com/coder/coder/v2/testutil"
)

func TestMain(m *testing.M) {
	goleak.VerifyTestMain(m, testutil.GoleakOptions...)
}

func TestTelemetry(t *testing.T) {
	t.Parallel()
	t.Run("Snapshot", func(t *testing.T) {
		t.Parallel()

		var err error

		db := dbmem.New()

		ctx := testutil.Context(t, testutil.WaitMedium)

		org, err := db.GetDefaultOrganization(ctx)
		require.NoError(t, err)

		_, _ = dbgen.APIKey(t, db, database.APIKey{})
		_ = dbgen.ProvisionerJob(t, db, nil, database.ProvisionerJob{
			Provisioner:    database.ProvisionerTypeTerraform,
			StorageMethod:  database.ProvisionerStorageMethodFile,
			Type:           database.ProvisionerJobTypeTemplateVersionDryRun,
			OrganizationID: org.ID,
		})
		_ = dbgen.Template(t, db, database.Template{
			Provisioner:    database.ProvisionerTypeTerraform,
			OrganizationID: org.ID,
		})
		sourceExampleID := uuid.NewString()
		_ = dbgen.TemplateVersion(t, db, database.TemplateVersion{
			SourceExampleID: sql.NullString{String: sourceExampleID, Valid: true},
			OrganizationID:  org.ID,
		})
		_ = dbgen.TemplateVersion(t, db, database.TemplateVersion{
			OrganizationID: org.ID,
		})
		user := dbgen.User(t, db, database.User{})
		_ = dbgen.Workspace(t, db, database.WorkspaceTable{
			OrganizationID: org.ID,
		})
		_ = dbgen.WorkspaceApp(t, db, database.WorkspaceApp{
			SharingLevel: database.AppSharingLevelOwner,
			Health:       database.WorkspaceAppHealthDisabled,
			OpenIn:       database.WorkspaceAppOpenInSlimWindow,
		})
		group := dbgen.Group(t, db, database.Group{})
		_ = dbgen.GroupMember(t, db, database.GroupMemberTable{UserID: user.ID, GroupID: group.ID})
		wsagent := dbgen.WorkspaceAgent(t, db, database.WorkspaceAgent{})
		// Update the workspace agent to have a valid subsystem.
		err = db.UpdateWorkspaceAgentStartupByID(ctx, database.UpdateWorkspaceAgentStartupByIDParams{
			ID:                wsagent.ID,
			Version:           wsagent.Version,
			ExpandedDirectory: wsagent.ExpandedDirectory,
			Subsystems: []database.WorkspaceAgentSubsystem{
				database.WorkspaceAgentSubsystemEnvbox,
				database.WorkspaceAgentSubsystemExectrace,
			},
		})
		require.NoError(t, err)

		_ = dbgen.WorkspaceBuild(t, db, database.WorkspaceBuild{
			Transition: database.WorkspaceTransitionStart,
			Reason:     database.BuildReasonAutostart,
		})
		_ = dbgen.WorkspaceResource(t, db, database.WorkspaceResource{
			Transition: database.WorkspaceTransitionStart,
		})
		_ = dbgen.WorkspaceAgentStat(t, db, database.WorkspaceAgentStat{})
		_, err = db.InsertLicense(ctx, database.InsertLicenseParams{
			UploadedAt: dbtime.Now(),
			JWT:        "",
			Exp:        dbtime.Now().Add(time.Hour),
			UUID:       uuid.New(),
		})
		assert.NoError(t, err)
		_, _ = dbgen.WorkspaceProxy(t, db, database.WorkspaceProxy{})

		_ = dbgen.WorkspaceModule(t, db, database.WorkspaceModule{})

		_, snapshot := collectSnapshot(t, db, nil)
		require.Len(t, snapshot.ProvisionerJobs, 1)
		require.Len(t, snapshot.Licenses, 1)
		require.Len(t, snapshot.Templates, 1)
		require.Len(t, snapshot.TemplateVersions, 2)
		require.Len(t, snapshot.Users, 1)
		require.Len(t, snapshot.Groups, 2)
		// 1 member in the everyone group + 1 member in the custom group
		require.Len(t, snapshot.GroupMembers, 2)
		require.Len(t, snapshot.Workspaces, 1)
		require.Len(t, snapshot.WorkspaceApps, 1)
		require.Len(t, snapshot.WorkspaceAgents, 1)
		require.Len(t, snapshot.WorkspaceBuilds, 1)
		require.Len(t, snapshot.WorkspaceResources, 1)
		require.Len(t, snapshot.WorkspaceAgentStats, 1)
		require.Len(t, snapshot.WorkspaceProxies, 1)
		require.Len(t, snapshot.WorkspaceModules, 1)
		require.Len(t, snapshot.Organizations, 1)

		wsa := snapshot.WorkspaceAgents[0]
		require.Len(t, wsa.Subsystems, 2)
		require.Equal(t, string(database.WorkspaceAgentSubsystemEnvbox), wsa.Subsystems[0])
		require.Equal(t, string(database.WorkspaceAgentSubsystemExectrace), wsa.Subsystems[1])

		tvs := snapshot.TemplateVersions
		sort.Slice(tvs, func(i, j int) bool {
			// Sort by SourceExampleID presence (non-nil comes before nil)
			if (tvs[i].SourceExampleID != nil) != (tvs[j].SourceExampleID != nil) {
				return tvs[i].SourceExampleID != nil
			}
			return false
		})
		require.Equal(t, tvs[0].SourceExampleID, &sourceExampleID)
		require.Nil(t, tvs[1].SourceExampleID)

		for _, entity := range snapshot.Workspaces {
			require.Equal(t, entity.OrganizationID, org.ID)
		}
		for _, entity := range snapshot.ProvisionerJobs {
			require.Equal(t, entity.OrganizationID, org.ID)
		}
		for _, entity := range snapshot.TemplateVersions {
			require.Equal(t, entity.OrganizationID, org.ID)
		}
		for _, entity := range snapshot.Templates {
			require.Equal(t, entity.OrganizationID, org.ID)
		}
	})
	t.Run("HashedEmail", func(t *testing.T) {
		t.Parallel()
		db := dbmem.New()
		_ = dbgen.User(t, db, database.User{
			Email: "kyle@coder.com",
		})
		_, snapshot := collectSnapshot(t, db, nil)
		require.Len(t, snapshot.Users, 1)
		require.Equal(t, snapshot.Users[0].EmailHashed, "bb44bf07cf9a2db0554bba63a03d822c927deae77df101874496df5a6a3e896d@coder.com")
	})
	t.Run("HashedModule", func(t *testing.T) {
		t.Parallel()
		db, _ := dbtestutil.NewDB(t)
		pj := dbgen.ProvisionerJob(t, db, nil, database.ProvisionerJob{})
		_ = dbgen.WorkspaceModule(t, db, database.WorkspaceModule{
			JobID:   pj.ID,
			Source:  "registry.coder.com/terraform/aws",
			Version: "1.0.0",
		})
		_ = dbgen.WorkspaceModule(t, db, database.WorkspaceModule{
			JobID:   pj.ID,
			Source:  "https://internal-url.com/some-module",
			Version: "1.0.0",
		})
		_, snapshot := collectSnapshot(t, db, nil)
		require.Len(t, snapshot.WorkspaceModules, 2)
		modules := snapshot.WorkspaceModules
		sort.Slice(modules, func(i, j int) bool {
			return modules[i].Source < modules[j].Source
		})
		require.Equal(t, modules[0].Source, "ed662ec0396db67e77119f14afcb9253574cc925b04a51d4374bcb1eae299f5d")
		require.Equal(t, modules[0].Version, "92521fc3cbd964bdc9f584a991b89fddaa5754ed1cc96d6d42445338669c1305")
		require.Equal(t, modules[0].SourceType, telemetry.ModuleSourceTypeHTTP)
		require.Equal(t, modules[1].Source, "registry.coder.com/terraform/aws")
		require.Equal(t, modules[1].Version, "1.0.0")
		require.Equal(t, modules[1].SourceType, telemetry.ModuleSourceTypeCoderRegistry)
	})
	t.Run("ModuleSourceType", func(t *testing.T) {
		t.Parallel()
		cases := []struct {
			source string
			want   telemetry.ModuleSourceType
		}{
			// Local relative paths
			{source: "./modules/terraform-aws-vpc", want: telemetry.ModuleSourceTypeLocal},
			{source: "../shared/modules/vpc", want: telemetry.ModuleSourceTypeLocal},
			{source: "  ./my-module  ", want: telemetry.ModuleSourceTypeLocal}, // with whitespace

			// Local absolute paths
			{source: "/opt/terraform/modules/vpc", want: telemetry.ModuleSourceTypeLocalAbs},
			{source: "/Users/dev/modules/app", want: telemetry.ModuleSourceTypeLocalAbs},
			{source: "/etc/terraform/modules/network", want: telemetry.ModuleSourceTypeLocalAbs},

			// Public registry
			{source: "hashicorp/consul/aws", want: telemetry.ModuleSourceTypePublicRegistry},
			{source: "registry.terraform.io/hashicorp/aws", want: telemetry.ModuleSourceTypePublicRegistry},
			{source: "terraform-aws-modules/vpc/aws", want: telemetry.ModuleSourceTypePublicRegistry},
			{source: "hashicorp/consul/aws//modules/consul-cluster", want: telemetry.ModuleSourceTypePublicRegistry},
			{source: "hashicorp/co-nsul/aw_s//modules/consul-cluster", want: telemetry.ModuleSourceTypePublicRegistry},

			// Private registry
			{source: "app.terraform.io/company/vpc/aws", want: telemetry.ModuleSourceTypePrivateRegistry},
			{source: "localterraform.com/org/module", want: telemetry.ModuleSourceTypePrivateRegistry},
			{source: "APP.TERRAFORM.IO/test/module", want: telemetry.ModuleSourceTypePrivateRegistry}, // case insensitive

			// Coder registry
			{source: "registry.coder.com/terraform/aws", want: telemetry.ModuleSourceTypeCoderRegistry},
			{source: "registry.coder.com/modules/base", want: telemetry.ModuleSourceTypeCoderRegistry},
			{source: "REGISTRY.CODER.COM/test/module", want: telemetry.ModuleSourceTypeCoderRegistry}, // case insensitive

			// GitHub
			{source: "github.com/hashicorp/terraform-aws-vpc", want: telemetry.ModuleSourceTypeGitHub},
			{source: "git::https://github.com/org/repo.git", want: telemetry.ModuleSourceTypeGitHub},
			{source: "git::https://github.com/org/repo//modules/vpc", want: telemetry.ModuleSourceTypeGitHub},

			// Bitbucket
			{source: "bitbucket.org/hashicorp/terraform-aws-vpc", want: telemetry.ModuleSourceTypeBitbucket},
			{source: "git::https://bitbucket.org/org/repo.git", want: telemetry.ModuleSourceTypeBitbucket},
			{source: "https://bitbucket.org/org/repo//modules/vpc", want: telemetry.ModuleSourceTypeBitbucket},

			// Generic Git
			{source: "git::ssh://git.internal.com/repo.git", want: telemetry.ModuleSourceTypeGit},
			{source: "git@gitlab.com:org/repo.git", want: telemetry.ModuleSourceTypeGit},
			{source: "git::https://git.internal.com/repo.git?ref=v1.0.0", want: telemetry.ModuleSourceTypeGit},

			// Mercurial
			{source: "hg::https://example.com/vpc.hg", want: telemetry.ModuleSourceTypeMercurial},
			{source: "hg::http://example.com/vpc.hg", want: telemetry.ModuleSourceTypeMercurial},
			{source: "hg::ssh://example.com/vpc.hg", want: telemetry.ModuleSourceTypeMercurial},

			// HTTP
			{source: "https://example.com/vpc-module.zip", want: telemetry.ModuleSourceTypeHTTP},
			{source: "http://example.com/modules/vpc", want: telemetry.ModuleSourceTypeHTTP},
			{source: "https://internal.network/terraform/modules", want: telemetry.ModuleSourceTypeHTTP},

			// S3
			{source: "s3::https://s3-eu-west-1.amazonaws.com/bucket/vpc", want: telemetry.ModuleSourceTypeS3},
			{source: "s3::https://bucket.s3.amazonaws.com/vpc", want: telemetry.ModuleSourceTypeS3},
			{source: "s3::http://bucket.s3.amazonaws.com/vpc?version=1", want: telemetry.ModuleSourceTypeS3},

			// GCS
			{source: "gcs::https://www.googleapis.com/storage/v1/bucket/vpc", want: telemetry.ModuleSourceTypeGCS},
			{source: "gcs::https://storage.googleapis.com/bucket/vpc", want: telemetry.ModuleSourceTypeGCS},
			{source: "gcs::https://bucket.storage.googleapis.com/vpc", want: telemetry.ModuleSourceTypeGCS},

			// Unknown
			{source: "custom://example.com/vpc", want: telemetry.ModuleSourceTypeUnknown},
			{source: "something-random", want: telemetry.ModuleSourceTypeUnknown},
			{source: "", want: telemetry.ModuleSourceTypeUnknown},
		}
		for _, c := range cases {
			require.Equal(t, c.want, telemetry.GetModuleSourceType(c.source))
		}
	})
	t.Run("IDPOrgSync", func(t *testing.T) {
		t.Parallel()
		ctx := testutil.Context(t, testutil.WaitMedium)
		db, _ := dbtestutil.NewDB(t)

		// 1. No org sync settings
		deployment, _ := collectSnapshot(t, db, nil)
		require.False(t, *deployment.IDPOrgSync)

		// 2. Org sync settings set in server flags
		deployment, _ = collectSnapshot(t, db, func(opts telemetry.Options) telemetry.Options {
			opts.DeploymentConfig = &codersdk.DeploymentValues{
				OIDC: codersdk.OIDCConfig{
					OrganizationField: "organizations",
				},
			}
			return opts
		})
		require.True(t, *deployment.IDPOrgSync)

		// 3. Org sync settings set in runtime config
		org, err := db.GetDefaultOrganization(ctx)
		require.NoError(t, err)
		sync := idpsync.NewAGPLSync(testutil.Logger(t), runtimeconfig.NewManager(), idpsync.DeploymentSyncSettings{})
		err = sync.UpdateOrganizationSettings(ctx, db, idpsync.OrganizationSyncSettings{
			Field: "organizations",
			Mapping: map[string][]uuid.UUID{
				"first": {org.ID},
			},
			AssignDefault: true,
		})
		require.NoError(t, err)
		deployment, _ = collectSnapshot(t, db, nil)
		require.True(t, *deployment.IDPOrgSync)
	})
}

// nolint:paralleltest
func TestTelemetryInstallSource(t *testing.T) {
	t.Setenv("CODER_TELEMETRY_INSTALL_SOURCE", "aws_marketplace")
	db := dbmem.New()
	deployment, _ := collectSnapshot(t, db, nil)
	require.Equal(t, "aws_marketplace", deployment.InstallSource)
}

func collectSnapshot(t *testing.T, db database.Store, addOptionsFn func(opts telemetry.Options) telemetry.Options) (*telemetry.Deployment, *telemetry.Snapshot) {
	t.Helper()
	deployment := make(chan *telemetry.Deployment, 64)
	snapshot := make(chan *telemetry.Snapshot, 64)
	r := chi.NewRouter()
	r.Post("/deployment", func(w http.ResponseWriter, r *http.Request) {
		require.Equal(t, buildinfo.Version(), r.Header.Get(telemetry.VersionHeader))
		w.WriteHeader(http.StatusAccepted)
		dd := &telemetry.Deployment{}
		err := json.NewDecoder(r.Body).Decode(dd)
		require.NoError(t, err)
		deployment <- dd
	})
	r.Post("/snapshot", func(w http.ResponseWriter, r *http.Request) {
		require.Equal(t, buildinfo.Version(), r.Header.Get(telemetry.VersionHeader))
		w.WriteHeader(http.StatusAccepted)
		ss := &telemetry.Snapshot{}
		err := json.NewDecoder(r.Body).Decode(ss)
		require.NoError(t, err)
		snapshot <- ss
	})
	server := httptest.NewServer(r)
	t.Cleanup(server.Close)
	serverURL, err := url.Parse(server.URL)
	require.NoError(t, err)
	options := telemetry.Options{
		Database:     db,
		Logger:       testutil.Logger(t),
		URL:          serverURL,
		DeploymentID: uuid.NewString(),
	}
	if addOptionsFn != nil {
		options = addOptionsFn(options)
	}

	reporter, err := telemetry.New(options)
	require.NoError(t, err)
	t.Cleanup(reporter.Close)
	return <-deployment, <-snapshot
}