package osquery_utils

import (
	"context"
	"fmt"
	"net"
	"strconv"
	"strings"
	"time"

	"github.com/fleetdm/fleet/v4/server/config"
	"github.com/fleetdm/fleet/v4/server/contexts/ctxerr"
	"github.com/fleetdm/fleet/v4/server/contexts/publicip"
	"github.com/fleetdm/fleet/v4/server/fleet"
	"github.com/go-kit/kit/log"
	"github.com/go-kit/kit/log/level"
	"github.com/spf13/cast"
)

type DetailQuery struct {
	// Query is the SQL query string.
	Query string
	// Discovery is the SQL query that defines whether the query will run or the host or not.
	// If not set, Fleet makes sure the query will always run.
	Discovery string
	// Platforms is a list of platforms to run the query on. If this value is
	// empty, run on all platforms.
	Platforms []string
	// IngestFunc translates a query result into an update to the host struct,
	// around data that lives on the hosts table.
	IngestFunc func(ctx context.Context, logger log.Logger, host *fleet.Host, rows []map[string]string) error
	// DirectIngestFunc gathers results from a query and directly works with the datastore to
	// persist them. This is usually used for host data that is stored in a separate table.
	DirectIngestFunc func(ctx context.Context, logger log.Logger, host *fleet.Host, ds fleet.Datastore, rows []map[string]string, failed bool) error
}

// RunsForPlatform determines whether this detail query should run on the given platform
func (q *DetailQuery) RunsForPlatform(platform string) bool {
	if len(q.Platforms) == 0 {
		return true
	}
	for _, p := range q.Platforms {
		if p == platform {
			return true
		}
	}
	return false
}

// detailQueries defines the detail queries that should be run on the host, as
// well as how the results of those queries should be ingested into the
// fleet.Host data model. This map should not be modified at runtime.
var detailQueries = map[string]DetailQuery{
	"network_interface": {
		Query: `select ia.address, id.mac, id.interface
                        from interface_details id join interface_addresses ia
                               on ia.interface = id.interface where length(mac) > 0
                               order by (ibytes + obytes) desc`,
		IngestFunc: func(ctx context.Context, logger log.Logger, host *fleet.Host, rows []map[string]string) (err error) {
			if len(rows) == 0 {
				logger.Log("component", "service", "method", "IngestFunc", "err",
					"detail_query_network_interface expected 1 or more results")
				return nil
			}

			// Rows are ordered by traffic, so we will get the most active
			// interface by iterating in order
			var firstIPv4, firstIPv6 map[string]string
			for _, row := range rows {
				ip := net.ParseIP(row["address"])
				if ip == nil {
					continue
				}

				// Skip link-local and loopback interfaces
				if ip.IsLinkLocalUnicast() || ip.IsLoopback() {
					continue
				}

				// Skip docker interfaces as these are sometimes heavily
				// trafficked, but rarely the interface that Fleet users want to
				// see. https://github.com/fleetdm/fleet/issues/4754.
				if strings.Contains(row["interface"], "docker") {
					continue
				}

				if strings.Contains(row["address"], ":") {
					// IPv6
					if firstIPv6 == nil {
						firstIPv6 = row
					}
				} else {
					// IPv4
					if firstIPv4 == nil {
						firstIPv4 = row
					}
				}
			}

			var selected map[string]string
			switch {
			// Prefer IPv4
			case firstIPv4 != nil:
				selected = firstIPv4
			// Otherwise IPv6
			case firstIPv6 != nil:
				selected = firstIPv6
			// If only link-local and loopback found, still use the first
			// interface so that we don't get an empty value.
			default:
				selected = rows[0]
			}

			host.PrimaryIP = selected["address"]
			host.PrimaryMac = selected["mac"]
			host.PublicIP = publicip.FromContext(ctx)
			return nil
		},
	},
	"os_version": {
		Query: "select * from os_version limit 1",
		IngestFunc: func(ctx context.Context, logger log.Logger, host *fleet.Host, rows []map[string]string) error {
			if len(rows) != 1 {
				logger.Log("component", "service", "method", "IngestFunc", "err",
					fmt.Sprintf("detail_query_os_version expected single result got %d", len(rows)))
				return nil
			}

			if rows[0]["major"] != "0" || rows[0]["minor"] != "0" || rows[0]["patch"] != "0" {
				host.OSVersion = fmt.Sprintf(
					"%s %s.%s.%s",
					rows[0]["name"],
					rows[0]["major"],
					rows[0]["minor"],
					rows[0]["patch"],
				)
			} else {
				host.OSVersion = fmt.Sprintf(
					"%s %s",
					rows[0]["name"],
					rows[0]["build"],
				)
			}
			host.OSVersion = strings.Trim(host.OSVersion, ".")

			if build, ok := rows[0]["build"]; ok {
				host.Build = build
			}

			host.Platform = rows[0]["platform"]
			host.PlatformLike = rows[0]["platform_like"]
			host.CodeName = rows[0]["code_name"]

			// On centos6 there is an osquery bug that leaves
			// platform empty. Here we workaround.
			if host.Platform == "" &&
				strings.Contains(strings.ToLower(rows[0]["name"]), "centos") {
				host.Platform = "centos"
			}

			return nil
		},
	},
	"osquery_flags": {
		// Collect the interval info (used for online status
		// calculation) from the osquery flags. We typically control
		// distributed_interval (but it's not required), and typically
		// do not control config_tls_refresh.
		Query: `select name, value from osquery_flags where name in ("distributed_interval", "config_tls_refresh", "config_refresh", "logger_tls_period")`,
		IngestFunc: func(ctx context.Context, logger log.Logger, host *fleet.Host, rows []map[string]string) error {
			var configTLSRefresh, configRefresh uint
			var configRefreshSeen, configTLSRefreshSeen bool
			for _, row := range rows {
				switch row["name"] {

				case "distributed_interval":
					interval, err := strconv.Atoi(EmptyToZero(row["value"]))
					if err != nil {
						return fmt.Errorf("parsing distributed_interval: %w", err)
					}
					host.DistributedInterval = uint(interval)

				case "config_tls_refresh":
					// Prior to osquery 2.4.6, the flag was
					// called `config_tls_refresh`.
					interval, err := strconv.Atoi(EmptyToZero(row["value"]))
					if err != nil {
						return fmt.Errorf("parsing config_tls_refresh: %w", err)
					}
					configTLSRefresh = uint(interval)
					configTLSRefreshSeen = true

				case "config_refresh":
					// After 2.4.6 `config_tls_refresh` was
					// aliased to `config_refresh`.
					interval, err := strconv.Atoi(EmptyToZero(row["value"]))
					if err != nil {
						return fmt.Errorf("parsing config_refresh: %w", err)
					}
					configRefresh = uint(interval)
					configRefreshSeen = true

				case "logger_tls_period":
					interval, err := strconv.Atoi(EmptyToZero(row["value"]))
					if err != nil {
						return fmt.Errorf("parsing logger_tls_period: %w", err)
					}
					host.LoggerTLSPeriod = uint(interval)
				}
			}

			// Since the `config_refresh` flag existed prior to
			// 2.4.6 and had a different meaning, we prefer
			// `config_tls_refresh` if it was set, and use
			// `config_refresh` as a fallback.
			if configTLSRefreshSeen {
				host.ConfigTLSRefresh = configTLSRefresh
			} else if configRefreshSeen {
				host.ConfigTLSRefresh = configRefresh
			}

			return nil
		},
	},
	"osquery_info": {
		Query: "select * from osquery_info limit 1",
		IngestFunc: func(ctx context.Context, logger log.Logger, host *fleet.Host, rows []map[string]string) error {
			if len(rows) != 1 {
				logger.Log("component", "service", "method", "IngestFunc", "err",
					fmt.Sprintf("detail_query_osquery_info expected single result got %d", len(rows)))
				return nil
			}

			host.OsqueryVersion = rows[0]["version"]

			return nil
		},
	},
	"system_info": {
		Query: "select * from system_info limit 1",
		IngestFunc: func(ctx context.Context, logger log.Logger, host *fleet.Host, rows []map[string]string) error {
			if len(rows) != 1 {
				logger.Log("component", "service", "method", "IngestFunc", "err",
					fmt.Sprintf("detail_query_system_info expected single result got %d", len(rows)))
				return nil
			}

			var err error
			host.Memory, err = strconv.ParseInt(EmptyToZero(rows[0]["physical_memory"]), 10, 64)
			if err != nil {
				return err
			}
			host.Hostname = rows[0]["hostname"]
			host.UUID = rows[0]["uuid"]
			host.CPUType = rows[0]["cpu_type"]
			host.CPUSubtype = rows[0]["cpu_subtype"]
			host.CPUBrand = rows[0]["cpu_brand"]
			host.CPUPhysicalCores, err = strconv.Atoi(EmptyToZero(rows[0]["cpu_physical_cores"]))
			if err != nil {
				return err
			}
			host.CPULogicalCores, err = strconv.Atoi(EmptyToZero(rows[0]["cpu_logical_cores"]))
			if err != nil {
				return err
			}
			host.HardwareVendor = rows[0]["hardware_vendor"]
			host.HardwareModel = rows[0]["hardware_model"]
			host.HardwareVersion = rows[0]["hardware_version"]
			host.HardwareSerial = rows[0]["hardware_serial"]
			host.ComputerName = rows[0]["computer_name"]
			return nil
		},
	},
	"uptime": {
		Query: "select * from uptime limit 1",
		IngestFunc: func(ctx context.Context, logger log.Logger, host *fleet.Host, rows []map[string]string) error {
			if len(rows) != 1 {
				logger.Log("component", "service", "method", "IngestFunc", "err",
					fmt.Sprintf("detail_query_uptime expected single result got %d", len(rows)))
				return nil
			}

			uptimeSeconds, err := strconv.Atoi(EmptyToZero(rows[0]["total_seconds"]))
			if err != nil {
				return err
			}
			host.Uptime = time.Duration(uptimeSeconds) * time.Second

			return nil
		},
	},
	"disk_space_unix": {
		Query: `
SELECT (blocks_available * 100 / blocks) AS percent_disk_space_available,
       round((blocks_available * blocks_size *10e-10),2) AS gigs_disk_space_available
FROM mounts WHERE path = '/' LIMIT 1;`,
		Platforms:  append(fleet.HostLinuxOSs, "darwin"),
		IngestFunc: ingestDiskSpace,
	},
	"disk_space_windows": {
		Query: `
SELECT ROUND((sum(free_space) * 100 * 10e-10) / (sum(size) * 10e-10)) AS percent_disk_space_available,
       ROUND(sum(free_space) * 10e-10) AS gigs_disk_space_available
FROM logical_drives WHERE file_system = 'NTFS' LIMIT 1;`,
		Platforms:  []string{"windows"},
		IngestFunc: ingestDiskSpace,
	},
	"mdm": {
		Query:            `select enrolled, server_url, installed_from_dep from mdm;`,
		DirectIngestFunc: directIngestMDM,
		Platforms:        []string{"darwin"},
	},
	"munki_info": {
		Query:            `select version from munki_info;`,
		DirectIngestFunc: directIngestMunkiInfo,
		Platforms:        []string{"darwin"},
	},
	"google_chrome_profiles": {
		Query:            `SELECT email FROM google_chrome_profiles WHERE NOT ephemeral AND email <> ''`,
		DirectIngestFunc: directIngestChromeProfiles,
		Discovery:        discoveryTable("google_chrome_profiles"),
	},
	"orbit_info": {
		Query:            `SELECT * FROM orbit_info`,
		DirectIngestFunc: directIngestOrbitInfo,
		Discovery:        discoveryTable("orbit_info"),
	},
}

// discoveryTable returns a query to determine whether a table exists or not.
func discoveryTable(tableName string) string {
	return fmt.Sprintf("SELECT 1 FROM osquery_registry WHERE active = true AND registry = 'table' AND name = '%s';", tableName)
}

var softwareMacOS = DetailQuery{
	// Note that we create the cached_users CTE (the WITH clause) in order to suggest to SQLite
	// that it generates the users once instead of once for each UNIONed query. We use CROSS JOIN to
	// ensure that the nested loops in the query generation are ordered correctly for the _extensions
	// tables that need a uid parameter. CROSS JOIN ensures that SQLite does not reorder the loop
	// nesting, which is important as described in https://youtu.be/hcn3HIcHAAo?t=77.
	Query: `
WITH cached_users AS (SELECT * FROM users)
SELECT
  name AS name,
  bundle_short_version AS version,
  'Application (macOS)' AS type,
  bundle_identifier AS bundle_identifier,
  'apps' AS source,
  last_opened_time AS last_opened_at
FROM apps
UNION
SELECT
  name AS name,
  version AS version,
  'Package (Python)' AS type,
  '' AS bundle_identifier,
  'python_packages' AS source,
  0 AS last_opened_at
FROM python_packages
UNION
SELECT
  name AS name,
  version AS version,
  'Browser plugin (Chrome)' AS type,
  '' AS bundle_identifier,
  'chrome_extensions' AS source,
  0 AS last_opened_at
FROM cached_users CROSS JOIN chrome_extensions USING (uid)
UNION
SELECT
  name AS name,
  version AS version,
  'Browser plugin (Firefox)' AS type,
  '' AS bundle_identifier,
  'firefox_addons' AS source,
  0 AS last_opened_at
FROM cached_users CROSS JOIN firefox_addons USING (uid)
UNION
SELECT
  name As name,
  version AS version,
  'Browser plugin (Safari)' AS type,
  '' AS bundle_identifier,
  'safari_extensions' AS source,
  0 AS last_opened_at
FROM cached_users CROSS JOIN safari_extensions USING (uid)
UNION
SELECT
  name AS name,
  version AS version,
  'Package (Atom)' AS type,
  '' AS bundle_identifier,
  'atom_packages' AS source,
  0 AS last_opened_at
FROM cached_users CROSS JOIN atom_packages USING (uid)
UNION
SELECT
  name AS name,
  version AS version,
  'Package (Homebrew)' AS type,
  '' AS bundle_identifier,
  'homebrew_packages' AS source,
  0 AS last_opened_at
FROM homebrew_packages;
`,
	Platforms:        []string{"darwin"},
	DirectIngestFunc: directIngestSoftware,
}

var scheduledQueryStats = DetailQuery{
	Query: `
			SELECT *,
				(SELECT value from osquery_flags where name = 'pack_delimiter') AS delimiter
			FROM osquery_schedule`,
	DirectIngestFunc: directIngestScheduledQueryStats,
}

var softwareLinux = DetailQuery{
	Query: `
WITH cached_users AS (SELECT * FROM users)
SELECT
  name AS name,
  version AS version,
  'Package (deb)' AS type,
  'deb_packages' AS source,
  '' AS release,
  '' AS vendor,
  '' AS arch
FROM deb_packages
UNION
SELECT
  package AS name,
  version AS version,
  'Package (Portage)' AS type,
  'portage_packages' AS source,
  '' AS release,
  '' AS vendor,
  '' AS arch
FROM portage_packages
UNION
SELECT
  name AS name,
  version AS version,
  'Package (RPM)' AS type,
  'rpm_packages' AS source,
  release AS release,
  vendor AS vendor,
  arch AS arch
FROM rpm_packages
UNION
SELECT
  name AS name,
  version AS version,
  'Package (NPM)' AS type,
  'npm_packages' AS source,
  '' AS release,
  '' AS vendor,
  '' AS arch
FROM npm_packages
UNION
SELECT
  name AS name,
  version AS version,
  'Browser plugin (Chrome)' AS type,
  'chrome_extensions' AS source,
  '' AS release,
  '' AS vendor,
  '' AS arch
FROM cached_users CROSS JOIN chrome_extensions USING (uid)
UNION
SELECT
  name AS name,
  version AS version,
  'Browser plugin (Firefox)' AS type,
  'firefox_addons' AS source,
  '' AS release,
  '' AS vendor,
  '' AS arch
FROM cached_users CROSS JOIN firefox_addons USING (uid)
UNION
SELECT
  name AS name,
  version AS version,
  'Package (Atom)' AS type,
  'atom_packages' AS source,
  '' AS release,
  '' AS vendor,
  '' AS arch
FROM cached_users CROSS JOIN atom_packages USING (uid)
UNION
SELECT
  name AS name,
  version AS version,
  'Package (Python)' AS type,
  'python_packages' AS source,
  '' AS release,
  '' AS vendor,
  '' AS arch
FROM python_packages;
`,
	Platforms:        fleet.HostLinuxOSs,
	DirectIngestFunc: directIngestSoftware,
}

var softwareWindows = DetailQuery{
	Query: `
WITH cached_users AS (SELECT * FROM users WHERE directory <> '')
SELECT
  name AS name,
  version AS version,
  'Program (Windows)' AS type,
  'programs' AS source
FROM programs
UNION
SELECT
  name AS name,
  version AS version,
  'Package (Python)' AS type,
  'python_packages' AS source
FROM python_packages
UNION
SELECT
  name AS name,
  version AS version,
  'Browser plugin (IE)' AS type,
  'ie_extensions' AS source
FROM ie_extensions
UNION
SELECT
  name AS name,
  version AS version,
  'Browser plugin (Chrome)' AS type,
  'chrome_extensions' AS source
FROM cached_users CROSS JOIN chrome_extensions USING (uid)
UNION
SELECT
  name AS name,
  version AS version,
  'Browser plugin (Firefox)' AS type,
  'firefox_addons' AS source
FROM cached_users CROSS JOIN firefox_addons USING (uid)
UNION
SELECT
  name AS name,
  version AS version,
  'Package (Chocolatey)' AS type,
  'chocolatey_packages' AS source
FROM chocolatey_packages
UNION
SELECT
  name AS name,
  version AS version,
  'Package (Atom)' AS type,
  'atom_packages' AS source
FROM cached_users CROSS JOIN atom_packages USING (uid)
UNION
SELECT
  name AS name,
  version AS version,
  'Package (Python)' AS type,
  'python_packages' AS source
FROM python_packages;
`,
	Platforms:        []string{"windows"},
	DirectIngestFunc: directIngestSoftware,
}

var usersQuery = DetailQuery{
	// Note we use the cached_groups CTE (`WITH` clause) here to suggest to SQLite that it generate
	// the `groups` table only once. Without doing this, on some Windows systems (Domain Controllers)
	// with many user accounts and groups, this query could be very expensive as the `groups` table
	// was generated once for each user.
	Query: `
WITH cached_groups AS (select * from groups)
SELECT uid, username, type, groupname, shell
FROM users LEFT JOIN cached_groups USING (gid)
WHERE type <> 'special' AND shell NOT LIKE '%/false' AND shell NOT LIKE '%/nologin' AND shell NOT LIKE '%/shutdown' AND shell NOT LIKE '%/halt' AND username NOT LIKE '%$' AND username NOT LIKE '\_%' ESCAPE '\' AND NOT (username = 'sync' AND shell ='/bin/sync')`,
	DirectIngestFunc: directIngestUsers,
}

func directIngestChromeProfiles(ctx context.Context, logger log.Logger, host *fleet.Host, ds fleet.Datastore, rows []map[string]string, failed bool) error {
	if failed {
		// assume the extension is not there
		return nil
	}

	mapping := make([]*fleet.HostDeviceMapping, 0, len(rows))
	for _, row := range rows {
		mapping = append(mapping, &fleet.HostDeviceMapping{
			HostID: host.ID,
			Email:  row["email"],
			Source: "google_chrome_profiles",
		})
	}
	return ds.ReplaceHostDeviceMapping(ctx, host.ID, mapping)
}

func directIngestOrbitInfo(ctx context.Context, logger log.Logger, host *fleet.Host, ds fleet.Datastore, rows []map[string]string, failed bool) error {
	if len(rows) != 1 {
		return ctxerr.Errorf(ctx, "invalid number of orbit_info rows: %d", len(rows))
	}
	deviceAuthToken := rows[0]["device_auth_token"]
	if deviceAuthToken == "" {
		return ctxerr.New(ctx, "empty orbit_info.device_auth_token")
	}
	if err := ds.SetOrUpdateDeviceAuthToken(ctx, host.ID, deviceAuthToken); err != nil {
		return ctxerr.Wrap(ctx, err, "set or update device_auth_token")
	}
	return nil
}

func directIngestScheduledQueryStats(ctx context.Context, logger log.Logger, host *fleet.Host, ds fleet.Datastore, rows []map[string]string, failed bool) error {
	if failed {
		level.Error(logger).Log("op", "directIngestScheduledQueryStats", "err", "failed")
		return nil
	}

	packs := map[string][]fleet.ScheduledQueryStats{}
	for _, row := range rows {
		providedName := row["name"]
		if providedName == "" {
			level.Debug(logger).Log(
				"msg", "host reported scheduled query with empty name",
				"host", host.Hostname,
			)
			continue
		}
		delimiter := row["delimiter"]
		if delimiter == "" {
			level.Debug(logger).Log(
				"msg", "host reported scheduled query with empty delimiter",
				"host", host.Hostname,
			)
			continue
		}

		// Split with a limit of 2 in case query name includes the
		// delimiter. Not much we can do if pack name includes the
		// delimiter.
		trimmedName := strings.TrimPrefix(providedName, "pack"+delimiter)
		parts := strings.SplitN(trimmedName, delimiter, 2)
		if len(parts) != 2 {
			level.Debug(logger).Log(
				"msg", "could not split pack and query names",
				"host", host.Hostname,
				"name", providedName,
				"delimiter", delimiter,
			)
			continue
		}
		packName, scheduledName := parts[0], parts[1]

		stats := fleet.ScheduledQueryStats{
			ScheduledQueryName: scheduledName,
			PackName:           packName,
			AverageMemory:      cast.ToInt(row["average_memory"]),
			Denylisted:         cast.ToBool(row["denylisted"]),
			Executions:         cast.ToInt(row["executions"]),
			Interval:           cast.ToInt(row["interval"]),
			// Cast to int first to allow cast.ToTime to interpret the unix timestamp.
			LastExecuted: time.Unix(cast.ToInt64(row["last_executed"]), 0).UTC(),
			OutputSize:   cast.ToInt(row["output_size"]),
			SystemTime:   cast.ToInt(row["system_time"]),
			UserTime:     cast.ToInt(row["user_time"]),
			WallTime:     cast.ToInt(row["wall_time"]),
		}
		packs[packName] = append(packs[packName], stats)
	}

	packStats := []fleet.PackStats{}
	for packName, stats := range packs {
		packStats = append(
			packStats,
			fleet.PackStats{
				PackName:   packName,
				QueryStats: stats,
			},
		)
	}
	if err := ds.SaveHostPackStats(ctx, host.ID, packStats); err != nil {
		return ctxerr.Wrap(ctx, err, "save host pack stats")
	}

	return nil
}

func directIngestSoftware(ctx context.Context, logger log.Logger, host *fleet.Host, ds fleet.Datastore, rows []map[string]string, failed bool) error {
	if failed {
		level.Error(logger).Log("op", "directIngestSoftware", "err", "failed")
		return nil
	}

	var software []fleet.Software
	for _, row := range rows {
		name := row["name"]
		version := row["version"]
		source := row["source"]
		bundleIdentifier := row["bundle_identifier"]
		if name == "" {
			level.Debug(logger).Log(
				"msg", "host reported software with empty name",
				"host", host.Hostname,
				"version", version,
				"source", source,
			)
			continue
		}
		if source == "" {
			level.Debug(logger).Log(
				"msg", "host reported software with empty name",
				"host", host.Hostname,
				"version", version,
				"name", name,
			)
			continue
		}

		var lastOpenedAt time.Time
		if lastOpenedRaw := row["last_opened_at"]; lastOpenedRaw != "" {
			if lastOpenedEpoch, err := strconv.ParseFloat(lastOpenedRaw, 64); err != nil {
				level.Debug(logger).Log(
					"msg", "host reported software with invalid last opened timestamp",
					"host", host.Hostname,
					"version", version,
					"name", name,
					"last_opened_at", lastOpenedRaw,
				)
			} else if lastOpenedEpoch > 0 {
				lastOpenedAt = time.Unix(int64(lastOpenedEpoch), 0).UTC()
			}
		}

		s := fleet.Software{
			Name:             name,
			Version:          version,
			Source:           source,
			BundleIdentifier: bundleIdentifier,

			Release: row["release"],
			Vendor:  row["vendor"],
			Arch:    row["arch"],
		}
		if !lastOpenedAt.IsZero() {
			s.LastOpenedAt = &lastOpenedAt
		}
		software = append(software, s)
	}

	if err := ds.UpdateHostSoftware(ctx, host.ID, software); err != nil {
		return ctxerr.Wrap(ctx, err, "update host software")
	}

	return nil
}

func directIngestUsers(ctx context.Context, logger log.Logger, host *fleet.Host, ds fleet.Datastore, rows []map[string]string, failed bool) error {
	var users []fleet.HostUser
	for _, row := range rows {
		uid, err := strconv.Atoi(row["uid"])
		if err != nil {
			return fmt.Errorf("converting uid %s to int: %w", row["uid"], err)
		}
		username := row["username"]
		type_ := row["type"]
		groupname := row["groupname"]
		shell := row["shell"]
		u := fleet.HostUser{
			Uid:       uint(uid),
			Username:  username,
			Type:      type_,
			GroupName: groupname,
			Shell:     shell,
		}
		users = append(users, u)
	}
	if err := ds.SaveHostUsers(ctx, host.ID, users); err != nil {
		return ctxerr.Wrap(ctx, err, "update host users")
	}
	return nil
}

func ingestDiskSpace(ctx context.Context, logger log.Logger, host *fleet.Host, rows []map[string]string) error {
	if len(rows) != 1 {
		logger.Log("component", "service", "method", "ingestDiskSpace", "err",
			fmt.Sprintf("detail_query_disk_space expected single result got %d", len(rows)))
		return nil
	}

	var err error
	host.GigsDiskSpaceAvailable, err = strconv.ParseFloat(EmptyToZero(rows[0]["gigs_disk_space_available"]), 64)
	if err != nil {
		return err
	}
	host.PercentDiskSpaceAvailable, err = strconv.ParseFloat(EmptyToZero(rows[0]["percent_disk_space_available"]), 64)
	if err != nil {
		return err
	}
	return nil
}

func directIngestMDM(ctx context.Context, logger log.Logger, host *fleet.Host, ds fleet.Datastore, rows []map[string]string, failed bool) error {
	if len(rows) == 0 || failed {
		// assume the extension is not there
		return nil
	}
	if len(rows) > 1 {
		logger.Log("component", "service", "method", "ingestMDM", "warn",
			fmt.Sprintf("mdm expected single result got %d", len(rows)))
	}
	enrolledVal := rows[0]["enrolled"]
	if enrolledVal == "" {
		return ctxerr.Wrap(ctx, fmt.Errorf("missing mdm.enrolled value: %d", host.ID))
	}
	enrolled, err := strconv.ParseBool(enrolledVal)
	if err != nil {
		return ctxerr.Wrap(ctx, err, "parsing enrolled")
	}
	installedFromDepVal := rows[0]["installed_from_dep"]
	installedFromDep := false
	if installedFromDepVal != "" {
		installedFromDep, err = strconv.ParseBool(installedFromDepVal)
		if err != nil {
			return ctxerr.Wrap(ctx, err, "parsing installed_from_dep")
		}
	}

	return ds.SetOrUpdateMDMData(ctx, host.ID, enrolled, rows[0]["server_url"], installedFromDep)
}

func directIngestMunkiInfo(ctx context.Context, logger log.Logger, host *fleet.Host, ds fleet.Datastore, rows []map[string]string, failed bool) error {
	if len(rows) == 0 || failed {
		// assume the extension is not there
		return nil
	}
	if len(rows) > 1 {
		logger.Log("component", "service", "method", "ingestMunkiInfo", "warn",
			fmt.Sprintf("munki_info expected single result got %d", len(rows)))
	}

	return ds.SetOrUpdateMunkiVersion(ctx, host.ID, rows[0]["version"])
}

func GetDetailQueries(ac *fleet.AppConfig, fleetConfig config.FleetConfig) map[string]DetailQuery {
	generatedMap := make(map[string]DetailQuery)
	for key, query := range detailQueries {
		generatedMap[key] = query
	}

	if ac != nil && ac.HostSettings.EnableSoftwareInventory {
		generatedMap["software_macos"] = softwareMacOS
		generatedMap["software_linux"] = softwareLinux
		generatedMap["software_windows"] = softwareWindows
	}

	if ac != nil && ac.HostSettings.EnableHostUsers {
		generatedMap["users"] = usersQuery
	}

	if fleetConfig.App.EnableScheduledQueryStats {
		generatedMap["scheduled_query_stats"] = scheduledQueryStats
	}

	return generatedMap
}