Add new platform functions for image tile and parcel

platform/imagetile/imagetile.go

@@ -0,0 +1,38 @@
+package imagetile
+
+import (
+	"context"
+	"fmt"
+
+	"github.com/Gleipnir-Technology/arcgis-go"
+	"github.com/Gleipnir-Technology/nidus-sync/background"
+	"github.com/Gleipnir-Technology/nidus-sync/db/models"
+	//"github.com/rs/zerolog/log"
+)
+
+func ImageAtPoint(ctx context.Context, org *models.Organization, level uint, x, y float64) ([]byte, error) {
+	oauth, err := background.GetOAuthForOrg(ctx, org)
+	if err != nil {
+		return []byte{}, fmt.Errorf("get oauth for org: %w", err)
+	}
+	fssync, err := background.NewFieldSeeker(
+		ctx,
+		oauth,
+	)
+	map_service, err := aerialImageService(ctx, fssync.Arcgis)
+	if err != nil {
+		return []byte{}, fmt.Errorf("no map service: %w", err)
+	}
+	return map_service.TileGPS(ctx, fssync.Arcgis, level, x, y)
+}
+
+func aerialImageService(ctx context.Context, gis *arcgis.ArcGIS) (*arcgis.MapService, error) {
+	map_services, err := gis.MapServices(ctx)
+	if err != nil {
+		return nil, fmt.Errorf("aerial image service: %w", err)
+	}
+	for _, ms := range map_services {
+		return &ms, nil
+	}
+	return nil, fmt.Errorf("non found")
+}

platform/parcel.go

@@ -0,0 +1,41 @@
+package platform
+
+import (
+	"context"
+	"encoding/json"
+	"fmt"
+
+	"github.com/Gleipnir-Technology/bob"
+	"github.com/Gleipnir-Technology/bob/dialect/psql"
+	"github.com/Gleipnir-Technology/bob/dialect/psql/sm"
+	"github.com/Gleipnir-Technology/nidus-sync/db"
+	"github.com/paulmach/orb"
+	"github.com/stephenafamo/scan"
+	//"github.com/rs/zerolog/log"
+)
+
+func ParcelEnvelope(ctx context.Context, parcel_id int32) (*orb.Polygon, error) {
+	type _Row struct {
+		Apn         string
+		Description string
+		ID          int
+		Geometry    string
+		Envelope    string
+	}
+	row, err := bob.One(ctx, db.PGInstance.BobDB, psql.Select(
+		sm.Columns(
+			psql.F("ST_AsGeoJSON", psql.F("ST_Envelope", psql.Raw("geometry")))(),
+		),
+		sm.From("parcel"),
+		sm.Where(psql.Quote("id").EQ(psql.Arg(parcel_id))),
+	), scan.StructMapper[_Row]())
+	if err != nil {
+		return nil, fmt.Errorf("query parcel: %w", err)
+	}
+	var polygon orb.Polygon
+	err = json.Unmarshal([]byte(row.Envelope), &polygon)
+	if err != nil {
+		return nil, fmt.Errorf("unmarshal json: %w", err)
+	}
+	return &polygon, nil
+}