turash/bugulma/backend/internal/geospatial/postgis_integration.go
Damir Mukimov 000eab4740
Major repository reorganization and missing backend endpoints implementation
Repository Structure:
- Move files from cluttered root directory into organized structure
- Create archive/ for archived data and scraper results
- Create bugulma/ for the complete application (frontend + backend)
- Create data/ for sample datasets and reference materials
- Create docs/ for comprehensive documentation structure
- Create scripts/ for utility scripts and API tools

Backend Implementation:
- Implement 3 missing backend endpoints identified in gap analysis:
  * GET /api/v1/organizations/{id}/matching/direct - Direct symbiosis matches
  * GET /api/v1/users/me/organizations - User organizations
  * POST /api/v1/proposals/{id}/status - Update proposal status
- Add complete proposal domain model, repository, and service layers
- Create database migration for proposals table
- Fix CLI server command registration issue

API Documentation:
- Add comprehensive proposals.md API documentation
- Update README.md with Users and Proposals API sections
- Document all request/response formats, error codes, and business rules

Code Quality:
- Follow existing Go backend architecture patterns
- Add proper error handling and validation
- Match frontend expected response schemas
- Maintain clean separation of concerns (handler -> service -> repository)
2025-11-25 06:01:16 +01:00

68 lines
2.1 KiB
Go

package geospatial
import (
"fmt"
)
// PostGISIntegrationImpl implements PostGISIntegration interface
type PostGISIntegrationImpl struct {
config *Config
}
// NewPostGISIntegration creates a new PostGIS integration helper
func NewPostGISIntegration(config *Config) PostGISIntegration {
return &PostGISIntegrationImpl{
config: config,
}
}
// PointToPostGIS generates a PostGIS geometry string for a point
func (pgi *PostGISIntegrationImpl) PointToPostGIS(point Point) string {
return fmt.Sprintf("ST_GeogFromText('POINT(%f %f)')", point.Longitude, point.Latitude)
}
// BoundingBoxToPostGIS generates a PostGIS geometry string for a bounding box
func (pgi *PostGISIntegrationImpl) BoundingBoxToPostGIS(bbox BoundingBox) string {
// Create a POLYGON from bounding box
return fmt.Sprintf(
"ST_GeogFromText('POLYGON((%f %f, %f %f, %f %f, %f %f, %f %f))')",
bbox.SouthWest.Longitude, bbox.SouthWest.Latitude, // Bottom-left
bbox.NorthEast.Longitude, bbox.SouthWest.Latitude, // Bottom-right
bbox.NorthEast.Longitude, bbox.NorthEast.Latitude, // Top-right
bbox.SouthWest.Longitude, bbox.NorthEast.Latitude, // Top-left
bbox.SouthWest.Longitude, bbox.SouthWest.Latitude, // Close polygon
)
}
// WithinRadiusQuery generates a PostGIS query for finding points within a radius
func (pgi *PostGISIntegrationImpl) WithinRadiusQuery(center Point, radiusKm float64) (string, []interface{}) {
radiusMeters := radiusKm * 1000
query := `
ST_DWithin(
location_geometry::geography,
ST_GeogFromText('POINT(? ?)'),
?
)
`
args := []interface{}{center.Longitude, center.Latitude, radiusMeters}
return query, args
}
// DistanceQuery generates a PostGIS query for calculating distance
func (pgi *PostGISIntegrationImpl) DistanceQuery(p1, p2 Point) string {
return fmt.Sprintf(
"ST_Distance(%s::geography, %s::geography) / 1000",
pgi.PointToPostGIS(p1),
pgi.PointToPostGIS(p2),
)
}
// BearingQuery generates a PostGIS query for calculating bearing
func (pgi *PostGISIntegrationImpl) BearingQuery(from, to Point) string {
return fmt.Sprintf(
"ST_Azimuth(%s, %s)",
pgi.PointToPostGIS(from),
pgi.PointToPostGIS(to),
)
}