SurfGo

// Simplified version of actual production code
package repository

import (
	"context"
	"database/sql"
	"encoding/json"
	"fmt"
	"time"
)

// BuoyRepository handles data access for buoy forecast data
type BuoyRepository struct {
	db *sql.DB
}

// NewBuoyRepository creates a new buoy repository instance
func NewBuoyRepository(db *sql.DB) *BuoyRepository {
	return &BuoyRepository{db: db}
}

// GetLatestBuoyForecast retrieves the most recent buoy forecast for a spot
func (r *BuoyRepository) GetLatestBuoyForecast(ctx context.Context, spotID int, stationID string) (interface{}, error) {
	var data []byte
	var fetchTime time.Time

	query := `SELECT data, fetch_time
			  FROM buoy_forecasts
			  WHERE spot_id = ? AND station_id = ?
			  ORDER BY fetch_time DESC
			  LIMIT 1`

	err := r.db.QueryRowContext(ctx, query, spotID, stationID).Scan(&data, &fetchTime)
	if err != nil {
		if err == sql.ErrNoRows {
			return nil, fmt.Errorf("no forecast data found for spot %d, station %s", spotID, stationID)
		}
		return nil, fmt.Errorf("error querying forecast: %w", err)
	}

	var forecast interface{}
	if err := json.Unmarshal(data, &forecast); err != nil {
		return nil, fmt.Errorf("error parsing forecast data: %w", err)
	}

	return forecast, nil
}

# Simplified version of actual production code
import logging
from fastapi import APIRouter, Depends, HTTPException

# Import services and models
from internal.prediction.service import PredictionService
from internal.buoy_forecast.service import BuoyForecastService
from internal.prediction.models import PredictionResponse

# Import spot data maps
from internal.prediction.spot_data import (
    spot_to_buoy_map,
    spot_to_tide_station_map,
    local_knowledge_base
)

router = APIRouter()
logger = logging.getLogger(__name__)

# --- Dependency Injectors ---
def get_prediction_service():
    return PredictionService()

def get_buoy_forecast_service():
    return BuoyForecastService()

@router.get("/predict/{spot}", response_model=PredictionResponse)
async def get_surf_prediction(
    spot: str,
    pred_service: PredictionService = Depends(get_prediction_service),
    buoy_service: BuoyForecastService = Depends(get_buoy_forecast_service)
):
    """Generates an AI-powered surf prediction for a specific spot."""

    # Get spot-specific data sources
    buoy_id = spot_to_buoy_map.get(spot)
    knowledge = local_knowledge_base.get(spot, "")
    
    # Fetch buoy data
    buoy_data = await buoy_service.get_buoy_data(buoy_id)
    
    # Generate AI prediction
    prediction_text, error = await pred_service.generate_surf_prediction(
        spot_name=spot,
        buoy_data=buoy_data,
        local_knowledge=knowledge
    )

    return PredictionResponse(spot=spot, prediction=prediction_text, error=error)