feat: remove redis

internal/pkg/grib/grib.go

@@ -3,7 +3,6 @@ package grib
 import (
 	"context"
 	"encoding/binary"
-	"fmt"
 	"math"
 	"net/http"
 	"os"
@@ -17,12 +16,6 @@ import (
 	"github.com/nilsmagnus/grib/griblib"
 )
 
-type RedisIface interface {
-	Lock(ctx context.Context, key string, ttl time.Duration) (func(context.Context), error)
-	Set(key string, value []byte, ttl time.Duration) error
-	Get(key string) ([]byte, error)
-}
-
 type Service interface {
 	Update(ctx context.Context) error
 	Extract(ctx context.Context, lat, lon, alt float64, ts time.Time) ([2]float64, error)
@@ -34,7 +27,6 @@ type ServiceConfig struct {
 	Dir        string
 	TTL        time.Duration
 	CacheTTL   time.Duration
-	Redis      RedisIface
 	Parallel   int
 	Client     *http.Client
 	DatasetURL string
@@ -134,12 +126,6 @@ func (s *service) Update(ctx context.Context) error {
 		}
 	}
 
-	unlock, err := s.cfg.Redis.Lock(ctx, "grib-dl", 45*time.Minute)
-	if err != nil {
-		return err
-	}
-	defer unlock(ctx)
-
 	// Check again after acquiring lock (double-checked locking pattern)
 	if d := s.data.Load(); d != nil {
 		runTime := time.Unix(d.runUTC, 0)
@@ -290,29 +276,6 @@ func (s *service) Extract(ctx context.Context, lat, lon, alt float64, ts time.Ti
 		return [2]float64(v), nil
 	}
 
-	// Try Redis cache
-	redisKey := fmt.Sprintf("grib:extract:%d", key)
-	if cached, err := s.cfg.Redis.Get(redisKey); err == nil {
-		var result [2]float64
-		if len(cached) == 16 {
-			result[0] = math.Float64frombits(binary.LittleEndian.Uint64(cached[:8]))
-			result[1] = math.Float64frombits(binary.LittleEndian.Uint64(cached[8:]))
-			s.cache.set(key, vec(result))
-			return result, nil
-		} else {
-			// Cache data is corrupted (wrong length)
-			return zero, errcodes.ErrRedisCacheCorrupted
-		}
-	} else {
-		// Check if it's a cache miss (expected error)
-		if errcode, ok := errcodes.AsErr(err); ok && errcode == errcodes.ErrRedisCacheMiss {
-			// Cache miss is expected, continue with calculation
-		} else {
-			// Unexpected error, return it
-			return zero, err
-		}
-	}
-
 	// Calculate result
 	td := ts.Sub(time.Unix(d.runUTC, 0)).Hours()
 	u, v := d.uv(lat, lon, alt, td)
@@ -321,12 +284,6 @@ func (s *service) Extract(ctx context.Context, lat, lon, alt float64, ts time.Ti
 	// Cache in memory
 	s.cache.set(key, vec(out))
 
-	// Cache in Redis
-	encoded := make([]byte, 16)
-	binary.LittleEndian.PutUint64(encoded[:8], math.Float64bits(out[0]))
-	binary.LittleEndian.PutUint64(encoded[8:], math.Float64bits(out[1]))
-	s.cfg.Redis.Set(redisKey, encoded, s.cfg.CacheTTL)
-
 	return out, nil
 }