add base handler and refactor H

service_a/internal/domains/meteo/handlers.go

@@ -4,15 +4,18 @@ import (
 	"bytes"
 	"crypto/sha256"
 	"encoding/hex"
-	"encoding/json"
 	"fmt"
 	"io"
 	"log/slog"
 	"net/http"
+	"servicea/internal/app"
+	"servicea/internal/domains"
+	"strconv"
 	"time"
 )
 
 type Handler struct {
+	domains.BaseHandler
 	*Service
 }
 
@@ -68,13 +71,48 @@ func (h *Handler) IngestCSV(w http.ResponseWriter, r *http.Request) {
 		"elapsed_ms", fileStats.ElapsedMS,
 		"file_checksum", fileStats.FileChecksum,
 	)
-
-	w.Header().Set("Content-Type", "application/json")
-	json.NewEncoder(w).Encode(H{
-		"stats": fileStats,
-	})
+	h.ToJSON(w, http.StatusOK, app.H{"stats": fileStats})
 }
 
 func (h *Handler) IngestExcel(w http.ResponseWriter, r *http.Request) {
 	fmt.Fprintf(w, "hello from excel")
 }
+
+func (h *Handler) GetMeteoData(w http.ResponseWriter, r *http.Request) {
+	queryParams := r.URL.Query()
+	pageInt := int(1)
+	limitInt := int(10)
+
+	page := queryParams.Get("page")
+	limit := queryParams.Get("limit")
+
+	if page != "" {
+		p, err := strconv.Atoi(page)
+		if err == nil {
+			pageInt = p
+		}
+	}
+
+	if limit != "" {
+		l, err := strconv.Atoi(limit)
+		if err == nil {
+			limitInt = l
+		} else {
+			limitInt = 10
+		}
+	}
+
+	params := GetMeteoData{
+		Location: queryParams.Get("city"),
+		From:     queryParams.Get("from"),
+		To:       queryParams.Get("to"),
+		Page:     pageInt,
+		Limit:    limitInt,
+	}
+
+	if err := params.Validate(); err != nil {
+		h.ToJSON(w, http.StatusBadRequest, app.H{"error": err.Error()})
+	}
+
+	slog.Info("params", "params", params)
+}