add base handler and refactor H

service_a/internal/domains/meteo/domain.go

@@ -5,8 +5,6 @@ import (
 	"time"
 )
 
-type H map[string]any
-
 type MeteoData struct {
 	Timestamp  time.Time `csv:"fecha"`
 	Location   string    `csv:"ciudad"`
@@ -29,18 +27,52 @@ type FileStats struct {
 	FileChecksum string `json:"file_checksum"`
 }
 
+type GetMeteoData struct {
+	Location string
+	From     string
+	To       string
+	Page     int
+	Limit    int
+}
+
+func (mt *GetMeteoData) Validate() error {
+	if mt.Location == "" {
+		return ErrMissingOrInvalidLocation
+	}
+
+	if mt.From == "" {
+		return ErrMissingOrInvalidFromDate
+	}
+
+	if mt.To == "" {
+		return ErrMissingOrInvalidToDate
+	}
+
+	if _, err := time.Parse("2006-01-02", mt.From); err != nil {
+		return ErrMissingOrInvalidFromDate
+	}
+
+	if _, err := time.Parse("2006-01-02", mt.To); err != nil {
+		return ErrMissingOrInvalidToDate
+	}
+
+	return nil
+}
+
 var (
 	ErrCannotParseFile            = errors.New("cannot parse file")
 	ErrValidateRecord             = errors.New("error validating record")
 	ErrRecordNotValid             = errors.New("record not valid")
 	ErrReadingCSVHeader           = errors.New("error reading CSV header")
 	ErrReadingCSVRow              = errors.New("error reading CSV row")
-	ErrMissingOrInvalidDateField  = errors.New("missing or invalid date field")
-	ErrMissingOrInvalidCityField  = errors.New("missing or invalid city field")
-	ErrMissingOrInvalidMaxTemp    = errors.New("missing or invalid max temp field")
-	ErrMissingOrInvalidMinTemp    = errors.New("missing or invalid min temp field")
-	ErrMissingOrInvalidRainfall   = errors.New("missing or invalid rainfall field")
-	ErrMissingOrInvalidCloudiness = errors.New("missing or invalid cloudiness field")
+	ErrMissingOrInvalidDate       = errors.New("missing or invalid date")
+	ErrMissingOrInvalidFromDate   = errors.New("missing or invalid from date")
+	ErrMissingOrInvalidToDate     = errors.New("missing or invalid to date")
+	ErrMissingOrInvalidLocation   = errors.New("missing or invalid location")
+	ErrMissingOrInvalidMaxTemp    = errors.New("missing or invalid max temp")
+	ErrMissingOrInvalidMinTemp    = errors.New("missing or invalid min temp")
+	ErrMissingOrInvalidRainfall   = errors.New("missing or invalid rainfall")
+	ErrMissingOrInvalidCloudiness = errors.New("missing or invalid cloudiness")
 	ErrMaxTempOutOfRange          = errors.New("max temp out of range (must be <= 60°C)")
 	ErrMinTempOutOfRange          = errors.New("min temp out of range (must be >= -20°C)")
 	ErrRainfallOutOfRange         = errors.New("rainfall out of range (must be 0-500 mm)")