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handlers.go
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/
handlers.go
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package http
import (
"encoding/json"
"net/http"
"strconv"
"github.com/ezhdanovskiy/wallets/internal/consts"
"github.com/ezhdanovskiy/wallets/internal/csv"
"github.com/ezhdanovskiy/wallets/internal/dto"
"github.com/ezhdanovskiy/wallets/internal/httperr"
)
func (s *Server) createWallet(w http.ResponseWriter, r *http.Request) {
s.log.Debug("createWallet")
var wallet dto.CreateWalletRequest
if err := json.NewDecoder(r.Body).Decode(&wallet); err != nil {
s.writeErrorResponse(w, ErrBodyDecode.Wrap(err))
return
}
err := s.svc.CreateWallet(wallet)
if err != nil {
s.writeErrorResponse(w, err)
return
}
s.writeResponse(w, http.StatusOK, nil)
}
func (s *Server) deposit(w http.ResponseWriter, r *http.Request) {
var deposit dto.Deposit
if err := json.NewDecoder(r.Body).Decode(&deposit); err != nil {
s.writeErrorResponse(w, ErrBodyDecode.Wrap(err))
return
}
err := s.svc.IncreaseWalletBalance(deposit)
if err != nil {
s.writeErrorResponse(w, err)
return
}
s.writeResponse(w, http.StatusOK, nil)
}
func (s *Server) transfer(w http.ResponseWriter, r *http.Request) {
var transfer dto.Transfer
if err := json.NewDecoder(r.Body).Decode(&transfer); err != nil {
s.writeErrorResponse(w, ErrBodyDecode.Wrap(err))
return
}
err := s.svc.Transfer(transfer)
if err != nil {
s.writeErrorResponse(w, err)
return
}
s.writeResponse(w, http.StatusOK, nil)
}
func (s *Server) getOperations(w http.ResponseWriter, r *http.Request) {
filter := dto.OperationsFilter{
Wallet: r.URL.Query().Get("wallet"),
Type: r.URL.Query().Get("type"),
}
if filter.Wallet == "" {
s.writeErrorResponse(w, httperr.New(http.StatusBadRequest, "empty wallet parameter"))
return
}
if startDate := r.URL.Query().Get("start_date"); startDate != "" {
i, err := strconv.ParseInt(startDate, 10, 64)
if err != nil {
s.writeErrorResponse(w, httperr.Wrap(err, http.StatusBadRequest, "failed to parse start_date"))
return
}
filter.StartDate = i
}
if endDate := r.URL.Query().Get("end_date"); endDate != "" {
i, err := strconv.ParseInt(endDate, 10, 64)
if err != nil {
s.writeErrorResponse(w, httperr.Wrap(err, http.StatusBadRequest, "failed to parse end_date"))
return
}
filter.EndDate = i
}
if limitStr := r.URL.Query().Get("limit"); limitStr != "" {
limit, err := strconv.ParseInt(limitStr, 10, 64)
if err != nil {
s.writeErrorResponse(w, httperr.Wrap(err, http.StatusBadRequest, "failed to parse limit"))
return
}
if limit < 1 || limit > consts.OperationsLimitMax {
s.writeErrorResponse(w, httperr.Wrap(err, http.StatusBadRequest, "wrong limit, it have to be in [1, 100]"))
return
}
filter.Limit = limit
} else {
filter.Limit = consts.OperationsLimitDefault
}
if offset := r.URL.Query().Get("offset"); offset != "" {
i, err := strconv.ParseInt(offset, 10, 64)
if err != nil {
s.writeErrorResponse(w, httperr.Wrap(err, http.StatusBadRequest, "failed to parse offset"))
return
}
filter.Offset = i
}
operations, err := s.svc.GetOperations(filter)
if err != nil {
s.writeErrorResponse(w, err)
return
}
if r.URL.Query().Get("format") == "csv" {
data, err := csv.ConvertOperations(operations)
if err != nil {
s.writeErrorResponse(w, err)
return
}
s.writeResponse(w, http.StatusOK, data)
return
}
s.writeResponse(w, http.StatusOK, operations)
}