ussd/internal/handlers/server/accountservice.go

272 lines
7.9 KiB
Go

package server
import (
"context"
"encoding/json"
"errors"
"fmt"
"io"
"net/http"
"os"
"time"
"git.grassecon.net/urdt/ussd/config"
"git.grassecon.net/urdt/ussd/internal/models"
"github.com/grassrootseconomics/eth-custodial/pkg/api"
)
var (
okResponse api.OKResponse
errResponse api.ErrResponse
)
type AccountServiceInterface interface {
CheckBalance(ctx context.Context, publicKey string) (*models.BalanceResponse, error)
CreateAccount(ctx context.Context) (*api.OKResponse, error)
CheckAccountStatus(ctx context.Context, trackingId string) (*models.TrackStatusResponse, error)
TrackAccountStatus(ctx context.Context, publicKey string) (*api.OKResponse, error)
FetchVouchers(ctx context.Context, publicKey string) (*models.VoucherHoldingResponse, error)
}
type AccountService struct {
}
// Parameters:
// - trackingId: A unique identifier for the account.This should be obtained from a previous call to
// CreateAccount or a similar function that returns an AccountResponse. The `trackingId` field in the
// AccountResponse struct can be used here to check the account status during a transaction.
//
// Returns:
// - string: The status of the transaction as a string. If there is an error during the request or processing, this will be an empty string.
// - error: An error if any occurred during the HTTP request, reading the response, or unmarshalling the JSON data.
// If no error occurs, this will be nil
func (as *AccountService) CheckAccountStatus(ctx context.Context, trackingId string) (*models.TrackStatusResponse, error) {
resp, err := http.Get(config.BalanceURL + trackingId)
if err != nil {
return nil, err
}
defer resp.Body.Close()
body, err := io.ReadAll(resp.Body)
if err != nil {
return nil, err
}
var trackResp models.TrackStatusResponse
err = json.Unmarshal(body, &trackResp)
if err != nil {
return nil, err
}
return &trackResp, nil
}
func (as *AccountService) TrackAccountStatus(ctx context.Context, publicKey string) (*api.OKResponse, error) {
var err error
// Construct the URL with the path parameter
url := fmt.Sprintf("%s/%s", config.TrackURL, publicKey)
req, err := http.NewRequest("GET", url, nil)
if err != nil {
return nil, err
}
req.Header.Set("Content-Type", "application/json")
req.Header.Set("X-GE-KEY", "xd")
resp, err := http.DefaultClient.Do(req)
if err != nil {
return nil, err
}
defer resp.Body.Close()
body, err := io.ReadAll(resp.Body)
if err != nil {
errResponse.Description = err.Error()
return nil, err
}
if resp.StatusCode >= http.StatusBadRequest {
err := json.Unmarshal([]byte(body), &errResponse)
if err != nil {
return nil, err
}
return nil, errors.New(errResponse.Description)
}
err = json.Unmarshal([]byte(body), &okResponse)
if err != nil {
return nil, err
}
if len(okResponse.Result) == 0 {
return nil, errors.New("Empty api result")
}
return &okResponse, nil
}
// CheckBalance retrieves the balance for a given public key from the custodial balance API endpoint.
// Parameters:
// - publicKey: The public key associated with the account whose balance needs to be checked.
func (as *AccountService) CheckBalance(ctx context.Context, publicKey string) (*models.BalanceResponse, error) {
resp, err := http.Get(config.BalanceURL + publicKey)
if err != nil {
return nil, err
}
defer resp.Body.Close()
body, err := io.ReadAll(resp.Body)
if err != nil {
return nil, err
}
var balanceResp models.BalanceResponse
err = json.Unmarshal(body, &balanceResp)
if err != nil {
return nil, err
}
return &balanceResp, nil
}
// CreateAccount creates a new account in the custodial system.
// Returns:
// - *models.AccountResponse: A pointer to an AccountResponse struct containing the details of the created account.
// If there is an error during the request or processing, this will be nil.
// - error: An error if any occurred during the HTTP request, reading the response, or unmarshalling the JSON data.
// If no error occurs, this will be nil.
func (as *AccountService) CreateAccount(ctx context.Context) (*api.OKResponse, error) {
var err error
// Create a new request
req, err := http.NewRequest("POST", config.CreateAccountURL, nil)
if err != nil {
return nil, err
}
req.Header.Set("Content-Type", "application/json")
req.Header.Set("X-GE-KEY", "xd")
resp, err := http.DefaultClient.Do(req)
if err != nil {
errResponse.Description = err.Error()
return nil, err
}
defer resp.Body.Close()
body, err := io.ReadAll(resp.Body)
if err != nil {
return nil, err
}
if resp.StatusCode >= http.StatusBadRequest {
err := json.Unmarshal([]byte(body), &errResponse)
if err != nil {
return nil, err
}
return nil, errors.New(errResponse.Description)
}
err = json.Unmarshal([]byte(body), &okResponse)
if err != nil {
return nil, err
}
if len(okResponse.Result) == 0 {
return nil, errors.New("Empty api result")
}
return &okResponse, nil
}
// FetchVouchers retrieves the token holdings for a given public key from the custodial holdings API endpoint
// Parameters:
// - publicKey: The public key associated with the account.
func (as *AccountService) FetchVouchers(ctx context.Context, publicKey string) (*models.VoucherHoldingResponse, error) {
file, err := os.Open("sample_tokens.json")
if err != nil {
return nil, err
}
defer file.Close()
var holdings models.VoucherHoldingResponse
if err := json.NewDecoder(file).Decode(&holdings); err != nil {
return nil, err
}
return &holdings, nil
}
func (tas *TestAccountService) CreateAccount(ctx context.Context) (*api.OKResponse, error) {
return &api.OKResponse{
Ok: true,
Description: "Account creation request received successfully",
Result: map[string]any{"publicKey": "0x48ADca309b5085852207FAaf2816eD72B52F527C", "trackingId": "28ebe84d-b925-472c-87ae-bbdfa1fb97be"},
}, nil
}
func (tas *TestAccountService) CheckBalance(ctx context.Context, publicKey string) (*models.BalanceResponse, error) {
balanceResponse := &models.BalanceResponse{
Ok: true,
Result: struct {
Balance string `json:"balance"`
Nonce json.Number `json:"nonce"`
}{
Balance: "0.003 CELO",
Nonce: json.Number("0"),
},
}
return balanceResponse, nil
}
func (tas *TestAccountService) TrackAccountStatus(ctx context.Context, publicKey string) (*api.OKResponse, error) {
return &api.OKResponse{
Ok: true,
Description: "Account creation succeeded",
Result: map[string]any{
"active": true,
},
}, nil
}
func (tas *TestAccountService) CheckAccountStatus(ctx context.Context, trackingId string) (*models.TrackStatusResponse, error) {
trackResponse := &models.TrackStatusResponse{
Ok: true,
Result: struct {
Transaction struct {
CreatedAt time.Time "json:\"createdAt\""
Status string "json:\"status\""
TransferValue json.Number "json:\"transferValue\""
TxHash string "json:\"txHash\""
TxType string "json:\"txType\""
}
}{
Transaction: models.Transaction{
CreatedAt: time.Now(),
Status: "SUCCESS",
TransferValue: json.Number("0.5"),
TxHash: "0x123abc456def",
TxType: "transfer",
},
},
}
return trackResponse, nil
}
func (tas *TestAccountService) FetchVouchers(ctx context.Context, publicKey string) (*models.VoucherHoldingResponse, error) {
return &models.VoucherHoldingResponse{
Ok: true,
Result: struct {
Holdings []struct {
ContractAddress string `json:"contractAddress"`
TokenSymbol string `json:"tokenSymbol"`
TokenDecimals string `json:"tokenDecimals"`
Balance string `json:"balance"`
} `json:"holdings"`
}{
Holdings: []struct {
ContractAddress string `json:"contractAddress"`
TokenSymbol string `json:"tokenSymbol"`
TokenDecimals string `json:"tokenDecimals"`
Balance string `json:"balance"`
}{
{
ContractAddress: "0x6CC75A06ac72eB4Db2eE22F781F5D100d8ec03ee",
TokenSymbol: "SRF",
TokenDecimals: "6",
Balance: "2745987",
},
},
},
}, nil
}