Files
ezbookkeeping/pkg/api/transactions.go
T
2020-12-17 01:12:19 +08:00

296 lines
13 KiB
Go

package api
import (
"sort"
"github.com/mayswind/lab/pkg/core"
"github.com/mayswind/lab/pkg/errs"
"github.com/mayswind/lab/pkg/log"
"github.com/mayswind/lab/pkg/models"
"github.com/mayswind/lab/pkg/services"
"github.com/mayswind/lab/pkg/utils"
)
type TransactionsApi struct {
transactions *services.TransactionService
transactionTags *services.TransactionTagService
}
var (
Transactions = &TransactionsApi{
transactions: services.Transactions,
transactionTags: services.TransactionTags,
}
)
func (a *TransactionsApi) TransactionListHandler(c *core.Context) (interface{}, *errs.Error) {
var transactionListReq models.TransactionListByMaxTimeRequest
err := c.ShouldBindQuery(&transactionListReq)
if err != nil {
log.WarnfWithRequestId(c, "[transactions.TransactionListHandler] parse request failed, because %s", err.Error())
return nil, errs.NewIncompleteOrIncorrectSubmissionError(err)
}
uid := c.GetCurrentUid()
transactions, err := a.transactions.GetTransactionsByMaxTime(uid, transactionListReq.MaxTime, transactionListReq.Count + 1)
if err != nil {
log.ErrorfWithRequestId(c, "[transactions.TransactionListHandler] failed to get transactions earlier than \"%d\" for user \"uid:%d\", because %s", transactionListReq.MaxTime, uid, err.Error())
return nil, errs.ErrOperationFailed
}
finalCount := transactionListReq.Count
if len(transactions) < finalCount {
finalCount = len(transactions)
}
transactionIds := make([]int64, finalCount)
for i := 0; i < finalCount; i++ {
transactionIds[i] = transactions[i].TransactionId
}
allTransactionTagIds, err := a.transactionTags.GetAllTagIdsOfTransactions(uid, transactionIds)
if err != nil {
log.ErrorfWithRequestId(c, "[transactions.TransactionListHandler] failed to get transactions tag ids for user \"uid:%d\", because %s", uid, err.Error())
return nil, errs.ErrOperationFailed
}
transactionResps := &models.TransactionInfoPageWrapperResponse{}
transactionResps.Items = make(models.TransactionInfoResponseSlice, finalCount)
for i := 0; i < finalCount; i++ {
transactionTagIds := allTransactionTagIds[transactions[i].TransactionId]
transactionResps.Items[i] = transactions[i].ToTransactionInfoResponse(transactionTagIds)
}
sort.Sort(transactionResps.Items)
if finalCount < len(transactions) {
transactionResps.NextTimeSequenceId = &transactions[finalCount].TransactionTime
}
return transactionResps, nil
}
func (a *TransactionsApi) TransactionMonthListHandler(c *core.Context) (interface{}, *errs.Error) {
var transactionListReq models.TransactionListInMonthByPageRequest
err := c.ShouldBindQuery(&transactionListReq)
if err != nil {
log.WarnfWithRequestId(c, "[transactions.TransactionMonthListHandler] parse request failed, because %s", err.Error())
return nil, errs.NewIncompleteOrIncorrectSubmissionError(err)
}
uid := c.GetCurrentUid()
transactions, err := a.transactions.GetTransactionsInMonthByPage(uid, transactionListReq.Year, transactionListReq.Month, transactionListReq.Page, transactionListReq.Count)
if err != nil {
log.ErrorfWithRequestId(c, "[transactions.TransactionMonthListHandler] failed to get transactions in month \"%d-%d\" for user \"uid:%d\", because %s", transactionListReq.Year, transactionListReq.Month, uid, err.Error())
return nil, errs.ErrOperationFailed
}
transactionIds := make([]int64, len(transactions))
for i := 0; i < len(transactions); i++ {
transactionIds[i] = transactions[i].TransactionId
}
allTransactionTagIds, err := a.transactionTags.GetAllTagIdsOfTransactions(uid, transactionIds)
if err != nil {
log.ErrorfWithRequestId(c, "[transactions.TransactionMonthListHandler] failed to get transactions tag ids for user \"uid:%d\", because %s", uid, err.Error())
return nil, errs.ErrOperationFailed
}
transactionResps := make([]*models.TransactionInfoResponse, len(transactions))
for i := 0; i < len(transactions); i++ {
transactionTagIds := allTransactionTagIds[transactions[i].TransactionId]
transactionResps[i] = transactions[i].ToTransactionInfoResponse(transactionTagIds)
}
return transactionResps, nil
}
func (a *TransactionsApi) TransactionGetHandler(c *core.Context) (interface{}, *errs.Error) {
var transactionGetReq models.TransactionGetRequest
err := c.ShouldBindQuery(&transactionGetReq)
if err != nil {
log.WarnfWithRequestId(c, "[transactions.TransactionGetHandler] parse request failed, because %s", err.Error())
return nil, errs.NewIncompleteOrIncorrectSubmissionError(err)
}
uid := c.GetCurrentUid()
transaction, err := a.transactions.GetTransactionByTransactionId(uid, transactionGetReq.Id)
if err != nil {
log.ErrorfWithRequestId(c, "[transactions.TransactionGetHandler] failed to get transaction \"id:%d\" for user \"uid:%d\", because %s", transactionGetReq.Id, uid, err.Error())
return nil, errs.ErrOperationFailed
}
allTransactionTagIds, err := a.transactionTags.GetAllTagIdsOfTransactions(uid, []int64{transaction.TransactionId})
if err != nil {
log.ErrorfWithRequestId(c, "[transactions.TransactionGetHandler] failed to get transactions tag ids for user \"uid:%d\", because %s", uid, err.Error())
return nil, errs.ErrOperationFailed
}
transactionTagIds := allTransactionTagIds[transaction.TransactionId]
transactionResp := transaction.ToTransactionInfoResponse(transactionTagIds)
return transactionResp, nil
}
func (a *TransactionsApi) TransactionCreateHandler(c *core.Context) (interface{}, *errs.Error) {
var transactionCreateReq models.TransactionCreateRequest
err := c.ShouldBindJSON(&transactionCreateReq)
if err != nil {
log.WarnfWithRequestId(c, "[transactions.TransactionCreateHandler] parse request failed, because %s", err.Error())
return nil, errs.NewIncompleteOrIncorrectSubmissionError(err)
}
if transactionCreateReq.Type < models.TRANSACTION_TYPE_MODIFY_BALANCE || transactionCreateReq.Type > models.TRANSACTION_TYPE_TRANSFER {
log.WarnfWithRequestId(c, "[transactions.TransactionCreateHandler] transaction type is invalid")
return nil, errs.ErrTransactionTypeInvalid
}
if transactionCreateReq.Type == models.TRANSACTION_TYPE_MODIFY_BALANCE && transactionCreateReq.CategoryId > 0 {
log.WarnfWithRequestId(c, "[transactions.TransactionCreateHandler] balance modification transaction cannot set category id")
return nil, errs.ErrBalanceModificationTransactionCannotSetCategory
}
if transactionCreateReq.Type != models.TRANSACTION_TYPE_TRANSFER && transactionCreateReq.SourceAccountId != transactionCreateReq.DestinationAccountId {
log.WarnfWithRequestId(c, "[transactions.TransactionCreateHandler] non-transfer transaction source account is not destination account")
return nil, errs.ErrTransactionSourceAndDestinationIdNotEqual
} else if transactionCreateReq.Type == models.TRANSACTION_TYPE_TRANSFER && transactionCreateReq.SourceAccountId == transactionCreateReq.DestinationAccountId {
log.WarnfWithRequestId(c, "[transactions.TransactionCreateHandler] transfer transaction source account must not be destination account")
return nil, errs.ErrTransactionSourceAndDestinationIdCannotBeEqual
}
if transactionCreateReq.Type != models.TRANSACTION_TYPE_TRANSFER && transactionCreateReq.SourceAmount != transactionCreateReq.DestinationAmount {
log.WarnfWithRequestId(c, "[transactions.TransactionCreateHandler] non-transfer transaction source amount is not destination amount")
return nil, errs.ErrTransactionSourceAndDestinationAmountNotEqual
}
uid := c.GetCurrentUid()
transaction := a.createNewTransactionModel(uid, &transactionCreateReq)
err = a.transactions.CreateTransaction(transaction, transactionCreateReq.TagIds)
if err != nil {
log.ErrorfWithRequestId(c, "[transactions.TransactionCreateHandler] failed to create transaction \"id:%d\" for user \"uid:%d\", because %s", transaction.TransactionId, uid, err.Error())
return nil, errs.Or(err, errs.ErrOperationFailed)
}
log.InfofWithRequestId(c, "[transactions.TransactionCreateHandler] user \"uid:%d\" has created a new transaction \"id:%d\" successfully", uid, transaction.TransactionId)
transactionResp := transaction.ToTransactionInfoResponse(nil)
return transactionResp, nil
}
func (a *TransactionsApi) TransactionModifyHandler(c *core.Context) (interface{}, *errs.Error) {
var transactionModifyReq models.TransactionModifyRequest
err := c.ShouldBindJSON(&transactionModifyReq)
if err != nil {
log.WarnfWithRequestId(c, "[transactions.TransactionModifyHandler] parse request failed, because %s", err.Error())
return nil, errs.NewIncompleteOrIncorrectSubmissionError(err)
}
uid := c.GetCurrentUid()
transaction, err := a.transactions.GetTransactionByTransactionId(uid, transactionModifyReq.Id)
if err != nil {
log.ErrorfWithRequestId(c, "[transactions.TransactionModifyHandler] failed to get transaction \"id:%d\" for user \"uid:%d\", because %s", transactionModifyReq.Id, uid, err.Error())
return nil, errs.Or(err, errs.ErrOperationFailed)
}
allTransactionTagIds, err := a.transactionTags.GetAllTagIdsOfTransactions(uid, []int64{transaction.TransactionId})
if err != nil {
log.ErrorfWithRequestId(c, "[transactions.TransactionModifyHandler] failed to get transactions tag ids for user \"uid:%d\", because %s", uid, err.Error())
return nil, errs.ErrOperationFailed
}
transactionTagIds := allTransactionTagIds[transaction.TransactionId]
addTransactionTagIds := utils.Int64SliceMinus(transactionModifyReq.TagIds, transactionTagIds)
removeTransactionTagIds := utils.Int64SliceMinus(transactionTagIds, transactionModifyReq.TagIds)
newTransaction := &models.Transaction{
TransactionId: transaction.TransactionId,
Uid: uid,
CategoryId: transactionModifyReq.CategoryId,
TransactionTime: transactionModifyReq.Time,
SourceAccountId: transactionModifyReq.SourceAccountId,
DestinationAccountId: transactionModifyReq.DestinationAccountId,
SourceAmount: transactionModifyReq.SourceAmount,
DestinationAmount: transactionModifyReq.DestinationAmount,
Comment: transactionModifyReq.Comment,
}
if newTransaction.CategoryId == transaction.CategoryId &&
newTransaction.TransactionTime / 1000 == transaction.TransactionTime / 1000 &&
newTransaction.SourceAccountId == transaction.SourceAccountId &&
newTransaction.DestinationAccountId == transaction.DestinationAccountId &&
newTransaction.SourceAmount == transaction.SourceAmount &&
newTransaction.DestinationAmount == transaction.DestinationAmount &&
newTransaction.Comment == transaction.Comment &&
len(addTransactionTagIds) < 1 &&
len(removeTransactionTagIds) < 1 {
return nil, errs.ErrNothingWillBeUpdated
}
err = a.transactions.ModifyTransaction(newTransaction, addTransactionTagIds, removeTransactionTagIds)
if err != nil {
log.ErrorfWithRequestId(c, "[transactions.TransactionModifyHandler] failed to update transaction \"id:%d\" for user \"uid:%d\", because %s", transactionModifyReq.Id, uid, err.Error())
return nil, errs.Or(err, errs.ErrOperationFailed)
}
log.InfofWithRequestId(c, "[transactions.TransactionModifyHandler] user \"uid:%d\" has updated transaction \"id:%d\" successfully", uid, transactionModifyReq.Id)
return true, nil
}
func (a *TransactionsApi) TransactionDeleteHandler(c *core.Context) (interface{}, *errs.Error) {
var transactionDeleteReq models.TransactionDeleteRequest
err := c.ShouldBindJSON(&transactionDeleteReq)
if err != nil {
log.WarnfWithRequestId(c, "[transactions.TransactionDeleteHandler] parse request failed, because %s", err.Error())
return nil, errs.NewIncompleteOrIncorrectSubmissionError(err)
}
uid := c.GetCurrentUid()
err = a.transactions.DeleteTransaction(uid, transactionDeleteReq.Id)
if err != nil {
log.ErrorfWithRequestId(c, "[transactions.TransactionDeleteHandler] failed to delete transaction \"id:%d\" for user \"uid:%d\", because %s", transactionDeleteReq.Id, uid, err.Error())
return nil, errs.Or(err, errs.ErrOperationFailed)
}
log.InfofWithRequestId(c, "[transactions.TransactionDeleteHandler] user \"uid:%d\" has deleted transaction \"id:%d\"", uid, transactionDeleteReq.Id)
return true, nil
}
func (a *TransactionsApi) createNewTransactionModel(uid int64, transactionCreateReq *models.TransactionCreateRequest) *models.Transaction {
return &models.Transaction{
Uid: uid,
Type: transactionCreateReq.Type,
CategoryId: transactionCreateReq.CategoryId,
TransactionTime: utils.GetMinTransactionTimeFromUnixTime(transactionCreateReq.Time),
SourceAccountId: transactionCreateReq.SourceAccountId,
DestinationAccountId: transactionCreateReq.DestinationAccountId,
SourceAmount: transactionCreateReq.SourceAmount,
DestinationAmount: transactionCreateReq.DestinationAmount,
Comment: transactionCreateReq.Comment,
}
}