MaysWind
380 lines
16 KiB
Go
380 lines
16 KiB
Go
package api
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import (
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"sort"
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"github.com/mayswind/lab/pkg/core"
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"github.com/mayswind/lab/pkg/errs"
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"github.com/mayswind/lab/pkg/log"
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"github.com/mayswind/lab/pkg/models"
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"github.com/mayswind/lab/pkg/services"
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"github.com/mayswind/lab/pkg/utils"
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)
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// TransactionsApi represents transaction api
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type TransactionsApi struct {
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transactions *services.TransactionService
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transactionTags *services.TransactionTagService
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}
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// Initialize a transaction api singleton instance
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var (
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Transactions = &TransactionsApi{
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transactions: services.Transactions,
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transactionTags: services.TransactionTags,
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}
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)
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// TransactionListHandler returns transaction list of current user
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func (a *TransactionsApi) TransactionListHandler(c *core.Context) (interface{}, *errs.Error) {
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var transactionListReq models.TransactionListByMaxTimeRequest
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err := c.ShouldBindQuery(&transactionListReq)
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if err != nil {
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log.WarnfWithRequestId(c, "[transactions.TransactionListHandler] parse request failed, because %s", err.Error())
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return nil, errs.NewIncompleteOrIncorrectSubmissionError(err)
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}
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uid := c.GetCurrentUid()
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transactions, err := a.transactions.GetTransactionsByMaxTime(uid, transactionListReq.MaxTime, transactionListReq.MinTime, transactionListReq.Type, transactionListReq.CategoryId, transactionListReq.AccountId, transactionListReq.Keyword, transactionListReq.Count+1, true)
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if err != nil {
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log.ErrorfWithRequestId(c, "[transactions.TransactionListHandler] failed to get transactions earlier than \"%d\" for user \"uid:%d\", because %s", transactionListReq.MaxTime, uid, err.Error())
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return nil, errs.ErrOperationFailed
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}
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finalCount := transactionListReq.Count
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if len(transactions) < finalCount {
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finalCount = len(transactions)
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}
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hasMore := false
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if finalCount < len(transactions) {
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hasMore = true
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}
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transactionIds := make([]int64, finalCount)
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for i := 0; i < finalCount; i++ {
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transactionId := transactions[i].TransactionId
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if transactions[i].Type == models.TRANSACTION_DB_TYPE_TRANSFER_IN {
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transactionId = transactions[i].RelatedId
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}
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transactionIds[i] = transactionId
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}
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allTransactionTagIds, err := a.transactionTags.GetAllTagIdsOfTransactions(uid, transactionIds)
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if err != nil {
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log.ErrorfWithRequestId(c, "[transactions.TransactionListHandler] failed to get transactions tag ids for user \"uid:%d\", because %s", uid, err.Error())
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return nil, errs.ErrOperationFailed
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}
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transactionResps := &models.TransactionInfoPageWrapperResponse{}
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transactionResps.Items = make(models.TransactionInfoResponseSlice, finalCount)
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for i := 0; i < finalCount; i++ {
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transaction := transactions[i]
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if transaction.Type == models.TRANSACTION_DB_TYPE_TRANSFER_IN {
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transaction = a.transactions.GetRelatedTransferTransaction(transaction, transaction.RelatedId)
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}
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transactionTagIds := allTransactionTagIds[transaction.TransactionId]
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transactionResps.Items[i] = transaction.ToTransactionInfoResponse(transactionTagIds)
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}
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sort.Sort(transactionResps.Items)
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if hasMore {
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transactionResps.NextTimeSequenceId = &transactions[finalCount].TransactionTime
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}
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return transactionResps, nil
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}
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// TransactionMonthListHandler returns transaction list of current user by month
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func (a *TransactionsApi) TransactionMonthListHandler(c *core.Context) (interface{}, *errs.Error) {
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var transactionListReq models.TransactionListInMonthByPageRequest
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err := c.ShouldBindQuery(&transactionListReq)
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if err != nil {
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log.WarnfWithRequestId(c, "[transactions.TransactionMonthListHandler] parse request failed, because %s", err.Error())
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return nil, errs.NewIncompleteOrIncorrectSubmissionError(err)
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}
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uid := c.GetCurrentUid()
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transactions, err := a.transactions.GetTransactionsInMonthByPage(uid, transactionListReq.Year, transactionListReq.Month, transactionListReq.Type, transactionListReq.CategoryId, transactionListReq.AccountId, transactionListReq.Keyword, transactionListReq.Page, transactionListReq.Count)
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if err != nil {
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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())
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return nil, errs.ErrOperationFailed
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}
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transactionIds := make([]int64, len(transactions))
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for i := 0; i < len(transactions); i++ {
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transactionId := transactions[i].TransactionId
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if transactions[i].Type == models.TRANSACTION_DB_TYPE_TRANSFER_IN {
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transactionId = transactions[i].RelatedId
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}
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transactionIds[i] = transactionId
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}
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allTransactionTagIds, err := a.transactionTags.GetAllTagIdsOfTransactions(uid, transactionIds)
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if err != nil {
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log.ErrorfWithRequestId(c, "[transactions.TransactionMonthListHandler] failed to get transactions tag ids for user \"uid:%d\", because %s", uid, err.Error())
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return nil, errs.ErrOperationFailed
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}
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transactionResps := make([]*models.TransactionInfoResponse, len(transactions))
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for i := 0; i < len(transactions); i++ {
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transaction := transactions[i]
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if transaction.Type == models.TRANSACTION_DB_TYPE_TRANSFER_IN {
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transaction = a.transactions.GetRelatedTransferTransaction(transaction, transaction.RelatedId)
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}
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transactionTagIds := allTransactionTagIds[transaction.TransactionId]
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transactionResps[i] = transaction.ToTransactionInfoResponse(transactionTagIds)
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}
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return transactionResps, nil
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}
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// TransactionGetHandler returns one specific transaction of current user
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func (a *TransactionsApi) TransactionGetHandler(c *core.Context) (interface{}, *errs.Error) {
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var transactionGetReq models.TransactionGetRequest
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err := c.ShouldBindQuery(&transactionGetReq)
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if err != nil {
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log.WarnfWithRequestId(c, "[transactions.TransactionGetHandler] parse request failed, because %s", err.Error())
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return nil, errs.NewIncompleteOrIncorrectSubmissionError(err)
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}
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uid := c.GetCurrentUid()
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transaction, err := a.transactions.GetTransactionByTransactionId(uid, transactionGetReq.Id)
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if err != nil {
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log.ErrorfWithRequestId(c, "[transactions.TransactionGetHandler] failed to get transaction \"id:%d\" for user \"uid:%d\", because %s", transactionGetReq.Id, uid, err.Error())
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return nil, errs.ErrOperationFailed
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}
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if transaction.Type == models.TRANSACTION_DB_TYPE_TRANSFER_IN {
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transaction = a.transactions.GetRelatedTransferTransaction(transaction, transaction.RelatedId)
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}
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allTransactionTagIds, err := a.transactionTags.GetAllTagIdsOfTransactions(uid, []int64{transaction.TransactionId})
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if err != nil {
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log.ErrorfWithRequestId(c, "[transactions.TransactionGetHandler] failed to get transactions tag ids for user \"uid:%d\", because %s", uid, err.Error())
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return nil, errs.ErrOperationFailed
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}
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transactionTagIds := allTransactionTagIds[transaction.TransactionId]
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transactionResp := transaction.ToTransactionInfoResponse(transactionTagIds)
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return transactionResp, nil
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}
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// TransactionCreateHandler saves a new transaction by request parameters for current user
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func (a *TransactionsApi) TransactionCreateHandler(c *core.Context) (interface{}, *errs.Error) {
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var transactionCreateReq models.TransactionCreateRequest
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err := c.ShouldBindJSON(&transactionCreateReq)
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if err != nil {
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log.WarnfWithRequestId(c, "[transactions.TransactionCreateHandler] parse request failed, because %s", err.Error())
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return nil, errs.NewIncompleteOrIncorrectSubmissionError(err)
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}
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tagIds, err := utils.StringArrayToInt64Array(transactionCreateReq.TagIds)
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if err != nil {
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log.WarnfWithRequestId(c, "[transactions.TransactionCreateHandler] parse tag ids failed, because %s", err.Error())
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return nil, errs.ErrTransactionTagIdInvalid
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}
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if transactionCreateReq.Type < models.TRANSACTION_TYPE_MODIFY_BALANCE || transactionCreateReq.Type > models.TRANSACTION_TYPE_TRANSFER {
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log.WarnfWithRequestId(c, "[transactions.TransactionCreateHandler] transaction type is invalid")
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return nil, errs.ErrTransactionTypeInvalid
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}
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if transactionCreateReq.Type == models.TRANSACTION_TYPE_MODIFY_BALANCE && transactionCreateReq.CategoryId > 0 {
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log.WarnfWithRequestId(c, "[transactions.TransactionCreateHandler] balance modification transaction cannot set category id")
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return nil, errs.ErrBalanceModificationTransactionCannotSetCategory
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}
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if transactionCreateReq.Type != models.TRANSACTION_TYPE_TRANSFER && transactionCreateReq.DestinationAccountId != 0 {
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log.WarnfWithRequestId(c, "[transactions.TransactionCreateHandler] non-transfer transaction destination account cannot be set")
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return nil, errs.ErrTransactionDestinationAccountCannotBeSet
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} else if transactionCreateReq.Type == models.TRANSACTION_TYPE_TRANSFER && transactionCreateReq.SourceAccountId == transactionCreateReq.DestinationAccountId {
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log.WarnfWithRequestId(c, "[transactions.TransactionCreateHandler] transfer transaction source account must not be destination account")
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return nil, errs.ErrTransactionSourceAndDestinationIdCannotBeEqual
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}
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if transactionCreateReq.Type != models.TRANSACTION_TYPE_TRANSFER && transactionCreateReq.DestinationAmount != 0 {
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log.WarnfWithRequestId(c, "[transactions.TransactionCreateHandler] non-transfer transaction destination amount cannot be set")
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return nil, errs.ErrTransactionDestinationAmountCannotBeSet
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}
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uid := c.GetCurrentUid()
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transaction := a.createNewTransactionModel(uid, &transactionCreateReq)
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err = a.transactions.CreateTransaction(transaction, tagIds)
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if err != nil {
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log.ErrorfWithRequestId(c, "[transactions.TransactionCreateHandler] failed to create transaction \"id:%d\" for user \"uid:%d\", because %s", transaction.TransactionId, uid, err.Error())
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return nil, errs.Or(err, errs.ErrOperationFailed)
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}
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log.InfofWithRequestId(c, "[transactions.TransactionCreateHandler] user \"uid:%d\" has created a new transaction \"id:%d\" successfully", uid, transaction.TransactionId)
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transactionResp := transaction.ToTransactionInfoResponse(nil)
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return transactionResp, nil
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}
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// TransactionModifyHandler saves an existed transaction by request parameters for current user
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func (a *TransactionsApi) TransactionModifyHandler(c *core.Context) (interface{}, *errs.Error) {
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var transactionModifyReq models.TransactionModifyRequest
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err := c.ShouldBindJSON(&transactionModifyReq)
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if err != nil {
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log.WarnfWithRequestId(c, "[transactions.TransactionModifyHandler] parse request failed, because %s", err.Error())
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return nil, errs.NewIncompleteOrIncorrectSubmissionError(err)
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}
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tagIds, err := utils.StringArrayToInt64Array(transactionModifyReq.TagIds)
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if err != nil {
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log.WarnfWithRequestId(c, "[transactions.TransactionModifyHandler] parse tag ids failed, because %s", err.Error())
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return nil, errs.ErrTransactionTagIdInvalid
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}
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uid := c.GetCurrentUid()
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transaction, err := a.transactions.GetTransactionByTransactionId(uid, transactionModifyReq.Id)
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if err != nil {
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log.ErrorfWithRequestId(c, "[transactions.TransactionModifyHandler] failed to get transaction \"id:%d\" for user \"uid:%d\", because %s", transactionModifyReq.Id, uid, err.Error())
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return nil, errs.Or(err, errs.ErrOperationFailed)
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}
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if transaction.Type == models.TRANSACTION_DB_TYPE_TRANSFER_IN {
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log.WarnfWithRequestId(c, "[transactions.TransactionModifyHandler] cannot modify transaction \"id:%d\" for user \"uid:%d\", because transaction type is transfer in", transactionModifyReq.Id, uid)
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return nil, errs.ErrTransactionTypeInvalid
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}
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allTransactionTagIds, err := a.transactionTags.GetAllTagIdsOfTransactions(uid, []int64{transaction.TransactionId})
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if err != nil {
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log.ErrorfWithRequestId(c, "[transactions.TransactionModifyHandler] failed to get transactions tag ids for user \"uid:%d\", because %s", uid, err.Error())
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return nil, errs.ErrOperationFailed
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}
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transactionTagIds := allTransactionTagIds[transaction.TransactionId]
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addTransactionTagIds := utils.Int64SliceMinus(tagIds, transactionTagIds)
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removeTransactionTagIds := utils.Int64SliceMinus(transactionTagIds, tagIds)
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newTransaction := &models.Transaction{
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TransactionId: transaction.TransactionId,
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Uid: uid,
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CategoryId: transactionModifyReq.CategoryId,
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TransactionTime: utils.GetMinTransactionTimeFromUnixTime(transactionModifyReq.Time),
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AccountId: transactionModifyReq.SourceAccountId,
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Amount: transactionModifyReq.SourceAmount,
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Comment: transactionModifyReq.Comment,
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}
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if transaction.Type == models.TRANSACTION_DB_TYPE_TRANSFER_OUT {
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newTransaction.RelatedAccountId = transactionModifyReq.DestinationAccountId
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newTransaction.RelatedAccountAmount = transactionModifyReq.DestinationAmount
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}
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if newTransaction.CategoryId == transaction.CategoryId &&
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utils.GetUnixTimeFromTransactionTime(newTransaction.TransactionTime) == utils.GetUnixTimeFromTransactionTime(transaction.TransactionTime) &&
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newTransaction.AccountId == transaction.AccountId &&
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newTransaction.Amount == transaction.Amount &&
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(transaction.Type != models.TRANSACTION_DB_TYPE_TRANSFER_OUT || newTransaction.RelatedAccountId == transaction.RelatedAccountId) &&
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(transaction.Type != models.TRANSACTION_DB_TYPE_TRANSFER_OUT || newTransaction.RelatedAccountAmount == transaction.RelatedAccountAmount) &&
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newTransaction.Comment == transaction.Comment &&
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len(addTransactionTagIds) < 1 &&
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len(removeTransactionTagIds) < 1 {
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return nil, errs.ErrNothingWillBeUpdated
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}
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err = a.transactions.ModifyTransaction(newTransaction, addTransactionTagIds, removeTransactionTagIds)
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if err != nil {
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log.ErrorfWithRequestId(c, "[transactions.TransactionModifyHandler] failed to update transaction \"id:%d\" for user \"uid:%d\", because %s", transactionModifyReq.Id, uid, err.Error())
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return nil, errs.Or(err, errs.ErrOperationFailed)
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}
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log.InfofWithRequestId(c, "[transactions.TransactionModifyHandler] user \"uid:%d\" has updated transaction \"id:%d\" successfully", uid, transactionModifyReq.Id)
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newTransaction.Type = transaction.Type
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newTransactionResp := newTransaction.ToTransactionInfoResponse(tagIds)
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return newTransactionResp, nil
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}
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// TransactionDeleteHandler deletes an existed transaction by request parameters for current user
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func (a *TransactionsApi) TransactionDeleteHandler(c *core.Context) (interface{}, *errs.Error) {
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var transactionDeleteReq models.TransactionDeleteRequest
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err := c.ShouldBindJSON(&transactionDeleteReq)
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if err != nil {
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log.WarnfWithRequestId(c, "[transactions.TransactionDeleteHandler] parse request failed, because %s", err.Error())
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return nil, errs.NewIncompleteOrIncorrectSubmissionError(err)
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}
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uid := c.GetCurrentUid()
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err = a.transactions.DeleteTransaction(uid, transactionDeleteReq.Id)
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if err != nil {
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log.ErrorfWithRequestId(c, "[transactions.TransactionDeleteHandler] failed to delete transaction \"id:%d\" for user \"uid:%d\", because %s", transactionDeleteReq.Id, uid, err.Error())
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return nil, errs.Or(err, errs.ErrOperationFailed)
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}
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log.InfofWithRequestId(c, "[transactions.TransactionDeleteHandler] user \"uid:%d\" has deleted transaction \"id:%d\"", uid, transactionDeleteReq.Id)
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return true, nil
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}
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func (a *TransactionsApi) createNewTransactionModel(uid int64, transactionCreateReq *models.TransactionCreateRequest) *models.Transaction {
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var transactionDbType models.TransactionDbType
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if transactionCreateReq.Type == models.TRANSACTION_TYPE_MODIFY_BALANCE {
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transactionDbType = models.TRANSACTION_DB_TYPE_MODIFY_BALANCE
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} else if transactionCreateReq.Type == models.TRANSACTION_TYPE_EXPENSE {
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transactionDbType = models.TRANSACTION_DB_TYPE_EXPENSE
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} else if transactionCreateReq.Type == models.TRANSACTION_TYPE_INCOME {
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transactionDbType = models.TRANSACTION_DB_TYPE_INCOME
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} else if transactionCreateReq.Type == models.TRANSACTION_TYPE_TRANSFER {
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transactionDbType = models.TRANSACTION_DB_TYPE_TRANSFER_OUT
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}
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transaction := &models.Transaction{
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Uid: uid,
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Type: transactionDbType,
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CategoryId: transactionCreateReq.CategoryId,
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TransactionTime: utils.GetMinTransactionTimeFromUnixTime(transactionCreateReq.Time),
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AccountId: transactionCreateReq.SourceAccountId,
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Amount: transactionCreateReq.SourceAmount,
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Comment: transactionCreateReq.Comment,
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}
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if transactionCreateReq.Type == models.TRANSACTION_TYPE_TRANSFER {
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transaction.RelatedAccountId = transactionCreateReq.DestinationAccountId
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transaction.RelatedAccountAmount = transactionCreateReq.DestinationAmount
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}
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return transaction
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}
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