feat: extract into remaining packages
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There has been a cyclic dependency. transaction -> treasure_chest -> transaction_recurring -> transaction This has been temporarily solved by moving the GenerateTransactions function into the transaction package. In the future, this function has to be rewritten to use a proper Service insteas of direct DB access or replaced with a different system entirely.
This commit is contained in:
301
internal/transaction/handler.go
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301
internal/transaction/handler.go
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@@ -0,0 +1,301 @@
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package transaction
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import (
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"fmt"
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"math"
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"net/http"
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"spend-sparrow/internal/account"
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"spend-sparrow/internal/core"
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"spend-sparrow/internal/treasure_chest"
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"spend-sparrow/internal/treasure_chest_types"
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"strconv"
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"time"
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"github.com/a-h/templ"
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"github.com/google/uuid"
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)
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const (
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DECIMALS_MULTIPLIER = 100
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)
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type Handler interface {
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Handle(router *http.ServeMux)
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}
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type HandlerImpl struct {
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s Service
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account account.Service
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treasureChest treasure_chest.Service
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r *core.Render
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}
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func NewHandler(s Service, account account.Service, treasureChest treasure_chest.Service, r *core.Render) Handler {
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return HandlerImpl{
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s: s,
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account: account,
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treasureChest: treasureChest,
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r: r,
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}
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}
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func (h HandlerImpl) Handle(r *http.ServeMux) {
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r.Handle("GET /transaction", h.handleTransactionPage())
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r.Handle("GET /transaction/{id}", h.handleTransactionItemComp())
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r.Handle("POST /transaction/{id}", h.handleUpdateTransaction())
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r.Handle("POST /transaction/recalculate", h.handleRecalculate())
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r.Handle("DELETE /transaction/{id}", h.handleDeleteTransaction())
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}
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func (h HandlerImpl) handleTransactionPage() http.HandlerFunc {
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return func(w http.ResponseWriter, r *http.Request) {
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core.UpdateSpan(r)
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user := core.GetUser(r)
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if user == nil {
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core.DoRedirect(w, r, "/auth/signin")
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return
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}
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filter := TransactionItemsFilter{
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AccountId: r.URL.Query().Get("account-id"),
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TreasureChestId: r.URL.Query().Get("treasure-chest-id"),
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Error: r.URL.Query().Get("error"),
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Page: r.URL.Query().Get("page"),
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}
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transactions, err := h.s.GetAll(r.Context(), user, filter)
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if err != nil {
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core.HandleError(w, r, err)
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return
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}
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accounts, err := h.account.GetAll(r.Context(), user)
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if err != nil {
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core.HandleError(w, r, err)
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return
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}
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treasureChests, err := h.treasureChest.GetAll(r.Context(), user)
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if err != nil {
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core.HandleError(w, r, err)
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return
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}
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accountMap, treasureChestMap := h.getTransactionData(accounts, treasureChests)
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items := TransactionItems(transactions, accountMap, treasureChestMap)
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if core.IsHtmx(r) {
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h.r.Render(r, w, items)
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} else {
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comp := TransactionComp(items, filter, accounts, treasureChests)
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h.r.RenderLayout(r, w, comp, user)
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}
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}
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}
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func (h HandlerImpl) handleTransactionItemComp() http.HandlerFunc {
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return func(w http.ResponseWriter, r *http.Request) {
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core.UpdateSpan(r)
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user := core.GetUser(r)
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if user == nil {
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core.DoRedirect(w, r, "/auth/signin")
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return
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}
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accounts, err := h.account.GetAll(r.Context(), user)
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if err != nil {
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core.HandleError(w, r, err)
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return
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}
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treasureChests, err := h.treasureChest.GetAll(r.Context(), user)
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if err != nil {
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core.HandleError(w, r, err)
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return
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}
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id := r.PathValue("id")
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if id == "new" {
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comp := EditTransaction(nil, accounts, treasureChests)
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h.r.Render(r, w, comp)
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return
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}
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transaction, err := h.s.Get(r.Context(), user, id)
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if err != nil {
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core.HandleError(w, r, err)
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return
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}
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var comp templ.Component
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if r.URL.Query().Get("edit") == "true" {
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comp = EditTransaction(transaction, accounts, treasureChests)
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} else {
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accountMap, treasureChestMap := h.getTransactionData(accounts, treasureChests)
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comp = TransactionItem(transaction, accountMap, treasureChestMap)
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}
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h.r.Render(r, w, comp)
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}
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}
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func (h HandlerImpl) handleUpdateTransaction() http.HandlerFunc {
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return func(w http.ResponseWriter, r *http.Request) {
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core.UpdateSpan(r)
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user := core.GetUser(r)
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if user == nil {
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core.DoRedirect(w, r, "/auth/signin")
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return
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}
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var (
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id uuid.UUID
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err error
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)
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idStr := r.PathValue("id")
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if idStr != "new" {
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id, err = uuid.Parse(idStr)
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if err != nil {
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core.HandleError(w, r, fmt.Errorf("could not parse Id: %w", core.ErrBadRequest))
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return
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}
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}
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accountIdStr := r.FormValue("account-id")
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var accountId *uuid.UUID
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if accountIdStr != "" {
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i, err := uuid.Parse(accountIdStr)
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if err != nil {
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core.HandleError(w, r, fmt.Errorf("could not parse account id: %w", core.ErrBadRequest))
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return
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}
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accountId = &i
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}
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treasureChestIdStr := r.FormValue("treasure-chest-id")
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var treasureChestId *uuid.UUID
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if treasureChestIdStr != "" {
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i, err := uuid.Parse(treasureChestIdStr)
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if err != nil {
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core.HandleError(w, r, fmt.Errorf("could not parse treasure chest id: %w", core.ErrBadRequest))
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return
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}
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treasureChestId = &i
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}
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valueF, err := strconv.ParseFloat(r.FormValue("value"), 64)
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if err != nil {
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core.HandleError(w, r, fmt.Errorf("could not parse value: %w", core.ErrBadRequest))
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return
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}
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value := int64(math.Round(valueF * DECIMALS_MULTIPLIER))
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timestamp, err := time.Parse("2006-01-02", r.FormValue("timestamp"))
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if err != nil {
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core.HandleError(w, r, fmt.Errorf("could not parse timestamp: %w", core.ErrBadRequest))
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return
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}
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input := Transaction{
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Id: id,
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AccountId: accountId,
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TreasureChestId: treasureChestId,
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Value: value,
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Timestamp: timestamp,
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Party: r.FormValue("party"),
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Description: r.FormValue("description"),
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}
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var transaction *Transaction
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if idStr == "new" {
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transaction, err = h.s.Add(r.Context(), nil, user, input)
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if err != nil {
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core.HandleError(w, r, err)
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return
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}
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} else {
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transaction, err = h.s.Update(r.Context(), user, input)
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if err != nil {
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core.HandleError(w, r, err)
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return
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}
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}
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accounts, err := h.account.GetAll(r.Context(), user)
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if err != nil {
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core.HandleError(w, r, err)
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return
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}
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treasureChests, err := h.treasureChest.GetAll(r.Context(), user)
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if err != nil {
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core.HandleError(w, r, err)
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return
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}
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accountMap, treasureChestMap := h.getTransactionData(accounts, treasureChests)
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comp := TransactionItem(transaction, accountMap, treasureChestMap)
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h.r.Render(r, w, comp)
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}
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}
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func (h HandlerImpl) handleRecalculate() http.HandlerFunc {
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return func(w http.ResponseWriter, r *http.Request) {
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core.UpdateSpan(r)
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user := core.GetUser(r)
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if user == nil {
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core.DoRedirect(w, r, "/auth/signin")
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return
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}
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err := h.s.RecalculateBalances(r.Context(), user)
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if err != nil {
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core.HandleError(w, r, err)
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return
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}
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core.TriggerToastWithStatus(r.Context(), w, r, "success", "Balances recalculated, please refresh", http.StatusOK)
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}
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}
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func (h HandlerImpl) handleDeleteTransaction() http.HandlerFunc {
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return func(w http.ResponseWriter, r *http.Request) {
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core.UpdateSpan(r)
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user := core.GetUser(r)
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if user == nil {
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core.DoRedirect(w, r, "/auth/signin")
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return
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}
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id := r.PathValue("id")
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err := h.s.Delete(r.Context(), user, id)
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if err != nil {
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core.HandleError(w, r, err)
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return
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}
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}
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}
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func (h HandlerImpl) getTransactionData(accounts []*account.Account, treasureChests []*treasure_chest_types.TreasureChest) (map[uuid.UUID]string, map[uuid.UUID]string) {
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accountMap := make(map[uuid.UUID]string, 0)
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for _, account := range accounts {
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accountMap[account.Id] = account.Name
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}
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treasureChestMap := make(map[uuid.UUID]string, 0)
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root := ""
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for _, treasureChest := range treasureChests {
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if treasureChest.ParentId == nil {
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root = treasureChest.Name + " > "
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treasureChestMap[treasureChest.Id] = treasureChest.Name
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} else {
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treasureChestMap[treasureChest.Id] = root + treasureChest.Name
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}
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}
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return accountMap, treasureChestMap
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}
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