func storesHandler(api *apidb.Api) func(w http.ResponseWriter, r *http.Request) {
return func(w http.ResponseWriter, r *http.Request) {
setHeaders(w, r)
js, err := json.Marshal(api.GetAllStores())
if err != nil {
http.Error(w, err.Error(), http.StatusInternalServerError)
return
}
w.Header().Set("Content-Type", "application/json")
w.Write(js)
}
}
func purchasesHandler(api *apidb.Api) func(w http.ResponseWriter, r *http.Request) {
return func(w http.ResponseWriter, r *http.Request) {
setHeaders(w, r)
vars := mux.Vars(r)
productId, err := strconv.ParseInt(vars["productId"], 10, 64)
storeId, err := strconv.ParseInt(vars["storeId"], 10, 64)
if err != nil {
http.Error(w, err.Error(), http.StatusInternalServerError)
return
}
stores := api.GetAllStores()
var foundStore apidb.Store
for _, store := range stores {
if store.Id == storeId {
foundStore = store
break
}
}
products := api.GetAllProducts()
var foundProduct apidb.Product
for _, product := range products {
if product.Id == productId {
foundProduct = product
break
}
}
if foundStore.Id != storeId || foundProduct.Id != productId {
http.Error(w, "cannot find store or product", http.StatusInternalServerError)
return
}
receipts := api.GetAllReceipts()
var foundReceipts []apidb.Receipt = make([]apidb.Receipt, 0)
for _, receipt := range receipts {
if receipt.Store_id == foundStore.Id {
foundReceipts = append(foundReceipts, receipt)
}
}
purchases := api.GetAllPurchases()
var foundPurchases []apidb.Purchase = make([]apidb.Purchase, 0)
for _, purchase := range purchases {
if purchase.Product_id == foundProduct.Id {
for _, receipt := range foundReceipts {
if purchase.Receipt_id == receipt.Id {
foundPurchases = append(foundPurchases, purchase)
break
}
}
}
}
w.Header().Set("Content-Type", "application/json")
js, err := json.Marshal(foundPurchases)
if err != nil {
http.Error(w, err.Error(), http.StatusInternalServerError)
return
}
w.Write(js)
}
}