commit inicial do projeto

internal/api/account_handlers.go

@@ -0,0 +1,82 @@
+package api
+
+import (
+	"dejo_node/internal/state"
+	"dejo_node/internal/storage"
+	"encoding/json"
+	"net/http"
+	"strings"
+)
+
+var GlobalState *state.State
+var GlobalBlockStore *storage.BlockStore
+
+func HandleGetBalance(w http.ResponseWriter, r *http.Request) {
+	addr := strings.TrimPrefix(r.URL.Path, "/accounts/")
+	if strings.Contains(addr, "/") {
+		addr = strings.Split(addr, "/")[0]
+	}
+	if addr == "" {
+		http.Error(w, "endereço inválido", http.StatusBadRequest)
+		return
+	}
+
+	balance := GlobalState.GetBalance(addr)
+	resp := map[string]interface{}{
+		"address": addr,
+		"balance": balance,
+	}
+	w.Header().Set("Content-Type", "application/json")
+	json.NewEncoder(w).Encode(resp)
+}
+
+func HandleGetTransactionsByAddress(w http.ResponseWriter, r *http.Request) {
+	addr := strings.TrimPrefix(r.URL.Path, "/accounts/")
+	addr = strings.TrimSuffix(addr, "/txs")
+	if addr == "" {
+		http.Error(w, "endereço inválido", http.StatusBadRequest)
+		return
+	}
+
+	txs := []map[string]interface{}{}
+	blocks, err := GlobalBlockStore.LoadAll()
+	if err != nil {
+		http.Error(w, "erro ao carregar blocos", http.StatusInternalServerError)
+		return
+	}
+	for _, blk := range blocks {
+		for _, tx := range blk.Txns {
+			if tx.From == addr || tx.To == addr {
+				txs = append(txs, map[string]interface{}{
+					"from":  tx.From,
+					"to":    tx.To,
+					"value": tx.Value,
+					"hash":  tx.Hash(),
+					"block": blk.Index,
+				})
+			}
+		}
+	}
+
+	w.Header().Set("Content-Type", "application/json")
+	json.NewEncoder(w).Encode(txs)
+}
+
+func (h *Handler) GetTransactionByHash(w http.ResponseWriter, r *http.Request) {
+	hash := strings.TrimPrefix(r.URL.Path, "/transaction/")
+	blocks, err := h.Store.LoadAll()
+	if err != nil {
+		http.Error(w, "erro ao carregar blocos", http.StatusInternalServerError)
+		return
+	}
+	for _, blk := range blocks {
+		for _, tx := range blk.Txns {
+			if tx.Hash() == hash {
+				w.Header().Set("Content-Type", "application/json")
+				json.NewEncoder(w).Encode(tx)
+				return
+			}
+		}
+	}
+	http.Error(w, "transação não encontrada", http.StatusNotFound)
+}