Implement comprehensive changes to enable UI client.

- Add bot interface and bot implementation.
- Replace turn-based concept to available actions concept.
- Add "confirm_round_end" action to simplify UI.
- Modify client logic to always accept actions.

examplebot/main.go → botclient/main.go

@@ -1,21 +1,21 @@
 //go:build !tinygo
 // +build !tinygo
 
-package examplebot
+package botclient
 
 import (
+	"encoding/json"
 	"fmt"
 	"log"
-	"math/rand"
+	"time"
 
 	"github.com/gorilla/websocket"
 	"github.com/marianogappa/truco/server"
 	"github.com/marianogappa/truco/truco"
 )
 
-func Bot(playerID int, address string) {
+func Bot(playerID int, address string, bot truco.Bot) {
 	// Open the WebSocket connection, and send a hello message.
-
 	conn, _, err := websocket.DefaultDialer.Dial(fmt.Sprintf("ws://%v/ws", address), nil)
 	if err != nil {
 		log.Fatalf("Failed to connect to WebSocket server: %v", err)
@@ -39,15 +39,17 @@ func Bot(playerID int, address string) {
 			return
 		}
 
-		if clientGameState.TurnPlayerID != playerID {
+		botAction := bot.ChooseAction(*clientGameState)
+
+		if botAction == nil {
+			time.Sleep(1 * time.Second)
 			continue
 		}
 
-		// Get a random element from clientGameState.PossibleActions.
-		randomAction := clientGameState.PossibleActions[rand.Intn(len(clientGameState.PossibleActions))]
+		bs, _ := json.Marshal(botAction)
 
 		// Send the action to the server.
-		if err := server.WsSend(conn, server.MessageAction{WebsocketMessage: server.WebsocketMessage{Type: server.MessageTypeAction}, Action: randomAction}); err != nil {
+		if err := server.WsSend(conn, server.MessageAction{WebsocketMessage: server.WebsocketMessage{Type: server.MessageTypeAction}, Action: bs}); err != nil {
 			log.Fatal(err)
 		}
 	}