package bot

import (
	"context"
	"testing"
	"time"

	storagemodel "github.com/tech/sendico/gateway/tgsettle/storage/model"
	mloggerfactory "github.com/tech/sendico/pkg/mlogger/factory"
	"github.com/tech/sendico/pkg/model"
)

type fakeService struct{}

func (fakeService) ExecutionDelay() time.Duration {
	return 30 * time.Second
}

func (fakeService) MaxPerOperationLimit() string {
	return "1000000"
}

func (fakeService) GetActiveRequestForAccount(context.Context, string) (*storagemodel.TreasuryRequest, error) {
	return nil, nil
}

func (fakeService) CreateRequest(context.Context, CreateRequestInput) (*storagemodel.TreasuryRequest, error) {
	return nil, nil
}

func (fakeService) ConfirmRequest(context.Context, string, string) (*storagemodel.TreasuryRequest, error) {
	return nil, nil
}

func (fakeService) CancelRequest(context.Context, string, string) (*storagemodel.TreasuryRequest, error) {
	return nil, nil
}

func TestRouterUnauthorizedInAllowedChatSendsAccessDenied(t *testing.T) {
	var sent []string
	router := NewRouter(
		mloggerfactory.NewLogger(false),
		fakeService{},
		func(_ context.Context, _ string, text string) error {
			sent = append(sent, text)
			return nil
		},
		nil,
		[]string{"100"},
		map[string]string{"123": "acct-1"},
	)
	handled := router.HandleUpdate(context.Background(), &model.TelegramWebhookUpdate{
		Message: &model.TelegramMessage{
			ChatID:     "100",
			FromUserID: "999",
			Text:       "/fund",
		},
	})
	if !handled {
		t.Fatalf("expected update to be handled")
	}
	if len(sent) != 1 {
		t.Fatalf("expected one message, got %d", len(sent))
	}
	if sent[0] != unauthorizedMessage {
		t.Fatalf("unexpected message: %q", sent[0])
	}
}

func TestRouterUnknownChatIsIgnored(t *testing.T) {
	var sent []string
	router := NewRouter(
		mloggerfactory.NewLogger(false),
		fakeService{},
		func(_ context.Context, _ string, text string) error {
			sent = append(sent, text)
			return nil
		},
		nil,
		[]string{"100"},
		map[string]string{"123": "acct-1"},
	)
	handled := router.HandleUpdate(context.Background(), &model.TelegramWebhookUpdate{
		Message: &model.TelegramMessage{
			ChatID:     "999",
			FromUserID: "123",
			Text:       "/fund",
		},
	})
	if !handled {
		t.Fatalf("expected update to be handled")
	}
	if len(sent) != 0 {
		t.Fatalf("expected no messages, got %d", len(sent))
	}
}

func TestRouterEmptyAllowedChats_AllowsAnyChatForAuthorizedUser(t *testing.T) {
	var sent []string
	router := NewRouter(
		mloggerfactory.NewLogger(false),
		fakeService{},
		func(_ context.Context, _ string, text string) error {
			sent = append(sent, text)
			return nil
		},
		nil,
		nil,
		map[string]string{"123": "acct-1"},
	)
	handled := router.HandleUpdate(context.Background(), &model.TelegramWebhookUpdate{
		Message: &model.TelegramMessage{
			ChatID:     "999",
			FromUserID: "123",
			Text:       "/fund",
		},
	})
	if !handled {
		t.Fatalf("expected update to be handled")
	}
	if len(sent) != 1 {
		t.Fatalf("expected one message, got %d", len(sent))
	}
	if sent[0] != "Enter amount:" {
		t.Fatalf("unexpected message: %q", sent[0])
	}
}

func TestRouterEmptyAllowedChats_UnauthorizedUserGetsDenied(t *testing.T) {
	var sent []string
	router := NewRouter(
		mloggerfactory.NewLogger(false),
		fakeService{},
		func(_ context.Context, _ string, text string) error {
			sent = append(sent, text)
			return nil
		},
		nil,
		nil,
		map[string]string{"123": "acct-1"},
	)
	handled := router.HandleUpdate(context.Background(), &model.TelegramWebhookUpdate{
		Message: &model.TelegramMessage{
			ChatID:     "777",
			FromUserID: "999",
			Text:       "/fund",
		},
	})
	if !handled {
		t.Fatalf("expected update to be handled")
	}
	if len(sent) != 1 {
		t.Fatalf("expected one message, got %d", len(sent))
	}
	if sent[0] != unauthorizedMessage {
		t.Fatalf("unexpected message: %q", sent[0])
	}
}