package internalhttp

import (
	"net/http"
	"net/http/httptest"
	"testing"
	"time"

	"galaxy/mail/internal/domain/common"
	"galaxy/mail/internal/service/listdeliveries"

	"github.com/stretchr/testify/assert"
	"github.com/stretchr/testify/require"
)

func TestDecodeDeliveryListInputSuccess(t *testing.T) {
	t.Parallel()

	cursor, err := EncodeDeliveryListCursor(listdeliveries.Cursor{
		CreatedAt:  time.Unix(1_775_122_000, 0).UTC(),
		DeliveryID: common.DeliveryID("delivery-123"),
	})
	require.NoError(t, err)

	request := httptest.NewRequest(
		http.MethodGet,
		DeliveriesPath+"?recipient=pilot@example.com&status=sent&source=notification&template_id=template.welcome&idempotency_key=notification:delivery-123&from_created_at_ms=1775122000000&to_created_at_ms=1775122600000&limit=25&cursor="+cursor,
		nil,
	)

	input, err := DecodeDeliveryListInput(request)
	require.NoError(t, err)
	require.Equal(t, 25, input.Limit)
	require.Equal(t, common.Email("pilot@example.com"), input.Filters.Recipient)
	require.Equal(t, common.TemplateID("template.welcome"), input.Filters.TemplateID)
	require.Equal(t, common.IdempotencyKey("notification:delivery-123"), input.Filters.IdempotencyKey)
	require.NotNil(t, input.Cursor)
	require.Equal(t, common.DeliveryID("delivery-123"), input.Cursor.DeliveryID)
}

func TestDecodeDeliveryListInputRejectsInvalidCursor(t *testing.T) {
	t.Parallel()

	request := httptest.NewRequest(http.MethodGet, DeliveriesPath+"?cursor=bad", nil)

	_, err := DecodeDeliveryListInput(request)
	require.Error(t, err)
	assert.ErrorContains(t, err, "decode cursor")
}

func TestDeliveryListCursorRoundTrip(t *testing.T) {
	t.Parallel()

	cursor := listdeliveries.Cursor{
		CreatedAt:  time.Unix(1_775_122_500, 0).UTC(),
		DeliveryID: common.DeliveryID("delivery-xyz"),
	}

	encoded, err := EncodeDeliveryListCursor(cursor)
	require.NoError(t, err)

	decoded, err := DecodeDeliveryListCursor(encoded)
	require.NoError(t, err)
	require.Equal(t, cursor, decoded)
}

func TestDecodeDeliveryIDFromPath(t *testing.T) {
	t.Parallel()

	request := httptest.NewRequest(http.MethodGet, "/api/v1/internal/deliveries/delivery-123", nil)
	request.SetPathValue(deliveryIDPathValue, "delivery-123")

	deliveryID, err := DecodeDeliveryIDFromPath(request)
	require.NoError(t, err)
	require.Equal(t, common.DeliveryID("delivery-123"), deliveryID)
}