package app

import (
	"io"
	"log/slog"
	"testing"
	"time"

	"galaxy/mail/internal/config"

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

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

	provider, err := newProvider(config.SMTPConfig{
		Mode: config.SMTPModeStub,
	}, bootstrapTestLogger())
	require.NoError(t, err)
	require.NoError(t, provider.Close())
}

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

	provider, err := newProvider(config.SMTPConfig{
		Mode:      config.SMTPModeSMTP,
		Addr:      "127.0.0.1:2525",
		FromEmail: "noreply@example.com",
		Timeout:   15 * time.Second,
	}, bootstrapTestLogger())
	require.NoError(t, err)
	require.NoError(t, provider.Close())
}

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

	_, err := newProvider(config.SMTPConfig{
		Mode:      config.SMTPModeSMTP,
		Addr:      "127.0.0.1:2525",
		Username:  "mailer",
		FromEmail: "noreply@example.com",
		Timeout:   15 * time.Second,
	}, bootstrapTestLogger())
	require.Error(t, err)
	require.Contains(t, err.Error(), "smtp username and password")
}

func bootstrapTestLogger() *slog.Logger {
	return slog.New(slog.NewJSONHandler(io.Discard, nil))
}