package smtp2shoutrrr

import (
	"os"
	"path/filepath"
	"testing"

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

func writeConfig(t *testing.T, contents string) string {
	t.Helper()

	path := filepath.Join(t.TempDir(), "config.toml")
	require.NoError(t, os.WriteFile(path, []byte(contents), 0o600))

	return path
}

func TestLoadConfig(t *testing.T) {
	path := writeConfig(t, `
Port = 2525
Username = "user"
Password = "secret"

[[Recipients]]
Addresses = ["user@example.com"]
Targets = ["ntfy://ntfy.sh/topic"]

[[Recipients]]
Addresses = ["legacy@example.com"]
Target = "ntfy://ntfy.sh/legacy"

[CatchAll]
Targets = ["ntfy://ntfy.sh/catch-all"]
`)

	config, err := LoadConfig(path)
	require.NoError(t, err)

	require.Equal(t, 2525, config.Port)
	require.Equal(t, "user", config.Username)
	require.Equal(t, "secret", config.Password)

	require.Len(t, config.Recipients, 2)
	require.Equal(t, []string{"user@example.com"}, config.Recipients[0].Addresses)
	require.Equal(t, []string{"ntfy://ntfy.sh/topic"}, config.Recipients[0].Targets)
	require.Equal(t, "ntfy://ntfy.sh/legacy", config.Recipients[1].Target)

	require.NotNil(t, config.CatchAll)
	require.Equal(t, []string{"ntfy://ntfy.sh/catch-all"}, config.CatchAll.Targets)
}

func TestLoadConfigAppliesDefaults(t *testing.T) {
	path := writeConfig(t, `
[[Recipients]]
Addresses = ["user@example.com"]
Targets = ["ntfy://ntfy.sh/topic"]
`)

	config, err := LoadConfig(path)
	require.NoError(t, err)

	require.Equal(t, 11125, config.Port)
	require.Equal(t, "username", config.Username)
	require.Equal(t, "password", config.Password)
	require.Nil(t, config.CatchAll)
}

func TestLoadConfigMissingFile(t *testing.T) {
	_, err := LoadConfig(filepath.Join(t.TempDir(), "does-not-exist.toml"))
	require.Error(t, err)
}

func TestLoadConfigInvalidTOML(t *testing.T) {
	_, err := LoadConfig(writeConfig(t, "Port = "))
	require.Error(t, err)
}