package discovery_test

import (
	"testing"

	"github.com/shcizo/package-updater/internal/discovery"
	"github.com/stretchr/testify/require"
)

func TestNormaliseImage(t *testing.T) {
	cases := []struct {
		in   string
		want string
	}{
		{"registry.example.com/myapp", "registry.example.com/myapp"},
		{"registry.example.com/myapp:v1.2.3", "registry.example.com/myapp"},
		{"registry.example.com/myapp:latest", "registry.example.com/myapp"},
		{"registry.example.com/myapp@sha256:abc123", "registry.example.com/myapp"},
		{"registry.example.com/myapp:v1.2.3@sha256:abc123", "registry.example.com/myapp"},
		{"nginx", "nginx"},
		{"nginx:1.25-alpine", "nginx"},
		{"library/nginx:latest", "library/nginx"},
		{"gcr.io/proj/svc:tag", "gcr.io/proj/svc"},
		{"localhost:5000/myimg:v1", "localhost:5000/myimg"},
	}
	for _, c := range cases {
		t.Run(c.in, func(t *testing.T) {
			require.Equal(t, c.want, discovery.NormaliseImage(c.in))
		})
	}
}

func TestImagesMatch(t *testing.T) {
	require.True(t, discovery.ImagesMatch(
		"registry.example.com/myapp",
		"registry.example.com/myapp:v1.2.3",
	))
	require.True(t, discovery.ImagesMatch(
		"registry.example.com/myapp:v1.0.0",
		"registry.example.com/myapp:v9.9.9",
	))
	require.False(t, discovery.ImagesMatch(
		"registry.example.com/myapp",
		"registry.example.com/otherapp",
	))
	// Case-sensitive per spec section 5.2
	require.False(t, discovery.ImagesMatch(
		"registry.example.com/MyApp",
		"registry.example.com/myapp",
	))
}