package referer_test

import (
	"testing"

	"github.com/stretchr/testify/assert"
	"sneak.berlin/go/webhooker/internal/referer"
)

// entrypointUUID is the secret part of an entrypoint URL; no case may
// return it.
const entrypointUUID = "0b6f7d3e-6a39-4e3c-9f0a-2c4d8e1b5a77"

// redacted is what SchemeAndHost returns for a Referer it cannot
// reduce to a scheme and host.
const redacted = "(redacted)"

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

	for _, tc := range []struct {
		name    string
		referer string
		want    string
	}{
		{
			name:    "no Referer",
			referer: "",
			want:    "",
		},
		{
			name: "entrypoint URL with a query",
			referer: "http://webhooker.example/h/" + entrypointUUID +
				"?src=ci",
			want: "http://webhooker.example",
		},
		{
			name:    "host with a port",
			referer: "https://webhooker.example:8443/h/" + entrypointUUID,
			want:    "https://webhooker.example:8443",
		},
		{
			name:    "path without a scheme or host",
			referer: "/h/" + entrypointUUID,
			want:    redacted,
		},
		{
			name:    "host without a scheme",
			referer: "webhooker.example/h/" + entrypointUUID,
			want:    redacted,
		},
		{
			name:    "not a URL",
			referer: "http://[::1/h/" + entrypointUUID,
			want:    redacted,
		},
	} {
		t.Run(tc.name, func(t *testing.T) {
			t.Parallel()

			got := referer.SchemeAndHost(tc.referer)

			assert.Equal(t, tc.want, got)
			assert.NotContains(t, got, entrypointUUID)
		})
	}
}