package ingress

import (
	"net/http"
	"testing"

	"github.com/cloudflare/cloudflared/h2mux"
	"github.com/stretchr/testify/assert"
)

func TestBridgeServiceDestination(t *testing.T) {
	canonicalJumpDestHeader := http.CanonicalHeaderKey(h2mux.CFJumpDestinationHeader)
	tests := []struct {
		name         string
		header       http.Header
		expectedDest string
		wantErr      bool
	}{
		{
			name: "hostname destination",
			header: http.Header{
				canonicalJumpDestHeader: []string{"localhost"},
			},
			expectedDest: "localhost",
		},
		{
			name: "hostname destination with port",
			header: http.Header{
				canonicalJumpDestHeader: []string{"localhost:9000"},
			},
			expectedDest: "localhost:9000",
		},
		{
			name: "hostname destination with scheme and port",
			header: http.Header{
				canonicalJumpDestHeader: []string{"ssh://localhost:9000"},
			},
			expectedDest: "localhost:9000",
		},
		{
			name: "full hostname url",
			header: http.Header{
				canonicalJumpDestHeader: []string{"ssh://localhost:9000/metrics"},
			},
			expectedDest: "localhost:9000",
		},
		{
			name: "hostname destination with port and path",
			header: http.Header{
				canonicalJumpDestHeader: []string{"localhost:9000/metrics"},
			},
			expectedDest: "localhost:9000",
		},
		{
			name: "ip destination",
			header: http.Header{
				canonicalJumpDestHeader: []string{"127.0.0.1"},
			},
			expectedDest: "127.0.0.1",
		},
		{
			name: "ip destination with port",
			header: http.Header{
				canonicalJumpDestHeader: []string{"127.0.0.1:9000"},
			},
			expectedDest: "127.0.0.1:9000",
		},
		{
			name: "ip destination with port and path",
			header: http.Header{
				canonicalJumpDestHeader: []string{"127.0.0.1:9000/metrics"},
			},
			expectedDest: "127.0.0.1:9000",
		},
		{
			name: "ip destination with schem and port",
			header: http.Header{
				canonicalJumpDestHeader: []string{"tcp://127.0.0.1:9000"},
			},
			expectedDest: "127.0.0.1:9000",
		},
		{
			name: "full ip url",
			header: http.Header{
				canonicalJumpDestHeader: []string{"ssh://127.0.0.1:9000/metrics"},
			},
			expectedDest: "127.0.0.1:9000",
		},
		{
			name:    "no destination",
			wantErr: true,
		},
	}
	s := newBridgeService(nil)
	for _, test := range tests {
		r := &http.Request{
			Header: test.header,
		}
		dest, err := s.destination(r)
		if test.wantErr {
			assert.Error(t, err, "Test %s expects error", test.name)
		} else {
			assert.NoError(t, err, "Test %s expects no error, got error %v", test.name, err)
			assert.Equal(t, test.expectedDest, dest, "Test %s expect dest %s, got %s", test.name, test.expectedDest, dest)
		}
	}
}