// Copyright (C) 2024  Umorpha Systems
// SPDX-License-Identifier: AGPL-3.0-or-later

package main

import (
	"net/http"
	"net/url"
	"testing"

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

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

	type testcase struct {
		InRequestLine string
		ExpRepo       string
		ExpFile       string
		ExpService    string
		ExpErr        string
	}
	testcases := map[string]testcase{
		// These first few testcases are taken from the
		// gitprotocol-http(5) manpage, as of Git 2.43.0.
		"manpage-1": testcase{
			InRequestLine: "/git/repo.git/objects/d0/49f6c27a2244e12041955e262a404c7faba355",
			ExpRepo:       "/git/repo.git",
			ExpFile:       "/objects/d0/49f6c27a2244e12041955e262a404c7faba355",
			ExpService:    "",
		},
		"manpage-2": testcase{
			InRequestLine: "/daemon.cgi?svc=git&q=/info/refs&service=git-receive-pack",
			ExpRepo:       "/daemon.cgi?svc=git&q=",
			ExpFile:       "/info/refs",
			ExpService:    "git-receive-pack",
		},
		"manpage-3": testcase{
			InRequestLine: "/git/repo.git/path/submodule.git/info/refs",
			ExpRepo:       "/git/repo.git/path/submodule.git",
			ExpFile:       "/info/refs",
			ExpService:    "",
		},
	}

	for tcName, tc := range testcases {
		tc := tc
		t.Run(tcName, func(t *testing.T) {
			t.Parallel()

			uri, err := url.ParseRequestURI(tc.InRequestLine)
			require.NoError(t, err)
			req := &http.Request{
				URL:        uri,
				RequestURI: tc.InRequestLine,
			}

			actRepo, actFile, actService, actErr := routeGitHTTP(req)

			assert.Equal(t, tc.ExpRepo, actRepo)
			assert.Equal(t, tc.ExpFile, actFile)
			assert.Equal(t, tc.ExpService, actService)
			if tc.ExpErr == "" {
				assert.NoError(t, actErr)
			} else {
				assert.EqualError(t, err, tc.ExpErr)
			}
		})
	}
}