package main

import (
	"fmt"
	"net/http"
	"reflect"
	"testing"
)

func TestGoProxyProtocolParser(t *testing.T) {
	t.Run(
		"Return another expected struct on request go-get for existing module",
		func(t *testing.T) {
			expected := &GoProxyRequest{
				URI:          "idio.link/go/netaddr",
				Module:       "idio.link/go/netaddr",
				ImportPath:   "idio.link/go/netaddr",
				Host:         "idio.link",
				RepoPath:     "idio.link/netaddr",
				Repo:         "netaddr",
				VersionMajor: "",
				Version:      "",
				Op:           GoProxyRequestNone,
			}

			module := "idio.link/go/netaddr"
			req, _ := http.NewRequest(
				"GET",
				fmt.Sprintf("https://%s?go-get=1", module),
				nil,
			)
			actual := new(GoProxyRequest)
			parseGoProxyPath(req, actual)

			if !reflect.DeepEqual(actual, expected) {
				t.Errorf("\nexpected:\n%#v\n\nactual:\n%#v", expected, actual)
			}
		},
	)
	t.Run(
		"Return expected struct on request go-get for existing module",
		func(t *testing.T) {
			expected := &GoProxyRequest{
				URI:          "idio.link/go/netaddr/v2",
				Module:       "idio.link/go/netaddr/v2",
				ImportPath:   "idio.link/go/netaddr",
				Host:         "idio.link",
				RepoPath:     "idio.link/netaddr",
				Repo:         "netaddr",
				VersionMajor: "v2",
				Version:      "",
				Op:           GoProxyRequestNone,
			}

			module := "idio.link/go/netaddr/v2"
			req, _ := http.NewRequest(
				"GET",
				fmt.Sprintf("https://%s?go-get=1", module),
				nil,
			)
			actual := new(GoProxyRequest)
			parseGoProxyPath(req, actual)

			if !reflect.DeepEqual(actual, expected) {
				t.Errorf("\nexpected:\n%#v\n\nactual:\n%#v", expected, actual)
			}
		},
	)
	t.Run(
		"Returns expected struct on request @latest for existing module",
		func(t *testing.T) {
			expected := &GoProxyRequest{
				URI:          "idio.link/go/netaddr/v2/@latest",
				Module:       "idio.link/go/netaddr/v2",
				ImportPath:   "idio.link/go/netaddr",
				Host:         "idio.link",
				RepoPath:     "idio.link/netaddr",
				Repo:         "netaddr",
				VersionMajor: "v2",
				Version:      "",
				Op:           GoProxyRequestLatest,
			}

			module := "idio.link/go/netaddr/v2"
			req, _ := http.NewRequest(
				"GET",
				fmt.Sprintf("https://%s/@latest", module),
				nil,
			)
			actual := new(GoProxyRequest)
			parseGoProxyPath(req, actual)

			if !reflect.DeepEqual(actual, expected) {
				t.Errorf("\nexpected:\n%#v\n\nactual:\n%#v", expected, actual)
			}
		},
	)
	t.Run(
		"Returns expected struct on request @v/$version.info for existing module",
		func(t *testing.T) {
			expected := &GoProxyRequest{
				URI:          "idio.link/go/netaddr/v2/@v/v2.0.0.info",
				Module:       "idio.link/go/netaddr/v2",
				ImportPath:   "idio.link/go/netaddr",
				Host:         "idio.link",
				RepoPath:     "idio.link/netaddr",
				Repo:         "netaddr",
				VersionMajor: "v2",
				Version:      "v2.0.0",
				Extension:    ".info",
				Op:           GoProxyRequestInfo,
			}

			module := "idio.link/go/netaddr/v2"
			version := "v2.0.0"
			req, _ := http.NewRequest(
				"GET",
				fmt.Sprintf("https://%s/@v/%s.info", module, version),
				nil,
			)
			actual := new(GoProxyRequest)
			parseGoProxyPath(req, actual)

			if !reflect.DeepEqual(actual, expected) {
				t.Errorf("\nexpected:\n%#v\n\nactual:\n%#v", expected, actual)
			}
		},
	)
}