package spectre_test

import (
	_ "embed"
	"encoding/xml"
	"fmt"
	"strconv"
	"testing"

	"go.jolheiser.com/go-spectre"
)

func TestSpectre(t *testing.T) {
	var tests TestCases
	if err := xml.Unmarshal(testsXML, &tests); err != nil {
		t.Log("could not load test data")
		t.FailNow()
	}

	dc := tests.Cases[0]
	for _, tc := range tests.Cases[1:] {
		t.Run(tc.ID, func(t *testing.T) {
			user := def(dc.UserName, tc.UserName)
			secret := def(dc.UserSecret, tc.UserSecret)

			s, err := spectre.New(user, secret)
			if err != nil {
				t.Logf("could not initialize spectre: %v", err)
				t.Fail()
			}

			siteName := def(dc.SiteName, tc.SiteName)
			template := def(dc.ResultType, tc.ResultType)
			counterStr := def(dc.KeyCounter, tc.KeyCounter)
			counter, err := strconv.Atoi(counterStr)
			if err != nil {
				t.Log("could not convert counter")
				t.Fail()
			}
			scope := def(dc.KeyPurpose, tc.KeyPurpose)

			pass := s.Site(siteName,
				spectre.WithTemplate(spectre.Template(template)),
				spectre.WithCounter(counter),
				spectre.WithScope(spectre.Scope(scope)),
			)

			if pass != tc.Result {
				t.Log("passwords did not match")
				t.Fail()
			}
		})
	}
}

// From the website sanity check
func Example() {
	s, err := spectre.New("Robert Lee Mitchell", "banana colored duckling")
	if err != nil {
		panic(err)
	}

	pw := s.Site("masterpasswordapp.com")
	fmt.Println(pw)
	// Output: Jejr5[RepuSosp
}

// Example with options
func Example_second() {
	scoper := spectre.SimpleScoper{
		Key: "com.jojodev.jolheiser",
	}
	s, err := spectre.New("Robert Lee Mitchell", "banana colored duckling", spectre.WithScoper(scoper))
	if err != nil {
		panic(err)
	}

	pw := s.Site("jojodev.com",
		spectre.WithScope(spectre.Identification),
		spectre.WithTemplate(spectre.Maximum),
		spectre.WithCounter(2), // Password was leaked, so increment counter (example)
	)
	fmt.Println(pw)
	// Output: Ig^JIcxD!*)TbefJBi6-
}

//go:embed cmd/spectre/spectre_tests.xml
var testsXML []byte

type TestCases struct {
	Cases []TestCase `xml:"case"`
}

type TestCase struct {
	ID         string `xml:"id,attr"`
	UserName   string `xml:"userName"`
	UserSecret string `xml:"userSecret"`
	SiteName   string `xml:"siteName"`
	ResultType string `xml:"resultType"`
	KeyCounter string `xml:"keyCounter"`
	KeyPurpose string `xml:"keyPurpose"`
	Result     string `xml:"result"`
}

func def(def, alt string) string {
	if alt != "" {
		return alt
	}
	return def
}