package routes

import (
	"encoding/base64"
	"encoding/json"
	"net/http"
	"testing"
	"time"

	"github.com/gofiber/fiber/v2"
)

func TestTotpViewRoutes(t *testing.T) {
	app := fiber.New()
	TotpViewSetup(app, "GEZDGNBVGY3TQOJQGEZDGNBVGY3TQOJQ", "view-password")

	for _, path := range []string{"/fwh-totp/", "/fwh-totp/code"} {
		req, _ := http.NewRequest(http.MethodGet, path, nil)
		res, err := app.Test(req)
		if err != nil || res.StatusCode != http.StatusUnauthorized {
			t.Fatalf("unauthorized %s: status %v, err %v", path, res.StatusCode, err)
		}
		if res.Header.Get("Cache-Control") != "no-store, max-age=0" {
			t.Fatalf("missing no-store on %s", path)
		}
	}

	req, _ := http.NewRequest(http.MethodGet, "/fwh-totp/code", nil)
	req.Header.Set("Authorization", "Basic "+base64.StdEncoding.EncodeToString([]byte("fwh:wrong")))
	res, err := app.Test(req)
	if err != nil || res.StatusCode != http.StatusUnauthorized {
		t.Fatalf("wrong password: status %v, err %v", res.StatusCode, err)
	}

	req, _ = http.NewRequest(http.MethodGet, "/fwh-totp/code", nil)
	req.SetBasicAuth("fwh", "view-password")
	res, err = app.Test(req)
	if err != nil || res.StatusCode != http.StatusOK {
		t.Fatalf("authorized request: status %v, err %v", res.StatusCode, err)
	}
	var body struct {
		Code       string `json:"code"`
		ExpiresAt  int64  `json:"expiresAt"`
		ServerTime int64  `json:"serverTime"`
	}
	if err := json.NewDecoder(res.Body).Decode(&body); err != nil {
		t.Fatal(err)
	}
	if len(body.Code) != 6 || body.ExpiresAt-body.ServerTime <= 0 || body.ExpiresAt-body.ServerTime > int64(30*time.Second/time.Millisecond) {
		t.Fatalf("invalid TOTP response: %+v", body)
	}

	for _, path := range []string{"/fwh-totp", "/fwh-totp/"} {
		req, _ = http.NewRequest(http.MethodGet, path, nil)
		req.SetBasicAuth("fwh", "view-password")
		res, err = app.Test(req)
		if err != nil || res.StatusCode != http.StatusOK || res.Header.Get("Content-Type") != "text/html; charset=utf-8" {
			t.Fatalf("page request %s: status %v, content-type %q, err %v", path, res.StatusCode, res.Header.Get("Content-Type"), err)
		}
	}
}

func TestTotpViewDisabledWithoutPassword(t *testing.T) {
	app := fiber.New()
	TotpViewSetup(app, "GEZDGNBVGY3TQOJQGEZDGNBVGY3TQOJQ", "")
	req, _ := http.NewRequest(http.MethodGet, "/fwh-totp/code", nil)
	res, err := app.Test(req)
	if err != nil || res.StatusCode != http.StatusNotFound {
		t.Fatalf("disabled route: status %v, err %v", res.StatusCode, err)
	}
}

func TestMainRoutesDoNotExposeTotpView(t *testing.T) {
	app := fiber.New()
	Setup(app)
	for _, path := range []string{"/fwh-totp/", "/fwh-totp/code"} {
		req, _ := http.NewRequest(http.MethodGet, path, nil)
		res, err := app.Test(req)
		if err != nil || res.StatusCode != http.StatusNotFound {
			t.Fatalf("main app route %s: status %v, err %v", path, res.StatusCode, err)
		}
	}
}