// SPDX-FileCopyrightText: 2026 Echolot contributors
// SPDX-License-Identifier: GPL-3.0-or-later

package adminui

import (
	"encoding/json"
	"net/http"
	"net/http/httptest"
	"strings"
	"testing"
	"time"

	"echo-lot.app/server/internal/store"
)

func adbFixture(t *testing.T) *Server {
	t.Helper()
	s := tokenFixture(t)
	s.Store.SetADBEndpointRetention(24 * time.Hour)
	now := time.Now().UTC()
	for _, e := range []store.ADBEndpoint{
		{Device: "dev-a", Host: "10.13.102.128", Port: 45305, DeviceName: "TB330FU",
			SourceIP: "10.13.102.128", ReportedAt: now.Add(-10 * time.Minute)},
		{Device: "dev-b", Host: "10.13.102.55", Port: 5555,
			SourceIP: "10.13.102.55", ReportedAt: now.Add(-time.Minute)},
	} {
		if err := s.Store.PutADBEndpoint(e); err != nil {
			t.Fatal(err)
		}
	}
	return s
}

// A LAN address and a live debug port are exactly what must not be readable by anyone who can
// reach the listener — which is how the beacon receiver this replaces worked.
func TestADBEndpointsReadRequiresAuth(t *testing.T) {
	h := adbFixture(t).Handler()

	req := httptest.NewRequest("GET", "/admin/adb-endpoints", nil)
	rec := httptest.NewRecorder()
	h.ServeHTTP(rec, req)
	if rec.Code != http.StatusUnauthorized || rec.Header().Get("WWW-Authenticate") == "" {
		t.Fatalf("unauthenticated: code=%d, want 401 with a challenge", rec.Code)
	}
	if rec.Body.Len() > 0 && json.Valid(rec.Body.Bytes()) {
		t.Fatalf("a refusal returned a JSON body: %s", rec.Body.String())
	}

	req = httptest.NewRequest("GET", "/admin/adb-endpoints", nil)
	req.SetBasicAuth("admin", "wrong")
	rec = httptest.NewRecorder()
	h.ServeHTTP(rec, req)
	if rec.Code != http.StatusUnauthorized {
		t.Fatalf("bad password: code=%d, want 401", rec.Code)
	}
}

func TestADBEndpointsReadNewestFirst(t *testing.T) {
	h := adbFixture(t).Handler()
	req := httptest.NewRequest("GET", "/admin/adb-endpoints", nil)
	req.SetBasicAuth("admin", "a-long-test-password")
	rec := httptest.NewRecorder()
	h.ServeHTTP(rec, req)
	if rec.Code != http.StatusOK {
		t.Fatalf("code=%d body=%s", rec.Code, rec.Body.String())
	}
	var rows []adbRow
	if err := json.Unmarshal(rec.Body.Bytes(), &rows); err != nil {
		t.Fatal(err)
	}
	if len(rows) != 2 {
		t.Fatalf("got %d rows, want 2: %s", len(rows), rec.Body.String())
	}
	if rows[0].Device != "dev-b" {
		t.Fatalf("rows are not newest first: %+v", rows)
	}
	if rows[0].Host != "10.13.102.55" || rows[0].Port != 5555 || rows[0].SourceIP == "" {
		t.Fatalf("row is missing what a developer came for: %+v", rows[0])
	}
	// age_s is the field that says whether the port is worth trying at all.
	if rows[0].AgeS < 50 || rows[0].AgeS > 120 {
		t.Fatalf("age_s = %d, want roughly 60", rows[0].AgeS)
	}
	if rows[1].AgeS <= rows[0].AgeS {
		t.Fatalf("ages do not follow the ordering: %+v", rows)
	}
}

// The card exists so the relay is usable without curl. Rendered here because a template error is
// only found when the page is executed, not when it is parsed.
func TestDashboardShowsTheRelayToAnAdmin(t *testing.T) {
	s := adbFixture(t)
	h := s.Handler()

	req := httptest.NewRequest("GET", "/", nil)
	req.AddCookie(&http.Cookie{
		Name: sessionCookie, Value: s.Sessions.Issue("local:admin", "admin", true),
	})
	rec := httptest.NewRecorder()
	h.ServeHTTP(rec, req)
	if rec.Code != http.StatusOK {
		t.Fatalf("dashboard: code=%d", rec.Code)
	}
	for _, want := range []string{"Dev relay", "10.13.102.55:5555", "min ago"} {
		if !strings.Contains(rec.Body.String(), want) {
			t.Errorf("the dashboard card does not show %q", want)
		}
	}

	// A plain user gets no rows at all — not an empty card, no card.
	req = httptest.NewRequest("GET", "/", nil)
	req.AddCookie(&http.Cookie{
		Name: sessionCookie, Value: s.Sessions.Issue("oidc#someone", "Someone", false),
	})
	rec = httptest.NewRecorder()
	h.ServeHTTP(rec, req)
	if strings.Contains(rec.Body.String(), "10.13.102.55") {
		t.Fatal("a non-admin session was shown a LAN address")
	}
}

// The read is a GET, so a signed-in browser session must not be asked for a CSRF token it has no
// form to carry — but a session that is not an administrator is still refused.
func TestADBEndpointsReadFromABrowserSession(t *testing.T) {
	s := adbFixture(t)
	h := s.Handler()

	for _, tc := range []struct {
		name     string
		admin    bool
		wantCode int
	}{
		{"admin", true, http.StatusOK},
		{"plain user", false, http.StatusForbidden},
	} {
		req := httptest.NewRequest("GET", "/admin/adb-endpoints", nil)
		req.AddCookie(&http.Cookie{
			Name:  sessionCookie,
			Value: s.Sessions.Issue("local:admin", "admin", tc.admin),
		})
		rec := httptest.NewRecorder()
		h.ServeHTTP(rec, req)
		if rec.Code != tc.wantCode {
			t.Errorf("%s: code=%d, want %d (%s)", tc.name, rec.Code, tc.wantCode, rec.Body.String())
		}
	}
}