package web

import (
	"bytes"
	"io"
	"log"
	"net/http/httptest"
	"path/filepath"
	"strings"
	"testing"
	"time"

	"gitea.dooplex.hu/admin/felhom-hub/internal/store"
)

// Catches template SYNTAX errors (template.Must in New panics) and that the per-customer floor renders
// on the Customers list. Field-level execution errors surface as a non-nil ExecuteTemplate error.
func TestTemplates_FloorRender(t *testing.T) {
	st, err := store.New(filepath.Join(t.TempDir(), "t.db"), log.New(io.Discard, "", 0))
	if err != nil {
		t.Fatalf("store.New: %v", err)
	}
	t.Cleanup(func() { st.Close() })
	s := New(st, "", "", "test", time.Hour, log.New(io.Discard, "", 0)) // template.Must runs here

	// configs.html — the list page data shape used by handleConfigList (global floor/artifacts moved
	// to the Configuration tab; the per-customer effective floor still renders here).
	cfgData := struct {
		Customers []customerListEntry
		ActiveNav string
		Flash     string
	}{
		Customers: []customerListEntry{{
			CustomerID: "c", EffectiveFloor: "0.87.0", FloorOverride: "0.87.0", BelowFloor: true,
			ControllerVersion: "0.86.0", HasConfig: true,
		}},
		ActiveNav: "configs",
	}
	var buf bytes.Buffer
	if err := s.templates.ExecuteTemplate(&buf, "configs.html", cfgData); err != nil {
		t.Fatalf("render configs.html: %v", err)
	}
	if !bytes.Contains(buf.Bytes(), []byte("0.87.0")) {
		t.Errorf("configs.html missing per-customer floor content")
	}
	// The global floor + artifact cards must NOT be on the Customers page anymore.
	if bytes.Contains(buf.Bytes(), []byte("global floor")) || bytes.Contains(buf.Bytes(), []byte("Day-0 artifacts")) {
		t.Errorf("configs.html still renders global settings that moved to Configuration")
	}

	// configuration.html — the Configuration tab now carries the global floor + artifact settings.
	confData := map[string]interface{}{
		"CSRFToken":     "tok",
		"CSRFField":     s.csrfField(httptest.NewRequest("GET", "/", nil)),
		"AssetCount":    0,
		"AssetLastSync": "",
		"GlobalFloor":   "0.86.0",
		"Artifacts":     store.ArtifactManifest{AgentVersion: "0.43.0", GoldenVersion: "0.85.1"},
		"Flash":         "artifacts_set",
	}
	buf.Reset()
	if err := s.templates.ExecuteTemplate(&buf, "configuration.html", confData); err != nil {
		t.Fatalf("render configuration.html: %v", err)
	}
	body := buf.String()
	for _, want := range []string{"global floor", "Day-0 artifacts", "0.86.0", "0.43.0",
		"/configuration/global-floor", "/configuration/artifacts", "Artifact manifest saved"} {
		if !strings.Contains(body, want) {
			t.Errorf("configuration.html missing %q", want)
		}
	}
}

// Scenario D of the v0.31.0 critical-severity fix: a customer with critical events must render a
// distinct severity-critical count badge on the dashboard, ordered BEFORE the error badge.
// (Pre-fix consumer gap: criticals were accepted but invisible in the 24h summary counts.)
func TestTemplates_DashboardCriticalBadge(t *testing.T) {
	st, err := store.New(filepath.Join(t.TempDir(), "t.db"), log.New(io.Discard, "", 0))
	if err != nil {
		t.Fatalf("store.New: %v", err)
	}
	t.Cleanup(func() { st.Close() })
	s := New(st, "", "", "test", time.Hour, log.New(io.Discard, "", 0))

	// Mirrors the anonymous dashboardCustomer struct in handleDashboard.
	type dashboardCustomer struct {
		store.CustomerSummary
		OverallStatus  string
		HostCause      string
		BackupAge      string
		EventCriticals int
		EventErrors    int
		EventWarnings  int
	}
	// v0.65.0: dashboard.html takes {Customers, OffsiteTile, PBSTile}; nil tiles → no gauges rendered.
	data := struct {
		Customers   []dashboardCustomer
		OffsiteTile any
		PBSTile     any
	}{Customers: []dashboardCustomer{{
		CustomerSummary: store.CustomerSummary{CustomerID: "c1", CustomerName: "Acme", ReceivedAt: time.Now()},
		OverallStatus:   "ok", BackupAge: "–",
		EventCriticals: 2, EventErrors: 1, EventWarnings: 0,
	}}}
	var buf bytes.Buffer
	if err := s.templates.ExecuteTemplate(&buf, "dashboard.html", data); err != nil {
		t.Fatalf("render dashboard.html: %v", err)
	}
	body := buf.String()
	critIdx := strings.Index(body, `severity-badge severity-critical">2<`)
	errIdx := strings.Index(body, `severity-badge severity-error">1<`)
	if critIdx < 0 {
		t.Fatalf("dashboard.html missing the severity-critical count badge")
	}
	if errIdx < 0 {
		t.Fatalf("dashboard.html missing the severity-error count badge")
	}
	if critIdx > errIdx {
		t.Errorf("critical badge renders AFTER the error badge (crit@%d, err@%d) — must be first", critIdx, errIdx)
	}
}

// GL-7 Part 1: the retrieval passphrase must be MASKED by default and NEVER baked into a copyable
// command block. The value still ships in data-secret (the reveal/copy mechanism — the existing
// model), but the Option-3 debug curl must carry a placeholder, not the secret.
// RED-PROOF: revert the Option-3 block to `X-Retrieval-Password: {{.Config.RetrievalPassword}}`
// (or the #retrieval-pw code back to the raw value) → the secret appears in a command / unmasked →
// the "not in the -H command" / masked assertions FAIL.
func TestTemplates_PassphraseHardened(t *testing.T) {
	st, err := store.New(filepath.Join(t.TempDir(), "t.db"), log.New(io.Discard, "", 0))
	if err != nil {
		t.Fatalf("store.New: %v", err)
	}
	t.Cleanup(func() { st.Close() })
	const secret = "correct-horse-battery-staple-9f2a"
	if err := st.SaveCustomerConfig(&store.CustomerConfig{
		CustomerID: "peti-felhom", CustomerName: "Peti", Domain: "sajatfelhom.hu",
		RetrievalPassword: secret, APIKey: "apikey-xyz", Status: "active",
	}); err != nil {
		t.Fatalf("SaveCustomerConfig: %v", err)
	}
	s := New(st, "", "", "test", time.Hour, log.New(io.Discard, "", 0))

	rr := httptest.NewRecorder()
	req := httptest.NewRequest("GET", "/configs/peti-felhom", nil)
	s.handleCustomerUnified(rr, req, "peti-felhom")
	if rr.Code != 200 {
		t.Fatalf("customer page status = %d", rr.Code)
	}
	html := rr.Body.String()

	// (a) the secret must NOT appear inside the Option-3 curl command (no X-Retrieval-Password: <secret>).
	if strings.Contains(html, "X-Retrieval-Password: "+secret) {
		t.Errorf("passphrase is baked into the Option-3 command (must be a placeholder)")
	}
	// The Option-3 command carries the placeholder instead.
	if !strings.Contains(html, "YOUR-RETRIEVAL-PASSWORD") {
		t.Errorf("Option-3 command missing the passphrase placeholder")
	}
	// (b) the visible retrieval-pw node is masked by default (bullets), not the cleartext value.
	if !strings.Contains(html, `id="retrieval-pw"`) {
		t.Fatalf("retrieval-pw node missing")
	}
	// the reveal control + copy-secret wiring must be present (the value lives in data-secret).
	if !strings.Contains(html, `onclick="toggleSecret('retrieval-pw')"`) ||
		!strings.Contains(html, `onclick="copySecret('retrieval-pw')"`) {
		t.Errorf("reveal/copy-secret controls missing")
	}
	if !strings.Contains(html, `data-secret="`+secret+`"`) {
		t.Errorf("data-secret not populated for the reveal control")
	}
	// the DEFAULT visible masked text is a run of bullet entities; the raw secret is only in
	// data-secret, never the code node's visible text content.
	i := strings.Index(html, `id="retrieval-pw"`)
	codeText := html[i : strings.Index(html[i:], "</code>")+i]
	if !strings.Contains(codeText, "&#x2022;&#x2022;&#x2022;") {
		t.Errorf("retrieval-pw is not masked by default (no bullet-entity run)")
	}
	if strings.Contains(codeText[strings.Index(codeText, ">")+1:], secret) {
		t.Errorf("raw secret is the retrieval-pw node's visible default text (must be masked)")
	}
}

// GL-7 Part 2/3: the install-command generator renders its control surface, targets the right
// script version, keeps a JS-off static fallback command, and NEVER offers the dangerous/operator-
// only flags as controls.
func TestTemplates_InstallGenerator(t *testing.T) {
	st, err := store.New(filepath.Join(t.TempDir(), "t.db"), log.New(io.Discard, "", 0))
	if err != nil {
		t.Fatalf("store.New: %v", err)
	}
	t.Cleanup(func() { st.Close() })
	if err := st.SaveCustomerConfig(&store.CustomerConfig{
		CustomerID: "peti-felhom", CustomerName: "Peti", Domain: "sajatfelhom.hu",
		RetrievalPassword: "pw", APIKey: "k", Status: "active",
	}); err != nil {
		t.Fatalf("SaveCustomerConfig: %v", err)
	}
	s := New(st, "", "", "test", time.Hour, log.New(io.Discard, "", 0))
	rr := httptest.NewRecorder()
	s.handleCustomerUnified(rr, httptest.NewRequest("GET", "/configs/peti-felhom", nil), "peti-felhom")
	if rr.Code != 200 {
		t.Fatalf("status = %d", rr.Code)
	}
	html := rr.Body.String()

	// control surface present (curated subset — all real v1.12.0 flags)
	for _, id := range []string{
		`name="gen-mode" value="appliance"`, `name="gen-mode" value="byo"`,
		`id="gen-cores"`, `id="gen-memory"`, `id="gen-vmid"`, `id="gen-node"`, `id="gen-acl"`,
		`id="gen-pubkey"`, `id="gen-preserve"`, `id="gen-dry"`, `id="gen-preflight"`,
		`id="gen-skip"`, `id="gen-leaf"`,
	} {
		if !strings.Contains(html, id) {
			t.Errorf("generator control missing: %s", id)
		}
	}
	// targets the right script version + carries the client-side customer id
	if !strings.Contains(html, hostInstallVersion) {
		t.Errorf("ScriptVersion %s not rendered", hostInstallVersion)
	}
	if !strings.Contains(html, `data-customer-id="peti-felhom"`) {
		t.Errorf("generator missing data-customer-id")
	}
	// JS-off static fallback: the Option-1/2 commands still show --customer-id + a mode placeholder
	if !strings.Contains(html, "--customer-id peti-felhom --mode") {
		t.Errorf("static fallback command missing customer-id + mode")
	}
	// the dangerous/operator-only flags are NEVER offered as generator controls
	for _, f := range []string{"--force", "--rotate-recovery", "--enable-oob", "--remove-golden",
		"--uninstall", "--adopt-pool", "--rescope-acl"} {
		if strings.Contains(html, f) {
			t.Errorf("excluded flag %s must not appear on the customer page", f)
		}
	}
}