package web

import (
	"encoding/json"
	"io"
	"log"
	"reflect"
	"strings"
	"testing"

	"gitea.dooplex.hu/admin/felhom-controller/internal/config"
	"gitea.dooplex.hu/admin/felhom-controller/internal/monitor"
	"gitea.dooplex.hu/admin/felhom-controller/internal/report"
)

// R-553 — the „your data is not on a separate drive" warning is shown quietly, inline under the
// storage bars on two pages. Which warning that is used to be decided by looking for „meghajtó" in
// the sentence; slice 2 translates it, and from that day the warning appears in the RED BANNER on
// every page of the dashboard instead — a household that changed nothing suddenly reads an alarm.
//
// RED-PROOF (REPORT): put the strings.Contains(w, "meghajtón"/"adattároló"/"meghajtó") test back in
// alerts.go and the TRANSLATED row below fails (Inline=false, no PageOnly).
func TestR553_DiskWarningPlacementSurvivesWordingChange(t *testing.T) {
	cases := []struct {
		name       string
		text, kind string
		wantInline bool
	}{
		{"as shipped", "Az adattároló (/mnt/hdd) nem külön meghajtón van — az adatok a rendszermeghajtóra íródnak",
			monitor.WarnKindStorageNotSeparate, true},
		{"TRANSLATED", "The data storage (/mnt/hdd) is not on a separate drive — the data is written to the system drive",
			monitor.WarnKindStorageNotSeparate, true},
		{"a CPU warning stays in the banner", "CPU usage high: 91%", "", false},
		{"a disconnected drive stays in the banner (its own alert covers it)",
			"Meghajtó leválasztva: Külső (/mnt/usb)", monitor.WarnKindStorageDisconnected, false},
		{"a warning that merely CONTAINS the old words is not moved",
			"A meghajtó ellenőrzése nem futott le", "", false},
	}
	for _, c := range cases {
		am := NewAlertManager(log.New(io.Discard, "", 0))
		hr := &monitor.HealthReport{Status: "warn", Warnings: []string{c.text}, WarningKinds: []string{c.kind}}
		cfg := &config.Config{}
		cfg.Hub.Enabled = false
		am.Refresh(hr, cfg, nil, false, "")
		var found *Alert
		for i, a := range am.GetAlerts("hu") {
			if a.Message == c.text {
				found = &am.GetAlerts("hu")[i]
			}
		}
		if found == nil {
			t.Fatalf("%s: the warning did not reach the alerts at all", c.name)
		}
		if found.Inline != c.wantInline {
			t.Errorf("%s: Inline = %v, want %v (message %q)", c.name, found.Inline, c.wantInline, c.text)
		}
		wantPages := 0
		if c.wantInline {
			wantPages = 2
		}
		if len(found.PageOnly) != wantPages {
			t.Errorf("%s: PageOnly = %v, want %d page(s)", c.name, found.PageOnly, wantPages)
		}
		if c.wantInline && (found.ID != "disk-not-separate" ||
			strings.Join(found.PageOnly, ",") != "dashboard,monitoring") {
			t.Errorf("%s: id/pages changed: %q %v", c.name, found.ID, found.PageOnly)
		}
	}
}

// THE WIRE IS SACRED — the kinds are an internal field and must not reach the hub. The report's
// health block is its own struct; this pins that it carries exactly three fields, their JSON names,
// and that a health report WITH kinds marshals to the same bytes as one without.
//
// RED-PROOF (REPORT): add `WarningKinds []string \`json:"warning_kinds"\“ to report.HealthReport and
// both halves fail.
func TestR553_HubReportWarningsAreUnchangedOnTheWire(t *testing.T) {
	rt := reflect.TypeOf(report.HealthReport{})
	var names []string
	for i := 0; i < rt.NumField(); i++ {
		names = append(names, rt.Field(i).Tag.Get("json"))
	}
	if got, want := strings.Join(names, ","), "status,issues,warnings"; got != want {
		t.Errorf("the hub's health block changed shape: %q, want %q", got, want)
	}
	// The same warnings, one report built the way builder.go builds it (Status/Issues/Warnings only).
	src := &monitor.HealthReport{
		Status:       "warn",
		Issues:       []string{},
		Warnings:     []string{"CPU usage high: 91%", "Az adattároló (/mnt/hdd) nem külön meghajtón van"},
		WarningKinds: []string{"", monitor.WarnKindStorageNotSeparate},
	}
	wire := report.HealthReport{Status: src.Status, Issues: src.Issues, Warnings: src.Warnings}
	b, err := json.Marshal(wire)
	if err != nil {
		t.Fatal(err)
	}
	const want = `{"status":"warn","issues":[],"warnings":["CPU usage high: 91%","Az adattároló (/mnt/hdd) nem külön meghajtón van"]}`
	if string(b) != want {
		t.Errorf("the hub report's health bytes CHANGED:\n got %s\nwant %s", b, want)
	}
	if strings.Contains(string(b), "kind") {
		t.Error("a warning KIND reached the wire — the hub contract gained a field nobody agreed to")
	}
}