package monitor

import (
	"fmt"
	"testing"

	"gitea.dooplex.hu/admin/felhom-controller/internal/settings"
)

// TestStorageWarningWireTextIsFrozen — localisation slice 2 (R-557), scenario S6.
//
// `HealthReport.Warnings` is ON THE WIRE: report/builder.go copies it into `health.warnings`, the hub
// stores it and the operator reads it there. The rule for slice 2 is that nothing on the wire moves —
// so these five sentences may NOT become bundle keys the way a page's copy does, however English the
// household's dashboard is.
//
// The golden below was captured from this file at 736f54b49610, the base commit of v0.252.0, BEFORE
// any conversion. It is the measurement, not a restatement of the code: a rewording, a re-punctuation
// or a translation of any producer in checkStoragePaths fails here and prints both strings.
//
// What the DASHBOARD shows for these warnings follows the language by a different route — the kinds
// beside them (WarnKind*, internal, never on the wire) plus the parameters, so the page can render its
// own sentence without the wire text changing. See internal/web/alerts.go.
func TestStorageWarningWireTextIsFrozen(t *testing.T) {
	// A path that cannot exist, so os.Stat fails deterministically on any machine.
	const absent = "/felhom-test-does-not-exist/adat"

	cases := []struct {
		name string
		in   settings.StoragePath
		want []string
		kind []string
	}{
		{
			name: "disconnected",
			in:   settings.StoragePath{Path: "/mnt/hdd_1", Label: "Kulso HDD", Disconnected: true},
			want: []string{"Meghajtó leválasztva: Kulso HDD (/mnt/hdd_1)"},
			kind: []string{WarnKindStorageDisconnected},
		},
		{
			name: "unavailable",
			in:   settings.StoragePath{Path: absent, Label: "Adat"},
			want: []string{"Adattároló nem elérhető: " + absent},
			kind: []string{WarnKindStorageUnavailable},
		},
		{
			name: "decommissioned is silent",
			in:   settings.StoragePath{Path: absent, Decommissioned: true},
			want: nil,
			kind: nil,
		},
	}

	for _, tc := range cases {
		t.Run(tc.name, func(t *testing.T) {
			_, warnings, kinds := checkStoragePaths([]settings.StoragePath{tc.in})
			if len(warnings) != len(tc.want) {
				t.Fatalf("got %d warnings %q, want %d %q", len(warnings), warnings, len(tc.want), tc.want)
			}
			for i := range tc.want {
				if warnings[i] != tc.want[i] {
					t.Errorf("wire text moved:\n  got  %q\n  want %q", warnings[i], tc.want[i])
				}
				if kinds[i] != tc.kind[i] {
					t.Errorf("kind moved: got %q, want %q", kinds[i], tc.kind[i])
				}
			}
		})
	}
}

// TestStorageWarningFormatsAreFrozen pins the three producers the table above cannot reach on every
// machine — they need a real mount point and a real 91 %-full disk, and faking either would test the
// fake. It compares the CONSTANTS the producers use, so a translation fails here whatever the machine.
//
// The rendered form is compared too, not only the format string: a change from `%s` to `%v`, or a
// verb reordered with an explicit index, leaves the format literal looking similar and the sentence
// different.
func TestStorageWarningFormatsAreFrozen(t *testing.T) {
	cases := []struct {
		name, got, want string
	}{
		{"disconnected", fmt.Sprintf(warnFmtStorageDisconnected, "Kulso HDD", "/mnt/hdd_1"),
			"Meghajtó leválasztva: Kulso HDD (/mnt/hdd_1)"},
		{"unavailable", fmt.Sprintf(warnFmtStorageUnavailable, "/mnt/adat"),
			"Adattároló nem elérhető: /mnt/adat"},
		{"not separate", fmt.Sprintf(warnFmtStorageNotSeparate, "/mnt/adat"),
			"Az adattároló (/mnt/adat) nem külön meghajtón van — az adatok a rendszermeghajtóra íródnak"},
		{"usage high", fmt.Sprintf(warnFmtStorageUsageHigh, "/mnt/adat", 91.4),
			"Adattároló használat magas: /mnt/adat (91%)"},
		{"almost full", fmt.Sprintf(issueFmtStorageAlmostFull, "/mnt/adat", 96.0),
			"Adattároló majdnem megtelt: /mnt/adat (96%)"},
	}
	for _, tc := range cases {
		if tc.got != tc.want {
			t.Errorf("%s: wire text moved (slice 2 may not translate a sentence the hub reads)\n"+
				"  got  %q\n  want %q", tc.name, tc.got, tc.want)
		}
	}
}