package xigmanas

import (
	"os"
	"path/filepath"
	"strings"
	"testing"

	"git.mchus.pro/mchus/logpile/internal/parser"
)

func TestParserDetect(t *testing.T) {
	p := &Parser{}

	files := []parser.ExtractedFile{
		{
			Path: "xigmanas",
			Content: []byte(`Version:
--------
14.3.0.5
loader_brand="XigmaNAS"`),
		},
	}

	if got := p.Detect(files); got < 70 {
		t.Fatalf("expected high confidence, got %d", got)
	}

	files2 := []parser.ExtractedFile{
		{
			Path:    "random_file.txt",
			Content: []byte("Some random content"),
		},
	}

	if got := p.Detect(files2); got != 0 {
		t.Fatalf("expected zero confidence, got %d", got)
	}
}

func TestParserParseInlineDump(t *testing.T) {
	p := &Parser{}
	result, err := p.Parse([]parser.ExtractedFile{{Path: "diagnostic.txt", Content: []byte(`Version:
--------
14.3.0.5
smbios.bios.version="F.22"
smbios.system.maker="Acme"
smbios.system.product="NAS-1"
smbios.system.serial="SN-1"
smbios.system.uuid="uuid-1"
FreeBSD/SMP: 1 package(s) x 4 core(s)
CPU: AMD Ryzen 5 3600 (3600.00-MHz)
CPU: AMD Ryzen 5 3600 (3600.00-MHz)
real memory = 8589934592 (8192 MB)
10:10AM up 2 days, 3 users, load averages: 0.10, 0.20, 0.30
state: DEGRADED
<WDC WD10EZEX 1.01> at scbus0 target 0 lun 0 (da0,pass0)
S.M.A.R.T. [/dev/da0]:
--------
Device Model: WDC WD10EZEX
Serial Number: DISK-1
Firmware Version: 1.01
User Capacity: 1,000,000,000 bytes
SMART overall-health self-assessment test result: FAILED
194 Temperature_Celsius     0x0022   100   100   000    Old_age   Always       -       41
Last 275 System log entries:
--------
2026-01-02T03:04:05+00:00 host kernel: fatal disk error
Last 275 SMARTD log entries:
--------
Jan  2 03:04:05 host smartd: warning temperature
Last 275 Daemon log entries:
--------
plain informational line
`)}})
	if err != nil {
		t.Fatalf("Parse: %v", err)
	}
	if result.Hardware.BoardInfo.ProductName != "NAS-1" || len(result.Hardware.Firmware) != 2 {
		t.Fatalf("unexpected board or firmware: %+v / %+v", result.Hardware.BoardInfo, result.Hardware.Firmware)
	}
	if len(result.Hardware.CPUs) != 1 || result.Hardware.CPUs[0].Cores != 4 {
		t.Fatalf("unexpected CPUs: %+v", result.Hardware.CPUs)
	}
	if len(result.Hardware.Memory) != 1 || result.Hardware.Memory[0].SizeMB != 8192 {
		t.Fatalf("unexpected memory: %+v", result.Hardware.Memory)
	}
	if len(result.Hardware.Storage) != 1 || result.Hardware.Storage[0].SizeGB != 1 || result.Hardware.Storage[0].SerialNumber != "DISK-1" {
		t.Fatalf("unexpected storage: %+v", result.Hardware.Storage)
	}
	if len(result.Sensors) != 1 || result.Sensors[0].Status != "warning" {
		t.Fatalf("unexpected sensors: %+v", result.Sensors)
	}
	if len(result.Events) != 6 {
		t.Fatalf("expected uptime, ZFS, SMART, and three log events, got %+v", result.Events)
	}
}

func TestXigmaNASHelpers(t *testing.T) {
	if model, fw := splitModelAndFirmware("disk model 1.00"); model != "disk model" || fw != "1.00" {
		t.Fatalf("splitModelAndFirmware = %q, %q", model, fw)
	}
	if got := guessStorageType("cd0"); got != "optical" {
		t.Fatalf("optical type = %q", got)
	}
	if got := guessStorageType("ada0"); got != "hdd" {
		t.Fatalf("HDD type = %q", got)
	}
	if got := parseCapacityBytes("invalid"); got != 0 {
		t.Fatalf("invalid capacity = %d", got)
	}
	if got := classifyEventSeverity("all good"); got != "info" {
		t.Fatalf("info severity = %q", got)
	}
	if got := classifyEventSeverity("kernel panic"); got != "critical" {
		t.Fatalf("critical severity = %q", got)
	}
	if got := extractSyslogMessage("a: message"); got != "message" {
		t.Fatalf("syslog message = %q", got)
	}
}

func TestParserParseExample(t *testing.T) {
	p := &Parser{}

	examplePath := filepath.Join("..", "..", "..", "..", "example", "xigmanas.txt")
	raw, err := os.ReadFile(examplePath)
	if err != nil {
		if os.IsNotExist(err) {
			t.Skipf("example file %s not present", examplePath)
		}
		t.Fatalf("read example file: %v", err)
	}

	files := []parser.ExtractedFile{
		{Path: "xigmanas", Content: raw},
	}

	result, err := p.Parse(files)
	if err != nil {
		t.Fatalf("parse failed: %v", err)
	}
	if result == nil || result.Hardware == nil {
		t.Fatal("expected non-nil result with hardware")
	}

	if len(result.Hardware.Firmware) == 0 {
		t.Fatal("expected firmware data")
	}
	foundXigmaVersion := false
	for _, fw := range result.Hardware.Firmware {
		if fw.DeviceName == "XigmaNAS" && fw.Version == "14.3.0.5" {
			foundXigmaVersion = true
		}
	}
	if !foundXigmaVersion {
		t.Fatalf("expected XigmaNAS firmware version 14.3.0.5, got %+v", result.Hardware.Firmware)
	}

	if result.Hardware.BoardInfo.Manufacturer != "HP" {
		t.Fatalf("expected board manufacturer HP, got %q", result.Hardware.BoardInfo.Manufacturer)
	}
	if len(result.Hardware.CPUs) == 0 {
		t.Fatal("expected at least one CPU")
	}
	if !strings.Contains(strings.ToLower(result.Hardware.CPUs[0].Model), "athlon") {
		t.Fatalf("expected CPU model to contain athlon, got %q", result.Hardware.CPUs[0].Model)
	}

	if len(result.Hardware.Storage) < 4 {
		t.Fatalf("expected at least 4 storage devices, got %d", len(result.Hardware.Storage))
	}
	if len(result.Sensors) == 0 {
		t.Fatal("expected SMART temperature sensors")
	}
	if len(result.Events) == 0 {
		t.Fatal("expected events from uptime/zfs sections")
	}

	var hasSystemLog, hasSmartdLog, hasDaemonLog, hasLoginFailure bool
	for _, ev := range result.Events {
		if ev.EventType == "System Log" {
			hasSystemLog = true
		}
		if ev.EventType == "SMARTD Log" {
			hasSmartdLog = true
		}
		if ev.EventType == "Daemon Log" {
			hasDaemonLog = true
		}
		if strings.Contains(strings.ToLower(ev.Description), "login failure") {
			hasLoginFailure = true
		}
	}
	if !hasSystemLog || !hasSmartdLog || !hasDaemonLog {
		t.Fatalf("expected events from System/SMARTD/Daemon sections, got system=%v smartd=%v daemon=%v", hasSystemLog, hasSmartdLog, hasDaemonLog)
	}
	if !hasLoginFailure {
		t.Fatal("expected to parse login failure event from system log section")
	}
}