package minecraft

import (
	"fmt"
	"io"
	"net/http"
	"os"
	"path/filepath"

	"zlh-agent/internal/state"
	"zlh-agent/internal/provcommon"
)

func InstallMinecraftVanilla(cfg state.Config) error {
    dir := provcommon.ServerDir(cfg)
    if err := os.MkdirAll(dir, 0o755); err != nil {
        return fmt.Errorf("mkdir server dir: %w", err)
    }

    url := provcommon.BuildArtifactURL(cfg.ArtifactPath)
    dest := filepath.Join(dir, "server.jar")

    resp, err := http.Get(url)
    if err != nil {
        return fmt.Errorf("download vanilla: %w", err)
    }
    defer resp.Body.Close()

    if resp.StatusCode != http.StatusOK {
        return fmt.Errorf("bad status %s", resp.Status)
    }

    out, err := os.Create(dest)
    if err != nil {
        return fmt.Errorf("create server.jar: %w", err)
    }
    defer out.Close()

    if _, err := io.Copy(out, resp.Body); err != nil {
        return fmt.Errorf("write server.jar: %w", err)
    }

    // 🔹 NEW: verify + self-repair (java, server.jar, start.sh, etc.)
    if err := VerifyMinecraftInstallWithRepair(cfg); err != nil {
        return fmt.Errorf("vanilla install verification failed: %w", err)
    }

    return nil
}