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sigma13
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print("STARTED")

import gradio as gr
import requests, os, time, threading, subprocess, shutil, tarfile, urllib.request
from huggingface_hub import hf_hub_download, upload_file

# ========================
# PATHS
# ========================
ROOT_DIR = os.path.dirname(os.path.abspath(__file__))
BASE_DIR = os.path.join(ROOT_DIR, "minecraft_server")

os.makedirs(BASE_DIR, exist_ok=True)

WORLD_PATH = os.path.join(BASE_DIR, "world")
NETHER_PATH = os.path.join(BASE_DIR, "world_nether")
END_PATH = os.path.join(BASE_DIR, "world_the_end")

# ========================
# ENV
# ========================
HF_TOKEN = os.environ.get("HF_TOKEN", "")
PLAYIT_AUTH_KEY = os.environ.get("PLAYIT_AUTH_KEY", "")

HF_REPO_ID = "Dalleon/McSaves"

# ========================
# GLOBALS
# ========================
SERVER_PROCESS = None
TCP_PROCESS = None
PUBLIC_TCP = None
SERVER_ONLINE = False

# ========================
# DOWNLOAD PAPER (1.20.6)
# ========================
def download_paper():
    jar_path = os.path.join(BASE_DIR, "server.jar")

    if os.path.exists(jar_path):
        print("[PAPER] already exists")
        return

    print("[PAPER] downloading 1.20.6...")
    url = "https://api.papermc.io/v2/projects/paper/versions/1.20.6/builds/latest/downloads/paper-1.20.6-latest.jar"
    urllib.request.urlretrieve(url, jar_path)

# ========================
# READ OUTPUT
# ========================
def read_output():
    global SERVER_PROCESS
    while True:
        if SERVER_PROCESS and SERVER_PROCESS.stdout:
            line = SERVER_PROCESS.stdout.readline()
            if line:
                print("[MC]", line.strip())
        time.sleep(0.1)

# ========================
# LOAD WORLD
# ========================
def load_world():
    try:
        file_path = hf_hub_download(
            repo_id=HF_REPO_ID,
            filename="world.tar.gz",
            token=HF_TOKEN
        )
    except:
        print("[LOAD] no backup")
        return

    if os.path.exists(WORLD_PATH):
        shutil.rmtree(WORLD_PATH)

    with tarfile.open(file_path, "r:gz") as tar:
        tar.extractall(BASE_DIR)

# ========================
# PLAYIT
# ========================
def start_tcp():
    global PUBLIC_TCP, SERVER_ONLINE, TCP_PROCESS

    path = os.path.join(BASE_DIR, "playit")

    if not os.path.exists(path):
        print("[PLAYIT] downloading...")
        urllib.request.urlretrieve(
            "https://github.com/playit-cloud/playit-agent/releases/latest/download/playit-linux-amd64",
            path
        )
        os.chmod(path, 0o755)

    TCP_PROCESS = subprocess.Popen(
        [path, "--secret", PLAYIT_AUTH_KEY],
        cwd=BASE_DIR,
        stdout=subprocess.PIPE,
        stderr=subprocess.STDOUT,
        text=True
    )

    timeout = time.time() + 20

    while time.time() < timeout:
        line = TCP_PROCESS.stdout.readline()
        if line:
            print("[PLAYIT]", line.strip())

            if "playit.gg" in line:
                for part in line.split():
                    if "playit.gg" in part:
                        PUBLIC_TCP = part
                        break

        if PUBLIC_TCP:
            break

    SERVER_ONLINE = True
    print("[PLAYIT] address:", PUBLIC_TCP)

# ========================
# START SERVER
# ========================
def start_server():
    global SERVER_PROCESS

    print("[SERVER] starting...")

    load_world()
    download_paper()

    # accept eula
    with open(os.path.join(BASE_DIR, "eula.txt"), "w") as f:
        f.write("eula=true")

    SERVER_PROCESS = subprocess.Popen(
        [
            "java",
            "-Xms512M",
            "-Xmx1G",
            "-jar",
            "server.jar",
            "--nogui"
        ],
        cwd=BASE_DIR,
        stdin=subprocess.PIPE,
        stdout=subprocess.PIPE,
        stderr=subprocess.STDOUT,
        text=True
    )

    threading.Thread(target=read_output, daemon=True).start()

    time.sleep(5)
    start_tcp()

# ========================
# START BUTTON HANDLER
# ========================
def start_background():
    threading.Thread(target=start_server, daemon=True).start()
    return "Starting server..."

# ========================
# GET ADDRESS
# ========================
def get_address():
    if not SERVER_ONLINE:
        return "Starting..."
    return PUBLIC_TCP or "No address yet"

# ========================
# UI
# ========================
with gr.Blocks() as app:
    gr.Markdown("## ⛏️ Minecraft Server")

    start_btn = gr.Button("Start Server")
    status = gr.Textbox(label="Status")

    addr_btn = gr.Button("Get Address")
    address = gr.Textbox(label="Server Address")

    start_btn.click(fn=start_background, outputs=status)
    addr_btn.click(fn=get_address, outputs=address)

app.launch()