import minecraft_launcher_lib
import subprocess
import os

# --- PROGRESS BAR CALLBACKS ---
current_max = 0

def set_status(status: str):
    if status: print(f"{status}")

def set_progress(progress: int):
    if current_max != 0:
        percentage = int((progress / current_max) * 100)
        print(f"- Progress: [{percentage}%] {progress}/{current_max} files", end="\r")

def set_max(new_max: int):
    global current_max
    current_max = new_max

def list_local_versions(dir):
    print("\nExisting Versions")
    if not os.path.exists(dir):
        print("[None]")
        return
    local = minecraft_launcher_lib.utils.get_installed_versions(dir)
    if not local:
        print("[None]")
    else:
        for v in local:
            print(f" - {v['id']}")

# --- FIXED DIRECTORY LOGIC ---
# This forces the folder to be in your 'P7MC' folder on the Desktop
script_dir = os.path.dirname(os.path.abspath(__file__))
minecraft_directory = os.path.join(script_dir, "minecraft")

# Create the folder immediately so you can see it in VSCode
os.makedirs(minecraft_directory, exist_ok=True)

while True:
    try:
        print("\n" + "=" * 40)
        print("P7MC - P7MJ's MC Launcher")
        print(f"Path: {minecraft_directory}") # Debug line to show you the location
        print("=" * 40)
        choice = input("[1] Launch\n[2] Install\n[f] Open Folder\n[h] Help (For common errors)\n[e] Exit\n > ").strip().lower()

        if choice == "e":
            break
        
        # Opens the folder in File Explorer for you
        if choice == "f":
            os.startfile(minecraft_directory)
            continue

        # --- INSTALLATION FLOW ---
        if choice == "2":
            list_local_versions(minecraft_directory)
            print("Type a version, or \"latest\" for the latest release.")
            version = input("Version > ").strip()
            
            if version.lower() == "latest":
                version = minecraft_launcher_lib.utils.get_latest_version()["release"]

            callback = {"setStatus": set_status, "setProgress": set_progress, "setMax": set_max}
            print(f"[*] Downloading and installing {version}...")
            minecraft_launcher_lib.install.install_minecraft_version(version, minecraft_directory, callback=callback)
            print("\nInstall complete!")

        # --- LAUNCH FLOW ---
        elif choice == "1":
            list_local_versions(minecraft_directory)
            version = input("Version > ").strip()
            
            # GET THE LOCAL VERSIONS LIST
            local_versions = minecraft_launcher_lib.utils.get_installed_versions(minecraft_directory)
            # CHECK IF THE TYPED VERSION IS IN THAT LIST
            is_installed = any(v['id'] == version for v in local_versions)

            if not is_installed:
                print(f"[!] Error: {version} not found in local folder. Please install it first.")
                continue

            username = input("Username > ").strip()
            
            options = {
                "username": username,
                "uuid": "00000000-0000-0000-0000-000000000000",
                "token": "offline",
            }

            print(f"Launching {version}...")
            minecraft_command = minecraft_launcher_lib.command.get_minecraft_command(version, minecraft_directory, options)
            subprocess.run(minecraft_command)
            print("\nGame closed.")

        elif choice == "h":
            print("\nHELP")
            print("1. To delete versions, open the folder and manually delete it.")
            print("2. Use the open folder function to find your installs.")
            print("3. If in any case the download terminates prematurely, just install the same version again! It will automatically check what files are already there, do an integrity check, and finish it for you.")
            
        else:
            print("Invalid choice. Please type \"1\", \"2\", \"f\", \"h\", or \"e\".")

    except Exception as e:
        print(f"\n[!] Error: {e}")

print("Launcher closed.")