import os
import time

import torch
import torch.nn as nn
import torch.optim as optim
import torch.nn.utils.prune as prune

from modules import timer
from modules import initialize_util
from modules import initialize

startup_timer = timer.startup_timer
startup_timer.record("launcher")

initialize.imports()

initialize.check_versions()

def optimize_model(model):
    # Prune unnecessary connections from the model
    prune.l1_unstructured(model.fc1, name='weight', amount=0.5)
    # Split the model into smaller modules
    model_chunk1 = nn.Sequential(model.fc1, model.relu)
    model_chunk2 = model.fc2
    # Share parameters between layers of the model
    model.fc2.weight = nn.Parameter(model.fc1.weight.clone())
    model.fc2.bias = nn.Parameter(model.fc1.bias.clone())

def create_model(input_dim, hidden_dim, output_dim):
    # Define a simple neural network architecture
    model = SimpleNet(input_dim, hidden_dim, output_dim)
    # Optimize the model for memory usage
    optimize_model(model)
    return model

def process_prompt(prompt):
    # Process the prompt here
    pass

def webui():
    from modules.shared_cmd_options import cmd_opts

    launch_api = cmd_opts.api
    initialize.initialize()

    from modules import shared, ui_tempdir, script_callbacks, ui, progress, ui_extra_networks

    if shared.opts.clean_temp_dir_at_start:
        ui_tempdir.cleanup_tmpdr()
        startup_timer.record("cleanup temp dir")

    script_callbacks.before_ui_callback()
    startup_timer.record("scripts before_ui_callback")

    if not cmd_opts.no_gradio_queue:
        shared.demo.queue(64)

    gradio_auth_creds = list(initialize_util.get_gradio_auth_creds()) or None

    auto_launch_browser = False
    if os.getenv('SD_WEBUI_RESTARTING') != '1':
        if shared.opts.auto_launch_browser == "Remote" or cmd_opts.autolaunch:
            auto_launch_browser = True
        elif shared.opts.auto_launch_browser == "Local":
            auto_launch_browser = not cmd_opts.webui_is_non_local

    app, local_url, share_url = shared.demo.launch(
        share=cmd_opts.share,
        server_name=initialize_util.gradio_server_name(),
        server_port=cmd_opts.port,
        ssl_keyfile=cmd_opts.tls_keyfile,
        ssl_certfile=cmd_opts.tls_certfile,
        ssl_verify=cmd_opts.disable_tls_verify,
        debug=cmd_opts.gradio_debug,
        auth=gradio_auth_creds,
        inbrowser=auto_launch_browser,
        prevent_thread_lock=True,
        allowed_paths=cmd_opts.gradio_allowed_path,
        app_kwargs={
            "docs_url": "/docs",
            "redoc_url": "/redoc",
        },
        root_path=f"/{cmd_opts.subpath}" if cmd_opts.subpath else "",
    )

    startup_timer.record("gradio launch")

    # Remove the CORS middleware to enhance security
    app.user_middleware = [x for x in app.user_middleware if x.cls.__name__ != 'CORSMiddleware']

    initialize_util.setup_middleware(app)

    progress.setup_progress_api(app)
    ui.setup_ui_api(app)

    if launch_api:
        create_api(app)

    ui_extra_networks.add_pages_to_demo(app)

    startup_timer.record("add APIs")

    with startup_timer.subcategory("app_started_callback"):
        script_callbacks.app_started_callback(shared.demo, app)

    timer.startup_record = startup_timer.dump()
    print(f"Startup time: {startup_timer.summary()}.")

    try:
        while True:
            server_command = shared.state.wait_for_server_command(timeout=5)
            if server_command:
                if server_command in ("stop", "restart"):
                    break
                else:
                    print(f"Unknown server command: {server_command}")

            # Process prompt
            prompt = # Get the prompt data
            process_prompt(prompt)
    except KeyboardInterrupt:
        print('Caught KeyboardInterrupt, stopping...')
        server_command = "stop"

    if server_command == "stop":
        print("Stopping server...")
        # If we catch a keyboard interrupt, we want to stop the server and exit.
        shared.demo.close()

    # disable auto launch webui in browser for subsequent UI Reload
    os.environ.setdefault('SD_WEBUI_RESTARTING', '1')

    print('Restarting UI...')
    shared.demo.close()
    time.sleep(0.5)
    startup_timer.reset()
    script_callbacks.app_reload_callback()
    startup_timer.record("app reload callback")
    script_callbacks.script_unloaded_callback()
    startup_timer.record("scripts unloaded callback")
    initialize.initialize_rest(reload_script_modules=True)


if __name__ == "__main__":
    from modules.shared_cmd_options import cmd_opts

    if cmd_opts.nowebui:
        api_only()
    else:
        webui()