import os
import time
import gradio as gr
import roop.globals
import roop.metadata
import roop.utilities as util
import ui.globals as uii

from ui.tabs.faceswap_tab import faceswap_tab
from ui.tabs.livecam_tab import livecam_tab
from ui.tabs.facemgr_tab import facemgr_tab
from ui.tabs.extras_tab import extras_tab
from ui.tabs.settings_tab import settings_tab

roop.globals.keep_fps = None
roop.globals.keep_frames = None
roop.globals.skip_audio = None
roop.globals.use_batch = None


def prepare_environment():
    roop.globals.output_path = os.path.abspath(os.path.join(os.getcwd(), "output"))
    os.makedirs(roop.globals.output_path, exist_ok=True)
    if not roop.globals.CFG.use_os_temp_folder:
        os.environ["TEMP"] = os.environ["TMP"] = os.path.abspath(os.path.join(os.getcwd(), "temp"))
    os.makedirs(os.environ["TEMP"], exist_ok=True)
    os.environ["GRADIO_TEMP_DIR"] = os.environ["TEMP"]


def run():
    from roop.core import decode_execution_providers, set_display_ui

    prepare_environment()

    set_display_ui(show_msg)
    roop.globals.execution_providers = decode_execution_providers([roop.globals.CFG.provider])
    print(f'Using provider {roop.globals.execution_providers} - Device:{util.get_device()}')    
    
    run_server = True
    uii.ui_restart_server = False
    mycss = """
        span {color: var(--block-info-text-color)}
        #fixedheight {
            max-height: 238.4px;
            overflow-y: auto !important;
        }
"""
    uii.ui_live_cam_active = roop.globals.CFG.live_cam_start_active

    while run_server:
        server_name = roop.globals.CFG.server_name
        if server_name is None or len(server_name) < 1:
            server_name = None
        server_port = roop.globals.CFG.server_port
        if server_port <= 0:
            server_port = None
        ssl_verify = False if server_name == '127.0.0.1' else True
        with gr.Blocks(title=f'{roop.metadata.name} {roop.metadata.version}', theme=roop.globals.CFG.selected_theme, css=mycss) as ui:
            with gr.Row(variant='compact'):
                    gr.Markdown(f"### [{roop.metadata.name} {roop.metadata.version}](https://github.com/C0untFloyd/roop-unleashed)")
                    gr.HTML(util.create_version_html(), elem_id="versions")
            faceswap_tab()
            livecam_tab()
            facemgr_tab()
            extras_tab()
            settings_tab()

        uii.ui_restart_server = False
        try:
            ui.queue().launch(inbrowser=True, server_name=server_name, server_port=server_port, prevent_thread_lock=True, show_error=True)
        except Exception as e:
            print(f'Exception {e} when launching Gradio Server!')
            uii.ui_restart_server = True
            run_server = False
        try:
            while uii.ui_restart_server == False:
                time.sleep(1.0)
        except (KeyboardInterrupt, OSError):
            print("Keyboard interruption in main thread... closing server.")
            run_server = False
        ui.close()


def show_msg(msg: str):
    gr.Info(msg)