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import gradio as gr
from shared.utils.plugins import WAN2GPPlugin
import json
from shared.deepy.engine import get_or_create_assistant_session
from shared.gradio import assistant_chat
from shared.deepy.config import (
    DEEPY_CONTEXT_TOKENS_DEFAULT,
    DEEPY_CONTEXT_TOKENS_KEY,
    DEEPY_CUSTOM_SYSTEM_PROMPT_KEY,
    DEEPY_ENABLED_KEY,
    DEEPY_VRAM_MODE_KEY,
    DEEPY_VRAM_MODE_ALWAYS_LOADED,
    DEEPY_VRAM_MODE_UNLOAD,
    DEEPY_VRAM_MODE_UNLOAD_ON_REQUEST,
    deepy_available,
    format_deepy_context_tokens_label,
    deepy_requirement_message,
    normalize_deepy_context_tokens,
    normalize_deepy_custom_system_prompt,
    normalize_deepy_enabled,
    normalize_deepy_vram_mode,
    set_deepy_runtime_config,
)

class ConfigTabPlugin(WAN2GPPlugin):
    def __init__(self):
        super().__init__()
        self.name = "Configuration Tab"
        self.version = "1.1.0"
        self.description = "Lets you adjust all your performance and UI options for WAN2GP"

    def setup_ui(self):
        self.request_global("args")
        self.request_global("server_config")
        self.request_global("server_config_filename")
        self.request_global("attention_mode")
        self.request_global("compile")
        self.request_global("default_profile_video")
        self.request_global("default_profile_image")
        self.request_global("default_profile_audio")
        self.request_global("vae_config")
        self.request_global("boost")
        self.request_global("enable_int8_kernels")
        self.request_global("preload_model_policy")
        self.request_global("transformer_quantization")
        self.request_global("transformer_dtype_policy")
        self.request_global("transformer_types")
        self.request_global("text_encoder_quantization")
        self.request_global("attention_modes_installed")
        self.request_global("attention_modes_supported")
        self.request_global("displayed_model_types")
        self.request_global("memory_profile_choices")
        self.request_global("attention_modes_choices")
        self.request_global("save_path")
        self.request_global("image_save_path")
        self.request_global("audio_save_path")
        self.request_global("quit_application")
        self.request_global("release_model")
        self.request_global("get_sorted_dropdown")
        self.request_global("app")
        self.request_global("fl")
        self.request_global("is_generation_in_progress")
        self.request_global("generate_header")
        self.request_global("generate_dropdown_model_list")
        self.request_global("get_unique_id")
        self.request_global("reset_prompt_enhancer")
        self.request_global("reset_prompt_enhancer_if_requested")
        self.request_global("release_deepy_vram")
        self.request_global("any_GPU_process_running")
        self.request_global("apply_int8_kernel_setting")

        self.request_component("model_description")
        self.request_component("header")
        self.request_component("model_family")
        self.request_component("model_base_type_choice")
        self.request_component("model_choice")
        self.request_component("refresh_form_trigger")      
        self.request_component("state")
        self.request_component("resolution")
        self.request_component("assistant_launcher_host")
        self.request_component("assistant_panel")

        self.add_tab(
            tab_id="configuration",
            label="Configuration",
            component_constructor=self.create_config_ui,
        )

    def create_config_ui(self):
        set_deepy_runtime_config(self.server_config, self.server_config_filename)
        with gr.Column():
            with gr.Tabs():
                with gr.Tab("General"):
                    _, _, dropdown_choices = self.get_sorted_dropdown(self.displayed_model_types, None, None, False)

                    self.transformer_types_choices = gr.Dropdown(
                        choices=dropdown_choices, value=self.transformer_types,
                        label="Selectable Generative Models (leave empty for all)", multiselect=True
                    )
                    self.model_hierarchy_type_choice = gr.Dropdown(
                        choices=[
                            ("Two Levels: Model Family > Models & Finetunes", 0),
                            ("Three Levels: Model Family > Models > Finetunes", 1),
                        ],
                        value=self.server_config.get("model_hierarchy_type", 1),
                        label="Models Hierarchy In User Interface",
                        interactive=not self.args.lock_config
                    )
                    self.fit_canvas_choice = gr.Dropdown(
                        choices=[
                            ("Dimensions are Pixel Budget (preserves aspect ratio, may exceed dimensions)", 0),
                            ("Dimensions are Max Width/Height (preserves aspect ratio, fits within box)", 1),
                            ("Dimensions are Exact Output (crops input to fit exact dimensions)", 2),
                        ],
                        value=self.server_config.get("fit_canvas", 0),
                        label="Input Image/Video Sizing Behavior",
                        interactive=not self.args.lock_config
                    )

                    self.attention_choice = gr.Dropdown(
                        choices=self.attention_modes_choices,
                        value=self.attention_mode, label="Attention Type", interactive=not self.args.lock_config
                    )
                    self.preload_model_policy_choice = gr.CheckboxGroup(
                        [("Preload Model on App Launch","P"), ("Preload Model on Switch", "S"), ("Unload Model when Queue is Done", "U")],
                        value=self.preload_model_policy, label="Model Loading/Unloading Policy"
                    )
                    self.clear_file_list_choice = gr.Dropdown(
                        choices=[("None", 0), ("Keep last video", 1), ("Keep last 5 videos", 5), ("Keep last 10", 10), ("Keep last 20", 20), ("Keep last 30", 30)],
                        value=self.server_config.get("clear_file_list", 5), label="Keep Previous Generations in Gallery"
                    )
                    self.display_stats_choice = gr.Dropdown(
                        choices=[("Disabled", 0), ("Enabled", 1)],
                        value=self.server_config.get("display_stats", 0), label="Display real-time RAM/VRAM stats (requires restart)"
                    )
                    self.max_frames_multiplier_choice = gr.Dropdown(
                        choices=[("Default", 1), ("x2", 2), ("x3", 3), ("x4", 4), ("x5", 5), ("x6", 6), ("x7", 7)],
                        value=self.server_config.get("max_frames_multiplier", 1), label="Max Frames / Duration Multiplier (requires restart)"
                    )
                    self.enable_4k_resolutions_choice = gr.Dropdown(
                        choices=[("Off", 0), ("On", 1)],
                        value=self.server_config.get("enable_4k_resolutions", 0),
                        label="3K/4K Resolutions"
                    )
                    default_paths = self.fl.default_checkpoints_paths
                    checkpoints_paths_text = "\n".join(self.server_config.get("checkpoints_paths", default_paths))
                    self.checkpoints_paths_choice = gr.Textbox(
                        label="Model Checkpoint Folders (One Path per Line. First is Default Download Path)",
                        value=checkpoints_paths_text,
                        lines=3,
                        interactive=not self.args.lock_config
                    )
                    self.loras_root_choice = gr.Textbox(
                        label="Loras Root Folder",
                        value=self.server_config.get("loras_root", "loras"),
                        interactive=not self.args.lock_config
                    )
                    self.save_queue_if_crash_choice = gr.Dropdown(
                        choices=[("Disabled", 0), ("Overwrite Last Error Queue", 1), ("Create a New Error Queue File", 2)],
                        value=self.server_config.get("save_queue_if_crash", 1),
                        label="Save Queue if Crash during Generation",
                        interactive=not self.args.lock_config
                    )
                    self.UI_theme_choice = gr.Dropdown(
                        choices=[("Blue Sky (Default)", "default"), ("Classic Gradio", "gradio")],
                        value=self.server_config.get("UI_theme", "default"), label="UI Theme (requires restart)"
                    )
                    self.queue_color_scheme_choice = gr.Dropdown(
                        choices=[
                            ("Pastel (Unique color for each item)", "pastel"),
                            ("Alternating Grey Shades", "alternating_grey"),
                        ],
                        value=self.server_config.get("queue_color_scheme", "pastel"),
                        label="Queue Color Scheme"
                    )

                with gr.Tab("Performance"):
                    self.quantization_choice = gr.Dropdown(choices=[("Scaled Int8 (recommended)", "int8"), ("Scaled Fp8", "fp8"), ("16-bit (no quantization)", "bf16")], value=self.transformer_quantization, label="Transformer Model Quantization (if available otherwise get the closest available)")
                    self.transformer_dtype_policy_choice = gr.Dropdown(choices=[("Auto (Best for Hardware)", ""), ("FP16", "fp16"), ("BF16", "bf16")], value=self.transformer_dtype_policy, label="Transformer Data Type (if available)")
                    self.mixed_precision_choice = gr.Dropdown(choices=[("16-bit only (less VRAM)", "0"), ("Mixed 16/32-bit (better quality)", "1")], value=self.server_config.get("mixed_precision", "0"), label="Transformer Engine Precision")
                    self.text_encoder_quantization_choice = gr.Dropdown(choices=[("16-bit (more RAM, better quality)", "bf16"), ("8-bit (less RAM, slightly lower quality)", "int8")], value=self.text_encoder_quantization, label="Text Encoder Quantization")
                    self.lm_decoder_engine_choice = gr.Dropdown(
                        choices=[
                            ("Auto", ""),
                            ("PyTorch: slow, compatible", "legacy"),
                            ("Cuda Graph: up to x6 faster, whole LM will be loaded in VRAM", "cg"),
                            ("vllm: up to x10 faster, whole LM will be loaded in VRAM, requires Triton & Flash Attention 2", "vllm"),
                        ],
                        value=self.server_config.get("lm_decoder_engine", ""),
                        label="Language Models Decoder Engine (when available for a model)",
                    )
                    self.VAE_precision_choice = gr.Dropdown(choices=[("16-bit (faster, less VRAM)", "16"), ("32-bit (slower, better for sliding window)", "32")], value=self.server_config.get("vae_precision", "16"), label="VAE Encoding/Decoding Precision")
                    self.compile_choice = gr.Dropdown(choices=[("On (up to 20% faster, requires Triton)", "transformer"), ("Off", "")], value=self.compile, label="Compile Transformer Model (slight speed again, but first generation is slower and potential compatibility issues with some GPUs/Models)", interactive=not self.args.lock_config)
                    self.depth_anything_v2_variant_choice = gr.Dropdown(choices=[("Large (more precise, slower)", "vitl"), ("Big (less precise, faster)", "vitb")], value=self.server_config.get("depth_anything_v2_variant", "vitl"), label="Depth Anything v2 VACE Preprocessor")
                    vae_config_value = self.vae_config if self.vae_config in [0, 1, 2, 3] else 0
                    self.vae_config_choice = gr.Dropdown(
                        choices=[
                            ("Auto", 0),
                            ("Spatial / Temporal Tiling Preset for 16GB+", 1),
                            ("Spatial / Temporal Tiling Preset for 8GB+", 2),
                            ("Spatial / Temporal Tiling Preset for 6GB+", 3),
                        ],
                        value=vae_config_value,
                        label="VAE Tiling (higher presets use less VRAM and may increase artifacts like banding)",
                    )
                    self.boost_choice = gr.Dropdown(choices=[("ON", 1), ("OFF", 2)], value=self.boost, label="Boost (~10% speedup for ~1GB VRAM)")
                    self.enable_int8_kernels_choice = gr.Dropdown(choices=[("Disabled", 0), ("Enabled if Triton available", 1)], value=self.server_config.get("enable_int8_kernels", 1), label="Int8 Kernels (Experimental, 10% faster with INT8 quantized checkpoints, requires Triton)")
                    self.video_profile_choice = gr.Dropdown(
                        choices=self.memory_profile_choices,
                        value=self.default_profile_video,
                        label="Default Memory Profile (Video)",
                    )
                    self.image_profile_choice = gr.Dropdown(
                        choices=self.memory_profile_choices,
                        value=self.default_profile_image,
                        label="Default Memory Profile (Image)",
                    )
                    self.audio_profile_choice = gr.Dropdown(
                        choices=self.memory_profile_choices,
                        value=self.default_profile_audio,
                        label="Default Memory Profile (Audio)",
                    )
                    self.preload_in_VRAM_choice = gr.Slider(0, 40000, value=self.server_config.get("preload_in_VRAM", 0), step=100, label="VRAM (MB) for Preloaded Models (0=profile default)")
                    self.max_reserved_loras_choice = gr.Slider(
                        -1,
                        10000,
                        value=self.server_config.get("max_reserved_loras", -1),
                        step=1,
                        label="Max Amount of Loras (in MB) to be Pinned To Reserved Memory (set it to 0-500MB if Out of Memory when starting Gen, -1= No limit)"
                    )
                    self.release_RAM_btn = gr.Button("Force Unload Models from RAM")

                with gr.Tab("Extensions"):
                    mmaudio_mode_default = self.server_config.get("mmaudio_mode", None)
                    mmaudio_persistence_default = self.server_config.get("mmaudio_persistence", None)
                    if mmaudio_mode_default is None:
                        legacy_mmaudio = self.server_config.get("mmaudio_enabled", 0)
                        mmaudio_mode_default = 0 if legacy_mmaudio == 0 else 1
                    if mmaudio_persistence_default is None:
                        legacy_mmaudio = self.server_config.get("mmaudio_enabled", 0)
                        mmaudio_persistence_default = 2 if legacy_mmaudio == 2 else 1

                    self.mmaudio_mode_choice = gr.Dropdown(
                        choices=[("Off", 0), ("Standard", 1), ("NSFW", 2)],
                        value=mmaudio_mode_default,
                        label="MMAudio Soundtrack Generation (requires 10GB extra download)"
                    )
                    self.mmaudio_persistence_choice = gr.Dropdown(
                        choices=[("Unload after use", 1), ("Persistent in RAM", 2)],
                        value=mmaudio_persistence_default,
                        label="MMAudio Model Persistence"
                    )
                    self.rife_version_choice = gr.Dropdown(
                        choices=[("RIFE HDv3 (default)", "v3"), ("RIFE v4.26 (latest)", "v4")],
                        value=self.server_config.get("rife_version", "v4"),
                        label="RIFE Temporal Upsampling Model",
                        interactive=not self.args.lock_config
                    )
                    self.matanyone_version_choice = gr.Dropdown(
                        choices=[("MatAnyone v1 (original, default)", "v1"), ("MatAnyone v2", "v2")],
                        value=self.server_config.get("matanyone_version", "v1"),
                        label="MatAnyone Video Mask Model",
                        interactive=not self.args.lock_config
                    )

                with gr.Tab("Prompt Enhancer / Deepy"):
                    with gr.Group():
                        self.enhancer_enabled_choice = gr.Dropdown(choices=[("Off", 0), ("Florence 2 (image captioning) + LLama 3.2 3B (text generation)", 1), ("Florence 2 (image captioning) + Llama Joy 8B (uncensored, richer)", 2), ("Qwen3.5VL Abliterated 4B (captioning + uncensored text enhancement, vllm accelerated if available)", 3), ("Qwen3.5VL Abliterated 9B (captioning + uncensored high end text enhancement, vllm accelerated if available)", 4)], value=self.server_config.get("enhancer_enabled", 0), label="Prompt Enhancer (requires extra model files)")
                        self.enhancer_quantization_choice = gr.Dropdown(
                            choices=[("Quanto Int8 (better quality)", "quanto_int8"), ("GGUF Q4 (less VRAM/RAM & faster if kernels are installed, but worse quality)", "gguf")],
                            value=self.server_config.get("prompt_enhancer_quantization", "quanto_int8"),
                            label="Qwen3.5 LLM Quantization",
                        )
                        self.enhancer_mode_choice = gr.Dropdown(choices=[("On-Demand Button Only", 1),("Automatic on Generation", 0)], value=self.server_config.get("enhancer_mode", 1), label="Prompt Enhancer Usage")
                    with gr.Row():
                        self.prompt_enhancer_temperature_choice = gr.Slider(
                            0.1,
                            1.5,
                            value=self.server_config.get("prompt_enhancer_temperature", 0.6),
                            step=0.01,
                            label="Prompt Enhancer Temperature (High = More Creativity)",
                            interactive=not self.args.lock_config,
                        )
                        self.prompt_enhancer_top_p_choice = gr.Slider(
                            0.1,
                            1.0,
                            value=self.server_config.get("prompt_enhancer_top_p", 0.9),
                            step=0.01,
                            label="Prompt Enhancer Top-p (High = More Variety)",
                            interactive=not self.args.lock_config,
                        )
                    self.prompt_enhancer_randomize_seed_choice = gr.Checkbox(
                        value=self.server_config.get("prompt_enhancer_randomize_seed", True),
                        label="Randomize Prompt Enhancer Seed",
                        interactive=not self.args.lock_config,
                    )
                    self.deepy_enabled_choice = gr.Dropdown(
                        choices=[("Off", 0), ("On", 1)],
                        value=normalize_deepy_enabled(self.server_config.get(DEEPY_ENABLED_KEY, 0)),
                        label="Enable Deepy",
                    )
                    self.deepy_vram_mode_choice = gr.Dropdown(
                        choices=[
                            ("Unload from VRAM as soon as possible", DEEPY_VRAM_MODE_UNLOAD),
                            ("Unload from VRAM if VRAM requested by another WanGP component", DEEPY_VRAM_MODE_UNLOAD_ON_REQUEST),
                            ("Always loaded in VRAM", DEEPY_VRAM_MODE_ALWAYS_LOADED),
                        ],
                        value=normalize_deepy_vram_mode(self.server_config.get(DEEPY_VRAM_MODE_KEY, DEEPY_VRAM_MODE_UNLOAD)),
                        label="Deepy VRAM Loading Mode (the longer Deepy stays in VRAM, the faster Deeper is    )",
                    )
                    deepy_context_tokens_default = normalize_deepy_context_tokens(self.server_config.get(DEEPY_CONTEXT_TOKENS_KEY, DEEPY_CONTEXT_TOKENS_DEFAULT))
                    self.deepy_context_tokens_choice = gr.Slider(
                        minimum=4096,
                        maximum=256000,
                        value=deepy_context_tokens_default,
                        step=512,
                        label=format_deepy_context_tokens_label(self.server_config.get("enhancer_enabled", 0), deepy_context_tokens_default),
                    )
                    self.deepy_custom_system_prompt_choice = gr.Textbox(
                        value=normalize_deepy_custom_system_prompt(self.server_config.get(DEEPY_CUSTOM_SYSTEM_PROMPT_KEY, "")),
                        lines=6,
                        label="Custom System Prompt",
                        info="Added after the built-in Deepy system prompt on the next user interaction.",
                    )
                    self.deepy_requirement_md = gr.Markdown(value=deepy_requirement_message(self.server_config))

                with gr.Tab("Outputs"):
                    self.video_output_codec_choice = gr.Dropdown(choices=[("x265 CRF 28 (Balanced)", 'libx265_28'), ("x264 Level 8 (Balanced)", 'libx264_8'), ("x265 CRF 8 (High Quality)", 'libx265_8'), ("x264 Level 10 (High Quality)", 'libx264_10'), ("x264 Lossless", 'libx264_lossless')], value=self.server_config.get("video_output_codec", "libx264_8"), label="Video Codec")
                    self.image_output_codec_choice = gr.Dropdown(choices=[("JPEG Q85", 'jpeg_85'), ("WEBP Q85", 'webp_85'), ("JPEG Q95", 'jpeg_95'), ("WEBP Q95", 'webp_95'), ("WEBP Lossless", 'webp_lossless'), ("PNG Lossless", 'png')], value=self.server_config.get("image_output_codec", "jpeg_95"), label="Image Codec")
                    self.audio_output_codec_choice = gr.Dropdown(
                        choices=[
                            ("AAC 128 kbps", "aac_128"),
                            ("AAC 192 kbps", "aac_192"),
                            ("AAC 256 kbps (High Quality, Recommended)", "aac_256"),
                            ("AAC 320 kbps (Very High Quality)", "aac_320"),
                            ("ALAC Lossless (preview/playback compatibility may be limited)", "alac"),
                        ],
                        value=self.server_config.get("audio_output_codec", "aac_128"),
                        visible=True,
                        label="Audio Codec to use for mp4 container",
                    )
                    audio_standalone_default = self.server_config.get("audio_stand_alone_output_codec", "wav")
                    if audio_standalone_default == "mp3":
                        audio_standalone_default = "mp3_192"
                    self.audio_stand_alone_output_codec_choice = gr.Dropdown(
                        choices=[
                            ("WAV (Lossless)", "wav"),
                            ("MP3 128 kbps", "mp3_128"),
                            ("MP3 192 kbps", "mp3_192"),
                            ("MP3 320 kbps", "mp3_320"),
                        ],
                        value=audio_standalone_default,
                        visible=True,
                        label="Audio Codec to use for standalone audio files",
                    )
                    self.metadata_choice = gr.Dropdown(
                        choices=[("Export JSON files", "json"), ("Embed metadata in file (Exif/tag)", "metadata"), ("None", "none")],
                        value=self.server_config.get("metadata_type", "metadata"), label="Metadata Handling"
                    )
                    self.keep_intermediate_sliding_windows_choice = gr.Dropdown(
                        choices=[("Yes", 1), ("No", 0)],
                        value=self.server_config.get("keep_intermediate_sliding_windows", 1),
                        label="Keep Intermediate Sliding Windows"
                    )
                    self.embed_source_images_choice = gr.Checkbox(
                        value=self.server_config.get("embed_source_images", False),
                        label="Embed Source Images",
                        info="Saves i2v source images inside MP4 files"
                    )
                    self.video_save_path_choice = gr.Textbox(label="Video Output Folder (requires restart)", value=self.save_path)
                    self.image_save_path_choice = gr.Textbox(label="Image Output Folder (requires restart)", value=self.image_save_path)
                    self.audio_save_path_choice = gr.Textbox(label="Audio Output Folder (requires restart)", value=self.audio_save_path)

                with gr.Tab("Notifications"):
                    self.notification_sound_enabled_choice = gr.Dropdown(choices=[("On", 1), ("Off", 0)], value=self.server_config.get("notification_sound_enabled", 0), label="Notification Sound")
                    self.notification_sound_volume_choice = gr.Slider(0, 100, value=self.server_config.get("notification_sound_volume", 50), step=5, label="Notification Volume")

            self.msg = gr.Markdown()
            with gr.Row():
                self.apply_btn = gr.Button("Save Settings")

        def update_deepy_requirement(enhancer_enabled_choice):
            runtime_config = dict(self.server_config)
            runtime_config["enhancer_enabled"] = enhancer_enabled_choice
            return deepy_requirement_message(runtime_config)

        self.enhancer_enabled_choice.input(fn=update_deepy_requirement, inputs=[self.enhancer_enabled_choice], outputs=[self.deepy_requirement_md], show_progress="hidden")

        def update_deepy_context_label(enhancer_enabled_choice, deepy_context_tokens_choice):
            return gr.update(label=format_deepy_context_tokens_label(enhancer_enabled_choice, deepy_context_tokens_choice))

        self.enhancer_enabled_choice.input(fn=update_deepy_context_label, inputs=[self.enhancer_enabled_choice, self.deepy_context_tokens_choice], outputs=[self.deepy_context_tokens_choice], show_progress="hidden")
        self.deepy_context_tokens_choice.input(fn=update_deepy_context_label, inputs=[self.enhancer_enabled_choice, self.deepy_context_tokens_choice], outputs=[self.deepy_context_tokens_choice], show_progress="hidden")

        inputs = [
            self.state,
            self.transformer_types_choices, self.model_hierarchy_type_choice, self.fit_canvas_choice,
            self.attention_choice, self.preload_model_policy_choice, self.clear_file_list_choice, self.keep_intermediate_sliding_windows_choice,
            self.display_stats_choice, self.max_frames_multiplier_choice, self.enable_4k_resolutions_choice, self.checkpoints_paths_choice, self.loras_root_choice, self.save_queue_if_crash_choice,
            self.UI_theme_choice, self.queue_color_scheme_choice,
            self.quantization_choice, self.transformer_dtype_policy_choice, self.mixed_precision_choice,
            self.text_encoder_quantization_choice, self.lm_decoder_engine_choice, self.VAE_precision_choice, self.compile_choice,
            self.depth_anything_v2_variant_choice, self.vae_config_choice, self.boost_choice, self.enable_int8_kernels_choice,
            self.video_profile_choice, self.image_profile_choice, self.audio_profile_choice,
            self.preload_in_VRAM_choice, self.max_reserved_loras_choice,
            self.enhancer_enabled_choice, self.enhancer_quantization_choice, self.enhancer_mode_choice,
            self.prompt_enhancer_temperature_choice, self.prompt_enhancer_top_p_choice, self.prompt_enhancer_randomize_seed_choice,
            self.mmaudio_mode_choice, self.mmaudio_persistence_choice, self.rife_version_choice, self.matanyone_version_choice,
            self.deepy_enabled_choice, self.deepy_vram_mode_choice,
            self.deepy_context_tokens_choice, self.deepy_custom_system_prompt_choice,
            self.video_output_codec_choice, self.image_output_codec_choice, self.audio_output_codec_choice, self.audio_stand_alone_output_codec_choice,
            self.metadata_choice, self.embed_source_images_choice,
            self.video_save_path_choice, self.image_save_path_choice, self.audio_save_path_choice,
            self.notification_sound_enabled_choice, self.notification_sound_volume_choice,
            self.resolution
        ]

        self.apply_btn.click(
            fn=self._save_changes,
            inputs=inputs,
            outputs=[
                self.msg,
                self.model_description,
                self.header,
                self.model_family,
                self.model_base_type_choice,
                self.model_choice,
                self.refresh_form_trigger,
                self.assistant_launcher_host,
                self.assistant_panel
            ]
        )

        def _unload_targets_text():
            targets = ["Models"]
            try:
                enhancer_enabled = int(self.server_config.get("enhancer_enabled", 0) or 0) > 0
            except Exception:
                enhancer_enabled = False
            if enhancer_enabled:
                targets.append("Prompt Enhancer")
            if deepy_available(self.server_config):
                targets.append("Deepy")
            if len(targets) == 1:
                return targets[0]
            return ", ".join(targets[:-1]) + f", and {targets[-1]}" if len(targets) > 2 else " and ".join(targets)

        def release_ram_and_notify(state):
            unload_targets = _unload_targets_text()
            if self.any_GPU_process_running(state, "configuration"):
                gr.Info(f"Unable to unload {unload_targets} while GPU resources are allocated.")
                return
            if deepy_available(self.server_config):
                self.release_deepy_vram(state, clear_session_state=False, discard_runtime_snapshot=True)
            if "Prompt Enhancer" in unload_targets:
                self.reset_prompt_enhancer()
                self.reset_prompt_enhancer_if_requested()
            self.release_model()
            gr.Info(f"{unload_targets} unloaded from RAM.")

        self.release_RAM_btn.click(fn=release_ram_and_notify, inputs=[self.state])
        return [self.release_RAM_btn]

    def _save_changes(self, state, *args):
        gen_in_progress = self.is_generation_in_progress()
        # return "<div style='color:red; text-align:center;'>Unable to change config when a generation is in progress.</div>", *[gr.update()]*5

        if self.args.lock_config:
            return "<div style='color:red; text-align:center;'>Configuration is locked by command-line arguments.</div>", *[gr.update()]*8

        old_server_config = self.server_config.copy()

        (
            transformer_types_choices, model_hierarchy_type_choice, fit_canvas_choice,
            attention_choice, preload_model_policy_choice, clear_file_list_choice, keep_intermediate_sliding_windows_choice,
            display_stats_choice, max_frames_multiplier_choice, enable_4k_resolutions_choice, checkpoints_paths_choice, loras_root_choice, save_queue_if_crash_choice,
            UI_theme_choice, queue_color_scheme_choice,
            quantization_choice, transformer_dtype_policy_choice, mixed_precision_choice,
            text_encoder_quantization_choice, lm_decoder_engine_choice, VAE_precision_choice, compile_choice,
            depth_anything_v2_variant_choice, vae_config_choice, boost_choice, enable_int8_kernels_choice,
            video_profile_choice, image_profile_choice, audio_profile_choice,
            preload_in_VRAM_choice, max_reserved_loras_choice,
            enhancer_enabled_choice, enhancer_quantization_choice, enhancer_mode_choice,
            prompt_enhancer_temperature_choice, prompt_enhancer_top_p_choice, prompt_enhancer_randomize_seed_choice,
            mmaudio_mode_choice, mmaudio_persistence_choice, rife_version_choice, matanyone_version_choice,
            deepy_enabled_choice, deepy_vram_mode_choice,
            deepy_context_tokens_choice, deepy_custom_system_prompt_choice,
            video_output_codec_choice, image_output_codec_choice, audio_output_codec_choice, audio_stand_alone_output_codec_choice,
            metadata_choice, embed_source_images_choice,
            save_path_choice, image_save_path_choice, audio_save_path_choice,
            notification_sound_enabled_choice, notification_sound_volume_choice,
            last_resolution_choice
        ) = args

        if len(checkpoints_paths_choice.strip()) == 0:
            checkpoints_paths = self.fl.default_checkpoints_paths
        else:
            checkpoints_paths = [path.strip() for path in checkpoints_paths_choice.replace("\r", "").split("\n") if len(path.strip()) > 0]

        self.fl.set_checkpoints_paths(checkpoints_paths)

        mmaudio_enabled_choice = 0 if mmaudio_mode_choice == 0 else mmaudio_persistence_choice

        new_server_config = dict(old_server_config)
        new_server_config.update({
            "attention_mode": attention_choice, "transformer_types": transformer_types_choices,
            "text_encoder_quantization": text_encoder_quantization_choice, "save_path": save_path_choice,
            "image_save_path": image_save_path_choice, "audio_save_path": audio_save_path_choice,
            "lm_decoder_engine": lm_decoder_engine_choice,
            "compile": compile_choice, "profile": video_profile_choice,
            "video_profile": video_profile_choice, "image_profile": image_profile_choice, "audio_profile": audio_profile_choice,
            "vae_config": vae_config_choice, "vae_precision": VAE_precision_choice,
            "mixed_precision": mixed_precision_choice, "metadata_type": metadata_choice,
            "transformer_quantization": quantization_choice, "transformer_dtype_policy": transformer_dtype_policy_choice,
            "boost": boost_choice, "enable_int8_kernels": enable_int8_kernels_choice, "clear_file_list": clear_file_list_choice,
            "keep_intermediate_sliding_windows": keep_intermediate_sliding_windows_choice,
            "preload_model_policy": preload_model_policy_choice, "UI_theme": UI_theme_choice,
            "fit_canvas": fit_canvas_choice, "enhancer_enabled": enhancer_enabled_choice,
            "prompt_enhancer_quantization": enhancer_quantization_choice,
            "enhancer_mode": enhancer_mode_choice, "mmaudio_mode": mmaudio_mode_choice,
            "mmaudio_persistence": mmaudio_persistence_choice, "mmaudio_enabled": mmaudio_enabled_choice,
            "rife_version": rife_version_choice, "matanyone_version": matanyone_version_choice,
            "prompt_enhancer_temperature": prompt_enhancer_temperature_choice,
            "prompt_enhancer_top_p": prompt_enhancer_top_p_choice,
            "prompt_enhancer_randomize_seed": prompt_enhancer_randomize_seed_choice,
            DEEPY_ENABLED_KEY: normalize_deepy_enabled(deepy_enabled_choice),
            DEEPY_VRAM_MODE_KEY: normalize_deepy_vram_mode(deepy_vram_mode_choice),
            DEEPY_CONTEXT_TOKENS_KEY: normalize_deepy_context_tokens(deepy_context_tokens_choice),
            DEEPY_CUSTOM_SYSTEM_PROMPT_KEY: normalize_deepy_custom_system_prompt(deepy_custom_system_prompt_choice),
            "preload_in_VRAM": preload_in_VRAM_choice, "depth_anything_v2_variant": depth_anything_v2_variant_choice,
            "notification_sound_enabled": notification_sound_enabled_choice,
            "notification_sound_volume": notification_sound_volume_choice,
            "max_frames_multiplier": max_frames_multiplier_choice, "display_stats": display_stats_choice,
            "enable_4k_resolutions": enable_4k_resolutions_choice,
            "max_reserved_loras": max_reserved_loras_choice,
            "video_output_codec": video_output_codec_choice, "image_output_codec": image_output_codec_choice,
            "audio_output_codec": audio_output_codec_choice,
            "audio_stand_alone_output_codec": audio_stand_alone_output_codec_choice,
            "model_hierarchy_type": model_hierarchy_type_choice,
            "checkpoints_paths": checkpoints_paths,
            "loras_root": loras_root_choice,
            "save_queue_if_crash": save_queue_if_crash_choice,
            "queue_color_scheme": queue_color_scheme_choice,
            "embed_source_images": embed_source_images_choice,
            "video_container": "mp4", # Fixed to MP4
            "last_model_type": state["model_type"],
            "last_model_per_family": state["last_model_per_family"],
            "last_model_per_type": state["last_model_per_type"],
            "last_advanced_choice": state["advanced"], "last_resolution_choice": last_resolution_choice,
            "last_resolution_per_group": state["last_resolution_per_group"],
        })

        if self.args.lock_config:
            if "attention_mode" in old_server_config: new_server_config["attention_mode"] = old_server_config["attention_mode"]
            if "compile" in old_server_config: new_server_config["compile"] = old_server_config["compile"]

        with open(self.server_config_filename, "w", encoding="utf-8") as writer:
            writer.write(json.dumps(new_server_config, indent=4))
        
        changes = [k for k, v in new_server_config.items() if v != old_server_config.get(k)]

        no_reload_keys = [
            "attention_mode", "vae_config", "boost", "enable_int8_kernels", "save_path", "image_save_path", "audio_save_path",
            "metadata_type", "clear_file_list", "keep_intermediate_sliding_windows", "fit_canvas", "depth_anything_v2_variant",
            "notification_sound_enabled", "notification_sound_volume", "mmaudio_mode",
            "mmaudio_persistence", "mmaudio_enabled", "rife_version", "matanyone_version",
            "prompt_enhancer_temperature", "prompt_enhancer_top_p", "prompt_enhancer_randomize_seed", "prompt_enhancer_quantization",
            DEEPY_ENABLED_KEY, DEEPY_VRAM_MODE_KEY, DEEPY_CONTEXT_TOKENS_KEY, DEEPY_CUSTOM_SYSTEM_PROMPT_KEY,
            "max_frames_multiplier", "display_stats", "enable_4k_resolutions", "max_reserved_loras", "video_output_codec", "video_container",
            "embed_source_images", "image_output_codec", "audio_output_codec", "audio_stand_alone_output_codec", "checkpoints_paths", "loras_root", "save_queue_if_crash",
            "model_hierarchy_type", "UI_theme", "queue_color_scheme"
        ]

        needs_reload = not all(change in no_reload_keys for change in changes)

        self.set_global("server_config", new_server_config)
        self.set_global("three_levels_hierarchy", new_server_config["model_hierarchy_type"] == 1)
        self.set_global("attention_mode", new_server_config["attention_mode"])
        self.set_global("default_profile", new_server_config["profile"])
        self.set_global("default_profile_video", new_server_config["video_profile"])
        self.set_global("default_profile_image", new_server_config["image_profile"])
        self.set_global("default_profile_audio", new_server_config["audio_profile"])
        self.set_global("compile", new_server_config["compile"])
        self.set_global("text_encoder_quantization", new_server_config["text_encoder_quantization"])
        self.set_global("lm_decoder_engine", new_server_config["lm_decoder_engine"])
        self.set_global("vae_config", new_server_config["vae_config"])
        self.set_global("boost", new_server_config["boost"])
        self.set_global("enable_int8_kernels", new_server_config["enable_int8_kernels"])
        self.set_global("save_path", new_server_config["save_path"])
        self.set_global("image_save_path", new_server_config["image_save_path"])
        self.set_global("audio_save_path", new_server_config["audio_save_path"])
        self.set_global("preload_model_policy", new_server_config["preload_model_policy"])
        self.set_global("transformer_quantization", new_server_config["transformer_quantization"])
        self.set_global("transformer_dtype_policy", new_server_config["transformer_dtype_policy"])
        self.set_global("transformer_types", new_server_config["transformer_types"])
        set_deepy_runtime_config(new_server_config, self.server_config_filename)
        if needs_reload: self.set_global("reload_needed", True)
        self.server_config.update(new_server_config)

        if "enhancer_enabled" in changes or "enhancer_mode" in changes or "prompt_enhancer_quantization" in changes or "lm_decoder_engine" in changes or DEEPY_ENABLED_KEY in changes or DEEPY_VRAM_MODE_KEY in changes:
            get_or_create_assistant_session(state).force_loading_status_once = True
            self.release_deepy_vram(state, clear_session_state=False)
            self.reset_prompt_enhancer()
        if "enable_int8_kernels" in changes:
            self.apply_int8_kernel_setting(new_server_config["enable_int8_kernels"], True)

        model_type = state["model_type"]
        
        model_family_update, model_base_type_update, model_choice_update = self.generate_dropdown_model_list(model_type)
        description_update, header_update = self.generate_header(model_type, compile=new_server_config["compile"], attention_mode=new_server_config["attention_mode"])

        if gen_in_progress:
            msg = "<div style='color:green; text-align:center;'>The new configuration has been succesfully applied. Some of the Settings will be only effective when you will start another Generation</div>"
        else:
            msg = "<div style='color:green; text-align:center;'>The new configuration has been succesfully applied.</div>"

        deepy_visible = deepy_available(new_server_config)
        launcher_update = gr.update(value=assistant_chat.render_launcher_html() if deepy_visible else "", visible=deepy_visible)
        panel_update = gr.update(visible=deepy_visible)

        return (
            msg,
            description_update,
            header_update,
            model_family_update,
            model_base_type_update,
            model_choice_update,
            self.get_unique_id(),
            launcher_update,
            panel_update,
        )