import copy
from pathlib import Path

import gradio as gr
import torch
import yaml

from modules import shared


with open(Path(__file__).resolve().parent / '../css/main.css', 'r') as f:
    css = f.read()
with open(Path(__file__).resolve().parent / '../js/main.js', 'r') as f:
    js = f.read()
with open(Path(__file__).resolve().parent / '../js/save_files.js', 'r') as f:
    save_files_js = f.read()
with open(Path(__file__).resolve().parent / '../js/switch_tabs.js', 'r') as f:
    switch_tabs_js = f.read()
with open(Path(__file__).resolve().parent / '../js/show_controls.js', 'r') as f:
    show_controls_js = f.read()

refresh_symbol = '🔄'
delete_symbol = '🗑️'
save_symbol = '💾'

theme = gr.themes.Default(
    font=['Helvetica', 'ui-sans-serif', 'system-ui', 'sans-serif'],
    font_mono=['IBM Plex Mono', 'ui-monospace', 'Consolas', 'monospace'],
).set(
    border_color_primary='#c5c5d2',
    button_large_padding='6px 12px',
    body_text_color_subdued='#484848',
    background_fill_secondary='#eaeaea'
)

if Path("notification.mp3").exists():
    audio_notification_js = "document.querySelector('#audio_notification audio')?.play();"
else:
    audio_notification_js = ""


def list_model_elements():
    elements = [
        'loader',
        'cpu_memory',
        'auto_devices',
        'disk',
        'cpu',
        'bf16',
        'load_in_8bit',
        'trust_remote_code',
        'load_in_4bit',
        'compute_dtype',
        'quant_type',
        'use_double_quant',
        'wbits',
        'groupsize',
        'model_type',
        'pre_layer',
        'triton',
        'desc_act',
        'no_inject_fused_attention',
        'no_inject_fused_mlp',
        'no_use_cuda_fp16',
        'disable_exllama',
        'cfg_cache',
        'threads',
        'n_batch',
        'no_mmap',
        'low_vram',
        'mlock',
        'mul_mat_q',
        'n_gpu_layers',
        'tensor_split',
        'n_ctx',
        'n_gqa',
        'rms_norm_eps',
        'llama_cpp_seed',
        'gpu_split',
        'max_seq_len',
        'compress_pos_emb',
        'alpha_value'
    ]

    for i in range(torch.cuda.device_count()):
        elements.append(f'gpu_memory_{i}')

    return elements


def list_interface_input_elements():
    elements = [
        'max_new_tokens',
        'auto_max_new_tokens',
        'seed',
        'temperature',
        'top_p',
        'top_k',
        'typical_p',
        'epsilon_cutoff',
        'eta_cutoff',
        'repetition_penalty',
        'repetition_penalty_range',
        'encoder_repetition_penalty',
        'no_repeat_ngram_size',
        'min_length',
        'do_sample',
        'penalty_alpha',
        'num_beams',
        'length_penalty',
        'early_stopping',
        'mirostat_mode',
        'mirostat_tau',
        'mirostat_eta',
        'negative_prompt',
        'guidance_scale',
        'add_bos_token',
        'ban_eos_token',
        'truncation_length',
        'custom_stopping_strings',
        'skip_special_tokens',
        'stream',
        'tfs',
        'top_a',
    ]

    # Chat elements
    elements += [
        'textbox',
        'start_with',
        'character_menu',
        'history',
        'name1',
        'name2',
        'greeting',
        'context',
        'mode',
        'instruction_template',
        'name1_instruct',
        'name2_instruct',
        'context_instruct',
        'turn_template',
        'chat_style',
        'chat-instruct_command',
    ]

    # Notebook/default elements
    elements += [
        'textbox-notebook',
        'textbox-default',
        'output_textbox',
        'prompt_menu-default',
        'prompt_menu-notebook',
    ]

    # Model elements
    elements += list_model_elements()

    return elements


def gather_interface_values(*args):
    output = {}
    for i, element in enumerate(list_interface_input_elements()):
        output[element] = args[i]

    if not shared.args.multi_user:
        shared.persistent_interface_state = output

    return output


def apply_interface_values(state, use_persistent=False):
    if use_persistent:
        state = shared.persistent_interface_state

    elements = list_interface_input_elements()
    if len(state) == 0:
        return [gr.update() for k in elements]  # Dummy, do nothing
    else:
        return [state[k] if k in state else gr.update() for k in elements]


def save_settings(state, preset, instruction_template, extensions, show_controls):
    output = copy.deepcopy(shared.settings)
    exclude = ['name1', 'name2', 'greeting', 'context', 'turn_template']
    for k in state:
        if k in shared.settings and k not in exclude:
            output[k] = state[k]

    output['preset'] = preset
    output['prompt-default'] = state['prompt_menu-default']
    output['prompt-notebook'] = state['prompt_menu-notebook']
    output['character'] = state['character_menu']
    output['instruction_template'] = instruction_template
    output['default_extensions'] = extensions
    output['seed'] = int(output['seed'])
    output['show_controls'] = show_controls

    return yaml.dump(output, sort_keys=False, width=float("inf"))


class ToolButton(gr.Button, gr.components.IOComponent):
    """
    Small button with single emoji as text, fits inside gradio forms
    Copied from https://github.com/AUTOMATIC1111/stable-diffusion-webui
    """

    def __init__(self, **kwargs):
        super().__init__(**kwargs)

    def get_block_name(self):
        return "button"


def create_refresh_button(refresh_component, refresh_method, refreshed_args, elem_class):
    """
    Copied from https://github.com/AUTOMATIC1111/stable-diffusion-webui
    """
    def refresh():
        refresh_method()
        args = refreshed_args() if callable(refreshed_args) else refreshed_args

        for k, v in args.items():
            setattr(refresh_component, k, v)

        return gr.update(**(args or {}))

    refresh_button = ToolButton(value=refresh_symbol, elem_classes=elem_class)
    refresh_button.click(
        fn=refresh,
        inputs=[],
        outputs=[refresh_component]
    )

    return refresh_button


def create_delete_button(**kwargs):
    return ToolButton(value=delete_symbol, **kwargs)


def create_save_button(**kwargs):
    return ToolButton(value=save_symbol, **kwargs)