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import gradio as gr
import os
from groq import Groq

api_key = os.getenv("GROQ_API_KEY")
client = Groq(api_key=api_key)

conversation_history = []

def chat_with_bot_stream(user_input):
    global conversation_history
    conversation_history.append({"role": "user", "content": user_input})
    
    if len(conversation_history) == 1:
        conversation_history.insert(0, {
            "role": "system",
            "content": (
                "You are a music and genre recommendation bot designed to help users discover new music "
                "based on their preferences, mood, or activity.\n\nYour responses should be engaging, "
                "personalized, and insightful. You can recommend:\n\n- Specific songs, albums, or artists\n"
                "- Genres based on mood, activity, or past preferences\n- Hidden gems and deep cuts "
                "for music enthusiasts\n- Trending or classic hits based on user taste\n\nBe conversational, "
                "suggest multiple options when possible, and encourage users to explore new sounds. "
                "If requested, provide brief descriptions of artists or genres, and explain why a "
                "recommendation might suit the user."
            )
        })
    
    completion = client.chat.completions.create(
        model="llama3-70b-8192",
        messages=conversation_history,
        temperature=1,
        max_tokens=1024,
        top_p=1,
        stream=True,
    )
    
    response_content = ""
    for chunk in completion:
        response_content += chunk.choices[0].delta.content or ""
    
    conversation_history.append({"role": "assistant", "content": response_content})
    
    return [
        (msg["content"] if msg["role"] == "user" else None, 
         msg["content"] if msg["role"] == "assistant" else None)
        for msg in conversation_history
    ]

# word translation
translations = {
    "English": {
         "header_description": "Your own personal music discovery assistant!",
         "user_input_placeholder": "Enter your music-related questions here!",
         "send_button": "Send",
         "settings_markdown": "### Settings",
         "apply_settings_button": "Apply Settings",
         "select_language_label": "🌐 Language",
         "theme_label": "Theme",
         "theme_choices": ["Dark", "Light"],
         "font_size_label": "Font Size",
         "font_size_choices": ["Small", "Medium", "Large"],
         "language_choices": ["English", "Spanish", "French"]
    },
    "Spanish": {
         "header_description": "¡Tu asistente personal para descubrir música!",
         "user_input_placeholder": "¡Introduce tus preguntas relacionadas con la música!",
         "send_button": "Enviar",
         "settings_markdown": "### Configuración",
         "apply_settings_button": "Aplicar Configuración",
         "select_language_label": "🌐 Idioma",
         "theme_label": "Tema",
         "theme_choices": ["Oscuro", "Claro"],
         "font_size_label": "Tamaño de Fuente",
         "font_size_choices": ["Pequeño", "Mediano", "Grande"],
         "language_choices": ["Inglés", "Español", "Francés"]
    },
    "French": {
         "header_description": "Votre assistant personnel pour découvrir de la musique !",
         "user_input_placeholder": "Entrez vos questions sur la musique ici !",
         "send_button": "Envoyer",
         "settings_markdown": "### Paramètres",
         "apply_settings_button": "Appliquer les paramètres",
         "select_language_label": "🌐 Langue",
         "theme_label": "Thème",
         "theme_choices": ["Sombre", "Clair"],
         "font_size_label": "Taille de police",
         "font_size_choices": ["Petit", "Moyen", "Grand"],
         "language_choices": ["Anglais", "Espagnol", "Français"]
    }
}

# translations for theme
english_to_spanish_theme = {"Dark": "Oscuro", "Light": "Claro"}
spanish_to_english_theme = {"Oscuro": "Dark", "Claro": "Light"}
english_to_french_theme = {"Dark": "Sombre", "Light": "Clair"}
french_to_english_theme = {"Sombre": "Dark", "Clair": "Light"}

english_to_spanish_font = {"Small": "Pequeño", "Medium": "Mediano", "Large": "Grande"}
spanish_to_english_font = {"Pequeño": "Small", "Mediano": "Medium", "Grande": "Large"}
english_to_french_font = {"Small": "Petit", "Medium": "Moyen", "Large": "Grand"}
french_to_english_font = {"Petit": "Small", "Moyen": "Medium", "Grand": "Large"}

# I wanted to include the c in Fraincais and the spanish e and n in Spanish
def normalize_language(lang):
    if lang in ["English", "Inglés", "Anglais"]:
         return "English"
    elif lang in ["Spanish", "Español", "Espagnol"]:
         return "Spanish"
    elif lang in ["French", "Français"]:
         return "French"
    else:
         return "English"

def update_all_settings(theme, font_size, language):
    target_lang = normalize_language(language)
    t = translations[target_lang]
    
    if target_lang == "Spanish":
        theme_for_ui = english_to_spanish_theme.get(theme, theme) if theme in english_to_spanish_theme else theme if theme in spanish_to_english_theme else "Oscuro"
    elif target_lang == "French":
        theme_for_ui = english_to_french_theme.get(theme, theme) if theme in english_to_french_theme else theme if theme in french_to_english_theme else "Sombre"
    else:  # target is English
        theme_for_ui = spanish_to_english_theme.get(theme, theme) if theme in spanish_to_english_theme else theme if theme in english_to_spanish_theme else "Dark"
    
    if target_lang == "Spanish":
        font_for_ui = english_to_spanish_font.get(font_size, font_size) if font_size in english_to_spanish_font else font_size if font_size in spanish_to_english_font else "Mediano"
    elif target_lang == "French":
        font_for_ui = english_to_french_font.get(font_size, font_size) if font_size in english_to_french_font else font_size if font_size in french_to_english_font else "Moyen"
    else:
        font_for_ui = spanish_to_english_font.get(font_size, font_size) if font_size in spanish_to_english_font else font_size if theme in english_to_spanish_font else "Medium"
    
    if theme in ["Dark", "Light"]:
        theme_for_style = theme
    elif theme in spanish_to_english_theme:
        theme_for_style = spanish_to_english_theme.get(theme, "Dark")
    elif theme in french_to_english_theme:
        theme_for_style = french_to_english_theme.get(theme, "Dark")
    else:
        theme_for_style = "Dark"
    
    if font_size in ["Small", "Medium", "Large"]:
        font_for_style = font_size
    elif font_size in spanish_to_english_font:
        font_for_style = spanish_to_english_font.get(font_size, "Medium")
    elif font_size in french_to_english_font:
        font_for_style = french_to_english_font.get(font_size, "Medium")
    else:
        font_for_style = "Medium"
    
    dynamic_style = update_styles(theme_for_style, font_for_style)
    
    #Languages
    if target_lang == "English":
        language_value = "English"
    elif target_lang == "Spanish":
        language_value = "Español"
    elif target_lang == "French":
        language_value = "Français"
    header_html = f'<p id="header_description">{t["header_description"]}</p>'
    
    return (
        dynamic_style,
        gr.update(value=header_html),
        gr.update(placeholder=t["user_input_placeholder"]),
        gr.update(value=t["send_button"]),
        gr.update(value=t["settings_markdown"]),
        gr.update(value=t["apply_settings_button"]),
        gr.update(label=t["theme_label"], choices=t["theme_choices"], value=theme_for_ui),
        gr.update(label=t["font_size_label"], choices=t["font_size_choices"], value=font_for_ui),
        gr.update(label=t["select_language_label"], choices=t["language_choices"], value=language_value)
    )


# DARK ADN LIGHT MODE
def update_styles(theme, font_size):
    if theme == "Dark":
        bg = "#18181B"
        text_color = "#ffffff"
        input_bg = "#AFA79F"
        button_bg = "#56246B"
        settings_box_bg = "#555555"
        apply_button_bg = "#666666"
        radio_bg = "#555555"
        settings_heading_color = text_color
    else:
        bg = "#ffffff"
        text_color = "#000000"
        input_bg = "#f2f2f2"
        button_bg = "#dddddd"
        settings_box_bg = "#eeeeee"
        apply_button_bg = "#e0e0e0"
        radio_bg = "#e0e0e0"
        settings_heading_color = "#333333"
    
    # Font, still havent decided if i want a slider but this is cleaner design in my op
    if font_size == "Small":
        fsize = "0.8rem"
        tab_padding = "4px 8px"
    elif font_size == "Medium":
        fsize = "1.2rem"
        tab_padding = "6px 12px"
    elif font_size == "Large":
        fsize = "1.8rem"
        tab_padding = "8px 16px"
    else:
        fsize = "1rem"
        tab_padding = "5px 10px"
    
    style = f"""
    <style id="dynamic_styles">

    body, .gradio-container {{
        background-color: {bg} !important;
        color: {text_color} !important;
        font-size: {fsize} !important;
    }}
    
    #header_description {{
        color: {text_color} !important;
        font-size: {fsize} !important;
    }}
    
    #chatbot {{
        background-color: {button_bg} !important;
        font-size: {fsize} !important;
    }}
    #chatbot .chatbot-message, 
    #chatbot .message {{
        background-color: {button_bg} !important;
        color: {text_color} !important;
        font-size: {fsize} !important;
    }}
    
    #user_input {{
        background-color: {button_bg} !important;
    }}
    #user_input textarea {{
        background-color: {input_bg} !important;
        color: {text_color} !important;
        font-size: {fsize} !important;
    }}
    #user_input textarea::placeholder {{
        color: {text_color} !important;
        font-size: {fsize} !important;
    }}
    
    #send_button {{
        background-color: {button_bg} !important;
        color: {text_color} !important;
        font-size: {fsize} !important;
    }}
    
    #settings_box {{
        background-color: {settings_box_bg} !important;
        padding: 10px;
        border-radius: 8px;
        font-size: {fsize} !important;
    }}
    #settings_box .gr-markdown h3 {{
        color: {settings_heading_color} !important;
        font-size: {fsize} !important;
    }}
    
    #settings_box .gr-radio-group, 
    #settings_box .gr-radio-group * {{
        background-color: {radio_bg} !important;
        color: {text_color} !important;
        font-size: {fsize} !important;
    }}
    
    /* Apply Settings button */
    #apply_settings_button {{
        background-color: {apply_button_bg} !important;
        color: {text_color} !important;
        font-size: {fsize} !important;
    }}
    
    div[role="tablist"] {{
        background-color: #8A2BE2 !important;
        border-radius: 8px;
        padding: {tab_padding} !important;
        height: auto !important;
        min-height: 0 !important;
    }}
    div[role="tab"] {{
        font-size: {fsize} !important;
        padding: {tab_padding} !important;
    }}
    </style>
    """
    return style

custom_css = """
@import url('https://fonts.googleapis.com/css2?family=Inter:wght@400;600&display=swap');
body, .gradio-container {
    margin: 0;
    padding: 0;
    font-family: 'Inter', sans-serif;
}
#header_section {
    width: 400px;
    height: 100px;
    background: url("https://huggingface.co/spaces/MusifyLTD/Musify/resolve/main/logo.png")
                no-repeat center center;
    background-size: contain;
    margin: 0px auto;
    margin-bottom: -10px;
}
#header_description {
    text-align: center;
    font-size: 20px;
    margin-top: -10px;
    margin-bottom: 10px;
}
#user_input textarea {
    border: none;
    padding: 10px;
    font-size: 1rem;
}
#user_input textarea::placeholder {
    font-size: 1rem;
    opacity: 0.73;
}
#user_input {
    height: 65px;
    border: none;
}
#send_button {
    margin-left: 1px;
    border: none;
    font-family: 'Inter', sans-serif;
    height: 67px;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 0 10px;
    font-size: 1rem;
}
div[role="tablist"] {
    background-color: #8A2BE2 !important;
    border-radius: 8px;
    padding: 5px;
}
"""
# Gradio build stuff actually starts here
with gr.Blocks(css=custom_css) as demo:
    dynamic_styles = gr.HTML(value=update_styles("Dark", "Medium"))
    
    with gr.Tabs():
        with gr.TabItem("💬 Chatbot"):
            gr.HTML('<div id="header_section"></div>')
            header_desc = gr.HTML('<p id="header_description">' + translations["English"]["header_description"] + '</p>')
            chatbot = gr.Chatbot(label="", height=400, show_label=False, elem_id="chatbot")
            with gr.Row():
                user_input = gr.Textbox(
                    show_label=False, 
                    lines=1,
                    placeholder=translations["English"]["user_input_placeholder"],
                    interactive=True,
                    elem_id="user_input",
                    scale=15
                )
                send_button = gr.Button(
                    value=translations["English"]["send_button"],
                    elem_id="send_button",
                    scale=1
                )
            send_button.click(
                fn=chat_with_bot_stream,
                inputs=user_input,
                outputs=chatbot
            ).then(
                fn=lambda: "",
                inputs=None,
                outputs=user_input
            )
        
        # SETTINGS PAGE
        with gr.TabItem("⚙️ Settings"):
            with gr.Column(elem_id="settings_box"):
                settings_md = gr.Markdown(translations["English"]["settings_markdown"])
                theme_radio = gr.Radio(
                    choices=translations["English"]["theme_choices"],
                    value="Dark",
                    label=translations["English"]["theme_label"]
                )
                font_radio = gr.Radio(
                    choices=translations["English"]["font_size_choices"],
                    value="Medium",
                    label=translations["English"]["font_size_label"]
                )
                language_radio = gr.Radio(
                    choices=translations["English"]["language_choices"],
                    value="English",
                    label=translations["English"]["select_language_label"]
                )
                apply_button = gr.Button(
                    translations["English"]["apply_settings_button"], 
                    elem_id="apply_settings_button"
                )
                apply_button.click(
                    fn=update_all_settings, 
                    inputs=[theme_radio, font_radio, language_radio], 
                    outputs=[
                        dynamic_styles, 
                        header_desc, 
                        user_input, 
                        send_button, 
                        settings_md, 
                        apply_button,
                        theme_radio,
                        font_radio,
                        language_radio
                    ]
                )
    
    demo.launch()