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app.py

@@ -1,489 +1,499 @@
-from dotenv import load_dotenv
-import streamlit as st
-import os
-import google.generativeai as genai
-import random
-from streamlit import session_state as state
-from formulas import email_formulas
-from angles import angles
-import re
-import datetime
-import PyPDF2
-import docx
-from PIL import Image
-
-# Cargar las variables de entorno
-load_dotenv()
-
-# Configurar la API de Google
-genai.configure(api_key=os.getenv("GOOGLE_API_KEY"))
-
-# Fórmulas con ejemplos y explicaciones
-# email_formulas dictionary has been moved to formulas/email_formulas.py
-
-# Cambiar el nombre de la función
-def generate_emails(target_audience, product, temperature, selected_formula, selected_angle, file_content="", image_parts=None, is_image=False, emotion="", desired_action="", creative_idea=""):
-    # Crear la configuración del modelo
-    generation_config = {
-        "temperature": temperature,
-        "top_p": 0.65,
-        "top_k": 360,
-        "max_output_tokens": 8196,
-    }
-
-    model = genai.GenerativeModel(
-        model_name="gemini-2.0-flash",
-        generation_config=generation_config,
-    )
-       
-    # Definir las instrucciones de formato una sola vez
-    format_instructions = """
-FORMAT RULES:
-- Each email must have a clear and attractive subject line
-- The email body must be persuasive and emotional
-- Include a clear call to action
-- Add a professional signature
-- Separate each email clearly
-- Do not include greetings like 'Hello [Name]'
-- Make sure that the postscripts (P.D.) are smaller and more discrete than the main body
-- IMPORTANT: The first email must be an introduction without referencing any previous communications
-- Emails 2-5 should build on the sequence in a logical progression
-"""
-    
-    # Incluir las instrucciones del sistema en el prompt principal
-    system_prompt = f"""You are a world-class direct response copywriter trained by Gary Halbert, Gary Bencivenga, and David Ogilvy.
-
-You have helped many marketers before me persuade their clients through emotional email sequences.
-Your task is to create a 5-email sequence that makes my [buyer persona] feel [emotion] about my [product/service] and convince them to register/take [desired action].
-
-{format_instructions}
-
-IMPORTANT:
-- Each email must be unique and memorable
-- Avoid clichés and generalities
-- Maintain a persuasive but credible tone
-- Adapt language to the target audience
-- Focus on transformative benefits"""
-
-    # Iniciar el prompt con las instrucciones del sistema
-    email_instruction = f"{system_prompt}\n\n"
-
-    # Añadir instrucciones para la idea creativa si existe
-    if creative_idea:
-        email_instruction += f"""
-CREATIVE CONCEPT:
-Use the following creative concept as the central theme for all emails in the sequence:
-"{creative_idea}"
-
-CREATIVE CONCEPT INSTRUCTIONS:
-1. This concept should be the unifying theme across all emails
-2. Use it as a metaphor or analogy throughout the sequence
-3. Develop different aspects of this concept in each email
-4. Make sure the concept naturally connects to the product benefits
-5. The concept should make the emails more memorable and engaging
-"""
-
-    # Añadir contenido del archivo si existe
-    if file_content:
-        email_instruction += f"""
-REFERENCE CONTENT:
-Carefully analyze the following content as a reference for generating emails:
-{file_content[:3000]}
-
-ANALYSIS INSTRUCTIONS:
-1. Extract key information about the product or service mentioned
-2. Identify the tone, style, and language used
-3. Detect any data about the target audience or customer avatar
-4. Look for benefits, features, or pain points mentioned
-5. Use relevant terms, phrases, or concepts from the content
-6. Maintain consistency with the brand identity or main message
-7. Adapt the emails to resonate with the provided content
-
-IMPORTANT COMBINATIONS:
-"""
-        # Updated conditions for specific input combinations
-        if product and not target_audience:
-            email_instruction += f"""- FILE + PRODUCT: You have a reference document and product ({product}). Create emails that highlight this specific product's benefits and features using insights from the document. Extract audience information from the document to better target the emails.
-"""
-        elif target_audience and not product:
-            email_instruction += f"""- FILE + TARGET AUDIENCE: You have a reference document and target audience ({target_audience}). Create emails tailored to this specific audience using language and concepts from the document. Identify products or services from the document that would appeal to this audience.
-"""
-        elif product and target_audience:
-            email_instruction += f"""- PRODUCT + TARGET AUDIENCE: You have both product ({product}) and target audience ({target_audience}). Create emails that connect this specific product with this specific audience, using insights from the document to strengthen the connection.
-"""
-        
-        email_instruction += """
-IMPORTANT: Naturally integrate the elements found in the content with the selected formula and angle.
-"""
-    
-    # Preparar instrucciones específicas del ángulo una sola vez
-    angle_instructions = ""
-    if selected_angle != "NINGUNO":
-        angle_instructions = f"""
-MAIN ANGLE: {selected_angle}
-SPECIFIC ANGLE INSTRUCTIONS:
-{angles[selected_angle]["instruction"]}
-
-IMPORTANT: The angle {selected_angle} must be applied as a "style layer" over the formula structure:
-1. Keep the base structure of the formula intact
-2. Apply the tone and style of the {selected_angle} angle
-3. Ensure each element of the formula reflects the angle
-4. The angle affects "how" it's said, not "what" is said
-
-SUCCESSFUL EXAMPLES OF THE {selected_angle} ANGLE:
-"""
-        for example in angles[selected_angle]["examples"]:
-            angle_instructions += f"- {example}\n"
-    
-    # Añadir las instrucciones del ángulo al prompt principal
-    email_instruction += angle_instructions
-    
-    # Dentro de la función, actualizar el prompt para incluir emoción y acción deseada
-    email_instruction += (
-    f"\nYour task is to create 5 persuasive emails for {target_audience} "
-    f"that evoke {emotion} and convince them to {desired_action} about {product}. "
-    )
-
-    # Usar la variable angle_instructions para determinar si hay un ángulo seleccionado
-    if angle_instructions:
-        email_instruction += f"IMPORTANT: Each email MUST follow the {selected_angle} angle clearly and consistently."
-
-    email_instruction += "\n\n"
-    
-    # Take the first 5 examples (or all if less than 5) in order
-    sequential_examples = selected_formula['examples'][:min(5, len(selected_formula['examples']))]
-
-    email_instruction += "FORMULA EXAMPLES TO FOLLOW:\n"
-    for i, example in enumerate(sequential_examples, 1):
-        email_instruction += f"{i}. {example}\n"
-
-    # Añadir instrucciones específicas sobre cómo seguir los ejemplos
-    email_instruction += "\nSPECIFIC INSTRUCTIONS:\n"
-    email_instruction += "1. Maintain the same structure and length as the previous examples\n"
-    email_instruction += "2. Use the same tone and writing style\n"
-    email_instruction += "3. Replicate the phrase construction patterns\n"
-    email_instruction += "4. Preserve the level of specificity and detail\n"
-    email_instruction += f"5. Adapt the content for {target_audience} while maintaining the essence of the examples\n\n"
-
-    # Añadir instrucciones específicas sobre la temperatura creativa
-    email_instruction += f"\nCREATIVITY LEVEL: {temperature}. Higher values mean more creative and original content.\n\n"
-
-    email_instruction += f"FORMULA TO FOLLOW:\n{selected_formula['description']}\n\n"
-
-    # Consolidar las instrucciones finales en un solo bloque
-    final_reminder = ["Follow the structure of the selected formula"]
-    
-    # Add angle-specific instructions only if an angle is selected
-    if selected_angle != "NINGUNO":
-        final_reminder.extend([
-            "Apply the angle as a 'style layer'",
-            "Maintain coherence between formula and angle",
-            "Ensure each email reflects both elements"
-        ])
-    
-    email_instruction += "\nFINAL REMINDER:\n"
-    for i, reminder in enumerate(final_reminder, 1):
-        email_instruction += f"{i}. {reminder}\n"
-    
-    email_instruction += "\nGENERATE NOW:\nCreate 5 emails that faithfully follow the style and structure of the examples shown.\n"
-    
-    # Modificar la forma de enviar el mensaje según si hay imagen o no
-    message_parts = [email_instruction]
-    
-    # Build instruction text more clearly with conditional components
-    instruction_components = ["Generate the emails in Spanish following exactly the style and structure of the examples shown."]
-    
-    # Add the image to the message parts if it exists
-    if is_image and image_parts:
-        message_parts.append(image_parts)
-        instruction_components.append("drawing inspiration from the provided image.")
-    
-    # Add final instruction
-    instruction_components.append("Do not include explanations, only the emails.")
-    
-    # Join all instruction components with proper spacing
-    instruction_text = " ".join(instruction_components)
-    
-    # Create the chat session with the message parts
-    try:
-        chat_session = model.start_chat(
-            history=[
-                {
-                    "role": "user",
-                    "parts": message_parts,
-                },
-            ]
-        )
-        
-        # Enviar el mensaje con las instrucciones
-        response = chat_session.send_message(instruction_text)
-        
-        return response.text
-    except genai.types.generation_types.StopCandidateException as e:
-        # Handle content filtering/safety issues
-        error_message = f"La generación se detuvo debido a restricciones de contenido: {str(e)}"
-        st.error(error_message)
-        return f"Error: {error_message}"
-    except genai.types.generation_types.BlockedPromptException as e:
-        # Handle blocked prompt issues
-        error_message = f"El prompt fue bloqueado por políticas de contenido: {str(e)}"
-        st.error(error_message)
-        return f"Error: {error_message}"
-    except Exception as e:
-        # Handle general API errors
-        error_message = f"Error al comunicarse con la API de Google: {str(e)}"
-        st.error(error_message)
-        return f"Error: {error_message}"
-
-# Define the clean_response_text function before it's used
-def clean_response_text(text):
-    """Remove extra spaces and normalize whitespace in the response text"""
-    # Replace multiple newlines with just two
-    text = re.sub(r'\n{3,}', '\n\n', text)
-    # Remove leading/trailing whitespace
-    text = text.strip()
-    return text
-
-# Configurar la interfaz de usuario con Streamlit
-st.set_page_config(
-    page_title="Email Composer", 
-    layout="wide",
-    menu_items={},  # Empty dict removes the three-dot menu
-    initial_sidebar_state="expanded"
-)
-
-# Add custom CSS to reduce margins
-st.markdown("""
-<style>
-    .main > div {
-        padding-top: 1rem;
-    }
-</style>
-""", unsafe_allow_html=True)
-
-# Leer el contenido del archivo manual.md
-manual_path = "manual.md"
-if os.path.exists(manual_path):
-    with open(manual_path, "r", encoding="utf-8") as file:
-        manual_content = file.read()
-    # Mostrar el contenido del manual en el sidebar
-    st.sidebar.markdown(manual_content)
-else:
-    st.sidebar.warning("Manual file not found.")
-
-# Load CSS from file
-css_path = "styles/main.css"
-if os.path.exists(css_path):
-    with open(css_path, "r") as f:
-        css = f.read()
-    # Apply the CSS
-    st.markdown(f"<style>{css}</style>", unsafe_allow_html=True)
-else:
-    st.warning("CSS file not found.")
-
-# Centrar el título y el subtítulo
-st.markdown("<h1 style='text-align: center;'>Generador de Emails</h1>", unsafe_allow_html=True)
-st.markdown("<h4 style='text-align: center;'>Transforma tu marketing con emails persuasivos que convierten. Esta aplicación es tu arma secreta para crear emails emocionales de respuesta directa que impulsan a la acción.</h4>", unsafe_allow_html=True)
-
-# Crear columnas
-col1, col2 = st.columns([1, 2])  
-
-# Initialize these variables at the top level before the UI components
-file_content = ""
-is_image = False
-image_parts = None
-
-# Columnas de entrada
-with col1:
-    target_audience = st.text_input("¿Quién es tu público objetivo?", placeholder="Ejemplo: Estudiantes Universitarios")
-    product = st.text_input("¿Qué producto/servicio estás promocionando?", placeholder="Ejemplo: Curso de Inglés")
-    
-    # Move "Acción deseada" outside the accordion
-    desired_action = st.text_input("Acción deseada", placeholder="Ejemplo: Registrarse para una prueba gratuita")
-    
-    # Move formula selection here, right after desired action
-    selected_formula_key = st.selectbox(
-        "Selecciona una fórmula para tus emails",
-        options=list(email_formulas.email_formulas.keys()),
-        key="formula_selectbox"  # Add a unique key
-    )
-    
-    # Only one submit button with a unique key
-    submit = st.button("Generar Emails", key="generate_emails_button")
-
-    # Crear un único acordeón para fórmula, creatividad y ángulo
-    with st.expander("Personaliza tus emails"):
-        # 1. Idea Creativa al principio con altura de 70px
-        creative_idea = st.text_area("Idea Creativa", placeholder="Ejemplo: Tu curso es como Netflix: ofrece contenido que engancha y soluciones que la gente realmente quiere ver", height=70)
-        
-        # 2. Lo demás (cargador de archivos)
-        uploaded_file = st.file_uploader("📄 Archivo o imagen de referencia", 
-                                        type=['txt', 'pdf', 'docx', 'jpg', 'jpeg', 'png'])
-        
-        file_content = ""
-        is_image = False
-        image_parts = None
-        
-        if uploaded_file is not None:
-            # El código para manejar archivos permanece igual
-            file_type = uploaded_file.name.split('.')[-1].lower()
-            
-            # Manejar archivos de texto
-            if file_type in ['txt', 'pdf', 'docx']:
-                # El código para manejar archivos de texto permanece igual
-                # ...
-                if file_type == 'txt':
-                    try:
-                        file_content = uploaded_file.read().decode('utf-8')
-                        st.success(f"Archivo TXT cargado correctamente: {uploaded_file.name}")
-                    except Exception as e:
-                        st.error(f"Error al leer el archivo TXT: {str(e)}")
-                        file_content = ""
-                
-                elif file_type == 'pdf':
-                    try:
-                        import PyPDF2
-                        pdf_reader = PyPDF2.PdfReader(uploaded_file)
-                        file_content = ""
-                        for page in pdf_reader.pages:
-                            file_content += page.extract_text() + "\n"
-                        st.success(f"Archivo PDF cargado correctamente: {uploaded_file.name}")
-                    except Exception as e:
-                        st.error(f"Error al leer el archivo PDF: {str(e)}")
-                        file_content = ""
-                        
-                elif file_type == 'docx':
-                    try:
-                        import docx
-                        doc = docx.Document(uploaded_file)
-                        file_content = "\n".join([para.text for para in doc.paragraphs])
-                        st.success(f"Archivo DOCX cargado correctamente: {uploaded_file.name}")
-                    except Exception as e:
-                        st.error(f"Error al leer el archivo DOCX: {str(e)}")
-                        file_content = ""
-            
-            # Manejar archivos de imagen
-            elif file_type in ['jpg', 'jpeg', 'png']:
-                try:
-                    from PIL import Image
-                    image = Image.open(uploaded_file)
-                    image_bytes = uploaded_file.getvalue()
-                    image_parts = {
-                        "mime_type": uploaded_file.type,
-                        "data": image_bytes
-                    }
-                    is_image = True
-                    st.image(image, caption="Imagen cargada", use_column_width=True)
-                except Exception as e:
-                    st.error(f"Error processing image: {str(e)}")
-                    is_image = False
-        
-        # 4. Ángulo
-        angle_keys = ["NINGUNO"] + sorted([key for key in angles.keys() if key != "NINGUNO"])
-        selected_angle = st.selectbox(
-            "Selecciona un ángulo para tus emails",
-            options=angle_keys,
-            key="angle_selectbox"  # Add a unique key
-        )
-        
-        # 5. Emoción
-        emotion = st.selectbox(
-            "¿Qué emoción quieres evocar?",
-            options=["Curiosidad", "Miedo", "Esperanza", "Entusiasmo", "Confianza", "Urgencia"],
-            key="emotion_selectbox"  # Add a unique key
-        )
-        
-        # 6. Creatividad (slider)
-        temperature = st.slider("Creatividad", min_value=0.0, max_value=2.0, value=1.0, step=0.1)
-
-    selected_formula = email_formulas.email_formulas[selected_formula_key]  # Updated reference
-
-    # Removed the submit button from here
-# Define a function to validate inputs
-def validate_inputs(file_content, product, target_audience, emotion, desired_action):
-    """
-    Validates input combinations and returns a tuple of (is_valid, error_message)
-    """
-    has_file = file_content.strip() != "" if file_content else False
-    has_product = product.strip() != ""
-    has_audience = target_audience.strip() != ""
-    has_emotion = emotion.strip() != "" if emotion else False
-    has_action = desired_action.strip() != "" if desired_action else False
-    
-    # Check for valid combinations
-    if has_file and has_product:
-        return True, ""  # File + Product is valid
-    elif has_file and has_audience:
-        return True, ""  # File + Audience is valid
-    elif has_product and has_audience and has_emotion and has_action:
-        return True, ""  # Product + Audience + Emotion + Action is valid
-    
-    # If we get here, no valid combination was found
-    if not (has_emotion and has_action):
-        return False, "Por favor especifica la emoción que quieres evocar y la acción deseada."
-    else:
-        return False, "Por favor proporciona al menos una de estas combinaciones: archivo + producto, archivo + público objetivo, o producto + público objetivo + emoción + acción deseada."
-
-# Mostrar los emails generados
-if submit:
-    # Validate inputs using the new function
-    is_valid, error_message = validate_inputs(
-        file_content, 
-        product, 
-        target_audience, 
-        emotion, 
-        desired_action
-    )
-    
-    if is_valid and selected_formula:
-        try:
-            # Use spinner within col2 context
-            with col2:
-                with st.spinner("Creando los emails..."):
-                    # Update the function call to include creative_idea
-                    generated_emails = generate_emails(
-                        target_audience,
-                        product,
-                        temperature,
-                        selected_formula,
-                        selected_angle,
-                        file_content,
-                        image_parts,
-                        is_image,
-                        emotion,
-                        desired_action,
-                        creative_idea  # Add the creative idea parameter
-                    )
-                    
-                    # Check if the response starts with "Error:"
-                    if generated_emails.startswith("Error:"):
-                        st.error(generated_emails)
-                    else:
-                        # Clean the response text to remove extra spaces
-                        generated_emails = clean_response_text(generated_emails)
-                    
-                        # Display the generated emails in col2 (still within col2 context)
-                        st.markdown(f"""
-                            <div class="results-container">
-                                <h4>Tus emails persuasivos:</h4>
-                                <p>{generated_emails}</p>
-                            </div>
-                        """, unsafe_allow_html=True)
-                        
-                        # Get current timestamp for the filename
-                        timestamp = datetime.datetime.now().strftime("%Y%m%d_%H%M%S")
-                        
-                        # Download button
-                        st.download_button(
-                            label="DESCARGAR EMAILS",
-                            data=generated_emails,
-                            file_name=f"emails_persuasivos_{timestamp}.txt",
-                            mime="text/plain"
-                        )
-        except Exception as e:
-            col2.error(f"Error: {str(e)}")
-    else:
-        if not selected_formula:
-            col2.error("Por favor selecciona una fórmula.")
-        else:
-            col2.error(error_message)
+from dotenv import load_dotenv
+import streamlit as st
+import os
+import google.generativeai as genai
+import random
+from streamlit import session_state as state
+from formulas import email_formulas
+from angles import angles
+import re
+import datetime
+import PyPDF2
+import docx
+from PIL import Image
+
+# Cargar las variables de entorno
+load_dotenv()
+
+# Configurar la API de Google
+genai.configure(api_key=os.getenv("GOOGLE_API_KEY"))
+
+# Fórmulas con ejemplos y explicaciones
+# email_formulas dictionary has been moved to formulas/email_formulas.py
+
+# Cambiar el nombre de la función
+def generate_emails(target_audience, product, temperature, selected_formula, selected_angle, file_content="", image_parts=None, is_image=False, emotion="", desired_action="", creative_idea=""):
+    # Crear la configuración del modelo
+    generation_config = {
+        "temperature": temperature,
+        "top_p": 0.65,
+        "top_k": 360,
+        "max_output_tokens": 8196,
+    }
+
+    model = genai.GenerativeModel(
+        model_name="gemini-2.0-flash",
+        generation_config=generation_config,
+    )
+       
+    # Definir las instrucciones de formato una sola vez
+    format_instructions = """
+FORMAT RULES:
+- Each email must have a clear and attractive subject line
+- The email body must be persuasive and emotional
+- Include a clear call to action
+- Add a professional signature
+- Separate each email clearly
+- Do not include greetings like 'Hello [Name]'
+- Make sure that the postscripts (P.D.) are smaller and more discrete than the main body
+- IMPORTANT: The first email must be an introduction without referencing any previous communications
+- Emails 2-5 should build on the sequence in a logical progression
+"""
+    
+    # Incluir las instrucciones del sistema en el prompt principal
+    system_prompt = f"""You are a world-class direct response copywriter trained by Gary Halbert, Gary Bencivenga, and David Ogilvy.
+
+You have helped many marketers before me persuade their clients through emotional email sequences.
+Your task is to create a 5-email sequence that makes my [buyer persona] feel [emotion] about my [product/service] and convince them to register/take [desired action].
+
+{format_instructions}
+
+IMPORTANT:
+- Each email must be unique and memorable
+- Avoid clichés and generalities
+- Maintain a persuasive but credible tone
+- Adapt language to the target audience
+- Focus on transformative benefits"""
+
+    # Iniciar el prompt con las instrucciones del sistema
+    email_instruction = f"{system_prompt}\n\n"
+
+    # Añadir instrucciones para la idea creativa si existe
+    if creative_idea:
+        email_instruction += f"""
+CREATIVE CONCEPT:
+Use the following creative concept as the central theme for all emails in the sequence:
+"{creative_idea}"
+
+CREATIVE CONCEPT INSTRUCTIONS:
+1. This concept should be the unifying theme across all emails
+2. Use it as a metaphor or analogy throughout the sequence
+3. Develop different aspects of this concept in each email
+4. Make sure the concept naturally connects to the product benefits
+5. The concept should make the emails more memorable and engaging
+"""
+
+    # Añadir contenido del archivo si existe
+    if file_content:
+        email_instruction += f"""
+REFERENCE CONTENT:
+Carefully analyze the following content as a reference for generating emails:
+{file_content[:3000]}
+
+ANALYSIS INSTRUCTIONS:
+1. Extract key information about the product or service mentioned
+2. Identify the tone, style, and language used
+3. Detect any data about the target audience or customer avatar
+4. Look for benefits, features, or pain points mentioned
+5. Use relevant terms, phrases, or concepts from the content
+6. Maintain consistency with the brand identity or main message
+7. Adapt the emails to resonate with the provided content
+
+IMPORTANT COMBINATIONS:
+"""
+        # Updated conditions for specific input combinations
+        if product and not target_audience:
+            email_instruction += f"""- FILE + PRODUCT: You have a reference document and product ({product}). Create emails that highlight this specific product's benefits and features using insights from the document. Extract audience information from the document to better target the emails.
+"""
+        elif target_audience and not product:
+            email_instruction += f"""- FILE + TARGET AUDIENCE: You have a reference document and target audience ({target_audience}). Create emails tailored to this specific audience using language and concepts from the document. Identify products or services from the document that would appeal to this audience.
+"""
+        elif product and target_audience:
+            email_instruction += f"""- PRODUCT + TARGET AUDIENCE: You have both product ({product}) and target audience ({target_audience}). Create emails that connect this specific product with this specific audience, using insights from the document to strengthen the connection.
+"""
+        
+        email_instruction += """
+IMPORTANT: Naturally integrate the elements found in the content with the selected formula and angle.
+"""
+    
+    # Preparar instrucciones específicas del ángulo una sola vez
+    angle_instructions = ""
+    if selected_angle != "NINGUNO":
+        angle_instructions = f"""
+MAIN ANGLE: {selected_angle}
+SPECIFIC ANGLE INSTRUCTIONS:
+{angles[selected_angle]["instruction"]}
+
+IMPORTANT: The angle {selected_angle} must be applied as a "style layer" over the formula structure:
+1. Keep the base structure of the formula intact
+2. Apply the tone and style of the {selected_angle} angle
+3. Ensure each element of the formula reflects the angle
+4. The angle affects "how" it's said, not "what" is said
+
+SUCCESSFUL EXAMPLES OF THE {selected_angle} ANGLE:
+"""
+        for example in angles[selected_angle]["examples"]:
+            angle_instructions += f"- {example}\n"
+    
+    # Añadir las instrucciones del ángulo al prompt principal
+    email_instruction += angle_instructions
+    
+    # Dentro de la función, actualizar el prompt para incluir emoción y acción deseada
+    email_instruction += (
+    f"\nYour task is to create 5 persuasive emails for {target_audience} "
+    f"that evoke {emotion} and convince them to {desired_action} about {product}. "
+    )
+
+    # Usar la variable angle_instructions para determinar si hay un ángulo seleccionado
+    if angle_instructions:
+        email_instruction += f"IMPORTANT: Each email MUST follow the {selected_angle} angle clearly and consistently."
+
+    email_instruction += "\n\n"
+    
+    # Take the first 5 examples (or all if less than 5) in order
+    sequential_examples = selected_formula['examples'][:min(5, len(selected_formula['examples']))]
+
+    email_instruction += "FORMULA EXAMPLES TO FOLLOW:\n"
+    for i, example in enumerate(sequential_examples, 1):
+        email_instruction += f"{i}. {example}\n"
+
+    # Añadir instrucciones específicas sobre cómo seguir los ejemplos
+    email_instruction += "\nSPECIFIC INSTRUCTIONS:\n"
+    email_instruction += "1. Maintain the same structure and length as the previous examples\n"
+    email_instruction += "2. Use the same tone and writing style\n"
+    email_instruction += "3. Replicate the phrase construction patterns\n"
+    email_instruction += "4. Preserve the level of specificity and detail\n"
+    email_instruction += f"5. Adapt the content for {target_audience} while maintaining the essence of the examples\n\n"
+
+    # Añadir instrucciones específicas sobre la temperatura creativa
+    email_instruction += f"\nCREATIVITY LEVEL: {temperature}. Higher values mean more creative and original content.\n\n"
+
+    email_instruction += f"FORMULA TO FOLLOW:\n{selected_formula['description']}\n\n"
+
+    # Consolidar las instrucciones finales en un solo bloque
+    final_reminder = ["Follow the structure of the selected formula"]
+    
+    # Add angle-specific instructions only if an angle is selected
+    if selected_angle != "NINGUNO":
+        final_reminder.extend([
+            "Apply the angle as a 'style layer'",
+            "Maintain coherence between formula and angle",
+            "Ensure each email reflects both elements"
+        ])
+    
+    email_instruction += "\nFINAL REMINDER:\n"
+    for i, reminder in enumerate(final_reminder, 1):
+        email_instruction += f"{i}. {reminder}\n"
+    
+    email_instruction += "\nGENERATE NOW:\nCreate 5 emails that faithfully follow the style and structure of the examples shown.\n"
+    
+    # Modificar la forma de enviar el mensaje según si hay imagen o no
+    message_parts = [email_instruction]
+    
+    # Build instruction text more clearly with conditional components
+    instruction_components = ["Generate the emails in Spanish following exactly the style and structure of the examples shown."]
+    
+    # Add the image to the message parts if it exists
+    if is_image and image_parts:
+        message_parts.append(image_parts)
+        instruction_components.append("drawing inspiration from the provided image.")
+    
+    # Add final instruction
+    instruction_components.append("Do not include explanations, only the emails.")
+    
+    # Join all instruction components with proper spacing
+    instruction_text = " ".join(instruction_components)
+    
+    # Create the chat session with the message parts
+    try:
+        chat_session = model.start_chat(
+            history=[
+                {
+                    "role": "user",
+                    "parts": message_parts,
+                },
+            ]
+        )
+        
+        # Enviar el mensaje con las instrucciones
+        response = chat_session.send_message(instruction_text)
+        
+        return response.text
+    except genai.types.generation_types.StopCandidateException as e:
+        # Handle content filtering/safety issues
+        error_message = f"La generación se detuvo debido a restricciones de contenido: {str(e)}"
+        st.error(error_message)
+        return f"Error: {error_message}"
+    except genai.types.generation_types.BlockedPromptException as e:
+        # Handle blocked prompt issues
+        error_message = f"El prompt fue bloqueado por políticas de contenido: {str(e)}"
+        st.error(error_message)
+        return f"Error: {error_message}"
+    except Exception as e:
+        # Handle general API errors
+        error_message = f"Error al comunicarse con la API de Google: {str(e)}"
+        st.error(error_message)
+        return f"Error: {error_message}"
+
+# Define the clean_response_text function before it's used
+def clean_response_text(text):
+    """Remove extra spaces and normalize whitespace in the response text"""
+    # Replace multiple newlines with just two
+    text = re.sub(r'\n{3,}', '\n\n', text)
+    # Remove leading/trailing whitespace
+    text = text.strip()
+    return text
+
+# Configurar la interfaz de usuario con Streamlit
+st.set_page_config(
+    page_title="Email Composer", 
+    layout="wide",
+    menu_items={},  # Empty dict removes the three-dot menu
+    initial_sidebar_state="expanded"
+)
+
+# Add custom CSS to reduce margins
+st.markdown("""
+<style>
+    .main > div {
+        padding-top: 1rem;
+    }
+</style>
+""", unsafe_allow_html=True)
+
+# Leer el contenido del archivo manual.md
+manual_path = "manual.md"
+if os.path.exists(manual_path):
+    with open(manual_path, "r", encoding="utf-8") as file:
+        manual_content = file.read()
+    # Mostrar el contenido del manual en el sidebar
+    st.sidebar.markdown(manual_content)
+else:
+    st.sidebar.warning("Manual file not found.")
+
+# Load CSS from file
+css_path = "styles/main.css"
+if os.path.exists(css_path):
+    with open(css_path, "r") as f:
+        css = f.read()
+    # Apply the CSS
+    st.markdown(f"<style>{css}</style>", unsafe_allow_html=True)
+else:
+    st.warning("CSS file not found.")
+
+# Centrar el título y el subtítulo
+st.markdown("<h1 style='text-align: center;'>Generador de Emails</h1>", unsafe_allow_html=True)
+st.markdown("<h4 style='text-align: center;'>Transforma tu marketing con emails persuasivos que convierten. Esta aplicación es tu arma secreta para crear emails emocionales de respuesta directa que impulsan a la acción.</h4>", unsafe_allow_html=True)
+
+# Crear columnas
+col1, col2 = st.columns([1, 2])  
+
+# Initialize these variables at the top level before the UI components
+file_content = ""
+is_image = False
+image_parts = None
+
+# Columnas de entrada
+with col1:
+    target_audience = st.text_input("¿Quién es tu público objetivo?", placeholder="Ejemplo: Estudiantes Universitarios")
+    product = st.text_input("¿Qué producto/servicio estás promocionando?", placeholder="Ejemplo: Curso de Inglés")
+    
+    # Move "Acción deseada" outside the accordion
+    desired_action = st.text_input("Acción deseada", placeholder="Ejemplo: Registrarse para una prueba gratuita")
+    
+    # Move formula selection here, right after desired action
+    selected_formula_key = st.selectbox(
+        "Selecciona una fórmula para tus emails",
+        options=list(email_formulas.email_formulas.keys()),
+        key="formula_selectbox"  # Add a unique key
+    )
+    
+    # Only one submit button with a unique key
+    submit = st.button("Generar Emails", key="generate_emails_button")
+
+    # Crear un único acordeón para fórmula, creatividad y ángulo
+    with st.expander("Personaliza tus emails"):
+        # 1. Idea Creativa al principio con altura de 70px
+        creative_idea = st.text_area("Idea Creativa", placeholder="Ejemplo: Tu curso es como Netflix: ofrece contenido que engancha y soluciones que la gente realmente quiere ver", height=70)
+        
+        # 2. Lo demás (cargador de archivos)
+        uploaded_file = st.file_uploader("📄 Archivo o imagen de referencia", 
+                                        type=['txt', 'pdf', 'docx', 'jpg', 'jpeg', 'png'])
+        
+        file_content = ""
+        is_image = False
+        image_parts = None
+        
+        if uploaded_file is not None:
+            # El código para manejar archivos permanece igual
+            file_type = uploaded_file.name.split('.')[-1].lower()
+            
+            # Manejar archivos de texto
+            if file_type in ['txt', 'pdf', 'docx']:
+                # El código para manejar archivos de texto permanece igual
+                # ...
+                if file_type == 'txt':
+                    try:
+                        file_content = uploaded_file.read().decode('utf-8')
+                        st.success(f"Archivo TXT cargado correctamente: {uploaded_file.name}")
+                    except Exception as e:
+                        st.error(f"Error al leer el archivo TXT: {str(e)}")
+                        file_content = ""
+                
+                elif file_type == 'pdf':
+                    try:
+                        import PyPDF2
+                        pdf_reader = PyPDF2.PdfReader(uploaded_file)
+                        file_content = ""
+                        for page in pdf_reader.pages:
+                            file_content += page.extract_text() + "\n"
+                        st.success(f"Archivo PDF cargado correctamente: {uploaded_file.name}")
+                    except Exception as e:
+                        st.error(f"Error al leer el archivo PDF: {str(e)}")
+                        file_content = ""
+                        
+                elif file_type == 'docx':
+                    try:
+                        import docx
+                        doc = docx.Document(uploaded_file)
+                        file_content = "\n".join([para.text for para in doc.paragraphs])
+                        st.success(f"Archivo DOCX cargado correctamente: {uploaded_file.name}")
+                    except Exception as e:
+                        st.error(f"Error al leer el archivo DOCX: {str(e)}")
+                        file_content = ""
+            
+            # Manejar archivos de imagen
+            elif file_type in ['jpg', 'jpeg', 'png']:
+                try:
+                    from PIL import Image
+                    image = Image.open(uploaded_file)
+                    image_bytes = uploaded_file.getvalue()
+                    image_parts = {
+                        "mime_type": uploaded_file.type,
+                        "data": image_bytes
+                    }
+                    is_image = True
+                    st.image(image, caption="Imagen cargada", use_column_width=True)
+                except Exception as e:
+                    st.error(f"Error processing image: {str(e)}")
+                    is_image = False
+        
+        # 4. Ángulo
+        angle_keys = ["NINGUNO"] + sorted([key for key in angles.keys() if key != "NINGUNO"])
+        selected_angle = st.selectbox(
+            "Selecciona un ángulo para tus emails",
+            options=angle_keys,
+            key="angle_selectbox"  # Add a unique key
+        )
+        
+        # 5. Emoción
+        emotion = st.selectbox(
+            "¿Qué emoción quieres evocar?",
+            options=["Curiosidad", "Miedo", "Esperanza", "Entusiasmo", "Confianza", "Urgencia"],
+            key="emotion_selectbox"  # Add a unique key
+        )
+        
+        # 6. Creatividad (slider)
+        temperature = st.slider("Creatividad", min_value=0.0, max_value=2.0, value=1.0, step=0.1)
+
+    selected_formula = email_formulas.email_formulas[selected_formula_key]  # Updated reference
+
+    # Removed the submit button from here
+# Define a function to validate inputs
+def validate_inputs(file_content, product, target_audience, emotion, desired_action):
+    """
+    Validates input combinations and returns a tuple of (is_valid, error_message)
+    """
+    has_file = file_content.strip() != "" if file_content else False
+    has_product = product.strip() != ""
+    has_audience = target_audience.strip() != ""
+    has_emotion = emotion.strip() != "" if emotion else False
+    has_action = desired_action.strip() != "" if desired_action else False
+    
+    # Check for valid combinations
+    if has_file and has_product:
+        return True, ""  # File + Product is valid
+    elif has_file and has_audience:
+        return True, ""  # File + Audience is valid
+    elif has_product and has_audience and has_emotion and has_action:
+        return True, ""  # Product + Audience + Emotion + Action is valid
+    
+    # If we get here, no valid combination was found
+    if not (has_emotion and has_action):
+        return False, "Por favor especifica la emoción que quieres evocar y la acción deseada."
+    else:
+        return False, "Por favor proporciona al menos una de estas combinaciones: archivo + producto, archivo + público objetivo, o producto + público objetivo + emoción + acción deseada."
+
+# Mostrar los emails generados
+if submit:
+    # Validate inputs using the new function
+    is_valid, error_message = validate_inputs(
+        file_content, 
+        product, 
+        target_audience, 
+        emotion, 
+        desired_action
+    )
+    
+    if is_valid and selected_formula:
+        try:
+            # Use spinner within col2 context
+            with col2:
+                with st.spinner("Creando los emails..."):
+                    # Update the function call to include creative_idea
+                    generated_emails = generate_emails(
+                        target_audience,
+                        product,
+                        temperature,
+                        selected_formula,
+                        selected_angle,
+                        file_content,
+                        image_parts,
+                        is_image,
+                        emotion,
+                        desired_action,
+                        creative_idea  # Add the creative idea parameter
+                    )
+                    
+                    # Check if the response starts with "Error:"
+                    if generated_emails.startswith("Error:"):
+                        st.error(generated_emails)
+                    else:
+                        # Clean the response text to remove extra spaces
+                        generated_emails = clean_response_text(generated_emails)
+                        
+                        # Get current timestamp for the filename
+                        timestamp = datetime.datetime.now().strftime("%Y%m%d_%H%M%S")
+                        
+                        # Add a download button ABOVE the results
+                        st.download_button(
+                            label="DESCARGAR EMAILS",
+                            data=generated_emails,
+                            file_name=f"emails_persuasivos_{timestamp}.txt",
+                            mime="text/plain",
+                            key="download_top"  # Unique key for the top button
+                        )
+                        
+                        # Display the generated emails in col2 (still within col2 context)
+                        st.markdown(f"""
+                            <div class="results-container">
+                                <h4>Tus emails persuasivos:</h4>
+                                <p>{generated_emails}</p>
+                            </div>
+                        """, unsafe_allow_html=True)
+                        
+                        # Download button at the bottom (same as before but with a different key)
+                        st.download_button(
+                            label="DESCARGAR EMAILS",
+                            data=generated_emails,
+                            file_name=f"emails_persuasivos_{timestamp}.txt",
+                            mime="text/plain",
+                            key="download_bottom"  # Unique key for the bottom button
+                        )
+        except Exception as e:
+            col2.error(f"Error: {str(e)}")
+    else:
+        if not selected_formula:
+            col2.error("Por favor selecciona una fórmula.")
+        else:
+            col2.error(error_message)

styles/main.css

@@ -42,6 +42,7 @@ div.stButton > button:hover {
     padding: 15px; 
     border-radius: 8px; 
     background-color: #ffffff;
+    margin-bottom: 20px;
 }
 
 /* Email content styling */
@@ -65,15 +66,28 @@ div.stButton > button:hover {
 .results-container p i {
     font-size: 1rem;
 }
-/* Download button styling */
+
+/* Download button styling - updated to green gradient */
 .stDownloadButton button {
-    background: linear-gradient(to right, #FFD700, #FFA500);
-    color: black;
+    background: linear-gradient(to right, #4CAF50, #45a049);
+    color: white;
     font-weight: bold;
     border: none;
     width: 80%;
     margin: 20px auto;  /* Add top and bottom margin */
     display: block;
+    transition: transform 0.3s ease, box-shadow 0.3s ease;
+    box-shadow: 0 2px 5px rgba(0,0,0,0.2);
+}
+
+/* Download button hover effect */
+.stDownloadButton button:hover {
+    box-shadow: 0 4px 8px rgba(0,0,0,0.3);
+}
+
+/* Download button click animation */
+.stDownloadButton button:active {
+    transform: scale(0.95);
 }
 
 /* Results container styling */