app.py

from dotenv import load_dotenv
import streamlit as st
import os
import google.generativeai as genai

load_dotenv()

genai.configure(api_key=os.getenv("GOOGLE_API_KEY"))

# Función para obtener respuesta del modelo Gemini (P.A.S.A)
def get_pasa_response(target_audience, product, action, mood, length):
    model = genai.GenerativeModel("gemini-1.5-flash")
    full_prompt = f"""
    You are a skilled copywriter and storyteller. Create a persuasive story in Spanish following the P.A.S.A. formula (Problema, Agitación, Solución, Acción). 
    Do not explicitly label or explain each section (Problema, Agitación, Solución, Acción). Instead, weave these elements naturally into a cohesive, flowing narrative that emotionally connects with the {target_audience}.
    The story should have {length} words, with a {mood} tone. Here are the details:
    1. Problema: Describe a specific problem that keeps the {target_audience} awake at night.
    2. Agitación: Amplify the emotional and practical consequences of this problem.
    3. Solución: Highlight how the product '{product}' solves this problem and improves their life.
    4. Acción: Adapt the provided call-to-action '{action}' and craft it in a way that motivates the reader to take immediate steps, using compelling language that encourages them to act.
    Write a cohesive, engaging, and emotionally resonant narrative tailored to connect with the {target_audience}.
    """
    response = model.generate_content([full_prompt])
    if response and response.parts:
        text = response.parts[0].text
        return text.strip()
    else:
        raise ValueError("Lo sentimos, intenta con una combinación diferente de entradas.")

# Función para obtener respuesta del modelo Gemini (A.D.P.)
def get_adp_response(target_audience, product, action, mood, length):
    model = genai.GenerativeModel("gemini-1.5-flash")
    full_prompt = f"""
    You are a skilled copywriter and storyteller. Create a creative and persuasive story in Spanish following the A.D.P. formula (Antes, Después, Puente). 
    Do not explicitly label or explain each section (Antes, Después, Puente). Instead, weave these elements naturally into a cohesive, flowing narrative that emotionally connects with the {target_audience}.
    The story should always be written in the second person (using 'tú') and should have unexpected twists to engage the {target_audience}. 
    The story should have {length} words, with a {mood} tone. Here are the details:

    1. Antes: Describe the current problem and frustrations that you {target_audience} are facing. Create an immersive situation where the reader can recognize themselves.
    2. Después: Paint a desired scenario where the problem of {target_audience} is solved and the benefits are clearly evident. Use a surprising twist to show how life can change.
    3. Puente: Introduce your solution '{product}' as the logical bridge between your frustration and the desired result. Make sure to emphasize the transformation you’ll experience if you take action '{action}'. Conclude with a compelling call to action '{action}' inviting the reader to take immediate steps to improve their situation.
    Ensure that the story has a creative flow with unexpected turns and keeps the reader hooked, motivating them to act at the end.
    Write a cohesive, engaging, and emotionally resonant narrative tailored to connect deeply with you, the {target_audience}.
    """
    response = model.generate_content([full_prompt])
    if response and response.parts:
        text = response.parts[0].text
        return text.strip()
    else:
        raise ValueError("Lo sentimos, intenta con una combinación diferente de entradas.")

# Función para obtener respuesta del modelo Gemini (G.H.A.)
def get_gha_response(target_audience, product, action, mood, length, story_topic):
    model = genai.GenerativeModel("gemini-1.5-flash")
    full_prompt = f"""
    You are a skilled copywriter and storyteller. Create a persuasive story in Spanish following the G.H.A. formula (Gancho, Historia, Acción). 
    Do not explicitly label or explain each section (Gancho, Historia, Acción). Instead, weave these elements naturally into a cohesive, flowing narrative that emotionally connects with the {target_audience}.
    The story should have {length} words, with a {mood} tone. Here are the details:
    1. Gancho: Start with an attention-grabbing hook that immediately captures the {target_audience}'s interest. It can be a question, a surprising fact, or a statement that challenges their beliefs.
    2. Historia: Tell an engaging and emotional story about {story_topic}. This can be personal or fictional, but should always have a meaningful lesson or takeaway for the reader.
    3. Acción: Conclude with a strong call-to-action, motivating the reader to take a specific step based on the insights from the story. Make the call-to-action compelling and clear, prompting immediate action.
    Write a cohesive, engaging, and emotionally resonant narrative tailored to connect with the {target_audience}.
    """
    response = model.generate_content([full_prompt])
    if response and response.parts:
        text = response.parts[0].text
        return text.strip()
    else:
        raise ValueError("Lo sentimos, intenta con una combinación diferente de entradas.")

# Inicializar la aplicación Streamlit
st.set_page_config(page_title="Generador de Historias", page_icon=":pencil:", layout="wide")

st.markdown("<h1 style='text-align: center;'>Generador de Historias</h1>", unsafe_allow_html=True)
st.markdown("<h3 style='text-align: center;'>Crea historias persuasivas con inteligencia artificial, diseñadas para conectar emocionalmente con tu audiencia.</h3>", unsafe_allow_html=True)

# Crear el selector para elegir la fórmula
formula = st.radio("Selecciona la fórmula para generar tu historia:", ["P.A.S.A.", "A.D.P.", "G.H.A."])

# Crear las columnas para el diseño (40% para la izquierda, 60% para la derecha)
col1, col2 = st.columns([2, 3])

# Entradas del usuario en la columna izquierda (col1)
with col1:
    target_audience = st.text_input("Público objetivo", placeholder="¿A quién está dirigido tu mensaje?")
    product = st.text_input("Producto/Servicio", placeholder="¿Qué estás ofreciendo?")
    action = st.text_area("Llamado a la acción", placeholder="¿Qué acción específica debe tomar tu audiencia?")

    # Personalización adicional
    with st.expander("Personaliza tu historia"):
        mood = st.selectbox("Tono de la historia:", ["Emocional", "Triste", "Feliz", "Horror", "Comedia", "Romántico"])
        length = st.slider("Longitud de la historia (palabras):", min_value=50, max_value=200, value=150, step=10)

    if formula == "G.H.A.":
        story_topic = st.text_area("De qué quieres que trate la historia", placeholder="Explica si hay algo específico sobre lo que te gustaría contar (puede ser una vivencia personal, película, cuento, personaje ficticio, etc.).")

    # Botón para generar contenido
    submit = st.button("Generar mi historia")

# Mostrar el contenido generado en la columna derecha (col2)
with col2:
    if submit:
        if target_audience and product and action:
            try:
                if formula == "P.A.S.A.":
                    response = get_pasa_response(target_audience, product, action, mood, length)
                elif formula == "A.D.P.":
                    response = get_adp_response(target_audience, product, action, mood, length)
                elif formula == "G.H.A.":
                    if story_topic:
                        response = get_gha_response(target_audience, product, action, mood, length, story_topic)
                    else:
                        st.error("Por favor, completa todos los campos requeridos para la fórmula G.H.A.")
                        response = ""
                
                if response:
                    st.subheader("Historia generada:")
                    st.write(response)
            except ValueError as e:
                st.error(f"Error: {str(e)}")
        else:
            st.error("Por favor, completa todos los campos requeridos (Público objetivo, Producto y Acción).")