ScriptGenerator

from generators.script_generator import ScriptGenerator

script_gen = ScriptGenerator()

def __init__(self)

def generate_scripts(content_data: Dict, language: str = "english", 
                     tone: str = "formal") -> Dict

{
  "topic": "Newton's Laws of Motion",
  "total_duration": 35.5,
  "language": "english",
  "slide_scripts": [
    {
      "slide_number": 1,
      "start_time": 0.0,
      "end_time": 6.0,
      "narration_text": "Welcome! Today we'll explore Newton's Laws of Motion..."
    },
    {
      "slide_number": 2,
      "start_time": 6.0,
      "end_time": 12.5,
      "narration_text": "The first law states that an object at rest stays at rest..."
    }
  ]
}

class SlideScript(BaseModel):
    slide_number: int = Field(description="Slide number")
    start_time: float = Field(description="Start time in seconds from beginning")
    end_time: float = Field(description="End time in seconds")
    narration_text: str = Field(description="Voice narration script for this slide")

class VideoScript(BaseModel):
    topic: str
    total_duration: float
    language: str
    slide_scripts: List[SlideScript]

# Example for animation slide:
"As you can see on screen, the triangle has sides a, b, and c. 
Watch as we draw squares on each side. Notice that the area of 
the two smaller squares equals the area of the larger square."

"Looking at this image, we can see Isaac Newton's original diagram. 
This illustration demonstrates the concept of gravitational force."

"The second law of motion states that force equals mass times acceleration. 
This fundamental relationship helps us predict how objects will move."

tone_instructions = {
    "formal": "Use formal, academic language. Be precise and technical.",
    "casual": "Use casual, friendly language. Make it conversational and easy to understand.",
    "storytelling": "Use narrative style, build engagement with stories and examples."
}

# Step 2: Generate narration scripts with timestamps
update_progress(generation_id, 20, "generating_scripts", 
                "📜 Generating voice scripts...")

script_gen = ScriptGenerator()
script_data = script_gen.generate_scripts(content_data, request.language, request.tone)

# From app.py:288-299
# Update script timestamps based on actual audio durations
current_time = 0
for slide_script in script_data['slide_scripts']:
    slide_num = slide_script['slide_number']
    actual_duration = actual_durations.get(slide_num, 
                                          slide_script['end_time'] - slide_script['start_time'])
    
    slide_script['start_time'] = current_time
    slide_script['end_time'] = current_time + actual_duration
    current_time += actual_duration

script_data['total_duration'] = current_time

slides_info = "\n".join([
    f"Slide {slide['slide_number']}: {slide['title']}\n"
    f"  Content: {slide['content_text']}\n"
    f"  Duration: {slide['duration']}s\n"
    f"  Has Animation: {slide['needs_animation']}\n"
    f"  Animation Description: {slide.get('animation_description', 'N/A')}\n"
    f"  Has Image: {slide['needs_image']}\n"
    for slide in content_data['slides']
])

Config.SCRIPTS_DIR / "{topic_sanitized}_script.json"

response = self.model.generate_content(prompt)
text = response.text.strip()

# Remove markdown code blocks
if text.startswith('```json'):
    text = text[7:]
if text.startswith('```'):
    text = text[3:]
if text.endswith('```'):
    text = text[:-3]
text = text.strip()

script_data = json.loads(text)