AI-video-lifeplan-demo/backend/scripter.py

69 lines
2.2 KiB
Python

"""
Script generation module using Google Gemini Pro
This module generates natural Japanese narration scripts based on:
- Extracted PDF data
- Video transcription
- Template constraints
"""
import os
from typing import Dict, Any, List, Optional
class ScriptGenerator:
"""Generate narration scripts using Gemini Pro"""
def __init__(self, api_key: Optional[str] = None):
self.api_key = api_key or os.getenv("GEMINI_API_KEY")
if not self.api_key:
raise ValueError("GEMINI_API_KEY not found in environment")
def generate(
self,
pdf_data: Dict[str, Any],
video_data: Optional[Dict[str, Any]] = None,
style: str = "friendly"
) -> Dict[str, Any]:
"""
Generate narration script
Args:
pdf_data: Structured data from PDF extraction
video_data: Optional video transcription data
style: Narration style ('friendly', 'professional', 'casual')
Returns:
Dictionary containing:
- segments: List of narration segments
- total_duration: Estimated total duration in seconds
- sync_points: Recommended chart/video sync points
"""
# TODO: Implement script generation
# 1. Build prompt with PDF data and constraints
# 2. Call Gemini Pro API
# 3. Parse and structure the response
# 4. Estimate timing for each segment
raise NotImplementedError("Script generation not yet implemented")
def _build_prompt(self, pdf_data: Dict, style: str) -> str:
"""Build the prompt for Gemini Pro"""
# TODO: Implement prompt engineering
# Should include:
# - PDF data summary
# - Style guidelines (natural Japanese, friendly tone)
# - Output format requirements (JSON with segments)
# - Length constraints (target 3-5 minutes)
return ""
def generate_script(
pdf_data: Dict[str, Any],
video_data: Optional[Dict[str, Any]] = None
) -> Dict[str, Any]:
"""Convenience function for script generation"""
generator = ScriptGenerator()
return generator.generate(pdf_data, video_data)