"""
Video Processing Module

Provides two strategies for analyzing video content:
1. Direct Analysis: Send video directly to Gemini 1.5 Pro
2. Audio-First: Extract audio → Whisper transcription → Text analysis

Usage:
    from backend.video_processor import analyze_video
    
    result = analyze_video(
        video_path="input.mp4",
        strategy="audio",  # or "direct"
        config={"language": "ja"}
    )
"""

from .schemas import VideoAnalysisResult, VideoSegment, KeyMoment
from .utils import extract_audio, get_video_duration

__all__ = [
    "analyze_video",
    "VideoAnalysisResult",
    "VideoSegment", 
    "KeyMoment",
    "extract_audio",
    "get_video_duration",
]


def analyze_video(
    video_path: str,
    strategy: str = "audio",
    config: dict | None = None
) -> VideoAnalysisResult:
    """
    Main entry point for video analysis.
    
    Args:
        video_path: Path to video file
        strategy: "audio" or "direct"
        config: Optional configuration dict
        
    Returns:
        VideoAnalysisResult object with segments and key moments
    """
    if config is None:
        config = {}
    
    if strategy == "audio":
        # Lazy import to avoid dependency issues when just checking deps
        from .strategy_audio import AudioFirstStrategy
        processor = AudioFirstStrategy(config)
        return processor.analyze(video_path)
    elif strategy == "direct":
        # TODO: Implement in next sprint
        raise NotImplementedError("Direct video analysis coming in next sprint")
    else:
        raise ValueError(f"Unknown strategy: {strategy}")