"""
V8 Autonomous Viral Engine
--------------------------
Fully automated pipeline for viral video generation.
"""

import os
from utils.transcription import transcribe_video
from utils.highlights import detect_highlights
from utils.clipper import create_clips
from utils.srt import generate_srt
from utils.render import render_subtitles
from utils.variations import generate_hooks
from utils.pacing import pacing_engine
from utils.viral_scorer import score_clip


# =====================================================
# CORE AUTONOMOUS PIPELINE
# =====================================================

def run_autonomous_engine(video_path):
    """
    One-call system → full viral pipeline
    """

    print("[V8 ENGINE] Starting autonomous pipeline...")

    # 1. TRANSCRIBE
    words = transcribe_video(video_path)

    # 2. DETECT HIGHLIGHTS
    highlights = detect_highlights(words)

    if not highlights:
        return {
            "status": "failed",
            "reason": "No highlights detected"
        }

    # 3. AUTO CLIP GENERATION
    clips = create_clips(video_path, highlights)

    if not clips:
        return {
            "status": "failed",
            "reason": "Clip generation failed"
        }

    outputs = []

    # 4. PROCESS EACH CLIP AUTONOMOUSLY
    for i, clip in enumerate(clips):

        try:
            clip_words = transcribe_video(clip)

            # 5. CAPTIONS
            srt = generate_srt(clip_words)

            # 6. PACING OPTIMIZATION (NEW V8)
            paced_clip = pacing_engine(clip, clip_words)

            # 7. HOOK VARIATIONS
            hooks = generate_hooks(clip_words)

            # 8. RENDER OUTPUT
            output_path = clip.replace(".mp4", f"_v8_{i}.mp4")

            final_video = render_subtitles(
                paced_clip,
                srt,
                output_path
            )

            # 9. VIRAL SCORING
            score = score_clip(clip_words)

            outputs.append({
                "clip": final_video,
                "score": score,
                "hooks": hooks[:3],
                "index": i
            })

        except Exception as e:
            print(f"[V8 ENGINE] Clip {i} failed:", str(e))
            continue

    # 10. SORT BY VIRAL SCORE
    outputs = sorted(outputs, key=lambda x: x["score"], reverse=True)

    return {
        "status": "completed",
        "best_clip": outputs[0] if outputs else None,
        "all_variants": outputs
    }