app.py

from kokoro import KPipeline
import soundfile as sf
import torch
import os
from moviepy.editor import VideoFileClip, AudioFileClip, ImageClip, concatenate_videoclips, CompositeVideoClip, TextClip
import moviepy.video.fx.all as vfx
import moviepy.config as mpy_config
from PIL import Image
import tempfile
import random
import cv2
import math
import requests
import re
import time
from pydub import AudioSegment
import numpy as np
from bs4 import BeautifulSoup
from urllib.parse import quote
import gradio as gr
import shutil

# Initialize Kokoro TTS pipeline (American English)
pipeline = KPipeline(lang_code='a')
mpy_config.change_settings({"IMAGEMAGICK_BINARY": "/usr/bin/convert"})

# Global Configuration
PEXELS_API_KEY = 'BhJqbcdm9Vi90KqzXKAhnEHGsuFNv4irXuOjWtT761U49lRzo03qBGna'
OPENROUTER_API_KEY = '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'
OPENROUTER_MODEL = "mistralai/mistral-small-3.1-24b-instruct:free"
OUTPUT_VIDEO_FILENAME = "final_video.mp4"
USER_AGENT = "Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/91.0.4472.124 Safari/537.36"
TARGET_RESOLUTION = None
CAPTION_COLOR = None
TEMP_FOLDER = None

# Helper Functions (unchanged from original, included for completeness)
def generate_script(user_input):
    headers = {
        'Authorization': f'Bearer {OPENROUTER_API_KEY}',
        'HTTP-Referer': 'https://your-domain.com',
        'X-Title': 'AI Documentary Maker'
    }
    prompt = f"""Short Documentary Script GeneratorInstructions:
If I say "use this," just output the script exactly as I gave it.
If I only give topics, generate a script based on them.
If I provide a full script, rewrite it without any changes. Make everything short simple and humarous funny and act as serious but humarous. And don't say anything off topic. Also alway say a funny statement to subscribe based on the video topic at the end. Use normal conversational text like a normal person talking and avoid AI phase make the statements humanize and normal conversational
And always talk negative views don't really wants any positive statement and the full script will be one video about one topic so keep in mind
Formatting Rules:
Title in Square Brackets:
Each section starts with a one-word title inside [ ] (max two words if necessary).
This title will be used as a search term for Pexels footage.
Casual & Funny Narration:
Each section has 5-10 words of narration.
Keep it natural, funny, and unpredictable (not robotic, poetic, or rhythmic).
No Special Formatting:
No bold, italics, or special characters. You are a assistant AI your task is to create script. You aren't a chatbot. So, don't write extra text
Generalized Search Terms:
If a term is too specific, make it more general for Pexels search.
Scene-Specific Writing:
Each section describes only what should be shown in the video.
Output Only the Script, and also make it funny and humarous and helirous and also add to subscribe with a funny statement like subscribe now or .....
No extra text, just the script.
Example Output:
[North Korea]
Top 5 unknown facts about North Korea.
[Invisibility]
North Korea’s internet speed is so fast… it doesn’t exist.
[Leadership]
Kim Jong-un once won an election with 100% votes… against himself.
[Magic]
North Korea discovered time travel. That’s why their news is always from the past.
[Warning]
Subscribe now, or Kim Jong-un will send you a free one-way ticket… to North Korea.
[Freedom]
North Korean citizens can do anything… as long as it's government-approved.
Now here is the Topic/scrip: {user_input}
"""
    data = {
        'model': OPENROUTER_MODEL,
        'messages': [{'role': 'user', 'content': prompt}],
        'temperature': 0.4,
        'max_tokens': 5000
    }
    try:
        response = requests.post('https://openrouter.ai/api/v1/chat/completions', headers=headers, json=data, timeout=30)
        if response.status_code == 200:
            response_data = response.json()
            if 'choices' in response_data and len(response_data['choices']) > 0:
                return response_data['choices'][0]['message']['content']
            else:
                print("Unexpected response format:", response_data)
                return None
        else:
            print(f"API Error {response.status_code}: {response.text}")
            return None
    except Exception as e:
        print(f"Request failed: {str(e)}")
        return None

def parse_script(script_text):
    sections = {}
    current_title = None
    current_text = ""
    try:
        for line in script_text.splitlines():
            line = line.strip()
            if line.startswith("[") and "]" in line:
                bracket_start = line.find("[")
                bracket_end = line.find("]", bracket_start)
                if bracket_start != -1 and bracket_end != -1:
                    if current_title is not None:
                        sections[current_title] = current_text.strip()
                    current_title = line[bracket_start+1:bracket_end]
                    current_text = line[bracket_end+1:].strip()
            elif current_title:
                current_text += line + " "
        if current_title:
            sections[current_title] = current_text.strip()
        elements = []
        for title, narration in sections.items():
            if not title or not narration:
                continue
            media_element = {"type": "media", "prompt": title, "effects": "fade-in"}
            words = narration.split()
            duration = max(3, len(words) * 0.5)
            tts_element = {"type": "tts", "text": narration, "voice": "en", "duration": duration}
            elements.append(media_element)
            elements.append(tts_element)
        return elements
    except Exception as e:
        print(f"Error parsing script: {e}")
        return []

def search_pexels_videos(query, pexels_api_key):
    headers = {'Authorization': pexels_api_key}
    base_url = "https://api.pexels.com/videos/search"
    num_pages = 3
    videos_per_page = 15
    max_retries = 3
    retry_delay = 1
    search_query = query
    all_videos = []
    for page in range(1, num_pages + 1):
        for attempt in range(max_retries):
            try:
                params = {"query": search_query, "per_page": videos_per_page, "page": page}
                response = requests.get(base_url, headers=headers, params=params, timeout=10)
                if response.status_code == 200:
                    data = response.json()
                    videos = data.get("videos", [])
                    if not videos:
                        print(f"No videos found on page {page}.")
                        break
                    for video in videos:
                        video_files = video.get("video_files", [])
                        for file in video_files:
                            if file.get("quality") == "hd":
                                all_videos.append(file.get("link"))
                                break
                    break
                elif response.status_code == 429:
                    print(f"Rate limit hit (attempt {attempt+1}/{max_retries}). Retrying in {retry_delay} seconds...")
                    time.sleep(retry_delay)
                    retry_delay *= 2
                else:
                    print(f"Error fetching videos: {response.status_code} {response.text}")
                    if attempt < max_retries - 1:
                        print(f"Retrying in {retry_delay} seconds...")
                        time.sleep(retry_delay)
                        retry_delay *= 2
            except requests.exceptions.RequestException as e:
                print(f"Request exception: {e}")
                if attempt < max_retries - 1:
                    print(f"Retrying in {retry_delay} seconds...")
                    time.sleep(retry_delay)
                    retry_delay *= 2
    if all_videos:
        random_video = random.choice(all_videos)
        print(f"Selected random video from {len(all_videos)} HD videos")
        return random_video
    else:
        print("No suitable videos found after searching all pages.")
        return None

def search_pexels_images(query, pexels_api_key):
    headers = {'Authorization': pexels_api_key}
    url = "https://api.pexels.com/v1/search"
    params = {"query": query, "per_page": 5, "orientation": "landscape"}
    max_retries = 3
    retry_delay = 1
    for attempt in range(max_retries):
        try:
            response = requests.get(url, headers=headers, params=params, timeout=10)
            if response.status_code == 200:
                data = response.json()
                photos = data.get("photos", [])
                if photos:
                    photo = random.choice(photos[:min(5, len(photos))])
                    img_url = photo.get("src", {}).get("original")
                    return img_url
                else:
                    print(f"No images found for query: {query}")
                    return None
            elif response.status_code == 429:
                print(f"Rate limit hit (attempt {attempt+1}/{max_retries}). Retrying in {retry_delay} seconds...")
                time.sleep(retry_delay)
                retry_delay *= 2
            else:
                print(f"Error fetching images: {response.status_code} {response.text}")
                if attempt < max_retries - 1:
                    print(f"Retrying in {retry_delay} seconds...")
                    time.sleep(retry_delay)
                    retry_delay *= 2
        except requests.exceptions.RequestException as e:
            print(f"Request exception: {e}")
            if attempt < max_retries - 1:
                print(f"Retrying in {retry_delay} seconds...")
                time.sleep(retry_delay)
                retry_delay *= 2
    print(f"No Pexels images found for query: {query} after all attempts")
    return None

def search_google_images(query):
    try:
        search_url = f"https://www.google.com/search?q={quote(query)}&tbm=isch"
        headers = {"User-Agent": USER_AGENT}
        response = requests.get(search_url, headers=headers, timeout=10)
        soup = BeautifulSoup(response.text, "html.parser")
        img_tags = soup.find_all("img")
        image_urls = []
        for img in img_tags:
            src = img.get("src", "")
            if src.startswith("http") and "gstatic" not in src:
                image_urls.append(src)
        if image_urls:
            return random.choice(image_urls[:5]) if len(image_urls) >= 5 else image_urls[0]
        else:
            print(f"No Google Images found for query: {query}")
            return None
    except Exception as e:
        print(f"Error in Google Images search: {e}")
        return None

def download_image(image_url, filename):
    try:
        headers = {"User-Agent": USER_AGENT}
        print(f"Downloading image from: {image_url} to {filename}")
        response = requests.get(image_url, headers=headers, stream=True, timeout=15)
        response.raise_for_status()
        with open(filename, 'wb') as f:
            for chunk in response.iter_content(chunk_size=8192):
                f.write(chunk)
        print(f"Image downloaded successfully to: {filename}")
        try:
            img = Image.open(filename)
            img.verify()
            img = Image.open(filename)
            if img.mode != 'RGB':
                img = img.convert('RGB')
                img.save(filename)
            print(f"Image validated and processed: {filename}")
            return filename
        except Exception as e_validate:
            print(f"Downloaded file is not a valid image: {e_validate}")
            if os.path.exists(filename):
                os.remove(filename)
            return None
    except requests.exceptions.RequestException as e_download:
        print(f"Image download error: {e_download}")
        if os.path.exists(filename):
            os.remove(filename)
        return None
    except Exception as e_general:
        print(f"General error during image processing: {e_general}")
        if os.path.exists(filename):
            os.remove(filename)
        return None

def download_video(video_url, filename):
    try:
        response = requests.get(video_url, stream=True, timeout=30)
        response.raise_for_status()
        with open(filename, 'wb') as f:
            for chunk in response.iter_content(chunk_size=8192):
                f.write(chunk)
        print(f"Video downloaded successfully to: {filename}")
        return filename
    except Exception as e:
        print(f"Video download error: {e}")
        if os.path.exists(filename):
            os.remove(filename)
        return None

def generate_media(prompt, current_index=0, total_segments=1):
    safe_prompt = re.sub(r'[^\w\s-]', '', prompt).strip().replace(' ', '_')
    if "news" in prompt.lower():
        print(f"News-related query detected: {prompt}. Using Google Images...")
        image_file = os.path.join(TEMP_FOLDER, f"{safe_prompt}_news.jpg")
        image_url = search_google_images(prompt)
        if image_url:
            downloaded_image = download_image(image_url, image_file)
            if downloaded_image:
                print(f"News image saved to {downloaded_image}")
                return {"path": downloaded_image, "asset_type": "image"}
        else:
            print(f"Google Images search failed for prompt: {prompt}")
    if random.random() < 0.45:
        video_file = os.path.join(TEMP_FOLDER, f"{safe_prompt}_video.mp4")
        video_url = search_pexels_videos(prompt, PEXELS_API_KEY)
        if video_url:
            downloaded_video = download_video(video_url, video_file)
            if downloaded_video:
                print(f"Video asset saved to {downloaded_video}")
                return {"path": downloaded_video, "asset_type": "video"}
        else:
            print(f"Pexels video search failed for prompt: {prompt}")
    image_file = os.path.join(TEMP_FOLDER, f"{safe_prompt}.jpg")
    image_url = search_pexels_images(prompt, PEXELS_API_KEY)
    if image_url:
        downloaded_image = download_image(image_url, image_file)
        if downloaded_image:
            print(f"Image asset saved to {downloaded_image}")
            return {"path": downloaded_image, "asset_type": "image"}
        else:
            print(f"Pexels image download failed for prompt: {prompt}")
    fallback_terms = ["nature", "people", "landscape", "technology", "business"]
    for term in fallback_terms:
        print(f"Trying fallback image search with term: {term}")
        fallback_file = os.path.join(TEMP_FOLDER, f"fallback_{term}.jpg")
        fallback_url = search_pexels_images(term, PEXELS_API_KEY)
        if fallback_url:
            downloaded_fallback = download_image(fallback_url, fallback_file)
            if downloaded_fallback:
                print(f"Fallback image saved to {downloaded_fallback}")
                return {"path": downloaded_fallback, "asset_type": "image"}
            else:
                print(f"Fallback image download failed for term: {term}")
        else:
            print(f"Fallback image search failed for term: {term}")
    print(f"Failed to generate visual asset for prompt: {prompt}")
    return None

def generate_tts(text, voice):
    safe_text = re.sub(r'[^\w\s-]', '', text[:10]).strip().replace(' ', '_')
    file_path = os.path.join(TEMP_FOLDER, f"tts_{safe_text}.wav")
    if os.path.exists(file_path):
        print(f"Using cached TTS for text '{text[:10]}...'")
        return file_path
    try:
        kokoro_voice = 'af_heart' if voice == 'en' else voice
        generator = pipeline(text, voice=kokoro_voice, speed=0.9, split_pattern=r'\n+')
        audio_segments = []
        for i, (gs, ps, audio) in enumerate(generator):
            audio_segments.append(audio)
        full_audio = np.concatenate(audio_segments) if len(audio_segments) > 1 else audio_segments[0]
        sf.write(file_path, full_audio, 24000)
        print(f"TTS audio saved to {file_path} (Kokoro)")
        return file_path
    except Exception as e:
        print(f"Error with Kokoro TTS: {e}")
        return None

def apply_kenburns_effect(clip, target_resolution, effect_type=None):
    target_w, target_h = target_resolution
    clip_aspect = clip.w / clip.h
    target_aspect = target_w / target_h
    if clip_aspect > target_aspect:
        new_height = target_h
        new_width = int(new_height * clip_aspect)
    else:
        new_width = target_w
        new_height = int(new_width / clip_aspect)
    clip = clip.resize(newsize=(new_width, new_height))
    base_scale = 1.15
    new_width = int(new_width * base_scale)
    new_height = int(new_height * base_scale)
    clip = clip.resize(newsize=(new_width, new_height))
    max_offset_x = new_width - target_w
    max_offset_y = new_height - target_h
    available_effects = ["zoom-in", "zoom-out", "pan-left", "pan-right", "up-left"]
    if effect_type is None or effect_type == "random":
        effect_type = random.choice(available_effects)
    if effect_type == "zoom-in":
        start_zoom = 0.9
        end_zoom = 1.1
        start_center = (new_width / 2, new_height / 2)
        end_center = start_center
    elif effect_type == "zoom-out":
        start_zoom = 1.1
        end_zoom = 0.9
        start_center = (new_width / 2, new_height / 2)
        end_center = start_center
    elif effect_type == "pan-left":
        start_zoom = 1.0
        end_zoom = 1.0
        start_center = (max_offset_x + target_w / 2, (max_offset_y // 2) + target_h / 2)
        end_center = (target_w / 2, (max_offset_y // 2) + target_h / 2)
    elif effect_type == "pan-right":
        start_zoom = 1.0
        end_zoom = 1.0
        start_center = (target_w / 2, (max_offset_y // 2) + target_h / 2)
        end_center = (max_offset_x + target_w / 2, (max_offset_y // 2) + target_h / 2)
    elif effect_type == "up-left":
        start_zoom = 1.0
        end_zoom = 1.0
        start_center = (max_offset_x + target_w / 2, max_offset_y + target_h / 2)
        end_center = (target_w / 2, target_h / 2)
    else:
        raise ValueError(f"Unsupported effect_type: {effect_type}")
    def transform_frame(get_frame, t):
        frame = get_frame(t)
        ratio = t / clip.duration if clip.duration > 0 else 0
        ratio = 0.5 - 0.5 * math.cos(math.pi * ratio)
        current_zoom = start_zoom + (end_zoom - start_zoom) * ratio
        crop_w = int(target_w / current_zoom)
        crop_h = int(target_h / current_zoom)
        current_center_x = start_center[0] + (end_center[0] - start_center[0]) * ratio
        current_center_y = start_center[1] + (end_center[1] - start_center[1]) * ratio
        min_center_x = crop_w / 2
        max_center_x = new_width - crop_w / 2
        min_center_y = crop_h / 2
        max_center_y = new_height - crop_h / 2
        current_center_x = max(min_center_x, min(current_center_x, max_center_x))
        current_center_y = max(min_center_y, min(current_center_y, max_center_y))
        cropped_frame = cv2.getRectSubPix(frame, (crop_w, crop_h), (current_center_x, current_center_y))
        resized_frame = cv2.resize(cropped_frame, (target_w, target_h), interpolation=cv2.INTER_LANCZOS4)
        return resized_frame
    return clip.fl(transform_frame)

def resize_to_fill(clip, target_resolution):
    target_w, target_h = target_resolution
    clip_aspect = clip.w / clip.h
    target_aspect = target_w / target_h
    if clip_aspect > target_aspect:
        clip = clip.resize(height=target_h)
        crop_amount = (clip.w - target_w) / 2
        clip = clip.crop(x1=crop_amount, x2=clip.w - crop_amount, y1=0, y2=clip.h)
    else:
        clip = clip.resize(width=target_w)
        crop_amount = (clip.h - target_h) / 2
        clip = clip.crop(x1=0, x2=clip.w, y1=crop_amount, y2=clip.h - crop_amount)
    return clip

def add_background_music(final_video, music_file, bg_music_volume=0.08):
    if music_file and os.path.exists(music_file):
        print(f"Adding background music from: {music_file}")
        bg_music = AudioFileClip(music_file)
        if bg_music.duration < final_video.duration:
            loops_needed = math.ceil(final_video.duration / bg_music.duration)
            bg_segments = [bg_music] * loops_needed
            bg_music = concatenate_audioclips(bg_segments)
        bg_music = bg_music.subclip(0, final_video.duration)
        bg_music = bg_music.volumex(bg_music_volume)
        video_audio = final_video.audio
        mixed_audio = CompositeAudioClip([video_audio, bg_music])
        final_video = final_video.set_audio(mixed_audio)
        print("Background music added successfully")
    else:
        print("No music file provided, skipping background music")
    return final_video

def create_clip(media_path, asset_type, tts_path, duration=None, effects=None, narration_text=None, segment_index=0):
    try:
        print(f"Creating clip #{segment_index} with asset_type: {asset_type}, media_path: {media_path}")
        if not os.path.exists(media_path) or not os.path.exists(tts_path):
            print("Missing media or TTS file")
            return None
        audio_clip = AudioFileClip(tts_path).audio_fadeout(0.2)
        audio_duration = audio_clip.duration
        target_duration = audio_duration + 0.2
        if asset_type == "video":
            clip = VideoFileClip(media_path)
            clip = resize_to_fill(clip, TARGET_RESOLUTION)
            if clip.duration < target_duration:
                clip = clip.loop(duration=target_duration)
            else:
                clip = clip.subclip(0, target_duration)
        elif asset_type == "image":
            img = Image.open(media_path)
            if img.mode != 'RGB':
                with tempfile.NamedTemporaryFile(suffix='.jpg', delete=False) as temp:
                    img.convert('RGB').save(temp.name)
                    media_path = temp.name
                img.close()
            clip = ImageClip(media_path).set_duration(target_duration)
            clip = apply_kenburns_effect(clip, TARGET_RESOLUTION)
            clip = clip.fadein(0.3).fadeout(0.3)
        else:
            return None
        if narration_text and CAPTION_COLOR != "transparent":
            try:
                words = narration_text.split()
                chunks = []
                current_chunk = []
                for word in words:
                    current_chunk.append(word)
                    if len(current_chunk) >= 5:
                        chunks.append(' '.join(current_chunk))
                        current_chunk = []
                if current_chunk:
                    chunks.append(' '.join(current_chunk))
                chunk_duration = audio_duration / len(chunks)
                subtitle_clips = []
                subtitle_y_position = int(TARGET_RESOLUTION[1] * 0.70)
                for i, chunk_text in enumerate(chunks):
                    start_time = i * chunk_duration
                    end_time = (i + 1) * chunk_duration
                    txt_clip = TextClip(
                        chunk_text,
                        fontsize=45,
                        font='Arial-Bold',
                        color=CAPTION_COLOR,
                        bg_color='rgba(0, 0, 0, 0.25)',
                        method='caption',
                        align='center',
                        stroke_width=2,
                        stroke_color=CAPTION_COLOR,
                        size=(TARGET_RESOLUTION[0] * 0.8, None)
                    ).set_start(start_time).set_end(end_time)
                    txt_clip = txt_clip.set_position(('center', subtitle_y_position))
                    subtitle_clips.append(txt_clip)
                clip = CompositeVideoClip([clip] + subtitle_clips)
            except Exception as sub_error:
                print(f"Subtitle error: {sub_error}")
                txt_clip = TextClip(
                    narration_text,
                    fontsize=28,
                    color=CAPTION_COLOR,
                    align='center',
                    size=(TARGET_RESOLUTION[0] * 0.7, None)
                ).set_position(('center', int(TARGET_RESOLUTION[1] / 3))).set_duration(clip.duration)
                clip = CompositeVideoClip([clip, txt_clip])
        clip = clip.set_audio(audio_clip)
        print(f"Clip created: {clip.duration:.1f}s")
        return clip
    except Exception as e:
        print(f"Error in create_clip: {str(e)}")
        return None

def fix_imagemagick_policy():
    try:
        print("Attempting to fix ImageMagick security policies...")
        policy_paths = [
            "/etc/ImageMagick-6/policy.xml",
            "/etc/ImageMagick-7/policy.xml",
            "/etc/ImageMagick/policy.xml",
            "/usr/local/etc/ImageMagick-7/policy.xml"
        ]
        found_policy = next((path for path in policy_paths if os.path.exists(path)), None)
        if not found_policy:
            print("No policy.xml found. Using alternative subtitle method.")
            return False
        print(f"Modifying policy file at {found_policy}")
        os.system(f"sudo cp {found_policy} {found_policy}.bak")
        os.system(f"sudo sed -i 's/rights=\"none\"/rights=\"read|write\"/g' {found_policy}")
        os.system(f"sudo sed -i 's/<policy domain=\"path\" pattern=\"@\*\"[^>]*>/<policy domain=\"path\" pattern=\"@*\" rights=\"read|write\"/g' {found_policy}")
        os.system(f"sudo sed -i 's/<policy domain=\"coder\" rights=\"none\" pattern=\"PDF\"[^>]*>/<!-- <policy domain=\"coder\" rights=\"none\" pattern=\"PDF\"> -->/g' {found_policy}")
        print("ImageMagick policies updated successfully.")
        return True
    except Exception as e:
        print(f"Error fixing policies: {e}")
        return False

# Main Video Generation Function with Script Input
def generate_video_from_script(script, resolution, caption_option, music_file):
    global TARGET_RESOLUTION, CAPTION_COLOR, TEMP_FOLDER
    if resolution == "Full":
        TARGET_RESOLUTION = (1920, 1080)
    elif resolution == "Short":
        TARGET_RESOLUTION = (1080, 1920)
    else:
        TARGET_RESOLUTION = (1920, 1080)
    CAPTION_COLOR = "white" if caption_option == "Yes" else "transparent"
    TEMP_FOLDER = tempfile.mkdtemp()
    fix_success = fix_imagemagick_policy()
    if not fix_success:
        print("Will use alternative methods if needed")
    elements = parse_script(script)
    if not elements:
        print("Failed to parse script into elements.")
        shutil.rmtree(TEMP_FOLDER)
        return None
    paired_elements = []
    for i in range(0, len(elements), 2):
        if i + 1 < len(elements):
            paired_elements.append((elements[i], elements[i + 1]))
    if not paired_elements:
        print("No valid script segments found.")
        shutil.rmtree(TEMP_FOLDER)
        return None
    clips = []
    for idx, (media_elem, tts_elem) in enumerate(paired_elements):
        print(f"\nProcessing segment {idx+1}/{len(paired_elements)} with prompt: '{media_elem['prompt']}'")
        media_asset = generate_media(media_elem['prompt'], current_index=idx, total_segments=len(paired_elements))
        if not media_asset:
            print(f"Skipping segment {idx+1} due to missing media asset.")
            continue
        tts_path = generate_tts(tts_elem['text'], tts_elem['voice'])
        if not tts_path:
            print(f"Skipping segment {idx+1} due to TTS generation failure.")
            continue
        clip = create_clip(
            media_path=media_asset['path'],
            asset_type=media_asset['asset_type'],
            tts_path=tts_path,
            duration=tts_elem['duration'],
            effects=media_elem.get('effects', 'fade-in'),
            narration_text=tts_elem['text'],
            segment_index=idx
        )
        if clip:
            clips.append(clip)
        else:
            print(f"Clip creation failed for segment {idx+1}.")
    if not clips:
        print("No clips were successfully created.")
        shutil.rmtree(TEMP_FOLDER)
        return None
    print("\nConcatenating clips...")
    final_video = concatenate_videoclips(clips, method="compose")
    final_video = add_background_music(final_video, music_file, bg_music_volume=0.08)
    print(f"Exporting final video to {OUTPUT_VIDEO_FILENAME}...")
    final_video.write_videofile(OUTPUT_VIDEO_FILENAME, codec='libx264', fps=60, preset='veryfast')
    print(f"Final video saved as {OUTPUT_VIDEO_FILENAME}")
    shutil.rmtree(TEMP_FOLDER)
    print("Temporary files removed.")
    return OUTPUT_VIDEO_FILENAME

# Gradio Blocks Interface
with gr.Blocks(title="AI Documentary Video Generator") as demo:
    gr.Markdown("### Create a Funny Documentary Video")
    gr.Markdown("Enter a concept, generate a script, edit it, upload music, and generate your video!")
    gr.Markdown("**Note**: Generation may take several minutes on CPU.")
    
    concept = gr.Textbox(label="Video Concept", placeholder="Enter your video concept here...")
    resolution = gr.Radio(["Full", "Short"], label="Resolution", value="Short")
    captions = gr.Radio(["Yes", "No"], label="Captions", value="No")
    script = gr.Textbox(label="Script", lines=10, placeholder="Generated script will appear here...")
    music = gr.Audio(label="Background Music (Optional)", type="filepath")
    
    generate_script_btn = gr.Button("Generate Script")
    generate_video_btn = gr.Button("Generate Video")
    
    video_output = gr.Video(label="Generated Video")
    
    def on_generate_script(concept):
        script_text = generate_script(concept)
        return script_text if script_text else "Failed to generate script."
    
    def on_generate_video(script, resolution, captions, music):
        if not script or "Failed" in script:
            return None
        video_path = generate_video_from_script(script, resolution, captions, music)
        return video_path
    
    generate_script_btn.click(on_generate_script, inputs=concept, outputs=script)
    generate_video_btn.click(on_generate_video, inputs=[script, resolution, captions, music], outputs=video_output)

demo.launch(share=True)