from flask import Flask, request, jsonify, send_file
from moviepy.editor import ColorClip,ImageClip, concatenate_videoclips,VideoFileClip
import traceback
import uuid
import glob
import os
import asyncio
from image_fetcher import main
from video import create_text_image
from video2 import video_func

app = Flask(__name__)

@app.route("/")
def home():
    return "Flask Video Generator is Running"

@app.route("/generate", methods=["POST"])
def generate_video():
    try:
        data = request.get_json()
        prompt = data.get("duration", '').strip()
        prompts=prompt.replace("**","")
        print(prompts)
        if prompts == '':
            return jsonify({"error": "prompts be must"}), 400
        image_folder = "/tmp/images"
        #line=prompts.splitlines()
        #asyncio.run(main(line))
        raw_lines = prompts.splitlines(keepends=False)
        lines = []
        
        i = 0
        while i < len(raw_lines):
            line = raw_lines[i].strip()
        
            # Check if current line is a heading
            if line.strip().startswith("#") and (line.endswith('?') or line.endswith(':')):
                block = line  # Start block with heading
                i += 1
        
                # Accumulate body lines until next heading or 5+ lines
                paragraph_lines = []
                while i < len(raw_lines):
                    next_line = raw_lines[i].strip()
        
                    # Stop if next line is a heading
                    if next_line.strip().startswith("#") and (next_line.endswith('?') or next_line.endswith(':')):
                        break
        
                    paragraph_lines.append(next_line)
                    i += 1
        
                    # If we've gathered enough lines for a slide, break to next
                    if len(paragraph_lines) >= 5:
                        break
        
                # Combine heading + paragraph
                if paragraph_lines:
                    block += '\n' + '\n'.join(paragraph_lines)
        
                lines.append(block)
        
            else:
                # Group normal lines (not part of any heading)
                block_lines = []
                count = 0
        
                while i < len(raw_lines) and count < 5:
                    next_line = raw_lines[i].strip()
        
                    # If this is a heading, break to handle it separately
                    if next_line.strip().startswith("#") and (next_line.endswith('?') or next_line.endswith(':')):
                        break
        
                    block_lines.append(next_line)
                    i += 1
                    count += 1
        
                if block_lines:
                    lines.append('\n'.join(block_lines))
        
        # Print or use lines as slides
        
        image_olst=[]
        for id in range(len(lines)):
          create_text_image(lines[id],id,image_olst)
        image_files = sorted(glob.glob(os.path.join(image_folder, "*.png")))
        if not image_files:
            raise ValueError("No images found in folder!")
    
        video_path = f"/tmp/video_{uuid.uuid4().hex}.mp4"
        for id in range(len(lines)):
          video_func(id,lines)
          print(id,lines[id])
        clips = []
        for id in range(len(lines)):
            clip = VideoFileClip(f"/app/data/video/clip{id}.mp4")
            clips.append(clip)
        
        final_video = concatenate_videoclips(clips,method="compose")
        final_video.write_videofile(video_path, fps=24)
        for img in image_files:
            os.remove(img)

        return send_file(video_path, mimetype='video/mp4')

    except Exception as e:
        traceback.print_exc()
        return jsonify({"error": str(e)}), 500

if __name__ == "__main__":
    app.run(host="0.0.0.0", port=7860)

    # Example call (remove or change in your actual app)