from flask import Flask, render_template, request, send_from_directory
from paddleocr import PaddleOCR
import os

app = Flask(__name__)

# Upload folder
UPLOAD_FOLDER = 'uploads'
app.config['UPLOAD_FOLDER'] = UPLOAD_FOLDER
if not os.path.exists(UPLOAD_FOLDER):
    os.makedirs(UPLOAD_FOLDER)

# Initialize OCR
ocr = PaddleOCR(use_angle_cls=True, lang='en')

@app.route('/', methods=['GET', 'POST'])
def upload_file():
    text = None
    filename = None
    if request.method == 'POST':
        file = request.files.get('file')
        if not file or file.filename == '':
            return render_template('index.html', error="No file selected")

        filepath = os.path.join(app.config['UPLOAD_FOLDER'], file.filename)
        file.save(filepath)

        # Run OCR
        result = ocr.ocr(filepath, cls=True)
        extracted_text = ""
        for line in result:
            for word_info in line:
                extracted_text += word_info[1][0] + " "

        text = extracted_text
        filename = file.filename

    return render_template('index.html', text=text, filename=filename)

@app.route('/uploads/<filename>')
def uploaded_file(filename):
    return send_from_directory(app.config['UPLOAD_FOLDER'], filename)

if __name__ == '__main__':
    port = int(os.environ.get('PORT', 5000))  # <-- IMPORTANT
    app.run(host='0.0.0.0', port=port)