image-converter/app.py at main · ezaco-dev/image-converter · GitHub

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from flask import Flask, request, send_file, render_template_string, redirect, url_for
from PIL import Image
import os
from io import BytesIO
from datetime import datetime

app = Flask(__name__)
UPLOAD_FOLDER = "uploaded_images"
os.makedirs(UPLOAD_FOLDER, exist_ok=True)

TEMPLATE = """
<!DOCTYPE html>
<html lang="en">
<head>
  <meta charset="UTF-8">
  <title>LWS25 - Image Compressor & Converter</title>
  <style>
    body {
      font-family: 'Segoe UI', sans-serif;
      background: #101010;
      color: #e0e0e0;
      padding: 20px;
      max-width: 800px;
      margin: auto;
    }
    h1 {
      text-align: center;
      font-size: 2rem;
      margin-bottom: 1rem;
    }
    form {
      background: #1a1a1a;
      padding: 20px;
      border-radius: 16px;
      box-shadow: 0 0 10px #000;
      margin-bottom: 20px;
    }
    label {
      display: block;
      margin-top: 10px;
    }
    input, select {
      margin-top: 5px;
      padding: 10px;
      width: 100%;
      border-radius: 8px;
      border: none;
      background: #2a2a2a;
      color: white;
    }
    button {
      margin-top: 20px;
      padding: 10px 20px;
      background: #00cc99;
      border: none;
      border-radius: 12px;
      cursor: pointer;
      transition: 0.3s;
    }
    button:hover {
      background: #00b386;
    }
    .image-preview {
      text-align: center;
      margin-top: 20px;
    }
    .info {
      background: #222;
      padding: 15px;
      border-radius: 12px;
      margin-top: 10px;
    }
    a {
      color: #00ccff;
      text-decoration: none;
    }
  </style>
</head>
<body>
  <h1>LWS25 - Image Compressor & Converter</h1>
  <form method="POST" enctype="multipart/form-data">
    <label>Upload Image:</label>
    <input type="file" name="image" accept="image/*" required>

    <label>Select Quality (for compression):</label>
    <select name="quality">
      <option value="100">100% (Original)</option>
      <option value="80">80%</option>
      <option value="60">60%</option>
      <option value="40">40%</option>
    </select>

    <label>Convert to Format:</label>
    <select name="format">
      <option value="original">Keep Original</option>
      <option value="JPEG">JPEG</option>
      <option value="PNG">PNG</option>
      <option value="WEBP">WEBP</option>
    </select>

    <button type="submit">Process Image</button>
  </form>

  {% if filename %}
    <div class="image-preview">
      <h2>Result</h2>
      <img src="{{ url_for('get_image', filename=filename) }}" style="max-width: 100%; border-radius: 12px;"><br><br>
      <a href="{{ url_for('download_image', filename=filename) }}">Download Image</a><br>
      <form method="POST" action="{{ url_for('delete_image', filename=filename) }}">
        <button type="submit" style="background:#cc0000;margin-top:10px;">Delete File</button>
      </form>
      <div class="info">
        <strong>Size:</strong> {{ size }} KB<br>
        <strong>Format:</strong> {{ filetype }}<br>
        <strong>Created:</strong> {{ created }}
      </div>
    </div>
  {% endif %}
</body>
</html>
"""

@app.route("/", methods=["GET", "POST"])
def index():
    if request.method == "POST":
        file = request.files["image"]
        quality = int(request.form["quality"])
        convert_format = request.form["format"]

        if not file:
            return redirect(url_for("index"))

        img = Image.open(file.stream)
        original_format = img.format
        ext = convert_format.lower() if convert_format != "original" else original_format.lower()
        filename = f"{datetime.now().strftime('%Y%m%d%H%M%S')}.{ext}"
        filepath = os.path.join(UPLOAD_FOLDER, filename)

        save_format = convert_format if convert_format != "original" else original_format

        # Convert mode for JPEG
        if save_format == "JPEG" and img.mode in ("RGBA", "P"):
            img = img.convert("RGB")

        img.save(filepath, format=save_format, quality=quality)

        size_kb = round(os.path.getsize(filepath) / 1024, 2)
        created_time = datetime.fromtimestamp(os.path.getctime(filepath)).strftime("%Y-%m-%d %H:%M:%S")

        return render_template_string(TEMPLATE, filename=filename, size=size_kb, filetype=save_format, created=created_time)

    return render_template_string(TEMPLATE, filename=None)

@app.route("/image/<filename>")
def get_image(filename):
    return send_file(os.path.join(UPLOAD_FOLDER, filename))

@app.route("/download/<filename>")
def download_image(filename):
    return send_file(os.path.join(UPLOAD_FOLDER, filename), as_attachment=True)

@app.route("/delete/<filename>", methods=["POST"])
def delete_image(filename):
    filepath = os.path.join(UPLOAD_FOLDER, filename)
    if os.path.exists(filepath):
        os.remove(filepath)
    return redirect(url_for("index"))

if __name__ == "__main__":
    app.run(debug=False)