Video-Player-Controller/app.py

from flask import Flask, render_template_string, request, redirect, url_for, flash
import os

from controller_core import enqueue_download

app = Flask(__name__)
app.secret_key = os.environ.get("FLASK_SECRET_KEY", "dev-secret")

HTML_FORM = """
<!doctype html>
<html>
  <head>
    <meta charset="utf-8">
    <title>YouTube Playlist Submit</title>

    <!-- Make it behave on mobile -->
    <meta name="viewport" content="width=device-width, initial-scale=1, maximum-scale=1">

    <style>
      :root {
        color-scheme: dark;
      }

      body {
        font-family: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
        margin: 0;
        padding: 0;
        background: #020617;
        color: #e5e7eb;
      }

      .page-wrapper {
        min-height: 100vh;
        display: flex;
        align-items: center;
        justify-content: center;
        padding: 1.25rem;
      }

      .card {
        width: 100%;
        max-width: 520px;
        background: rgba(15, 23, 42, 0.98);
        padding: 1.75rem 1.5rem 1.4rem;
        border-radius: 1rem;
        box-shadow: 0 18px 45px rgba(0, 0, 0, 0.7);
        border: 1px solid rgba(148, 163, 184, 0.35);
      }

      h2 {
        margin: 0 0 0.4rem;
        font-size: 1.35rem;
      }

      .subtitle {
        margin: 0 0 1.1rem;
        font-size: 0.95rem;
        color: #9ca3af;
      }

      .flash {
        margin-bottom: 0.75rem;
        padding: 0.55rem 0.75rem;
        border-radius: 0.6rem;
        background: rgba(30, 64, 175, 0.35);
        border: 1px solid rgba(129, 140, 248, 0.7);
        font-size: 0.9rem;
      }

      .form-group {
        margin-bottom: 0.85rem;
      }

      label {
        display: block;
        margin-bottom: 0.3rem;
        font-size: 0.92rem;
      }

      input,
      textarea {
        width: 100%;
        box-sizing: border-box;
        padding: 0.7rem 0.85rem;
        border-radius: 0.65rem;
        border: 1px solid #4b5563;
        background: #020617;
        color: #e5e7eb;
        font-size: 1rem;
      }

      input::placeholder,
      textarea::placeholder {
        color: #6b7280;
      }

      input:focus,
      textarea:focus {
        outline: 2px solid #38bdf8;
        outline-offset: 2px;
        border-color: #38bdf8;
      }

      textarea {
        min-height: 3.2rem;
        resize: vertical;
      }

      button {
        width: 100%;
        padding: 0.8rem 1.5rem;
        border-radius: 999px;
        border: none;
        background: linear-gradient(135deg, #38bdf8, #6366f1);
        color: #fff;
        font-weight: 600;
        font-size: 1rem;
        cursor: pointer;
        display: inline-flex;
        align-items: center;
        justify-content: center;
        margin-top: 0.2rem;
      }

      button:active {
        transform: scale(0.98);
      }

      .helper {
        margin-top: 0.9rem;
        font-size: 0.8rem;
        color: #9ca3af;
      }

      @media (max-width: 480px) {
        .page-wrapper {
          padding: 1rem;
        }

        .card {
          padding: 1.4rem 1.1rem 1.2rem;
          border-radius: 0.9rem;
        }

        h2 {
          font-size: 1.2rem;
        }

        input,
        textarea {
          font-size: 1.02rem;
        }

        button {
          font-size: 1.02rem;
        }
      }
    </style>
  </head>
  <body>
    <div class="page-wrapper">
      <div class="card">
        <h2>Submit YouTube Playlist</h2>
        <p class="subtitle">
          Paste a playlist link below. It’ll be queued for download and assigned to the next free slot.
        </p>

        {% with messages = get_flashed_messages() %}
          {% if messages %}
            {% for m in messages %}
              <div class="flash">{{ m }}</div>
            {% endfor %}
          {% endif %}
        {% endwith %}

        <form method="post" action="{{ url_for('submit') }}">
          <div class="form-group">
            <label for="url">YouTube URL</label>
            <input
              type="url"
              id="url"
              name="url"
              required
              placeholder="https://www.youtube.com/playlist?list=..."
            >
          </div>

          <div class="form-group">
            <label for="submitter">Your name (optional)</label>
            <input
              type="text"
              id="submitter"
              name="submitter"
              placeholder="Simon Peter"
            >
          </div>

          <div class="form-group">
            <label for="note">Note (optional)</label>
            <textarea
              id="note"
              name="note"
              rows="3"
              placeholder="Service, event, etc."
            ></textarea>
          </div>

          <button type="submit">Submit Playlist</button>
        </form>

        <p class="helper">
          Playlists are kept for roughly 48 hours after they’re downloaded.
        </p>
      </div>
    </div>
  </body>
</html>
"""

@app.route("/", methods=["GET"])
def index():
    return render_template_string(HTML_FORM)


@app.route("/submit", methods=["POST"])
def submit():
    url = request.form.get("url", "").strip()
    submitter = request.form.get("submitter", "").strip() or None
    note = request.form.get("note", "").strip() or None

    if not url.startswith("http"):
        flash("Invalid URL.")
        return redirect(url_for("index"))

    result = enqueue_download(url, submitter, note)

    if result.get("status") == "queue_full":
        secs = result.get("oldest_expires_in_seconds", 0)
        hours = max(1, secs // 3600)
        flash(f"Queue is full. Oldest playlist expires in about {hours} hour(s).")
    else:
        slot = result.get("slot")
        msg = f"Playlist queued in slot {slot}."
        if result.get("reused_slot"):
            msg += " (Existing slot – only new videos will be added.)"
        else:
            msg += " It will start downloading shortly."
        flash(msg)

    return redirect(url_for("index"))

if __name__ == "__main__":
    app.run(host="0.0.0.0", port=int(os.environ.get("PORT", 7531)))