from flask import Flask, render_template_string, request, redirect, url_for, flash
from werkzeug.utils import secure_filename
import os
import time
from . import git_ops

app = Flask(__name__)
app.config['UPLOAD_FOLDER'] = os.path.join(os.getcwd(), 'downloads')
app.config['CONTENT_FOLDER'] = os.path.join(os.getcwd(), 'content')
app.secret_key = os.getenv('FLASK_SECRET_KEY', 'dev-key-123')

# Verzeichnisse sicherstellen
os.makedirs(app.config['UPLOAD_FOLDER'], exist_ok=True)
os.makedirs(app.config['CONTENT_FOLDER'], exist_ok=True)

def generate_markdown_content(data, slug):
    return f"""---
Title: {data['title']}
Date: {time.strftime("%Y-%m-%d %H:%M")}
Slug: {slug}
Description: {data['description']}
Abstract: {data['abstract']}
PDF_Download: /downloads/{slug}.pdf
Audio_Download: /downloads/{slug}.mp3
---

{data['article_body']}
"""

@app.route('/', methods=['GET'])
def index():
    form_html = """
    <h1>Blog Admin</h1>
    <form method="POST" action="/preview" enctype="multipart/form-data">
        <input type="text" name="title" placeholder="Titel" required><br>
        <input type="text" name="description" placeholder="Kurzbeschreibung"><br>
        <textarea name="abstract" placeholder="Abstract"></textarea><br>
        <textarea name="article_body" placeholder="Inhalt (Markdown)" required></textarea><br>
        PDF: <input type="file" name="pdf_file"><br>
        MP3: <input type="file" name="audio_file"><br>
        <button type="submit">Vorschau</button>
    </form>
    """
    return render_template_string(form_html)

@app.route('/preview', methods=['POST'])
def preview():
    data = request.form
    slug = secure_filename(data['title']).lower().replace('-', '_')
    
    # Dateien temporär speichern (vereinfacht für dieses Beispiel)
    if 'pdf_file' in request.files:
        request.files['pdf_file'].save(os.path.join(app.config['UPLOAD_FOLDER'], f"{slug}.pdf"))
    if 'audio_file' in request.files:
        request.files['audio_file'].save(os.path.join(app.config['UPLOAD_FOLDER'], f"{slug}.mp3"))

    markdown_content = generate_markdown_content(data, slug)
    return render_template_string("""
        <h2>Vorschau: {{ title }}</h2>
        <pre>{{ content }}</pre>
        <form method="POST" action="/publish">
            <input type="hidden" name="slug" value="{{ slug }}">
            <input type="hidden" name="title" value="{{ title }}">
            <input type="hidden" name="content" value='{{ content }}'>
            <button type="submit">Veröffentlichen</button>
        </form>
    """, title=data['title'], content=markdown_content, slug=slug)

@app.route('/publish', methods=['POST'])
def publish():
    slug = request.form.get('slug')
    content = request.form.get('content')
    title = request.form.get('title')
    
    file_path = os.path.join(app.config['CONTENT_FOLDER'], f"{slug}.md")
    with open(file_path, 'w') as f:
        f.write(content)
        
    # Git Workflow
    success, msg = git_ops.commit_and_push_article(file_path, [], title)
    flash(msg)
    return redirect(url_for('index'))

if __name__ == '__main__':
    app.run(debug=True)