from flask import Flask, render_template, request, jsonify
from processor import DatasetCommandCenter
import requests
import threading
import uuid
import json

app = Flask(__name__)
jobs = {}

@app.route('/')
def index():
    return render_template('index.html')

@app.route('/analyze_metadata', methods=['POST'])
def analyze_metadata():
    data = request.json
    center = DatasetCommandCenter(token=data.get('token'))
    return jsonify(center.get_dataset_metadata(data.get('dataset_id')))

@app.route('/get_splits', methods=['POST'])
def get_splits():
    data = request.json
    center = DatasetCommandCenter(token=data.get('token'))
    return jsonify(center.get_splits_for_config(data.get('dataset_id'), data.get('config')))

@app.route('/inspect_rows', methods=['POST'])
def inspect_rows():
    data = request.json
    center = DatasetCommandCenter(token=data.get('token'))
    return jsonify(center.inspect_dataset(
        data.get('dataset_id'), data.get('config'), data.get('split')
    ))

@app.route('/preview', methods=['POST'])
def preview():
    data = request.json
    recipe = data.get('recipe', {})
    
    # DEBUG LOGGING
    print("="*60)
    print("PREVIEW REQUEST RECEIVED")
    print("="*60)
    print("Dataset:", data.get('dataset_id'))
    print("Config:", data.get('config'))
    print("Split:", data.get('split'))
    print("Recipe:")
    print(json.dumps(recipe, indent=2))
    print("="*60)
    
    center = DatasetCommandCenter(token=data.get('token'))
    
    try:
        rows = center.preview_transform(
            data.get('dataset_id'), 
            data.get('config'), 
            data.get('split'),
            recipe
        )
        
        print(f"Preview successful: {len(rows)} rows returned")
        return jsonify({"status": "success", "rows": rows})
        
    except Exception as e:
        print(f"PREVIEW ERROR: {str(e)}")
        import traceback
        traceback.print_exc()
        return jsonify({"status": "error", "message": str(e)})

@app.route('/execute', methods=['POST'])
def execute():
    data = request.json
    job_id = str(uuid.uuid4())
    token = data.get('token')
    center = DatasetCommandCenter(token=token)
    
    args = (
        data.get('dataset_id'),
        data.get('config'),
        data.get('split'),
        data.get('target_id'),
        data.get('recipe', {}),
        data.get('max_rows'),
        data.get('license')
    )
    
    def task():
        try:
            jobs[job_id] = {"status": "running"}
            res = center.process_and_push(*args)
            jobs[job_id] = {"status": "completed", "result": res}
        except Exception as e:
            jobs[job_id] = {"status": "failed", "error": str(e)}
    
    threading.Thread(target=task).start()
    return jsonify({"status": "started", "job_id": job_id})

@app.route('/status/<job_id>', methods=['GET'])
def status(job_id):
    return jsonify(jobs.get(job_id, {"status": "unknown"}))

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