from flask import Blueprint, render_template, request, jsonify, make_response
from app import db
from app.models import Folder, User
import uuid
import logging

main = Blueprint('main', __name__)

# For prototype, use a fixed user ID
MOCK_USER_ID = 1

@main.route('/')
def index():
    # Ensure the mock user exists
    user = User.query.get(MOCK_USER_ID)
    if not user:
        user = User(id=MOCK_USER_ID, email='prototype@example.com')
        db.session.add(user)
        db.session.commit()
    
    folders = Folder.query.filter_by(user_id=MOCK_USER_ID).all()
    return render_template('index.html', folders=folders)

@main.route('/api/folders/new', methods=['GET'])
def new_folder_modal():
    # Return the add folder modal
    response = make_response(render_template('partials/folder_modal.html'))
    response.headers['HX-Trigger'] = 'open-modal'
    return response

@main.route('/api/folders', methods=['POST'])
def add_folder():
    try:
        # Get form data instead of JSON
        name = request.form.get('name')
        rule_text = request.form.get('rule_text')
        priority = request.form.get('priority')
        
        # Server-side validation
        errors = {}
        if not name or not name.strip():
            errors['name'] = 'Folder name is required'
        elif len(name.strip()) < 3:
            errors['name'] = 'Folder name must be at least 3 characters'
        elif len(name.strip()) > 50:
            errors['name'] = 'Folder name must be less than 50 characters'
            
        if not rule_text or not rule_text.strip():
            errors['rule_text'] = 'Rule text is required'
        elif len(rule_text.strip()) < 10:
            errors['rule_text'] = 'Rule text must be at least 10 characters'
        elif len(rule_text.strip()) > 200:
            errors['rule_text'] = 'Rule text must be less than 200 characters'
            
        # If there are validation errors, return the modal with errors
        if errors:
            response = make_response(render_template('partials/folder_modal.html', errors=errors, name=name, rule_text=rule_text, priority=priority))
            response.headers['HX-Retarget'] = '#folder-modal'
            response.headers['HX-Reswap'] = 'outerHTML'
            return response
            
        # Create new folder
        folder = Folder(
            user_id=MOCK_USER_ID,
            name=name.strip(),
            rule_text=rule_text.strip(),
            priority=int(priority) if priority else 0
        )
        
        db.session.add(folder)
        db.session.commit()
        
        # Get updated list of folders
        folders = Folder.query.filter_by(user_id=MOCK_USER_ID).all()
        
        # Return the updated folders list HTML
        response = make_response(render_template('partials/folders_list.html', folders=folders))
        response.headers['HX-Trigger'] = 'close-modal'
        response.status_code = 201
        return response
        
    except Exception as e:
        # Print unhandled exceptions to the console as required
        logging.exception("Error adding folder: %s", e)
        db.session.rollback()
        # Return error in modal
        errors = {'general': 'An unexpected error occurred. Please try again.'}
        response = make_response(render_template('partials/folder_modal.html', errors=errors, name=name, rule_text=rule_text, priority=priority))
        response.headers['HX-Retarget'] = '#folder-modal'
        response.headers['HX-Reswap'] = 'outerHTML'
        return response

@main.route('/api/folders/<folder_id>', methods=['DELETE'])
def delete_folder(folder_id):
    try:
        # Find the folder by ID
        folder = Folder.query.filter_by(id=folder_id, user_id=MOCK_USER_ID).first()
        
        if not folder:
            # Folder not found
            folders = Folder.query.filter_by(user_id=MOCK_USER_ID).all()
            return render_template('partials/folders_list.html', folders=folders)
            
        # Delete the folder
        db.session.delete(folder)
        db.session.commit()
        
        # Get updated list of folders
        folders = Folder.query.filter_by(user_id=MOCK_USER_ID).all()
        
        # Return the updated folders list HTML
        return render_template('partials/folders_list.html', folders=folders)
        
    except Exception as e:
        # Print unhandled exceptions to the console as required
        logging.exception("Error deleting folder: %s", e)
        db.session.rollback()
        # Return the folders list unchanged
        folders = Folder.query.filter_by(user_id=MOCK_USER_ID).all()
        return render_template('partials/folders_list.html', folders=folders)

@main.route('/api/folders/<folder_id>/edit', methods=['GET'])
def edit_folder_modal(folder_id):
    try:
        # Find the folder by ID
        folder = Folder.query.filter_by(id=folder_id, user_id=MOCK_USER_ID).first()
        
        if not folder:
            return jsonify({'error': 'Folder not found'}), 404
            
        # Return the edit folder modal with folder data
        response = make_response(render_template('partials/folder_modal.html', folder=folder))
        response.headers['HX-Trigger'] = 'open-modal'
        return response
        
    except Exception as e:
        # Print unhandled exceptions to the console as required
        logging.exception("Error getting folder for edit: %s", e)
        return jsonify({'error': 'Error retrieving folder'}), 500

@main.route('/api/folders/<folder_id>', methods=['PUT'])
def update_folder(folder_id):
    try:
        # Find the folder by ID
        folder = Folder.query.filter_by(id=folder_id, user_id=MOCK_USER_ID).first()
        
        if not folder:
            # Folder not found
            folders = Folder.query.filter_by(user_id=MOCK_USER_ID).all()
            return render_template('partials/folders_list.html', folders=folders)
            
        # Get form data
        name = request.form.get('name')
        rule_text = request.form.get('rule_text')
        priority = request.form.get('priority')
        
        # Server-side validation
        errors = {}
        if not name or not name.strip():
            errors['name'] = 'Folder name is required'
        elif len(name.strip()) < 3:
            errors['name'] = 'Folder name must be at least 3 characters'
        elif len(name.strip()) > 50:
            errors['name'] = 'Folder name must be less than 50 characters'
            
        if not rule_text or not rule_text.strip():
            errors['rule_text'] = 'Rule text is required'
        elif len(rule_text.strip()) < 10:
            errors['rule_text'] = 'Rule text must be at least 10 characters'
        elif len(rule_text.strip()) > 200:
            errors['rule_text'] = 'Rule text must be less than 200 characters'
            
        # If there are validation errors, return the modal with errors
        if errors:
            response = make_response(render_template('partials/folder_modal.html', folder=folder, errors=errors, name=name, rule_text=rule_text, priority=priority))
            response.headers['HX-Retarget'] = '#folder-modal'
            response.headers['HX-Reswap'] = 'outerHTML'
            return response
            
        # Update folder
        folder.name = name.strip()
        folder.rule_text = rule_text.strip()
        folder.priority = int(priority) if priority else 0
        
        db.session.commit()
        
        # Get updated list of folders
        folders = Folder.query.filter_by(user_id=MOCK_USER_ID).all()
        
        response = make_response(render_template('partials/folders_list.html', folders=folders))
        response.headers['HX-Trigger'] = 'close-modal'
        return response
        
    except Exception as e:
        # Print unhandled exceptions to the console as required
        logging.exception("Error updating folder: %s", e)
        db.session.rollback()
        # Return error in modal
        errors = {'general': 'An unexpected error occurred. Please try again.'}
        response = make_response(render_template('partials/folder_modal.html', folder=folder, errors=errors, name=name, rule_text=rule_text, priority=priority))
        response.headers['HX-Retarget'] = '#folder-modal'
        response.headers['HX-Reswap'] = 'outerHTML'
        return response