from app import app
from app import db

from api.model.scheduled_operations import ScheduledOperation

from sqlalchemy import func, desc
from sqlalchemy.ext.hybrid import hybrid_property, hybrid_method
from sqlalchemy.orm import sessionmaker, column_property
from sqlalchemy.sql import func, select

from flask import json, request

@app.route("/api/scheduled_operations/<account_id>")
def get_scheduled_operations(account_id):
    """
    Return entries for an account, year, and month.
    """
    session = db.session

    query = session.query(
      ScheduledOperation
    ).select_from(
      session.query(ScheduledOperation)
      .filter(ScheduledOperation.account_id == account_id)
      .order_by(
        desc(ScheduledOperation.day),
        ScheduledOperation.value,
        ScheduledOperation.label,
      ).subquery()
    )

    return json.dumps([{
         "id": i.id,
         "start_date": i.start_date.strftime("%Y-%m-%d"),
         "stop_date": i.stop_date.strftime("%Y-%m-%d"),
         "day": str(i.day),
         "frequency": str(i.frequency),
         "label": i.label,
         "value": str(i.value),
         "category": i.category,
         "account_id": i.account_id
    } for i in query.all()])

@app.route("/api/scheduled_operations", methods=["PUT"])
def add_scheduled_operation():
    session = db.session

    try:
        scheduledOperation = ScheduledOperation(
          start_date = request.json['start_date'],
          stop_date = request.json['stop_date'],
          day = request.json['day'],
          frequency = request.json['frequency'],
          label = request.json['label'],
          value = request.json['value'],
          category = request.json['category'],
          account_id = request.json['account_id']
        )
    
        session.add(scheduledOperation)
        session.commit()
    
        return json.dumps("Scheduled operation added.")
    except:
        session.rollback()
        raise

@app.route("/api/scheduled_operations/<scheduled_operation_id>", methods=["PUT"])
def update_scheduled_operation(scheduled_operation_id):
    session = db.session

    try:
        scheduledOperation = session.query(ScheduledOperation).filter(ScheduledOperation.id == scheduled_operation_id).first()
    
        scheduledOperation.id = scheduled_operation_id
        scheduledOperation.start_date = request.json['start_date'],
        scheduledOperation.stop_date = request.json['stop_date'],
        scheduledOperation.day = request.json['day'],
        scheduledOperation.frequency = request.json['frequency'],
        scheduledOperation.label = request.json['label']
        scheduledOperation.value = request.json['value']
        scheduledOperation.category = request.json['category']
        scheduledOperation.account_id = request.json['account_id']
    
        session.merge(scheduledOperation)
        session.commit()
    
        return json.dumps("Scheduled operation #%s updated." % scheduled_operation_id)
    except:
        session.rollback()
        raise

@app.route("/api/scheduled_operations/<scheduled_operation_id>", methods=["DELETE"])
def delete_scheduled_operation(scheduled_operation_id):
    session = db.session

    try:
        scheduledOperation = session.query(ScheduledOperation).filter(ScheduledOperation.id == scheduled_operation_id).first()
    
        session.delete(scheduledOperation)
        session.commit()
    
        return json.dumps("Scheduled operation #%s deleted." % scheduled_operation_id)
    except:
        session.rollback()
        raise