from flask import request, jsonify
from pony.orm import ObjectNotFound
from datetime import datetime, timedelta
from ITPlanning.db import Appointment, Planning, Service, Ticket, Customer
from ITPlanning.api.exception import NotFound, GenericError
from . import api


def datefiltering(query):
    before, after = map(request.values.get, ("before", "after"))
    if before:
        before = datetime.strptime(before, "%Y-%m-%dT%H%M")
        query = query.filter(lambda a: a.start_datetime < before)
    if after:
        after = datetime.strptime(after, "%Y-%m-%dT%H%M")
        query = query.filter(lambda a: a.start_datetime > after)
    return query


def search_appointment(by=None, id=None):
    rv = []
    if by == None and id is not None:
        rv.append(Appointment[id].to_dict())
    else:
        query = Appointment.select()
        if by is not None:
            query.filter(lambda a: getattr(a, by).id == id)
        query = datefiltering(query)
        for f in query:
            rv.append(f.to_dict())
    if len(rv) == 0:
        raise NotFound("Appointment")
    return jsonify(rv)


@api.route("/appointment")
@api.route("/appointment/")
@api.route("/appointment/<id>")
def get_appointment(id=None):
    return search_appointment(id=id)


@api.route("/appointment/planning/<id>")
def get_appointment_by_planning(id=None):
    return search_appointment("planning", id)


@api.route("/appointment/service/<id>")
def get_appointment_by_service(id):
    return search_appointment("service", id)


@api.route("/appointment/customer/<id>")
def get_appointment_by_customer(id):
    return search_appointment("customer", id)


@api.route("/appointment/ticket/<id>")
def get_appointment_by_ticket(id):
    return search_appointment("ticket", id)


@api.route("/appointment", methods=["POST"])
def new_appointment():
    raise NotImplementedError


@api.route("/appointment", methods=["PUT"])
def update_appointment():
    raise NotImplementedError


@api.route("/appointment", methods=["DELETE"])
def delete_appointment():
    raise NotImplementedError