import os
import time
from datetime import datetime, date
from flask import Flask, render_template, redirect
from flask_sqlalchemy import SQLAlchemy
from flask_wtf import FlaskForm
from wtforms import (StringField, DateField, TextAreaField, IntegerField, BooleanField,
                     RadioField)
from wtforms.validators import InputRequired, Length
from wtforms_sqlalchemy.orm import QuerySelectField

basedir = os.path.abspath(os.path.dirname(__file__))

app = Flask(__name__)
app.config['SECRET_KEY'] = 'HwG55rpe83jcaglifXm8NuF4WEeXyJV4'
app.config['SQLALCHEMY_DATABASE_URI'] =\
           'sqlite:///' + os.path.join(basedir, 'database.db')
app.config['SQLALCHEMY_TRACK_MODIFICATIONS'] = False


db = SQLAlchemy(app)

from auth import auth as auth_blueprint
app.register_blueprint(auth_blueprint)

class Period(db.Model):
    period = db.Column(db.Integer, primary_key=True)
    periodTime = db.Column(db.Integer)
    weekendSchedule = db.Column(db.Boolean)

    def __repr__(self):
        return f'<Period "{self.period}">'

class Task(db.Model):
    id = db.Column(db.Integer, primary_key=True)
    title = db.Column(db.String(100))
    description = db.Column(db.Text)
    is_completed = db.Column(db.Boolean)
    created_timestamp = db.Column(db.Integer)
    due_timestamp = db.Column(db.Integer)

    def __repr__(self):
        return f'<Task "{self.title}">'

class Event(db.Model):
    id = db.Column(db.Integer, primary_key=True)
    scheduled_date = db.Column(db.String(100))
    period = db.relationship(Period, backref='events')
    tasks = db.relationship(Task, backref='events')
    period_num = db.Column(db.Integer, db.ForeignKey('period.period'))
    task_id = db.Column(db.Integer, db.ForeignKey('task.id'))

    def __repr__(self):
        return f'<Event "{self.id}">'

class TaskForm(FlaskForm):
    title = StringField('Title', validators=[InputRequired(),
                                             Length(min=5, max=100)])
    description = TextAreaField('Description', validators=[InputRequired(),
                                                           Length(max=200)])
class EventForm(FlaskForm):
    eventDate = DateField('Date', validators=[InputRequired()], format='m-%d-%Y')
    period_num = IntegerField(validators=[InputRequired()])
    selectedTask = QuerySelectField(label='Task', get_label='title' )


@app.route('/')
def index():
    return redirect('/events')

@app.route('/events')
def events():
    events = Event.query.all()
    tasks = Task.query.order_by('title')
    periods = Period.query.all()

    form = EventForm(obj=tasks)
    return render_template('events.html', events=events, periods=periods, datetime=datetime, date=date, form=form)

@app.route('/tasks')
def tasks():
    tasks = Task.query.all()
    return render_template('tasks.html', str=str, tasks=tasks, datetime=datetime, date=date)

@app.route('/task/new', methods=('GET', 'POST'))
def newTask():
    form = TaskForm()
    if form.validate_on_submit():
        task = Task(title=form.title.data,
                    description=form.description.data,
                    created_timestamp=int(time.time()))
        db.session.add(task)
        db.session.commit()
        return redirect(f'/task/{task.id}')
    return render_template('newtask.html', form=form)

@app.route('/task/<int:task_id>/')
def task(task_id):
    task = Task.query.get_or_404(task_id)
    return render_template('task.html', str=str, task=task, datetime=datetime, date=date)

@app.route('/task/<int:task_id>/edit', methods=('GET', 'POST'))
def editTask(task_id):
    task = Task.query.get_or_404(task_id)
    form = TaskForm(obj=task)
    if form.validate_on_submit():
        task.title=form.title.data
        task.description=form.description.data
        db.session.commit()
        return redirect(f'/task/{task_id}')
    return render_template('edittask.html', task=task, form=form)
@app.post('/task/<int:task_id>/delete')
def delete_task(task_id):
    task = Task.query.get_or_404(task_id)
    db.session.delete(task)
    db.session.commit()
    return redirect('/tasks')