from wtforms import SubmitField, StringField, FloatField, HiddenField, validators, Form
from flask_wtf import FlaskForm
from flask import request, render_template, redirect
from main import db, app, ma
from sqlalchemy import Sequence
from sqlalchemy.exc import SQLAlchemyError
from status import st, Status
from datetime import datetime, timedelta
import pytz

class Importlogline(db.Model):
    id = db.Column(db.Integer, db.Sequence('ill_id_seq'), primary_key=True )
    import_id = db.Column(db.Integer, db.ForeignKey('import.id'), primary_key=True )
    log_date = db.Column(db.DateTime(timezone=True))
    log = db.Column(db.String)

    def __repr__(self):
        return "<id: {}, import_id: {}, log: {}".format(self.id, self.import_id, self.log )

################################################################################
# Class describing Action in the database, and via sqlalchemy, connected to the DB as well
################################################################################
class Importlog(db.Model):
    id = db.Column(db.Integer, db.Sequence('importlog_id_seq'), primary_key=True )
    start_time = db.Column(db.DateTime(timezone=True))
    last_update = db.Column(db.DateTime(timezone=True))
    state = db.Column(db.String)
    num_passes = db.Column(db.Integer)
    current_pass = db.Column(db.Integer)
    num_files = db.Column(db.Integer)
    current_file_num = db.Column(db.Integer)
    current_file = db.Column(db.String)

    def __repr__(self):
        return "<id: {}, start_time: {}, last_update: {}, state: {}, num_passes: {}, current_passes: {}, num_files: {}, current_file_num: {}, current_file: {}>".format(self.id, self.start_time, self.last_update, self.state, self.num_passes, self.current_pass, self.num_files, self.num_files, self.current_file_num, self.current_file)


################################################################################
# /imports -> show current settings
################################################################################
@app.route("/imports", methods=["GET"])
def imports():
    page_title='Import actions'
    imports = Importlog.query.all() 
    return render_template("imports.html", imports=imports, page_title=page_title, alert=st.GetAlert(), message=st.GetMessage() )


###############################################################################
# /import/<id> -> GET -> shows status/history of imports
################################################################################
@app.route("/import/<id>", methods=["GET"])
def importlog(id):
    page_title='Show Import Details'
    importlog = Importlog.query.get(id)
    logs=Importlogline.query.filter(Importlogline.import_id==id).all()
    duration=(datetime.now(pytz.utc)-importlog.start_time)
    duration= duration-timedelta(microseconds=duration.microseconds)
    return render_template("importlog.html", imp=importlog, logs=logs, duration=duration, page_title=page_title, alert=st.GetAlert(), message=st.GetMessage() )

###############################################################################
# This func creates a new filter in jinja2 to format the time from the db in a
# way that is more readable (converted to local tz too)
################################################################################
@app.template_filter('vicdate')
def _jinja2_filter_datetime(date, fmt=None):
    return date.strftime("%d/%m/%Y %I:%M:%S %p")