from flask import (
    render_template,
    session,
    flash
)

from flask_login import login_required
from app.main import main
from app.main.dao.services_dao import get_service_by_id
from app.main.dao import templates_dao
from app import job_api_client, statistics_api_client


@main.route("/services/<service_id>/dashboard")
@login_required
def service_dashboard(service_id):
    templates = templates_dao.get_service_templates(service_id)['data']
    jobs = job_api_client.get_job(service_id)['data']

    service = get_service_by_id(service_id)
    session['service_name'] = service['data']['name']
    session['service_id'] = service['data']['id']

    if session.get('invited_user'):
        session.pop('invited_user', None)
        service_name = service['data']['name']
        message = 'You have successfully accepted your invitation and been added to {}'.format(service_name)
        flash(message, 'default_with_tick')

    statistics = statistics_api_client.get_statistics_for_service(service_id)['data']

    return render_template(
        'views/dashboard/dashboard.html',
        jobs=jobs[:5],
        more_jobs_to_show=(len(jobs) > 5),
        free_text_messages_remaining='250,000',
        spent_this_month='0.00',
        service=service['data'],
        statistics=expand_statistics(statistics),
        templates=templates,
        service_id=str(service_id))


def expand_statistics(statistics, danger_zone=25):

    if not statistics or not statistics[0]:
        return {}

    today = statistics[0]

    today.update({
        'emails_failure_rate':
            int(today['emails_error'] / today['emails_requested'] * 100) if today['emails_requested'] else 0,
        'sms_failure_rate':
            int(today['sms_error'] / today['sms_requested'] * 100) if today['sms_requested'] else 0
    })

    today.update({
        'emails_percentage_of_danger_zone': min(today['emails_failure_rate'] / (danger_zone / 100), 100),
        'sms_percentage_of_danger_zone': min(today['sms_failure_rate'] / (danger_zone / 100), 100)
    })

    return today