from flask import abort, redirect, render_template, request, url_for

from app import current_service
from app.main import main
from app.main.forms import BroadcastAreaForm, SearchByNameForm
from app.models.broadcast_message import BroadcastMessage, BroadcastMessages
from app.utils import service_has_permission, user_has_permissions


@main.route('/services/<uuid:service_id>/broadcast-dashboard')
@user_has_permissions()
@service_has_permission('broadcast')
def broadcast_dashboard(service_id):
    broadcast_messages = BroadcastMessages(service_id)
    return render_template(
        'views/broadcast/dashboard.html',
        live_broadcasts=broadcast_messages.with_status('broadcasting'),
        previous_broadcasts=broadcast_messages.with_status('cancelled', 'completed'),
    )


@main.route('/services/<uuid:service_id>/new-broadcast/<uuid:template_id>')
@user_has_permissions('send_messages')
@service_has_permission('broadcast')
def broadcast(service_id, template_id):
    return redirect(url_for(
        '.preview_broadcast_areas',
        service_id=current_service.id,
        broadcast_message_id=BroadcastMessage.create(
            service_id=service_id,
            template_id=template_id,
        ).id,
    ))


@main.route('/services/<uuid:service_id>/broadcast/<uuid:broadcast_message_id>/areas')
@user_has_permissions('send_messages')
@service_has_permission('broadcast')
def preview_broadcast_areas(service_id, broadcast_message_id):
    return render_template(
        'views/broadcast/preview-areas.html',
        broadcast_message=BroadcastMessage.from_id(
            broadcast_message_id,
            service_id=current_service.id,
        ),
    )


@main.route('/services/<uuid:service_id>/broadcast/<uuid:broadcast_message_id>/libraries')
@user_has_permissions('send_messages')
@service_has_permission('broadcast')
def choose_broadcast_library(service_id, broadcast_message_id):
    return render_template(
        'views/broadcast/libraries.html',
        libraries=BroadcastMessage.libraries,
        broadcast_message_id=broadcast_message_id,
    )


@main.route(
    '/services/<uuid:service_id>/broadcast/<uuid:broadcast_message_id>/libraries/<library_slug>',
    methods=['GET', 'POST'],
)
@user_has_permissions('send_messages')
@service_has_permission('broadcast')
def choose_broadcast_area(service_id, broadcast_message_id, library_slug):
    broadcast_message = BroadcastMessage.from_id(
        broadcast_message_id,
        service_id=current_service.id,
    )
    library = BroadcastMessage.libraries.get(library_slug)
    form = BroadcastAreaForm.from_library(library)
    if form.validate_on_submit():
        broadcast_message.add_areas(*form.areas.data)
        return redirect(url_for(
            '.preview_broadcast_areas',
            service_id=current_service.id,
            broadcast_message_id=broadcast_message.id,
        ))
    return render_template(
        'views/broadcast/areas.html',
        form=form,
        search_form=SearchByNameForm(),
        show_search_form=(len(form.areas.choices) > 7),
        page_title=library.name,
        broadcast_message=broadcast_message,
    )


@main.route('/services/<uuid:service_id>/broadcast/<uuid:broadcast_message_id>/remove/<area_slug>')
@user_has_permissions('send_messages')
@service_has_permission('broadcast')
def remove_broadcast_area(service_id, broadcast_message_id, area_slug):
    BroadcastMessage.from_id(
        broadcast_message_id,
        service_id=current_service.id,
    ).remove_area(
        area_slug
    )
    return redirect(url_for(
        '.preview_broadcast_areas',
        service_id=current_service.id,
        broadcast_message_id=broadcast_message_id,
    ))


@main.route(
    '/services/<uuid:service_id>/broadcast/<uuid:broadcast_message_id>/preview',
    methods=['GET', 'POST'],
)
@user_has_permissions('send_messages')
@service_has_permission('broadcast')
def preview_broadcast_message(service_id, broadcast_message_id):
    broadcast_message = BroadcastMessage.from_id(
        broadcast_message_id,
        service_id=current_service.id,
    )
    if request.method == 'POST':
        broadcast_message.start_broadcast()
        return redirect(url_for(
            '.broadcast_dashboard',
            service_id=current_service.id,
        ))
    return render_template(
        'views/broadcast/preview-message.html',
        broadcast_message=broadcast_message,
    )


@main.route('/services/<uuid:service_id>/broadcast/<uuid:broadcast_message_id>')
@user_has_permissions('send_messages')
@service_has_permission('broadcast')
def view_broadcast_message(service_id, broadcast_message_id):
    broadcast_message = BroadcastMessage.from_id(
        broadcast_message_id,
        service_id=current_service.id,
    )
    if broadcast_message.status == 'draft':
        abort(404)
    return render_template(
        'views/broadcast/view-message.html',
        broadcast_message=broadcast_message,
    )


@main.route('/services/<uuid:service_id>/broadcast/<uuid:broadcast_message_id>/cancel')
@user_has_permissions('send_messages')
@service_has_permission('broadcast')
def cancel_broadcast_message(service_id, broadcast_message_id):
    BroadcastMessage.from_id(
        broadcast_message_id,
        service_id=current_service.id,
    ).cancel_broadcast()
    return redirect(url_for(
        '.view_broadcast_message',
        service_id=current_service.id,
        broadcast_message_id=broadcast_message_id,
    ))