from flask import (
    abort,
    redirect, 
    render_template, 
    send_from_directory,
    url_for
)
from flask_breadcrumbs import register_breadcrumb
from flask_login import current_user, login_required
import os
from app import db
from app.models import Corpus, User
from . import bp
from .utils import user_dynamic_list_constructor as user_dlc


@bp.route('')
@register_breadcrumb(bp, '.', '<i class="material-icons left">group</i>Users')
@login_required
def users():
    return redirect(url_for('main.social_area', _anchor='users'))


@bp.route('/<hashid:user_id>')
@register_breadcrumb(bp, '.entity', '', dynamic_list_constructor=user_dlc)
@login_required
def user(user_id):
    user = User.query.get_or_404(user_id)
    last_seen = user.last_seen.strftime('%Y-%m-%d %H:%M')
    member_since = user.member_since.strftime('%Y-%m-%d')
    followed_corpora = [
        c.to_json_serializeable() for c in user.followed_corpora
    ]
    own_public_corpora = [
        c.to_json_serializeable() for c
        in Corpus.query.filter_by(is_public = True, user = user).all()
    ]
    if not user.is_public and user != current_user:
        abort(403)
    return render_template(
        'users/profile.html.j2',
        followed_corpora=followed_corpora,
        last_seen=last_seen,
        member_since=member_since,
        own_public_corpora=own_public_corpora,
        user=user.to_json_serializeable(),
        user_id=user_id,
        title=user.username
    )


@bp.route('/<hashid:user_id>/avatar')
@login_required
def profile_avatar(user_id):
    user = User.query.get_or_404(user_id)
    if not (user.is_public or user == current_user or current_user.is_administrator()):
        abort(403)
    if user.avatar is None:
        return redirect(url_for('static', filename='images/user_avatar.png'))
    return send_from_directory(
        os.path.dirname(user.avatar.path),
        os.path.basename(user.avatar.path),
        as_attachment=True,
        attachment_filename=user.avatar.filename,
        mimetype=user.avatar.mimetype
    )