"""The signed-in user's own profile."""

from flask import flash, redirect, render_template, request, url_for
from flask_babel import gettext as _
from flask_login import current_user, login_required
from marshmallow import ValidationError

from app.extensions import db, hash_password
from app.logging_config import log_auth_event
from app.models import (
    CoachAvailability,
    Coach,
    Contract,
    ESPORT_GAMES,
    GAME_PLATFORMS,
    Player,
    User,
)
from app.routes.users._shared import (
    flash_validation_errors,
    form_payload,
    update_user_gamertags,
)
from app.routes.users.blueprint import users_bp
from app.validators import EditProfileSchema


@users_bp.route('/profile')
@login_required
def profile():
    """View the current user's profile."""
    contracts = None
    if isinstance(current_user, Player):
        contracts = (
            Contract.query.filter_by(
                player_id=current_user.id,
            )
            .order_by(Contract.uploaded_at.desc())
            .all()
        )

    existing_availability = None
    if isinstance(current_user, Coach):
        existing_availability = CoachAvailability.query.filter_by(
            coach_id=current_user.id,
        ).all()

    return render_template(
        'pages/profile.html',
        user=current_user,
        contracts=contracts,
        existing_availability=existing_availability,
    )


@users_bp.route('/profile/edit', methods=['GET', 'POST'])
@login_required
def edit_profile():
    """Edit the current user's profile."""
    if request.method == 'POST':
        try:
            validated = EditProfileSchema().load(form_payload())
        except ValidationError as err:
            flash_validation_errors(err)
            return render_template(
                'pages/edit_profile.html',
                user=current_user,
                esport_games=ESPORT_GAMES,
                game_platforms=GAME_PLATFORMS,
                user_gamertags=current_user.get_gamertags(),
            )

        username = validated['username']
        full_name = validated['full_name']
        email = validated['email']
        phone = validated.get('phone')
        selected_games = validated.get('games', [])
        discord_username = validated.get('discord_username')
        discord_user_id = validated.get('discord_user_id')
        league_os_profile = validated.get('league_os_profile')

        if username != current_user.username and User.query.filter_by(username=username).first():
            flash(_('Username already taken.'), 'danger')
            return render_template(
                'pages/edit_profile.html',
                user=current_user,
                esport_games=ESPORT_GAMES,
                game_platforms=GAME_PLATFORMS,
                user_gamertags=current_user.get_gamertags(),
            )

        if email != current_user.email and User.query.filter_by(email=email).first():
            flash(_('Email already in use.'), 'danger')
            return render_template(
                'pages/edit_profile.html',
                user=current_user,
                esport_games=ESPORT_GAMES,
                game_platforms=GAME_PLATFORMS,
                user_gamertags=current_user.get_gamertags(),
            )

        current_user.username = username
        current_user.full_name = full_name
        current_user.email = email
        current_user.phone = phone
        current_user.games = ','.join(selected_games) if selected_games else None
        current_user.discord_username = discord_username or None
        current_user.discord_user_id = discord_user_id or None
        current_user.league_os_profile = league_os_profile or None

        update_user_gamertags(current_user, selected_games)

        # Blank means "keep the current password"; anything else has already
        # been checked against the policy by the schema.
        password = validated.get('password')
        if password:
            current_user.password_hash = hash_password(password)
            log_auth_event(
                'account.password_changed', username=current_user.username, user_id=current_user.id
            )

        db.session.commit()
        flash(_('Profile updated successfully!'), 'success')
        return redirect(url_for('users.profile'))

    return render_template(
        'pages/edit_profile.html',
        user=current_user,
        esport_games=ESPORT_GAMES,
        game_platforms=GAME_PLATFORMS,
        user_gamertags=current_user.get_gamertags(),
    )