# vim: set fileencoding=utf-8
import re
from typing import Any, Dict, List, Optional
from flask import Blueprint, request, Response, url_for, abort

from bemani.common import ID, GameConstants
from bemani.data import Link, UserID
from bemani.frontend.app import loginrequired, jsonify, render_react
from bemani.frontend.ddr.ddr import DDRFrontend
from bemani.frontend.templates import templates_location
from bemani.frontend.static import static_location
from bemani.frontend.types import g


ddr_pages = Blueprint(
    'ddr_pages',
    __name__,
    url_prefix=f'/{GameConstants.DDR.value}',
    template_folder=templates_location,
    static_folder=static_location,
)


@ddr_pages.route('/scores')
@loginrequired
def viewnetworkscores() -> Response:
    # Only load the last 100 results for the initial fetch, so we can render faster
    frontend = DDRFrontend(g.data, g.config, g.cache)
    network_scores = frontend.get_network_scores(limit=100)
    if len(network_scores['attempts']) > 10:
        network_scores['attempts'] = frontend.round_to_ten(network_scores['attempts'])

    return render_react(
        'Global DDR Scores',
        'ddr/scores.react.js',
        {
            'attempts': network_scores['attempts'],
            'songs': frontend.get_all_songs(),
            'players': network_scores['players'],
            'versions': {version: name for (game, version, name) in frontend.all_games()},
            'shownames': True,
            'shownewrecords': False,
        },
        {
            'refresh': url_for('ddr_pages.listnetworkscores'),
            'player': url_for('ddr_pages.viewplayer', userid=-1),
            'individual_score': url_for('ddr_pages.viewtopscores', musicid=-1),
        },
    )


@ddr_pages.route('/scores/list')
@jsonify
@loginrequired
def listnetworkscores() -> Dict[str, Any]:
    frontend = DDRFrontend(g.data, g.config, g.cache)
    return frontend.get_network_scores()


@ddr_pages.route('/scores/<int:userid>')
@loginrequired
def viewscores(userid: UserID) -> Response:
    frontend = DDRFrontend(g.data, g.config, g.cache)
    info = frontend.get_latest_player_info([userid]).get(userid)
    if info is None:
        abort(404)

    scores = frontend.get_scores(userid, limit=100)
    if len(scores) > 10:
        scores = frontend.round_to_ten(scores)

    return render_react(
        f'{info["name"]}\'s DDR Scores',
        'ddr/scores.react.js',
        {
            'attempts': scores,
            'songs': frontend.get_all_songs(),
            'players': {},
            'versions': {version: name for (game, version, name) in frontend.all_games()},
            'shownames': False,
            'shownewrecords': True,
        },
        {
            'refresh': url_for('ddr_pages.listscores', userid=userid),
            'player': url_for('ddr_pages.viewplayer', userid=-1),
            'individual_score': url_for('ddr_pages.viewtopscores', musicid=-1),
        },
    )


@ddr_pages.route('/scores/<int:userid>/list')
@jsonify
@loginrequired
def listscores(userid: UserID) -> Dict[str, Any]:
    frontend = DDRFrontend(g.data, g.config, g.cache)
    return {
        'attempts': frontend.get_scores(userid),
        'players': {},
    }


@ddr_pages.route('/records')
@loginrequired
def viewnetworkrecords() -> Response:
    frontend = DDRFrontend(g.data, g.config, g.cache)
    network_records = frontend.get_network_records()

    return render_react(
        'Global DDR Records',
        'ddr/records.react.js',
        {
            'records': network_records['records'],
            'songs': frontend.get_all_songs(),
            'players': network_records['players'],
            'versions': {version: name for (game, version, name) in frontend.all_games()},
            'shownames': True,
            'showpersonalsort': False,
            'filterempty': False,
        },
        {
            'refresh': url_for('ddr_pages.listnetworkrecords'),
            'player': url_for('ddr_pages.viewplayer', userid=-1),
            'individual_score': url_for('ddr_pages.viewtopscores', musicid=-1),
        },
    )


@ddr_pages.route('/records/list')
@jsonify
@loginrequired
def listnetworkrecords() -> Dict[str, Any]:
    frontend = DDRFrontend(g.data, g.config, g.cache)
    return frontend.get_network_records()


@ddr_pages.route('/records/<int:userid>')
@loginrequired
def viewrecords(userid: UserID) -> Response:
    frontend = DDRFrontend(g.data, g.config, g.cache)
    info = frontend.get_latest_player_info([userid]).get(userid)
    if info is None:
        abort(404)

    return render_react(
        f'{info["name"]}\'s DDR Records',
        'ddr/records.react.js',
        {
            'records': frontend.get_records(userid),
            'songs': frontend.get_all_songs(),
            'players': {},
            'versions': {version: name for (game, version, name) in frontend.all_games()},
            'shownames': False,
            'showpersonalsort': True,
            'filterempty': True,
        },
        {
            'refresh': url_for('ddr_pages.listrecords', userid=userid),
            'player': url_for('ddr_pages.viewplayer', userid=-1),
            'individual_score': url_for('ddr_pages.viewtopscores', musicid=-1),
        },
    )


@ddr_pages.route('/records/<int:userid>/list')
@jsonify
@loginrequired
def listrecords(userid: UserID) -> Dict[str, Any]:
    frontend = DDRFrontend(g.data, g.config, g.cache)
    return {
        'records': frontend.get_records(userid),
        'players': {},
    }


@ddr_pages.route('/topscores/<int:musicid>')
@loginrequired
def viewtopscores(musicid: int) -> Response:
    # We just want to find the latest mix that this song exists in
    frontend = DDRFrontend(g.data, g.config, g.cache)
    name = None
    artist = None
    genre = None
    difficulties: List[int] = [0] * 10
    groove: List[Dict[str, int]] = [{}] * 10

    for chart in frontend.valid_charts:
        details = g.data.local.music.get_song(GameConstants.DDR, 0, musicid, chart)
        if details is not None:
            name = details.name
            artist = details.artist
            genre = details.genre
            difficulties[chart] = details.data.get_int('difficulty', 13)
            groove[chart] = details.data.get_dict('groove')

    if name is None:
        # Not a real song!
        abort(404)

    top_scores = frontend.get_top_scores(musicid)

    return render_react(
        f'Top DDR Scores for {artist} - {name}',
        'ddr/topscores.react.js',
        {
            'name': name,
            'artist': artist,
            'genre': genre,
            'difficulties': difficulties,
            'groove': groove,
            'players': top_scores['players'],
            'topscores': top_scores['topscores'],
        },
        {
            'refresh': url_for('ddr_pages.listtopscores', musicid=musicid),
            'player': url_for('ddr_pages.viewplayer', userid=-1),
        },
    )


@ddr_pages.route('/topscores/<int:musicid>/list')
@jsonify
@loginrequired
def listtopscores(musicid: int) -> Dict[str, Any]:
    frontend = DDRFrontend(g.data, g.config, g.cache)
    return frontend.get_top_scores(musicid)


@ddr_pages.route('/players')
@loginrequired
def viewplayers() -> Response:
    frontend = DDRFrontend(g.data, g.config, g.cache)
    return render_react(
        'All DDR Players',
        'ddr/allplayers.react.js',
        {
            'players': frontend.get_all_players()
        },
        {
            'refresh': url_for('ddr_pages.listplayers'),
            'player': url_for('ddr_pages.viewplayer', userid=-1),
        },
    )


@ddr_pages.route('/players/list')
@jsonify
@loginrequired
def listplayers() -> Dict[str, Any]:
    frontend = DDRFrontend(g.data, g.config, g.cache)
    return {
        'players': frontend.get_all_players(),
    }


@ddr_pages.route('/players/<int:userid>')
@loginrequired
def viewplayer(userid: UserID) -> Response:
    frontend = DDRFrontend(g.data, g.config, g.cache)
    info = frontend.get_all_player_info([userid])[userid]
    if not info:
        abort(404)
    latest_version = sorted(info.keys(), reverse=True)[0]

    return render_react(
        f'{info[latest_version]["name"]}\'s DDR Profile',
        'ddr/player.react.js',
        {
            'playerid': userid,
            'own_profile': userid == g.userID,
            'player': info,
            'versions': {version: name for (game, version, name) in frontend.all_games()},
        },
        {
            'refresh': url_for('ddr_pages.listplayer', userid=userid),
            'records': url_for('ddr_pages.viewrecords', userid=userid),
            'scores': url_for('ddr_pages.viewscores', userid=userid),
        },
    )


@ddr_pages.route('/players/<int:userid>/list')
@jsonify
@loginrequired
def listplayer(userid: UserID) -> Dict[str, Any]:
    frontend = DDRFrontend(g.data, g.config, g.cache)
    info = frontend.get_all_player_info([userid])[userid]

    return {
        'player': info,
    }


@ddr_pages.route('/options')
@loginrequired
def viewsettings() -> Response:
    frontend = DDRFrontend(g.data, g.config, g.cache)
    userid = g.userID
    info = frontend.get_all_player_info([userid])[userid]
    if not info:
        abort(404)

    return render_react(
        'DDR Game Settings',
        'ddr/settings.react.js',
        {
            'player': info,
            'versions': {version: name for (game, version, name) in frontend.all_games()},
        },
        {
            'updatename': url_for('ddr_pages.updatename'),
            'updateweight': url_for('ddr_pages.updateweight'),
            'updateearlylate': url_for('ddr_pages.updateearlylate'),
            'updatebackgroundcombo': url_for('ddr_pages.updatebackgroundcombo'),
            'updatesettings': url_for('ddr_pages.updatesettings'),
        },
    )


@ddr_pages.route('/options/name/update', methods=['POST'])
@jsonify
@loginrequired
def updatename() -> Dict[str, Any]:
    frontend = DDRFrontend(g.data, g.config, g.cache)
    version = int(request.get_json()['version'])
    name = request.get_json()['name']
    user = g.data.local.user.get_user(g.userID)
    if user is None:
        raise Exception('Unable to find user to update!')

    # Grab profile and update name
    profile = g.data.local.user.get_profile(GameConstants.DDR, version, user.id)
    if profile is None:
        raise Exception('Unable to find profile to update!')
    if len(name) == 0 or len(name) > 8:
        raise Exception('Invalid profile name!')
    if re.match(r'^[-&$\\.\\?!A-Z0-9 ]*$', name) is None:
        raise Exception('Invalid profile name!')
    profile = frontend.update_name(profile, name)
    g.data.local.user.put_profile(GameConstants.DDR, version, user.id, profile)

    # Return that we updated
    return {
        'version': version,
        'name': name,
    }


@ddr_pages.route('/options/weight/update', methods=['POST'])
@jsonify
@loginrequired
def updateweight() -> Dict[str, Any]:
    frontend = DDRFrontend(g.data, g.config, g.cache)
    version = int(request.get_json()['version'])
    weight = int(float(request.get_json()['weight']) * 10)
    enabled = request.get_json()['enabled']
    user = g.data.local.user.get_user(g.userID)
    if user is None:
        raise Exception('Unable to find user to update!')

    # Grab profile and update weight
    profile = g.data.local.user.get_profile(GameConstants.DDR, version, user.id)
    if profile is None:
        raise Exception('Unable to find profile to update!')
    if enabled:
        if weight <= 0 or weight > 9999:
            raise Exception('Invalid weight!')
    profile = frontend.update_weight(profile, weight, enabled)
    g.data.local.user.put_profile(GameConstants.DDR, version, user.id, profile)

    # Return that we updated
    return {
        'version': version,
        'weight': weight,
        'enabled': enabled,
    }


@ddr_pages.route('/options/earlylate/update', methods=['POST'])
@jsonify
@loginrequired
def updateearlylate() -> Dict[str, Any]:
    frontend = DDRFrontend(g.data, g.config, g.cache)
    version = int(request.get_json()['version'])
    value = request.get_json()['value']
    user = g.data.local.user.get_user(g.userID)
    if user is None:
        raise Exception('Unable to find user to update!')

    # Grab profile and update early/late indicator
    profile = g.data.local.user.get_profile(GameConstants.DDR, version, user.id)
    if profile is None:
        raise Exception('Unable to find profile to update!')
    profile = frontend.update_early_late(profile, value)
    g.data.local.user.put_profile(GameConstants.DDR, version, user.id, profile)

    # Return that we updated
    return {
        'version': version,
        'value': value != 0,
    }


@ddr_pages.route('/options/backgroundcombo/update', methods=['POST'])
@jsonify
@loginrequired
def updatebackgroundcombo() -> Dict[str, Any]:
    frontend = DDRFrontend(g.data, g.config, g.cache)
    version = int(request.get_json()['version'])
    value = request.get_json()['value']
    user = g.data.local.user.get_user(g.userID)
    if user is None:
        raise Exception('Unable to find user to update!')

    # Grab profile and update combo position
    profile = g.data.local.user.get_profile(GameConstants.DDR, version, user.id)
    if profile is None:
        raise Exception('Unable to find profile to update!')
    profile = frontend.update_background_combo(profile, value)
    g.data.local.user.put_profile(GameConstants.DDR, version, user.id, profile)

    # Return that we updated
    return {
        'version': version,
        'value': value != 0,
    }


@ddr_pages.route('/options/settings/update', methods=['POST'])
@jsonify
@loginrequired
def updatesettings() -> Dict[str, Any]:
    frontend = DDRFrontend(g.data, g.config, g.cache)
    settings = request.get_json()['settings']
    version = int(request.get_json()['version'])
    user = g.data.local.user.get_user(g.userID)
    if user is None:
        raise Exception('Unable to find user to update!')

    # Grab profile and settings dict that needs updating
    profile = g.data.local.user.get_profile(GameConstants.DDR, version, user.id)
    if profile is None:
        raise Exception('Unable to find profile to update!')
    profile = frontend.update_settings(profile, settings)
    g.data.local.user.put_profile(GameConstants.DDR, version, user.id, profile)

    # Return updated settings
    info = frontend.get_all_player_info([user.id])[user.id]
    return {
        'player': info,
        'version': version,
    }


@ddr_pages.route('/rivals')
@loginrequired
def viewrivals() -> Response:
    frontend = DDRFrontend(g.data, g.config, g.cache)
    rivals, info = frontend.get_rivals(g.userID)

    return render_react(
        'DDR Rivals',
        'ddr/rivals.react.js',
        {
            'userid': str(g.userID),
            'rivals': rivals,
            'max_active_rivals': frontend.max_active_rivals,
            'players': info,
            'versions': {version: name for (game, version, name) in frontend.all_games()},
        },
        {
            'refresh': url_for('ddr_pages.listrivals'),
            'search': url_for('ddr_pages.searchrivals'),
            'player': url_for('ddr_pages.viewplayer', userid=-1),
            'addrival': url_for('ddr_pages.addrival'),
            'removerival': url_for('ddr_pages.removerival'),
            'setactiverival': url_for('ddr_pages.setactiverival'),
            'setinactiverival': url_for('ddr_pages.setinactiverival'),
        },
    )


@ddr_pages.route('/rivals/list')
@jsonify
@loginrequired
def listrivals() -> Dict[str, Any]:
    frontend = DDRFrontend(g.data, g.config, g.cache)
    rivals, info = frontend.get_rivals(g.userID)

    return {
        'rivals': rivals,
        'players': info,
    }


@ddr_pages.route('/rivals/search', methods=['POST'])
@jsonify
@loginrequired
def searchrivals() -> Dict[str, Any]:
    frontend = DDRFrontend(g.data, g.config, g.cache)
    version = int(request.get_json()['version'])
    name = request.get_json()['term']

    # Try to treat the term as an extid
    extid = ID.parse_extid(name)

    matches = set()
    profiles = g.data.remote.user.get_all_profiles(GameConstants.DDR, version)
    for (userid, profile) in profiles:
        if profile.extid == extid or profile.get_str('name').lower() == name.lower():
            matches.add(userid)

    info = frontend.get_all_player_info(list(matches), allow_remote=True)
    return {
        'results': info,
    }


@ddr_pages.route('/rivals/add', methods=['POST'])
@jsonify
@loginrequired
def addrival() -> Dict[str, Any]:
    frontend = DDRFrontend(g.data, g.config, g.cache)
    version = int(request.get_json()['version'])
    other_userid = UserID(int(request.get_json()['userid']))
    userid = g.userID

    # Find a slot to put the rival into
    occupied: List[Optional[Link]] = [None] * 10
    for link in g.data.local.user.get_links(GameConstants.DDR, version, userid):
        if link.type[:7] != 'friend_':
            continue

        pos = int(link.type[7:])
        if pos >= 0 and pos < 10:
            occupied[pos] = link

    # Put rival in the first slot
    newrivalpos = -1
    for i in range(len(occupied)):
        if occupied[i] is None:
            newrivalpos = i
            break

    if newrivalpos == -1:
        raise Exception('No room for another rival!')

    # Add this rival link
    profile = g.data.remote.user.get_profile(GameConstants.DDR, version, other_userid)
    if profile is None:
        raise Exception('Unable to find profile for rival!')

    g.data.local.user.put_link(
        GameConstants.DDR,
        version,
        userid,
        f'friend_{newrivalpos}',
        other_userid,
        {},
    )

    # Now return updated rival info
    rivals, info = frontend.get_rivals(userid)

    return {
        'rivals': rivals,
        'players': info,
    }


@ddr_pages.route('/rivals/remove', methods=['POST'])
@jsonify
@loginrequired
def removerival() -> Dict[str, Any]:
    frontend = DDRFrontend(g.data, g.config, g.cache)
    version = int(request.get_json()['version'])
    other_userid = UserID(int(request.get_json()['userid']))
    position = int(request.get_json()['position'])
    userid = g.userID

    # Remove this rival link
    g.data.local.user.destroy_link(
        GameConstants.DDR,
        version,
        userid,
        f'friend_{position}',
        other_userid,
    )

    profile = g.data.local.user.get_profile(GameConstants.DDR, version, userid)
    if profile is None:
        raise Exception('Unable to find profile to update!')
    profile = frontend.deactivate_rival(profile, position)
    g.data.local.user.put_profile(GameConstants.DDR, version, userid, profile)

    # Now return updated rival info
    rivals, info = frontend.get_rivals(userid)

    return {
        'rivals': rivals,
        'players': info,
    }


@ddr_pages.route('/rivals/activate', methods=['POST'])
@jsonify
@loginrequired
def setactiverival() -> Dict[str, Any]:
    frontend = DDRFrontend(g.data, g.config, g.cache)
    version = int(request.get_json()['version'])
    position = int(request.get_json()['position'])
    userid = g.userID

    profile = g.data.local.user.get_profile(GameConstants.DDR, version, userid)
    if profile is None:
        raise Exception('Unable to find profile to update!')
    profile = frontend.activate_rival(profile, position)
    g.data.local.user.put_profile(GameConstants.DDR, version, userid, profile)

    # Now return updated rival info
    rivals, info = frontend.get_rivals(userid)

    return {
        'rivals': rivals,
        'players': info,
    }


@ddr_pages.route('/rivals/inactivate', methods=['POST'])
@jsonify
@loginrequired
def setinactiverival() -> Dict[str, Any]:
    frontend = DDRFrontend(g.data, g.config, g.cache)
    version = int(request.get_json()['version'])
    position = int(request.get_json()['position'])
    userid = g.userID

    profile = g.data.local.user.get_profile(GameConstants.DDR, version, userid)
    if profile is None:
        raise Exception('Unable to find profile to update!')
    profile = frontend.deactivate_rival(profile, position)
    g.data.local.user.put_profile(GameConstants.DDR, version, userid, profile)

    # Now return updated rival info
    rivals, info = frontend.get_rivals(userid)

    return {
        'rivals': rivals,
        'players': info,
    }