from __future__ import absolute_import

import logging, random, string, discord
from django.contrib.auth.forms import PasswordChangeForm
from django.contrib.auth import update_session_auth_hash
from django.apps import apps
from django.conf import settings
from django.contrib.auth.models import User
from django.http import JsonResponse, HttpResponse
from django.urls import reverse
from django.utils import timezone
from django.views.generic import View
from django.forms import modelform_factory

import minecraft_manager.forms as MCMForms
from minecraft_manager.models import Player, UserSettings, Application, IP, Ticket, Warning
import minecraft_manager.api.api as mcm_api
import minecraft_manager.utils as mcm_utils
import minecraft_manager.external.stats as mcm_stats

logger = logging.getLogger(__name__)


def request_allowed(request):
    is_authenticated = False
    if hasattr(request, 'user'):
        if hasattr(request.user, 'is_authenticated'):
            is_authenticated = request.user.is_authenticated
    password = getattr(settings, 'API_PASSWORD', None)
    get = request.GET
    post= request.POST
    request_password = None
    if 'api' in get:
        request_password = get['api']
    elif 'api' in post:
        request_password = post['api']
    correct_password = False
    if password and request_password:
        correct_password = request_password == password
    return is_authenticated or correct_password


def clean(model, data):
    cleaned = {}
    for d in data:
        attr = d
        if '__' in d:
            attr = d.split('__')[0]
        if hasattr(model, attr):
            cleaned[d] = data[d]
    return cleaned


def generate_password():
    return "".join([random.choice(string.ascii_letters + string.digits) for idx in range(0, 20)])


class WebAPI(View):

    def get(self, request, keyword):
        get = request.GET
        data = {'success': False, 'message': 'API failed'}
        if request_allowed(request):
            keyword = keyword.lower()
            if keyword == 'log':
                html_global = ""
                html_staff = ""
                chats = mcm_api.get_chats(request.user.usersettings.default_timezone)
                if chats:
                    for g in chats['global']:
                        g['text'] = g['text'].replace("<", "&lt;").replace(">", "&gt;")
                        if request.user.usersettings.show_timestamp_chat:
                            html_global += "<div>[{0}] {1}</div>".format(g['date'], g['text'])
                        else:
                            html_global += "<div data-toggle='tooltip' title='{0}' data-placement='left'>{1}</div>".format(g['date'], g['text'])
                    for s in chats['staff']:
                        s['text'] = s['text'].replace("<", "&lt;").replace(">", "&gt;")
                        if request.user.usersettings.show_timestamp_chat:
                            html_staff += "<div>[{0}] {1}</div>".format(s['date'], s['text'])
                        else:
                            html_staff += "<div data-toggle='tooltip' title='{0}' data-placement='left'>{1}</div>".format(s['date'], s['text'])
                html = {'global': html_global, 'staff': html_staff}
                data = {'chats': chats, 'html': html}
            elif keyword == 'online':
                query = mcm_api.get_query()
                html = ""
                for p in query['players']:
                    html += "<div class='label label-primary'>{0}</div>".format(p)
                    html += "<br/>"
                data = {'query': query, 'html': html}
            elif keyword == "coreprotect":
                if 'username' in get and 'ip' in get:
                    user = User.objects.get(username=get['username'])
                    if user.is_active and user.usersettings.last_ip == get['ip']:
                        data = {'success': True, 'message': self.access_level(user)}
                else:
                    data = {'success': False, 'message': 'Parameters not set'}
        else:
            data = {'message': 'Not Authorized', 'success': False}
        return JsonResponse(data)

    def post(self, request, keyword):
        post = request.POST
        data = {}
        if request_allowed(request):
            keyword = keyword.lower()
            if keyword == 'settings' and request.user.usersettings:
                for s in [a for a in dir(UserSettings) if not a.startswith('__') and not callable(getattr(UserSettings,a))]:
                    if s in post:
                        setattr(request.user.usersettings, s, post[s])
                request.user.usersettings.save()
                data = {'success': True, 'message': 'User Settings saved'}
            elif keyword == 'password':
                form = PasswordChangeForm(request.user, post)
                if form.is_valid():
                    user = form.save()
                    update_session_auth_hash(request, user)
                    return HttpResponse("success")
                else:
                    return HttpResponse(form.as_p())
            elif keyword == 'alert':
                form = MCMForms.AlertForm(request.POST)
                if form.is_valid():
                    if mcm_api.create_alert(form.cleaned_data['message']):
                        data = {'success': True}
                    else:
                        data = {'success': False, 'message': 'Could not create Alerts'}
                else:
                    data = {'success': False, 'message': 'Invalid Message'}
            elif keyword == "discord":
                if 'message' in post:
                    ping = post['ping'] if 'ping' in post else False
                    mcm_api.discord_notification(post['message'], ping=ping)
                    data = {'success': True, 'message': "Success", 'extra': {'message': post['message'], 'ping': ping}}
                else:
                    data = {'success': False, 'message': 'No message supplied'}
            else:
                data = {'success': True, 'message': 'Model set to "{0}"'.format(keyword)}
        else:
            data = {'message': 'Not Authorized', 'success': False}
        return JsonResponse(data)

    def access_level(self, user):
        access = {'cpp': False, 'cpf': False, 'cpa': False}
        if user.has_perm('auth.coreprotect_partial'):
            access['cpp'] = True
        if user.has_perm('auth.coreprotect_full'):
            access['cpf'] = True
        if user.has_perm('auth.coreprotect_activity'):
            access['cpa'] = True
        return access


class PluginAPI(View):

    def get(self, request, keyword):
        json = {'status': True, 'message': '', 'extra': ''}
        if request_allowed(request):
            get = request.GET
            keyword = keyword.lower()

        return JsonResponse(json)

    def post(self, request, keyword):
        json = {'status': True, 'message': '', 'extra': ''}
        if request_allowed(request):
            post = request.POST
            keyword = keyword.lower()
            if "application" == keyword:
                if Application.objects.filter(username=post['username']).exists():
                    application = Application.objects.get(username=post['username'])
                    if application.accepted is not None:
                        json['status'] = False
                        json['message'] = "An application for {0} has already been acted on. Please contact Staff.".format(
                            post['username'])
                        return JsonResponse(json)
                    else:
                        application.accepted = None
                        application.age = post['age']
                        application.player_type = post['player_type']
                        application.ever_banned = False if post['ever_banned'] == "no" else True
                        application.ever_banned_explanation = post['ever_banned_explanation']
                        application.reference = post['reference']
                        application.read_rules = post['read_rules']
                else:
                    application = Application(username=post['username'], age=post['age'],
                                              player_type=post['player_type'],
                                              ever_banned=False if post['ever_banned'] == "no" else True,
                                              ever_banned_explanation= post['ever_banned_explanation'],
                                              reference=post['reference'], read_rules=post['read_rules'])
                application.save()
                if Player.objects.filter(username__iexact=post['username']).exists():
                    player = Player.objects.get(username__iexact=post['username'])
                    player.application_id = application.id
                    player.save()
                json['message'] = "{0}'s application was submitted.".format(application.username)
                json['extra'] = application.id
                msg = mcm_utils.build_application(application)
                mcm_api.discord_mcm(message='New Application!', embeds=msg)
            elif "application_action" == keyword:
                if Application.objects.filter(id=post['application_id']).exists():
                    application = Application.objects.get(id=post['application_id'])
                    if application.accepted is not None:
                        json['status'] = False
                        json['message'] = "Application was already {0}.".format(
                            "accepted" if post['action'] == "True" else "denied")
                    else:
                        application.accepted = True if post['action'] == "True" else False
                        application.save()
                        json['message'] = "Application was successfully {0}.".format(
                            "accepted" if post['action'] == "True" else "denied")
                        mcm_api.discord_mcm("{0}'s application (#{1}) was {2} by {3}".format(application.username,
                                                                                               application.id,
                                                                                               "accepted" if post['action'] == "True" else "denied",
                                                                                                     post['username']))
                        mcm_api.plugin("accept" if post['action'] == "True" else "deny", application.username)
                else:
                    json['status'] = False
                    json['message'] = "No application found."
                    return JsonResponse(json)
            elif "application_clear" == keyword:
                if Application.objects.filter(id=post['application_id']).exists():
                    application = Application.objects.get(id=post['application_id'])
                    if application.accepted is True:
                        json['status'] = False
                        json['message'] = "An accepted application can't be cleared."
                    else:
                        application.accepted = None
                        application.save()
                        json['message'] = "Application was successfully cleared."
                else:
                    json['status'] = False
                    json['message'] = "No application found."
                    return JsonResponse(json)
            elif "login" == keyword:
                player = Player.objects.filter(uuid=post['uuid']).exists()
                new_player = False
                if not player:
                    player = Player(uuid=post['uuid'], username=post['username'])
                    new_player = True
                    player.first_seen = timezone.now().strftime("%Y-%m-%d")
                    test_app = Application.objects.filter(username__iexact=post['username']).exists()
                    if test_app:
                        test_app = Application.objects.get(username__iexact=post['username'])
                        player.application = test_app
                    player.save()
                else:
                    player = Player.objects.get(uuid=post['uuid'])
                    if player.username != post['username']:
                        user = User.objects.filter(username__iexact=player.username).exists()
                        if user:
                            user = User.objects.get(username__iexact=player.username)
                            user.username = post['username'].lower()
                            user.save()
                        mcm_api.create_alert("Name Change: {0} to {1}.".format(player.username, post['username']))
                        player.username = post['username']
                    if not player.application:
                        test_app = Application.objects.filter(username__iexact=post['username']).exists()
                        if test_app:
                            test_app = Application.objects.get(username__iexact=player.username)
                            player.application = test_app
                    player.save()
                test_ip = IP.objects.filter(ip=post['ip'], player=player).exists()
                if not test_ip:
                    ip = IP(ip=post['ip'], player=player)
                    ip.save()
                else:
                    ip = IP.objects.get(ip=post['ip'], player=player)
                player = Player.objects.get(uuid=post['uuid'])
                player.last_seen = timezone.now().strftime("%Y-%m-%d")
                player.save()
                if new_player and ip.associated:
                    for assoc in ip.associated:
                        if assoc.uuid is not player.uuid and assoc.is_banned:
                            mcm_api.plugin("staff", "Server {0}'s IP matches the banned player {1}".format(player.username, assoc.username))
                            mcm_api.discord_notification("{0}'s IP matches the banned player {1}".format(player.username, assoc.username), ping=True)
                json['status'] = True
                json['message'] = "Updated {0}".format(post['username'])
            elif "register" == keyword:
                player = Player.objects.get(uuid=post['uuid'])
                if player.auth_user:
                    json['status'] = False
                    json['message'] = "You are already registered. To change your password, contact an Admin."
                else:
                    password = generate_password()
                    user = User.objects.create_user(username=player.username.lower(), password=password)
                    user.save()
                    player.auth_user = user
                    player.save()
                    json['message'] = password
            elif "ticket" == keyword:
                player = Player.objects.get(uuid=post['uuid'])
                try:
                    ticket = Ticket(player=player, message=post['message'], x=post['x'], y=post['y'], z=post['z'], world=post['world'])
                    ticket.save()
                    json['message'] = "Ticket submitted."
                    link = "{}".format(mcm_utils.url_path(settings.MCM_BASE_LINK, 'dashboard/ticket', ticket.id))
                    msg = mcm_utils.build_ticket(ticket, link)
                    json['extra'] = {'id': ticket.id, 'link': link}
                    mcm_api.discord_mcm(embeds=msg, ping=True)
                except:
                    json['status'] = False
                    json['message'] = "Error while submitting ticket."
            elif "warning" == keyword:
                player = Player.objects.get(uuid=post['player'])
                staff = Player.objects.get(uuid=post['staff'])
                try:
                    warning = Warning(player=player, message=post['message'], severity=post['severity'], staff=staff.auth_user)
                    warning.save()
                    json['message'] = "Warning issued."
                    link = "{}".format(mcm_utils.url_path(settings.MCM_BASE_LINK, 'dashboard/warning', warning.id))
                    msg = mcm_utils.build_warning(warning, link)
                    mcm_api.discord_mcm(embeds=msg)
                except Exception as ex:
                    json['status'] = False
                    json['message'] = "Error while issuing warning."
        return JsonResponse(json)


class FormAPI(View):

    def get(self, request, request_model):
        html = ""
        if request_allowed(request):
            get = request.GET
            model = None
            for m in apps.get_app_config('minecraft_manager').get_models():
                if m._meta.model_name.upper() == request_model.upper():
                    model = m
                    break
            if model:
                form = None
                for modelform in MCMForms.__all__():
                    if modelform.Meta.model == model:
                        form = modelform()
                        break
                if not form:
                    form = modelform_factory(model, exclude=('id',))()
                if 'as' in get:
                    html = getattr(form, 'as_{0}'.format(get['as']))()
                else:
                    html = form.as_p()
        return HttpResponse(html)

    def post(self, request, request_model):
        html = ""
        if request_allowed(request):
            post = request.POST
            model = None
            for m in apps.get_app_config('minecraft_manager').get_models():
                if m._meta.model_name.upper() == request_model.upper():
                    model = m
                    break
            if model:
                form = None
                for modelform in MCMForms.__all__():
                    if modelform.Meta.model == model:
                        form = modelform(post)
                        break
                if not form:
                    form = modelform_factory(model, exclude=('id',))(post)
                if form.is_valid():
                    form.save()
                    html = "Saved"
                else:
                    if 'as' in post:
                        html = getattr(form, 'as_{0}'.format(post['as']))()
                    else:
                        html = form.as_p()
        return HttpResponse(html)


class ModelAPI(View):

    def get(self, request, request_model):
        json = []
        if request_allowed(request):
            get = request.GET
            model = None
            for m in apps.get_app_config('minecraft_manager').get_models():
                if m._meta.model_name.upper() == request_model.upper():
                    model = m
                    break
            if model:
                keywords = clean(model, get)
                objects = model.objects.filter(**keywords).values()
                json = []
                for value in objects:
                    try:
                        link = "{}".format(mcm_utils.url_path(settings.MCM_BASE_LINK, 'dashboard', request_model, value['id']))
                        value['link'] = link
                    except:
                        pass
                    json.append(value)
        return JsonResponse(json, safe=False)

    def post(self, request, request_model):
        pass


class StatsAPI(View):

    def get(self, request):
        json = []
        if request_allowed(request):
            get = request.GET
            if 'stat' in get:
                if 'uuid' in get:
                    json = mcm_stats.one_single(get['uuid'], get['stat'])
                elif 'username' in get and Player.objects.filter(username__iexact=get['username']).exists():
                    uuid = Player.objects.get(username__iexact=get['username']).uuid
                    json = mcm_stats.one_single(uuid, get['stat'])
                else:
                    json = mcm_stats.top_ten_stat(get['stat'])
            elif 'uuid' in get:
                json = mcm_stats.top_ten_player(get['uuid'])
            elif 'username' in get:
                uuid = Player.objects.get(username__iexact=get['username']).uuid
                json = mcm_stats.top_ten_player(uuid)
        return JsonResponse(json, safe=False)

    def post(self, request):
        pass