from django.views.generic import View
from django.http import JsonResponse
from django.conf import settings
import traceback
import sys

from GeoffreyApp.api.commands import RequestTypes
import GeoffreyApp.api.commands as commands
from GeoffreyApp.api.key import check_request_for_key, check_key
from GeoffreyApp.errors import *
from GeoffreyApp.models import PermissionLevel


def run_command(request, command_name, req_type, key):
    params = request.dict()
    params.pop("api")

    command_name = command_name.lower()
    try:
        if command_name in commands.command_dict[req_type]:
            command = commands.command_dict[req_type][command_name]

            if key.has_command_permission(command.permission_level):
                response = command.func(**params)
            else:
                response = {}
        else:
            raise CommandNotFound
    except Exception as e:
        response = {"error": e.__class__.__name__, "error_message": str(e)}
        if getattr(settings, "DEBUG", False):
            traceback.print_exception(type(e), e, e.__traceback__, file=sys.stderr)

    return JsonResponse(response, safe=False)


def get_commands(key):
    command_list = []

    for request in commands.command_dict:
        for command_name in commands.command_dict[request]:
            command = commands.command_dict[request][command_name]
            json = command.json

            if key.has_command_permission(command.permission_level):
                command_list.append(json)

    return command_list


class CommandAPI(View):
    def get(self, request, command):
        get = request.GET
        key = check_request_for_key(get)
        if key is not None:
            if command.lower() == "commands":
                return JsonResponse(get_commands(key), safe=False)
            else:
                return run_command(get, command, RequestTypes.GET, key)
        return JsonResponse({})

    def post(self, request, command):
        post = request.POST
        key = check_request_for_key(request)

        if key is not None:
            return run_command(post, command, RequestTypes.POST, key)
        else:
            return JsonResponse({})


class SettingsAPI(View):
    def get(self, request):
        key = check_request_for_key(request.GET)
        if key.has_command_permission(PermissionLevel.PLAYER):
            response = {
                "BOT_PREFIX": getattr(settings, 'GEOFFREY_BOT_PREFIX', '?'),
                "ERROR_USERS": getattr(settings, 'GEOFFREY_BOT_ERROR_USERS', []),
                "MOD_RANKS": getattr(settings, 'GEOFFREY_BOT_MOD_RANK', []),
                "STATUS": getattr(settings, 'GEOFFREY_BOT_STATUS', 'sed')
            }
        else:
            response = {}

        return JsonResponse(response)