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

import GeoffreyApp.api.commands as commands
from GeoffreyApp.errors import *
from GeoffreyApp.models import APIToken


def check_token(request, **kwargs):
    if "api" in request:
        key = request["api"]

        if APIToken.objects.filter(key=key, **kwargs).exists():
            return True

    return False


def run_command(request, command, req_type):
    command = command.lower()
    try:
        if command in commands.command_dict[req_type]:
            params = request.dict()
            params.pop("api")
            response = commands.command_dict[req_type][command]["func"](**params)
        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():
    command_list = []

    for request in commands.command_dict:
        for c in commands.command_dict[request]:
            command_list.append({"command": c, "help": commands.command_dict[request][c]["help"]})

    return command_list


class CommandAPI(View):
    def get(self, request, command):
        get = request.GET
        if check_token(get, commands_perm=True):
            if command.lower() == "commands":
                return JsonResponse(get_commands(), safe=False)
            else:
                return run_command(get, command, "GET")
        else:
            return JsonResponse({})

    def post(self, request, command):
        post = request.POST
        if check_token(post, commands_perm=True):
            return run_command(post, command, "POST")
        else:
            return JsonResponse({})

    def delete(self, request, command):
        delete = request.DELETE
        if check_token(delete, commands_perm=True):
            return run_command(delete, command, "DELETE")
        else:
            return JsonResponse({})


class SettingsAPI(View):
    def get(self, request):
        if check_token(request.GET, commands_perm=True):
            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)