from flask_restful import Resource, request
from flask_restful import current_app
from requests.auth import HTTPBasicAuth

from helpers.Error import ImportApiError
from datetime import datetime
import requests
import json


class WriteJobResultToDrupal(Resource):
    def post(self, job_drupal_uuid, job_log_drupal_uuid):
        """
        Write the job summary to Drupal job log (in field_summary)
        ---
        tags:
          - reporting
        parameters:
        - in: path
          name: job_drupal_uuid
          required: true
          description: job log uuid
          type: string
        - in: path
          name: job_log_drupal_uuid
          required: true
          description: job report log uuid
          type: string
        - in: body
          name: body
          required: true
          schema:
              properties:
                sessionId:
                    type: string
                    example: "550e8400-e29b-11d4-a716-446655440000"
                step:
                    type: string
                    example: "media-metadata-extractor"
                total:
                    type: integer
                    example: 468
                success:
                    type: integer
                    example: 413
                ignore:
                    type: integer
                    example: 0
                warning:
                    type: integer
                    example: 455
                fatal:
                    type: integer
                    example: 0
                earliest:
                    type: string
                    example: "2021-03-08T14:02:23.232"
                latest:
                    type: string
                    example: "latest"
                elapsedTime:
                    type: string
                    example: "00:03:11.219"
                recordSetId:
                    type: string
                    example: "fss-001"
                institutionId:
                    type: string
                    example: "fss"
                messageId:
                    type: string
                    example: "1b7d8224-451a-4afb-b5d2-6537acb74051"
                previousMessageId:
                    type: string
                    example: "04543477-3bb5-4d01-a318-52ded1ce5e1c"
                version:
                    type: string
                    example: "3"
        responses:
          200:
            description: It was successful
          404:
            description: No log result with such a uuid
          500:
            description: There was a problem
        """
        try:
            body = request.json
            current_app.logger.debug("report data: " + json.dumps(body, indent=2))
            fatal = body['fatal']
            status = 'FAILED'
            if fatal == 0:
                status = 'SUCCESS'
            return write_results(job_drupal_uuid, job_log_drupal_uuid, status, body)
        except ImportApiError as e:
            return {'error': e.message}, 500


def write_results(job_drupal_uuid, job_log_drupal_uuid, status, report):
    current_app.logger.debug("job-uuid to write: " + job_drupal_uuid)
    current_app.logger.debug("job-report-uuid to write: " + job_log_drupal_uuid)
    current_app.logger.debug("report to write: " + json.dumps(report, indent=2))
    headers = {
        'Content-Type': 'application/vnd.api+json',
        'Accept': 'application/vnd.api+json',
        'X-API-Key': current_app.config['drupal-api-key']
    }

    user = current_app.config['drupal-user']
    password = current_app.config['drupal-password']
    auth = HTTPBasicAuth(user, password)

    # read "status" and "message" from log_result
    previous_status = ''
    previous_report = ''
    previous_report_json = ''
    step = ''
    try:
        getUrl = current_app.config['drupal-api-url'] + \
            '/jsonapi/node/log_result/' + job_log_drupal_uuid
        response = requests.get(getUrl, headers=headers, auth=auth)
        logResult = response.json()['data']
        previous_status = logResult['attributes']['field_status']
        previous_report = logResult['attributes']['field_message']
    except requests.exceptions.RequestException:
        message = 'It was not possible to read form the Drupal API:' + getUrl +\
            '\nresponse: ' + response
        current_app.logger.error(message)
        raise ImportApiError(message)
    if previous_status == 'FAILED':
        status = previous_status
    if previous_report is None:
        previous_report_json = {}
    else:
        previous_report_json = json.loads(previous_report)
    step = report['step']
    previous_report_json[step] = report
    reportString = json.dumps(previous_report)

    # update values in drupal:
    patchCalls = {}
    patchUrl = current_app.config['drupal-api-url'] + \
        '/jsonapi/node/import_process/' + job_drupal_uuid

    patchData = {
        "data": {
            "id": job_drupal_uuid,
            "type": "node--import_process",
            "attributes": {
                "field_state": 0
            }
        }
    }
    patchCalls[patchUrl] = patchData

    patchUrl = current_app.config['drupal-api-url'] + \
        '/jsonapi/node/log_result/' + job_log_drupal_uuid

    patchData = {
        "data": {
            "id": job_log_drupal_uuid,
            "type": "node--job_result",
            "attributes": {
                "field_end_date": datetime.utcnow().strftime("%Y-%m-%dT%H:%M:%S+00:00"),
                "field_status": status,
                "field_message": reportString
            }
        }
    }
    patchCalls[patchUrl] = patchData
    returnVal = {'message': ''}

    for patchCall in patchCalls:
        url = patchCall
        data = patchCalls[patchCall]
        try:
            response = requests.patch(
                url,
                headers=headers,
                data=json.dumps(data)
            )
        except requests.exceptions.RequestException:
            message = "It was not possible to write to Drupal API \
                      via the following url " + url
            current_app.logger.error(message)
            raise ImportApiError(message)
        if response.status_code == 200:
            current_app.logger.debug('Updated: ' + url)
            returnVal['message'] += 'Updated: ' + url + '\n'
        elif response.status_code == 403:
            message = "Not authorized to write to: " + url
            current_app.logger.error(message)
            raise ImportApiError(message)
        elif response.status_code == 404:
            message = 'Not Found: ' + url
            current_app.logger.error(message)
            raise ImportApiError(message)
        elif response.status_code == 500:
            message = 'There was an internal server error for ' + url + ': ' + str(response) +\
                      '. Check the logs for details.'
            current_app.logger.error(message)
            raise ImportApiError(message)
        else:
            message = "Unknown response status code for drupal api for url " + url
            current_app.logger.error(message)
            raise ImportApiError(message)
    return returnVal