import requests
import adal

def get_access_token(client_id, client_secret):
    authority_url = 'https://login.microsoftonline.com/mathworks.onmicrosoft.com'
    context = adal.AuthenticationContext(
    authority_url,
    validate_authority=True,
    api_version=None
    )
    token = context.acquire_token_with_username_password(
#    token = context.acquire_token_with_client_credentials(
        resource='https://analysis.windows.net/powerbi/api',
        username= username,
        password= password,
#        client_secret= secret_id,
        client_id= client_id,
#        scope= 'openid',
#        tenant= 'mathworks.onmicrosoft.com',
    )
    access_token = token['accessToken']     
    return (access_token)


def get_embed_token(group_id, report_id, access_token):
    dest = 'https://api.powerbi.com/v1.0/myorg/groups/' + group_id + '/reports/' + report_id + '/GenerateToken'
    embed_url = 'https://app.powerbi.com/reportEmbed?reportId=' + report_id + '&groupId=' + group_id
    headers = {'Authorization': 'Bearer ' + access_token}
    settings = {'accessLevel': 'View',
                'allowSaveAs': 'false'}

#vals.Add(new KeyValuePair<string, string>("grant_type", "password"));
#vals.Add(new KeyValuePair<string, string>("scope", "openid"));
#vals.Add(new KeyValuePair<string, string>("resource", "https://analysis.windows.net/powerbi/api"));
#vals.Add(new KeyValuePair<string, string>("client_id", ""));
#vals.Add(new KeyValuePair<string, string>("client_secret", ""));
#vals.Add(new KeyValuePair<string, string>("username", ""));
#vals.Add(new KeyValuePair<string, string>("password", ""));

    response = requests.post(dest, data=settings, headers=headers)
    print('Embed token response: ', response.status_code, response.reason, response.text)
    token = response.json().get('token')
    return {'token': token, 'embed_url': embed_url, 'report_id': report_id}


if __name__ == "__main__":
    client_id = '**********'
    secret_id = '********'
    group_id = '********'
    report_id = '*********'
    password = '******'
    username = '********'

    # First we get the access token for our app (?)
    access_token = get_access_token(client_id, secret_id)
    print('access token: {}'.format(access_token))

    # Then we get an embed token so we can "embed" on a web page (?)
    embed_token = get_embed_token(group_id, report_id, access_token)
    print('embed token response', embed_token)

    # Then we can use javascript on our web page to embed the controls/data
    # (TBD)