import json
import yaml
import requests

from datetime import (
    datetime, 
    timedelta
)
from ShipmentNotifierLogger import log
    
SETTINGS = yaml.safe_load(open('../ShipmentNotifierSettings.yaml'))

def sendDiscordNotification(*args, settings=SETTINGS):
    now = datetime.now()
    currentTime = now.strftime("%Y-%m-%d %H:%M:%S")
    newLine = '\n'
    
    shipmentNotification = requests.post(
        SETTINGS['DISCORD_WEBHOOK'], 
        json = {
            "embeds": [
                {
                    "title": ":package: New Inbound Shipment Detected :package:",
                    "url": f"https://sellercentral.amazon.co.uk/fba/sendtoamazon?wf={args[0]}",
                    "color": 4886754,
                    "footer": {
                        "text": f"ShipmentNotifier ({args[0]}) • {currentTime}"
                    },
                    "fields": [
                        {
                            "name": "Shipment Information",
                            "value": f'''
                                > Inbound Shipment Plan ID: {args[0]}
                                > Creation Date: {args[1]['creationDate']}
                                > Destination Fulfilment Centres: {', '.join(destination for destination in args[1]['destinations'])}
                                > Shipments: {', '.join(f'[{shipmentID}](https://sellercentral.amazon.co.uk/fba/inbound-shipment/summary/{shipmentID}/contents)' for shipmentID in args[1]['shipmentIDs'])}
                            '''
                        },
                        {
                            "name": "Shipment Contents",
                            "value": f'''
                                {newLine.join(f"> {MSKU}: {Count}" for MSKU, Count in args[1]['contents'].items())}
                            '''
                        }
                    ]
                }
            ]
        },
    )

def updateSentNotifications(inboundPlanId):
    with open('../ShipmentNotifierSentNotifications.json') as sentNotificationsJSON:
        sentNotifications = json.load(sentNotificationsJSON)

    sentNotifications['sentNotifications'].append(inboundPlanId)

    with open('../ShipmentNotifierSentNotifications.json', mode='w') as outputSentNotifications:
        outputSentNotifications.write(json.dumps(sentNotifications, indent=4))

def isInboundShipmentPlanIDInSentNotifications(inboundShipmentPlanId):
    with open('../ShipmentNotifierSentNotifications.json') as sentNotificationsJSON:
        sentNotifications = json.load(sentNotificationsJSON)

    if inboundShipmentPlanId in sentNotifications['sentNotifications']:
        return True
    else:
        return False
    
def isInboundShipmentPlanWithinSpecifiedDelta(inboundShipmentPlanCreationTime, delta=20160):
    currentTime = datetime.now()
    inboundShipmentPlanTime = datetime.strptime(inboundShipmentPlanCreationTime, '%Y-%m-%dT%H:%M:%SZ') 
    timeDelta = currentTime - inboundShipmentPlanTime

    log(f'Current time: {currentTime}', 'info')
    log(f'Inbound shipment plan creation time: {inboundShipmentPlanTime}', 'info')
    log(f'Time delta: {timeDelta}', 'info')
    
    if timeDelta < timedelta(minutes=delta):
        return True
    else:
        return False