import datetime
import firebase_admin
import xlsxwriter as xlsxwriter
from firebase_admin import credentials, firestore

import params
from pojo.ReserveResultPojo import ReserveResultPojo, PublishType
from pojo.SimInfoPojo import SimInfoPojo
from pojo.contact_pojo import ContactPojo
from utils.excel_reader import ExcelHelper

ERROR_COLLECTION_NAME = "error_items"
CONTACT_COLLECTION_NAME = "contact_list"
SIM_INFOS = "sim_infos"
TIMEOUT = "timeout_items"


class DataManager:
    batch_size = 20

    def __init__(self):
        cred = credentials.Certificate("appointment.json")
        self._app = firebase_admin.initialize_app(cred)
        self._db = firestore.client()
        contact_collection = self._db.collection(CONTACT_COLLECTION_NAME)
        self._contact_list = []
        for contact in contact_collection.stream():
            contact_pojo = ContactPojo.from_firestore_dict(contact.to_dict())
            self._contact_list.append(contact_pojo)

    def get_all_error_items(self):
        pass

    def get_all_sim_infos(self):
        sim_info_collection = self._db.collection(SIM_INFOS)
        return sim_info_collection

    def get_all_successful_items(self):
        doc_ref = self._db.collection(str(datetime.date.today()))
        return doc_ref

    def save_sim_info(self, simInfoPojo: SimInfoPojo):
        doc_ref = self._db.collection(SIM_INFOS).document(simInfoPojo.phone)
        doc_ref.set(simInfoPojo.to_firestore_dict())
        contact_found = [contact for contact in self._contact_list if contact.position == simInfoPojo.position]
        if len(contact_found) > 0:
            #     link the phone number with contact
            contact = contact_found[0]
            phone = simInfoPojo.phone[2:len(simInfoPojo.phone)]
            ccid = simInfoPojo.ccid
            self._db.collection(CONTACT_COLLECTION_NAME).document(contact.passport).update(
                {'phone': phone, 'ccid': ccid})
        else:
            print("error, contact not found")

    def save(self, result: ReserveResultPojo):
        if result.type == PublishType.SUCCESS:
            # get id
            id = result.url.split("/")[-1]
            result.id = id
            document_name = str(datetime.date.today())
            doc_ref = self._db.collection(document_name).document(result.id)
            doc_ref.set(result.to_firestore_dict())
        else:
            if len(result.phone) > 0:
                doc_ref = self._db.collection(ERROR_COLLECTION_NAME).document(result.phone)
                doc_ref.set(result.to_firestore_dict())

    def save_timeout_contact(self, contact: ContactPojo):
        doc_ref = self._db.collection(TIMEOUT).document(str(contact.phone))
        doc_ref.set(contact.to_firestore_dict())

    def _delete_collection(self, coll_ref, batch_size):
        docs = coll_ref.limit(batch_size).stream()
        deleted = 0

        for doc in docs:
            print(f'Deleting doc {doc.id} => {doc.to_dict()}')
            doc.reference.delete()
            deleted = deleted + 1

        if deleted >= batch_size:
            return self._delete_collection(coll_ref, batch_size)

    def clear_all_sim_info(self):
        coll_ref = self._db.collection(SIM_INFOS)
        self._delete_collection(coll_ref, self.batch_size)

    def save_to_excel(self):
        # Start from the first cell. Rows and columns are zero indexed.
        sim_info_list = []

        for sim in self.get_all_sim_infos().stream():
            print(sim)
            sim_pojo = SimInfoPojo.from_firestore_dict(sim.to_dict())
            sim_info_list.append(sim_pojo)
        row = 0
        col = 0
        # Create a workbook and add a worksheet.
        workbook = xlsxwriter.Workbook('sim_infos.xlsx')
        worksheet = workbook.add_worksheet()
        for info in sim_info_list:
            # Iterate over the data and write it out row by row.
            worksheet.write(row, col, info.phone[2:len(info.phone)])
            worksheet.write(row, col + 1, info.ccid)
            worksheet.write(row, col + 2, info.position)
            row += 1
        workbook.close()

    def upload_contact_list_to_cloud(self):
        excel_reader = ExcelHelper()
        contacts = excel_reader.read_contacts()
        collections = self._db.collection(CONTACT_COLLECTION_NAME)
        for contact in contacts:
            new_contact = collections.document(contact.passport)
            new_contact.set(contact.to_firestore_dict())

    def read_contacts_from_db(self) -> list:
        contact_collection = self._db.collection(CONTACT_COLLECTION_NAME)
        return contact_collection


if __name__ == '__main__':
    params.firebase_store_manager.upload_contact_list_to_cloud()
    # params.firebase_store_manager.save_to_excel()
    # params.firebase_store_manager.clear_all_sim_info()