#!/usr/bin/env python3

from coldcall import ColdCall
from datetime import datetime
from csv import DictReader
import json

current_time = datetime.today()
with open("configuration.json") as config_file:
    config = json.loads(config_file.read())

## create the coldcall object
cc = ColdCall(record_attendance=False)

def get_missing(d=current_time):
    date_string = f'{d.month}/{d.day}/{d.year}'
    with open(config["optout_file"], 'r') as f:
        for row in DictReader(f, delimiter="\t"):
            if row["Date of class session you will be absent"] == date_string:
                yield(row[config["unique_name_rowname"]])

full_names = {}
registered_students = []
with open(config["roster_file"], 'r') as f:
    for row in DictReader(f, delimiter=","):
        student_no = row["StudentNo"].strip()
        registered_students.append(student_no)
        full_names[student_no] = f"{row[config['roster_firstname_rowname']]} {row[config['roster_lastname_rowname']]}"
# print("Registered:", registered_students) # useful for debug

missing_today = [x for x in get_missing(current_time)]
# print("Missing Today: ", missing_today)  # useful for debug

preferred_names = cc.get_preferred_names()
# print("Preferred names:", preferred_names)  # useful for debug

students_present = [s for s in registered_students if s not in missing_today]
# print("Students present:", students_present)  # useful for debug

for i in range(100):
    selected_student = cc.select_student_from_list(students_present)

    try:
        preferred_name = preferred_names[selected_student]
    except KeyError:
        preferred_name = "MISSING PREFERRED NAME"

    print(f"{i + 1}.",
          preferred_name, "::",
          selected_student, "::",
          full_names[selected_student])
    cc.record_coldcall(selected_student)