def migrate(db, trackers):
    c = db.cursor()
    habits = trackers_to_habits(trackers)
    for habit in habits:
        existing_habit = check_habit_duplicate(c, habit)
        if not existing_habit:
            add_to_database(c, habit)
        else:
            print(f"Found duplicate Habit: {existing_habit} - skipping.")

    # DEBUGGING
    c.execute("""select * from Habits""")
    print(c.fetchall())


def trackers_to_habits(trackers):
    habits = []
    # for each list entry tracker dict transform to habit dict
    for tracker_name in trackers.keys():
        t = trackers[tracker_name]
        habits.append(
            {
                "archived": 0 if t["hidden"] == False else 1,
                "color": 11 if t.get("score", 0) != "-1" else 0,
                "description": t["label"],
                "freq_den": 1,
                "freq_num": 1,
                "highlight": 0,
                "name": f"{t['emoji']} {t['label']}",
                "question": "",
                "unit": "" if t["uom"] == "num" else t["uom"],
                "uuid": t["id"],
            }
            # FIXME conditional for ranges (if type = range > habits[-1]['type'] = intforrangetype; habits[-1]['max'] =)
        )
    return habits


def check_habit_duplicate(cursor, habit):
    cursor.execute("select name from Habits where uuid = ?", [habit["uuid"]])
    name = cursor.fetchone()
    if name:
        return name[0]
    return False


def add_to_database(cursor, habit_dict):
    placeholder = ", ".join("?" * len(habit_dict))
    columns = ", ".join(habit_dict.keys())
    sql = "insert into `{table}` ({columns}) values ({values});".format(
        table="Habits", columns=columns, values=placeholder
    )
    values = list(habit_dict.values())
    cursor.execute(sql, values)


# grab next tracker info

# look for unique id of next habit
#   if exists skip and warn user

# insert tracker into habit table

# FOR REPETITION MIGRATION
# c.execute(
#     """
#     INSERT INTO
#     Repetitions(id, habit, timestamp, value)
#     VALUES (NULL, 5, 1629676800000, 2)
#     """
# )
# c.execute(
#     """
#     INSERT INTO
#     Repetitions(id, habit, timestamp, value)
#     VALUES (NULL, 6, 1629676800000, 2)
#     """
# )
#     """
# )
#     """
# )
#     """
# )
#     """
# )
#     """
# )
#     """
# )
#     """
# )
#     """
# )
#     """
# )
#     """
# )