SW 2023-03-24

# app.py
from datetime import datetime, timedelta

from date_tools \
    import str_to_datetime, distance_between_dates

from flask import Flask, request, render_template

NAME_FOR_DATE_HTML_INPUT = "d"

app = Flask(__name__)

"""
manual calls:
http://127.0.0.1:5555/distance?d=1970-08-01
"""
@app.route("/distance", methods=['POST', 'GET'])
def distance():
    bGET:bool = request.method == 'GET'
    bPOST:bool = request.method == 'POST'

    if(bPOST):
        the_user_date:str =\
            request.form[NAME_FOR_DATE_HTML_INPUT]
    else:
        if(bGET):
            the_user_date: str = \
                request.args[NAME_FOR_DATE_HTML_INPUT]
        # if
    # if-else

    the_date:datetime = str_to_datetime(
        the_user_date
    )

    diff:dict = distance_between_dates(
        the_date
    )

    """
    import json
    return json.dumps(diff)
    """
    return diff
# def distance

@app.route("/", methods=['POST', 'GET'])
def respond_root():
    #return "<h1>The only service available is at /distance</h1>"
    return render_template(
        "input_date.html"
    )
# def respond_root

app.run(
    host="0.0.0.0",
    port=5555,
    debug=True
)