#!/usr/bin/python3

import sys
from urllib.parse import unquote

import flask

app = flask.Flask(__name__)
app.debug = True

enwiki = "en.wikipedia.org/wiki/"


@app.route("/")
def start() -> str:
    """Start form."""
    return flask.render_template("wikipedia_url.html")


@app.route("/flickr")
def flickr_search() -> str:
    """Search flickr."""
    wikipedia_url = flask.request.args["wikipedia"]
    start = wikipedia_url.find(enwiki) + len(enwiki)
    name = unquote(wikipedia_url[start:]).replace("_", " ")
    return flask.render_template(
        "flickr_search.html", name=name, wikipedia_url=wikipedia_url
    )


@app.route("/message")
def show_message() -> str:
    """Show message."""
    flickr_url = flask.request.args["flickr"]
    wikipedia_url = flask.request.args["wikipedia"]

    start = wikipedia_url.find(enwiki) + len(enwiki)
    wiki_part1 = wikipedia_url[:start]

    if len(sys.argv) > 4:
        name = sys.argv[4]
    else:
        wiki_part2 = unquote(wikipedia_url[start:])
        name = wiki_part2

    if "_(" in name:
        name = name[: name.find("_(")]
    name = name.replace("_", " ")

    if "/in/" in flickr_url:
        flickr_url = flickr_url[: flickr_url.find("/in/")]

    msg = flask.render_template(
        "message.jinja",
        flickr_url=flickr_url,
        wikipedia_url=wikipedia_url,
        name=name,
        wiki_part1=wiki_part1,
        wiki_part2=wiki_part2,
    )

    subject = f"Request to use your photo of {name} on Wikipedia"

    lines = msg.split("\n\n")

    return flask.render_template("show_message.html", subject=subject, lines=lines)


if __name__ == "__main__":
    app.run(host="0.0.0.0")