from flask import Flask, render_template, request

import logging
import os
import requests

app = Flask(__name__)
app.logger.setLevel(logging.INFO)

APP_VERSION = os.getenv('APP_VERSION')
BIND_HOST = os.getenv('BIND_HOST') or '0.0.0.0'
BIND_PORT = os.getenv('BIND_PORT') or '8000'


@app.before_request
def log_request():
    app.logger.info(
        'method=%s path=%s host=%s remote_addr=%s',
        request.method, request.path, request.host, request.remote_addr,
    )


@app.route('/')
def home():
    return f'Hello from app {APP_VERSION}'


@app.route('/kittens')
def kittens():
    # Get a URL to a random kitten photo.
    response = requests.get('https://api.thecatapi.com/v1/images/search?api_')

    try:
        # Response structure is as follows:
        # [{"id":"bL3lrUi1A","url":"ex.com/bL3lrUi1A.jpg","width":1280,"height":720}]
        data = response.json()
        kitten_url = data[0]['url']

        return render_template('index.html', kitten_url=kitten_url)
    except Exception as e:
        return f'Failed to fetch a kitten image :(\n {e}'


if __name__ == '__main__':
    app.run(host=BIND_HOST, port=BIND_PORT)