"""Application Handlers.

Requests are redirected to handlers, which are responsible for getting
information from the URL and passing it down to the logic layer. The way
each layer talks to each other is through Response objects which defines the
type status of the data and the data itself.

Please note: the Orchard uses the term handlers over views as convention
for clarity

See:
    oto.response for more details.
"""


from flask import g
from flask import jsonify
from flask import request

from oto import response
from oto.adaptors.flask import flaskify

from product_film import config
from product_film.api import app
from product_film.logic import hello
from product_film.logic import track_crop


@app.route('/', methods=['GET'])
def hello_world():
    """Hello World with an optional GET param "name"."""
    name = request.args.get('name', '')
    return flaskify(hello.say_hello(name))


@app.route('/<username>', methods=['GET'])
def hello_world_username(username):
    """Hello World on /<username>.

    Args:
        username (str): the user's username.
    """
    return flaskify(hello.say_hello(username))


@app.route(config.HEALTH_CHECK, methods=['GET'])
def health():
    """Check the health of the application."""
    return jsonify({'status': 'ok'})


@app.errorhandler(500)
def exception_handler(error):
    """Handle error when uncaught exception is raised.

    Default exception handler.
    Note: Exception will also be sent to Sentry if config.SENTRY is set.

    Returns:
        flask.Response: A 500 response with JSON 'code' & 'message' payload.
    """
    message = (
        'The server encountered an internal error '
        'and was unable to complete your request.')
    g.log.exception(error)
    return flaskify(response.create_fatal_response(message))


@app.route('/track/<int:tuid>/crop-information', methods=['GET'])
def get_track_crop_info(tuid):
    """Get Track Crop Info.

    Returns the track crop information for specific track id.

    Args:
        tuid (int): track id.

    Returns:
        flask.response: on successful, 200 status with JSON body
    """
    return flaskify(track_crop.get_track_crop_info(tuid))


@app.route('/track/<int:tuid>/crop-information', methods=['POST'])
def add_track_crop_info(tuid):
    """Add/Edit Track Crop Info.

    Args:
        tuid (int): track id.

    Returns:
        flask.response: on successful, 200 status with JSON body
    """
    return flaskify(track_crop.add_track_crop_info(request.get_json(), tuid))