"""
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:
    sony_metadata.response for more details.
"""

from flask import jsonify
from flask import request

from sony_metadata import config
from sony_metadata import response
from sony_metadata.api import app
from sony_metadata.logic import label


@app.route(config.HEALTH_CHECK)
def health():
    """Check the health of the application."""
    return jsonify({'status': 'ok'})


@app.route('/label_fields/subaccount/<subaccount_id>', methods=['GET'])
def label_fields_subaccount(subaccount_id):
    """Get sony label fields associated with <subaccount_id>.

    Args:
        subaccount_id (str): the id of the subaccount (must be convertible
            to int).

    Returns:
        Response: Flask response.
    """
    try:
        subaccount_id = int(subaccount_id)
    except ValueError:
        return response.flaskify(response.create_error_response(
            code=response.ERROR_CODE_VALIDATION_ERROR,
            message='subaccount_id is not an int'))
    return response.flaskify(label.get_subaccount_labels(subaccount_id))


@app.route('/label_fields/vendor/<vendor_id>', methods=['GET'])
def label_fields_vendor(vendor_id):
    """Get sony label fields associated with <vendor_id>.

    Args:
        vendor_id (str): the id of the vendor (must be convertible to int).

    Returns:
        Response: Flask response.
    """
    try:
        vendor_id = int(vendor_id)
    except ValueError:
        return response.flaskify(response.create_error_response(
            code=response.ERROR_CODE_VALIDATION_ERROR,
            message='vendor_id is not an int'))
    return response.flaskify(label.get_vendor_labels(vendor_id))


@app.route('/label_fields/vendor/<vendor_id>', methods=['PUT'])
def cud_label_fields_vendor(vendor_id):
    """Create, update or delete metadata fields associated with <vendor_id>.

    Args:
        vendor_id (str): the id of the vendor (must be convertible to int).

    Returns:
        Response: JSON.
    """
    try:
        vendor_id = int(vendor_id)
    except ValueError:
        return response.flaskify(response.create_error_response(
            code=response.ERROR_CODE_VALIDATION_ERROR,
            message='vendor_id is not an int'))

    metadata = request.get_json()

    return response.flaskify(label.add_update_vendor_meta(vendor_id, metadata))


@app.route(
    '/label_fields/vendor/<int:vendor_id>/subaccount/<int:subaccount_id>',
    methods=['PUT'])
def cud_label_fields_subaccount(vendor_id, subaccount_id):
    """Create or update metadata fields associated with <subaccount_id>.

    Args:
        vendor_id (int): the id of the vendor.
        subaccount_id (int): the id of the subaccount.

    Returns:
        Response: Flask response.
    """
    return response.flaskify(
        label.add_update_vendor_meta(
            vendor_id, request.get_json(), subaccount_id))