/**
 * @function makeFetch
 * @param method
 * @param url
 * @param body
 * @returns {Promise<Response>}
 */
const makeFetch = (method, url, body) => {
    return fetch(url, {
        method: method,
        headers: {
            'Content-Type': 'application/json;charset=utf-8'
        },
        body: (body !== null) ? JSON.stringify(body) : null
    })
    .then(response => {

        if (response.ok) {
            return response.json();
        }

        if (response.status === 422) {
            return response.json();
        }

        throw {
            msg: 'Error while updating AccompanyingPeriod Course.',
            sta: response.status,
            txt: response.statusText,
            err: new Error(),
            body: response.body
        };
    });
}

/**
 * @function getFetch
 * @param url
 * @returns {Promise<Response>}
 */
const getFetch = (url) => {
    return makeFetch('GET', url, null);
}

/**
 * @function postFetch
 * @param url
 * @param body
 * @returns {Promise<Response>}
 */
const postFetch = (url, body) => {
    return makeFetch('POST', url, body);
}

/**
 * @function patchFetch
 * @param url
 * @param body
 * @returns {Promise<Response>}
 */
const patchFetch = (url, body) => {
    return makeFetch('PATCH', url, body);
}


/**
 * @function getHouseholdByPerson
 * @param person
 * @returns {Promise<Response>}
 */
const getHouseholdByPerson = (person) => {
    //console.log('getHouseholdByPerson', person.id)
    if (person.current_household_id === null) {
        throw 'Currently the person has not household!'
    }
    return getFetch(
        `/api/1.0/person/household/${person.current_household_id}.json`)
}

/**
 * @function getCourseByPerson
 * @param person
 * @returns {Promise<Response>}
 */
const getCourseByPerson = (person) => {
    //console.log('getCourseByPerson', person.id)
    return getFetch(
        `/api/1.0/person/accompanying-course/by-person/${person.id}.json`)
}

/**
 * @function getRelationship
 * @param person
 * @returns {Promise<Response>}
 */
const getRelationship = (person) => {
    //console.log('getRelationship', person.id)
    return getFetch(
        `/api/1.0/relations/relationship/by-person/${person.id}.json`)
}

/**
 * @function postRelationship
 * @param person
 * @returns {Promise<Response>}
 */
const postRelationship = (person) => {
    //console.log('postRelationship', person.id)
    return postFetch(
        `/api/1.0/relations/relationship.json`,
        {
            from: { type: 'person', id: 0 },
            to: { type: 'person', id: 0 },
            relation: { type: 'relation', id: 0 },
            reverse: bool
        }
    )
}

export {
    getHouseholdByPerson,
    getCourseByPerson,
    getRelationship,
    postRelationship
}