application/redux/actions/tag-actions.js

import BaseService from './../../services/base-service';

class TagService extends BaseService {

    fetch(opts) {
        return this.get('/v3/tag', opts);
    }

    fetchOne(id) {
        return this.get('/v3/tag/' + id);
    }

    create(data) {
        return this.post('/v3/tag', data);
    }

    update(id, data) {
        return this.put('/v3/tag/' + id, data);
    }

    remove(uuid) {
        return this.delete('/v3/tag/' + uuid);
    }
}

const service = new TagService;

/**
 * Action types
 */
export const TAGS_REQUEST = 'TAGS_REQUEST';
export const TAGS_RECEIVE = 'TAGS_RECEIVE';
export const TAG_RECEIVE = 'TAG_RECEIVE';
export const TAG_SELECTED = 'TAG_SELECTED';
export const TAGS_INVALIDATE = 'TAGS_INVALIDATE';

export const TAGS_RECEIVE_PAGINATION = 'TAGS_RECEIVE_PAGINATION';

/**
 * Action creators
 */
export function tagsReceivePagination(pagination) {
    return {
        type: TAGS_RECEIVE_PAGINATION,
        payload: {
            before: pagination.get('before'),
            current: pagination.get('current'),
            first: pagination.get('first'),
            last: pagination.get('last'),
            limit: pagination.get('limit'),
            next: pagination.get('next'),
            total_items: pagination.get('total_items'),
            total_pages: pagination.get('total_pages'),
        }
    };
}

export function tagsRequest(params = {}) {
    return {
        type: TAGS_REQUEST,
        payload: {
            params: params
        }
    };
}

export function tagsReceive(items) {

    return {
        type: TAGS_RECEIVE,
        payload: {
            tags: items ? items : []
        }
    };
}

export function tagReceive(tag) {
    return {
        type: TAG_RECEIVE,
        payload: {
            tag: tag ? tag : {}
        }
    };
}

export function tagSetSelected(tag) {
    return {
        type: TAG_SELECTED,
        payload: {
            selected: tag ? tag : false
        }
    };
}

export function tagsInvalidate() {
    return {
        type: TAGS_INVALIDATE,
        payload: {
        }
    };
}

export function tagUpdate(id, data) {
    return function(dispatch, getState) {
        dispatch(tagsRequest({}));

        return service.update(id, data)
            .then(response => {
                return dispatch(tagReceive(response.first()));
            });
   }
}

export function tagCreate(data) {
    return function(dispatch, getState) {
        dispatch(tagsRequest({}));

        return service.create(data)
            .then(response => {
                dispatch(tagSetSelected(response.first().get('uuid')));
                return dispatch(tagReceive(response.first()));
            });
   }
}

export function tagsShouldFetch(state) {
    const tags = state.tags;
    if (!tags.items.length) {
        return true;
    } else if (tags.isFetching) {
        return false;
    }

    return tags.didInvalidate;
}

export function tagsMaybeFetch(params = {}) {
    return function(dispatch, getState) {
        const tags = getState().tags.items;

        if (getState().tags.isFetching) {
            return Promise.resolve();
        }

        if (!tags.items || !tags.items.size) {
            return dispatch(tagsFetch(params));
        }

        return Promise.resolve();
    }
};

export function tagsFetch(params = {}) {
    return function(dispatch, getState) {
        dispatch(tagsRequest(params));

        params.per_page = params.per_page ? params.per_page : 20;
        params.order = params.order ? params.order : "name";
        params.dir = params.dir ? params.dir : "asc";

        // default page
        let page = 0;

        if (params.page) {
            // specific page is requested
            page = params.page;
        } else if (getState().tags.pagination.current) {
            // existing pagination
            page = getState().tags.pagination.current;
        }

        if (page) {
            params.page = page;
        }

        return service.fetch(params)
            .then(response => {
                dispatch(tagsReceivePagination(response));
                return dispatch(tagsReceive(response.get('items')));
            });
    };
}

export function tagsFetchOne(id) {
    return function (dispatch, getState) {
        dispatch(tagsRequest({}));

        return service.fetchOne(id)
            .then(response => {
                return dispatch(tagReceive(response.first()));
            });
    }
}

export function tagsRemove(uuid) {
    return function (dispatch, getState) {
        dispatch(tagsInvalidate());

        return service.remove(uuid);
    }
}