application/services/content-service.js

import Immutable from 'immutable';

import alt from './../alt';
import Alt from 'alt';
import BaseService from './base-service';
import {ErrorService} from './error-service';

import {parseSrn} from './../util/strings';
import {info} from './../util/console';

/**
 * Interact with content API service
 */
class ContentService extends BaseService {

    updateContent(content) {
        return content;
    }

    updateContents(content) {
        return content;
    }

    updatePagination(pagination) {
        return pagination;
    }

    /**
     * Remove (delete) content item
     * @param  {string} id
     */
    remove(id) {
        return (dispatch) => {
            return this.delete('/v3/content/' + id)
                .then(() => {
                    info(arguments);
                })
                .catch((e) => {
                    ErrorService.add('error', 'Unable to delete content, usually this means you don\'t have permission to remove items.');
                });
        };
    }

    /**
     * Update existing content item
     * @param  {string}   id       UUID
     * @param  {object}   data     Hash of content data
     * @param  {Function} callback
     */
    update(id, data, callback) {
        return (dispatch) => {
            return this.put('/v3/content/' + id, data)
                .then((data) => {
                    info('Update returned', data);
                    this.updateContent(data.first());
                    if (callback) {
                        callback(data.first());
                    }
                })
                .catch((e) => {
                    ErrorService.add('error', 'Unable to save item, usually this means you don\'t have it checked out.');
                });
        }
    }

    /**
     * Create new content item
     * @param  {object}   data     Hash of content data
     * @param  {Function} callback
     */
    create(data, callback) {
        return this.post('/v3/content/', data)
            .then((data) => {
                info('Create returned', data);
                this.updateContent(data.first());
                if (callback) {
                    callback(data.first());
                }
                return data;
            });
    }

    upload(data, callback) {
        return this.postUpload('/v3/content/', data)
            .then((data) => {
                info('Create returned', data);
                this.updateContent(data.first());
                if (callback) {
                    callback(data.first());
                }
                return data;
            });
    }

    /**
     * Attempt to obtain a content lock, then update the content store
     * @param  {string} srn valid SRN
     */
    checkoutAndFetch(srn) {
        return (dispatch) => {
            return this.post('/v3/lock-request', {'srn': srn})
                .then((data) => {
                    info('Checkout and Fetch returned', data);
                    const parsedSrn = parseSrn(srn);
                    this.fetchOne(parsedSrn.uuid, {}, false);
                });
        };
    }

    /**
     * Attempt to release a content lock, then update content store
     * @param  {string} contentId Content UUID
     * @param  {string} lockId    Lock UUID
     */
    checkinAndFetch(contentId, lockId) {
        return (dispatch) => {
            return this.delete('/v3/lock-request/' + lockId)
                .then((data) => {
                    info('Checkon and fetch returned', data);
                    this.fetchOne(contentId, {}, false);
                });
        };
    }

    /**
     * Fetch single content update
     * @param  {string}  id          UUID
     * @param  {object}  opts        Hash of query options
     * @param  {Boolean} forceUpdate If true (default) force update to content store, otherwise, don't
     */
    fetchOne(id, opts, forceUpdate = true) {
        if (forceUpdate === true) {
            this.updateContent([]);
        }
        return (dispatch) => {
            return this.get('/v3/content/' + id, opts)
                .then((data) => {
                    info('FetchOne returned', data);
                    this.updateContent(data.first());
                });
        };
    }

    /**
     * Fetch paginated content items
     * @param  {object} opts Hash of query options
     */
    fetch(opts) {
        return (dispatch) => {
            return this.get('/v3/content', opts)
                .then((data) => {
                    info('Fetch returned', data);
                    this.updatePagination(Immutable.fromJS({
                        'first': data.get('first'),
                        'before': data.get('before'),
                        'current': data.get('current'),
                        'last': data.get('last'),
                        'next': data.get('next'),
                        'total_pages': data.get('total_pages'),
                        'total_items': data.get('total_items'),
                        'limit': data.get('limit')
                    }));

                    this.updateContents(data.get('items'))
                });
        };
    }

    /**
     * Run a query on the search endpoint. See search docs for query info
     * @param  {object} opts Query has
     */
    search(opts) {
        return (dispatch) => {
            return this.get('/v3/search', opts)
                .then((data) => {
                    info('Search returned', data);
                    this.updatePagination(Immutable.fromJS({
                        'first': data.get('first'),
                        'before': data.get('before'),
                        'current': data.get('current'),
                        'last': data.get('last'),
                        'next': data.get('next'),
                        'total_pages': data.get('total_pages'),
                        'total_items': data.get('total_items'),
                        'limit': data.get('limit')
                    }));

                    this.updateContents(data.get('items'))
                });
        };
    }

}

const service = alt.createActions(ContentService);

/**
 * Content Flux store. Tracks
 * <ul>
 *     <li>content</li>
 *     <li>contents</li>
 *     <li>pagination</li>
 * </ul>
 */
class ContentsStore {
    constructor() {
        this.state = {
            'content': Immutable.Map(),
            'contents': Immutable.Map(),
            'pagination': Immutable.Map()
        };

        this.bindListeners({
            'handleUpdateContent': service.UPDATE_CONTENT,
            'handleUpdateContents': service.UPDATE_CONTENTS,
            'handleUpdatePagination': service.UPDATE_PAGINATION
        });
    }

    handleUpdateContent(content) {
        this.setState({'content': content});
    }

    handleUpdateContents(content) {
        this.setState({'contents': content});
    }

    handleUpdatePagination(pagination) {
        this.setState({'pagination': pagination});
    }
}

const store = alt.createStore(ContentsStore, 'ContentsStore');

/**
 * Instace wrapper if you don't or can't use the singleton action and classes.
 *
 * Actions and store are both under the 'contents' key.
 */
class ContentFlux extends Alt {
    constructor(config = {}) {
        super(config);

        this.addActions('contents', ContentService);
        this.addStore('contents', ContentsStore);
    }
}

export {ContentFlux as default, service as ContentService, store as ContentStore};