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odoo.define('unsplash.api', function (require) {
'use strict';
var Class = require('web.Class');
var rpc = require('web.rpc');
var Mixins = require('web.mixins');
var ServicesMixin = require('web.ServicesMixin');
var UnsplashCore = Class.extend(Mixins.EventDispatcherMixin, ServicesMixin, {
/**
* @constructor
*/
init: function (parent) {
Mixins.EventDispatcherMixin.init.call(this, arguments);
this.setParent(parent);
this._cache = {};
this.clientId = false;
},
//--------------------------------------------------------------------------
// Public
//--------------------------------------------------------------------------
/**
* Gets unsplash images from query string.
*
* @param {String} query search terms
* @param {Integer} pageSize number of image to display per page
* @returns {Promise}
*/
getImages: function (query, pageSize) {
var from = 0;
var to = pageSize;
var cachedData = this._cache[query];
if (cachedData && (cachedData.images.length >= to || (cachedData.totalImages !== 0 && cachedData.totalImages < to))) {
return Promise.resolve({ images: cachedData.images.slice(from, to), isMaxed: to > cachedData.totalImages });
}
return this._fetchImages(query).then(function (cachedData) {
return { images: cachedData.images.slice(from, to), isMaxed: to > cachedData.totalImages };
});
},
//--------------------------------------------------------------------------
// Private
//--------------------------------------------------------------------------
/**
* Fetches images from unsplash and stores it in cache
*
* @param {String} query search terms
* @returns {Promise}
* @private
*/
_fetchImages: function (query) {
if (!this._cache[query]) {
this._cache[query] = {
images: [],
maxPages: 0,
totalImages: 0,
pageCached: 0
};
}
var cachedData = this._cache[query];
var payload = {
query: query,
page: cachedData.pageCached + 1,
per_page: 30, // max size from unsplash API
};
return this._rpc({
route: '/web_unsplash/fetch_images',
params: payload,
}).then(function (result) {
if (result.error) {
return Promise.reject(result.error);
}
cachedData.pageCached++;
cachedData.images.push.apply(cachedData.images, result.results);
cachedData.maxPages = result.total_pages;
cachedData.totalImages = result.total;
return cachedData;
});
},
});
return UnsplashCore;
});
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