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var JarrDispatcher = require('../dispatcher/JarrDispatcher');
var MiddlePanelActionTypes = require('../constants/JarrConstants').MiddlePanelActionTypes;
var jquery = require('jquery');
var MiddlePanelStore = require('../stores/MiddlePanelStore');
var _last_fetched_with = {};
var shouldFetch = function(filters) {
if(filters.filter != null // undefined means unchanged
&& (_last_fetched_with.filter != 'all'
|| _last_fetched_with.filter != filters.filter)) {
return true;
}
if(_last_fetched_with.filter_type != null) {
if(_last_fetched_with.filter_type != filters.filter_type) {
return true;
}
if(_last_fetched_with.filter_id != filters.filter_id) {
return true;
}
}
return false;
}
var reloadIfNecessaryAndDispatch = function(dispath_payload) {
if(shouldFetch(dispath_payload)) {
filters = MiddlePanelStore.getRequestFilter();
for (var key in filters) {
if(dispath_payload[key] != null) {
filters[key] = dispath_payload[key];
}
}
jquery.getJSON('/middle_panel', dispath_payload, function(payload) {
dispath_payload.articles = payload.articles;
JarrDispatcher.dispatch(dispath_payload);
_last_fetched_with = MiddlePanelStore.getRequestFilter();
});
} else {
JarrDispatcher.dispatch(dispath_payload);
}
}
var MiddlePanelActions = {
reload: function() {
filters = MiddlePanelStore.getRequestFilter();
jquery.getJSON('/middle_panel', filters, function(payload) {
_last_fetched_with = filters;
JarrDispatcher.dispatch({
type: MiddlePanelActionTypes.RELOAD_MIDDLE_PANEL,
articles: payload.articles,
});
});
},
removeParentFilter: function(filter_type, filter_id) {
reloadIfNecessaryAndDispatch({
type: MiddlePanelActionTypes.MIDDLE_PANEL_PARENT_FILTER,
filter_type: null,
filter_id: null,
});
},
setCategoryFilter: function(category_id) {
reloadIfNecessaryAndDispatch({
type: MiddlePanelActionTypes.MIDDLE_PANEL_PARENT_FILTER,
filter_type: 'category',
filter_id: category_id,
});
},
setFeedFilter: function(feed_id) {
reloadIfNecessaryAndDispatch({
type: MiddlePanelActionTypes.MIDDLE_PANEL_PARENT_FILTER,
filter_type: 'feed',
filter_id: feed_id,
});
},
setFilterAll: function() {
reloadIfNecessaryAndDispatch({
type: MiddlePanelActionTypes.MIDDLE_PANEL_FILTER,
filter: 'all',
});
},
setFilterUnread: function() {
reloadIfNecessaryAndDispatch({
type: MiddlePanelActionTypes.MIDDLE_PANEL_FILTER,
filter: 'unread',
});
},
setFilterLiked: function() {
reloadIfNecessaryAndDispatch({
type: MiddlePanelActionTypes.MIDDLE_PANEL_FILTER,
filter: 'liked',
});
},
};
module.exports = MiddlePanelActions;
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