115 lines
2.5 KiB
JavaScript
115 lines
2.5 KiB
JavaScript
var _ = require('lodash');
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var actions = require('../actions');
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module.exports = function(oldProfile, action) {
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switch(action.type) {
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case actions.launcher.LOAD_PROFILE_SUCCESS:
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return _.cloneDeep(action.profile);
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case actions.edit.MOVE_PROFILE_ITEM:
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return moveProfileItem(oldProfile, action.movedItem, action.targetItem);
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case actions.edit.ADD_PROFILE_ITEM:
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return addProfileItem(oldProfile, action.newItem, action.targetItem);
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case actions.edit.UPDATE_PROFILE_ITEM:
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return updateProfileItem(oldProfile, action.item, action.key, action.value);
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case actions.edit.SELECT_PROFILE_ITEM:
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return selectProfileItem(oldProfile, action.item);
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default:
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return oldProfile || null;
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}
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};
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function selectProfileItem(oldProfile, item) {
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var newProfile = _.cloneDeep(oldProfile);
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return newProfile;
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}
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function updateProfileItem(oldProfile, targetItem, key, value) {
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var newProfile = _.cloneDeep(oldProfile);
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var result = treeFind(newProfile, targetItem);
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result.item[key] = value;
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return newProfile;
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}
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function moveProfileItem(oldProfile, movedItem, targetItem) {
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var newProfile = _.cloneDeep(oldProfile);
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var previousParent = treeFind(newProfile, movedItem).parent;
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var newParent = treeFind(newProfile, targetItem).item;
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previousParent.items = _.reject(previousParent.items, function(item) {
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return _.isEqual(item, movedItem);
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});
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newParent.items = newParent.items || [];
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newParent.items.push(_.cloneDeep(movedItem));
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return newProfile;
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}
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function addProfileItem(oldProfile, newItem, targetItem) {
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var newProfile = _.cloneDeep(oldProfile);
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var newParent = treeFind(newProfile, targetItem).item;
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newParent.items = newParent.items || [];
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newParent.items.push(_.cloneDeep(newItem));
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return newProfile;
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}
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// Tree manipulation helpers
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function treeWalk(branch, func) {
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var items = branch.items;
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if(!items) return;
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for( var i = 0, item = items[i]; (item = items[i]); i++ ) {
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var breakHere = func(item, parent);
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if(breakHere) return breakHere;
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if(item.items) {
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breakHere = treeWalk(item, func);
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if(breakHere) return breakHere;
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}
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}
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}
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function treeFind(branch, obj) {
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var items = branch.items;
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if(!items) return;
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for( var i = 0, item = items[i]; (item = items[i]); i++ ) {
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if( _.isEqual(item, obj) ) {
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return {item: item, parent: branch};
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}
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if(item.items) {
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var result = treeFind(item, obj);
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if(result) return result;
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}
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}
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}
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