add shuffle mecanism to LibraryMap

src/store/modules/library.js

@@ -6,6 +6,7 @@ import {
   parseNodesQueryParams,
   getUniqueNodesIds,
   getRelatedNodesIds,
+  getRandomIds,
   buildTree
 } from '@/store/utils.js'
 
@@ -13,6 +14,7 @@ import {
 export default {
   state: {
     trees: {},
+    randomNodes: undefined,
     nodebook: undefined,
 
     // LibraryOptions options
@@ -89,6 +91,10 @@ export default {
       state.nodeDepartId = id
     },
 
+    'SET_RANDOM_NODES' (state, ids) {
+      state.randomNodes = ids
+    },
+
     'SET_SEARCH' (state, str) {
       state.search = str
     }
@@ -114,14 +120,8 @@ export default {
     },
 
     async 'INIT_LIBRARY_MAP' ({ state, commit, dispatch }) {
-      const departIds = await dispatch('INIT_LIBRARY')
-      const ids = departIds.slice(0, 3)
-      const departNodes = await dispatch('GET_NODES', { ids, dataLevel: 'partial' })
-      const relatedIds = getRelatedNodesIds(departNodes, ids)
-      const relatedNodes = await dispatch('GET_NODES', { ids: relatedIds, dataLevel: 'partial' })
-      const nodes = [...departNodes, ...relatedNodes]
-      commit('SET_TAGS_OPTIONS', nodes)
-      return nodes
+      await dispatch('INIT_LIBRARY')
+      return dispatch('ROLL_RANDOM_NODES')
     },
 
     async 'INIT_LIBRARY_LIST' ({ state, commit, dispatch }) {
@@ -186,6 +186,17 @@ export default {
       return getters.nodeTree
     },
 
+    async 'ROLL_RANDOM_NODES' ({ state, rootState, commit, dispatch }) {
+      commit('SET_RANDOM_NODES', undefined)
+      const ids = getRandomIds(rootState.ids.depart)
+      const departNodes = await dispatch('GET_NODES', { ids, dataLevel: 'partial' })
+      const relatedIds = getRelatedNodesIds(departNodes, ids)
+      const relatedNodes = await dispatch('GET_NODES', { ids: relatedIds, dataLevel: 'partial' })
+      const nodes = [...departNodes, ...relatedNodes]
+      commit('SET_RANDOM_NODES', [...ids, ...relatedIds])
+      commit('SET_TAGS_OPTIONS', nodes)
+    },
+
     'UPDATE_QUERY_MODE' (store, mode) {
       if (router.currentRoute.query.mode === mode) return
       router.push({ query: { mode } })
@@ -255,8 +266,14 @@ export default {
       })
     },
 
+    // LibraryMap
+    randomNodes: (state, getters, rootState) => {
+      if (state.randomNodes === undefined) return
+      return state.randomNodes.map(id => rootState.nodes[id])
+    },
+
     // LibraryTree
-    nodeTree: (state, rootState) => {
+    nodeTree: state => {
       return state.trees[state.nodeDepartId] || { nodes: [], links: [] }
     },