move all playlist related actions to store

src/components/filemanager/EditPlaylistModal.vue

+<template>
+  <b-modal
+    id="modal-edit-playlist"
+    size="lg"
+    :title="playlistEditor.mode === 'edit' ? 'Edit playlist' : 'Add new playlist'"
+    @ok="storePlaylist"
+  >
+    <b-row
+      v-if="playlistEditor.mode === 'edit'"
+      style="padding-bottom: 1em;"
+    >
+      <b-col
+        cols="3"
+      >
+        Playlist index:
+      </b-col>
+      <b-col>{{ playlistEditor.id }}</b-col>
+    </b-row>
+
+    <b-row>
+      <b-col cols="3">
+        Description:
+      </b-col>
+      <b-col>
+        <b-form-input
+          v-model="playlistEditor.description"
+          type="text"
+        />
+      </b-col>
+    </b-row>
+
+    <hr>
+
+    <p>Playlist entries:</p>
+
+    <!-- If no entries are here (i.e. we add a new playlist), only show
+    a hint that there's nothing here yet. -->
+    <div
+      v-if="playlistEditor.entries.length === 0"
+      align="center"
+    >
+      No entries yet. Add some.
+    </div>
+    <!-- As soon as we have at least one entry in our temporary playlist
+    we can display a table with all the info and action buttons -->
+    <div v-else>
+      <b-table
+        ref="playlistEditTable"
+        striped
+        :items="playlistEditor.entries"
+        :fields="playlistEditTableFields"
+      >
+        <!-- Column: Index
+             Here we just use the array index, because the playlist entries
+             are ordered as an array, without the need for an extra id field
+        -->
+        <template v-slot:cell(id)="data">
+          {{ data.index + 1 }}.
+        </template>
+
+        <!-- Column: Type
+             Based on the entry content (either file or uri), we display
+             a small badge indicating which type of source this is
+        -->
+        <template v-slot:cell(type)="data">
+          <b-badge
+            v-if="data.item.file"
+            variant="success"
+          >
+            File
+          </b-badge>
+          <b-badge
+            v-else-if="data.item.uri.startsWith('line://')"
+            variant="info"
+          >
+            Line-in
+          </b-badge>
+          <b-badge
+            v-else-if="data.item.uri.startsWith('http://') || data.item.uri.startsWith('https://')"
+            variant="light"
+          >
+            Stream
+          </b-badge>
+          <b-badge
+            v-else
+            variant="dark"
+          >
+            Other
+          </b-badge>
+        </template>
+
+        <!-- Column: Source
+             Here we display where this playlist entry is coming from
+        -->
+        <template v-slot:cell(source)="data">
+          <span v-if="data.item.file">
+            {{ getFileTitleForPlaylist(data.item.file.show, data.item.file.id) }}
+            <small><i>( file://{{ data.item.file.show }}/{{ data.item.file.id }} )</i></small>
+          </span>
+          <span v-else>
+            {{ data.item.uri }}
+          </span>
+        </template>
+
+        <!-- Column: Actions
+             Finally some buttons to reorder or delete playlist entries
+        -->
+        <template v-slot:cell(actions)="data">
+          <b-button-group size="sm">
+            <b-button
+              :disabled="data.index === 0"
+              @click="movePlaylistItemUp(data.index)"
+            >
+              <b class="upDownArrows">&uarr;</b>
+            </b-button>
+            <b-button
+              :disabled="data.index === playlistEditor.entries.length - 1"
+              @click="movePlaylistItemDown(data.index)"
+            >
+              <b class="upDownArrows">&darr;</b>
+            </b-button>
+            <b-button
+              variant="danger"
+              @click="deletePlaylistItem(data.index)"
+            >
+              Delete
+            </b-button>
+          </b-button-group>
+        </template>
+      </b-table>
+    </div>
+
+    <hr>
+
+    <!-- Below the table with the playlists entry we display buttons to
+    add new entries to the table - these can either be files from our
+    uploaded/imported files, or one of the preconfigured inputs, or a
+    stream.
+    TODO: should we disable choosing files that are still being imported?
+    TODO: make the inputs configurable
+    -->
+    <div>
+      <b-modal
+        id="modal-edit-playlist-add-stream"
+        title="Add stream to the playlist"
+        @ok="addPlaylistItemStream('save')"
+      >
+        <b-input
+          v-model="playlistEditor.newStreamURL"
+          type="url"
+        >
+          ...
+        </b-input>
+      </b-modal>
+      Add:
+      <b-button-group>
+        <b-dropdown text="File">
+          <b-dropdown-item
+            v-for="(file, index) in files"
+            :key="index"
+            @click="addPlaylistItemFile(file.show, file.id)"
+          >
+            {{ file.id }}: {{ file.metadata.title ? file.metadata.title : "" }} ({{ prettyNanoseconds(file.duration) }}, {{ prettyFileSize(file.size) }}, {{ file.source.uri }})
+          </b-dropdown-item>
+        </b-dropdown>
+        <b-dropdown text="Line-in">
+          <b-dropdown-item @click="addPlaylistItemLine('0')">
+            Studio 1
+          </b-dropdown-item>
+          <b-dropdown-item @click="addPlaylistItemLine('1')">
+            Preprod
+          </b-dropdown-item>
+          <b-dropdown-item @click="addPlaylistItemLine('2')">
+            Line 2
+          </b-dropdown-item>
+        </b-dropdown>
+        <b-button
+          @click="addPlaylistItemStream('openModal')"
+        >
+          Stream
+        </b-button>
+      </b-button-group>
+    </div>
+  </b-modal>
+</template>
+
+<script>
+import { mapGetters } from 'vuex'
+import prettyDate from '../../mixins/prettyDate'
+import filesize from 'filesize'
+
+export default {
+  mixins: [ prettyDate ],
+
+  // include the modal for displaying file import logs
+  data () {
+    return {
+      // for adding and editing the playlists we need some temporary storage
+      playlistEditor: {
+        id: null,
+        mode: 'add',  // should be either 'add' or 'edit'
+        description: '',
+        entries: [],
+        newStreamURL: null
+      },
+
+      // configuration of the playlists entries table
+      playlistEditTableFields: [
+        { key: 'id', label: 'Index' },
+        { key: 'type', label: 'Type' },
+        { key: 'source', label: 'Source' },
+        { key: 'actions', label: 'Actions', class: 'text-right' },
+      ]
+    }
+  },
+
+  computed: {
+    loaded () {
+      return {
+        playlists: this.$store.state.playlists.loaded.playlists,
+      }
+    },
+
+    ...mapGetters({
+      selectedShow: 'shows/selectedShow',
+      getPlaylistById: 'playlists/getPlaylistById',
+      files: 'files/files',
+      getFileById: 'files/getFileById',
+    })
+  },
+
+  methods: {
+    // We want to have a nice format for the file size, given a size in Bytes.
+    // For that we're useing the filesize npm module.
+    prettyFileSize: function (s) {
+      return filesize(s)
+    },
+
+    // return a string representing a file entry for the playlist editor
+    getFileTitleForPlaylist (show, id) {
+      // TODO: change structure of files array, so we can access all shows
+      // the user has access to.
+      let file = this.getFileById(id)
+      if (file && file.metadata.title) {
+        return show + ": " + file.metadata.title
+      } else {
+        return ""
+      }
+    },
+
+    movePlaylistItemUp (index) {
+      if (index > 0 && index < this.playlistEditor.entries.length) {
+        let temp = this.playlistEditor.entries[index - 1]
+        this.playlistEditor.entries[index - 1] = this.playlistEditor.entries[index]
+        this.playlistEditor.entries[index] = temp
+        this.$refs.playlistEditTable.refresh()
+      }
+    },
+
+    movePlaylistItemDown (index) {
+      if (index < this.playlistEditor.entries.length - 1 && index >= 0) {
+        let temp = this.playlistEditor.entries[index + 1]
+        this.playlistEditor.entries[index + 1] = this.playlistEditor.entries[index]
+        this.playlistEditor.entries[index] = temp
+        this.$refs.playlistEditTable.refresh()
+      }
+    },
+
+    deletePlaylistItem (index) {
+      if (index >= 0 && index < this.playlistEditor.entries.length) {
+        this.playlistEditor.entries.splice(index, 1)
+        this.$refs.playlistEditTable.refresh()
+      }
+    },
+
+    // add a file from the file manager to the playlist that is being edited
+    addPlaylistItemFile (show, id) {
+      let item = {}
+      item.file = {show: show, id: id}
+      this.playlistEditor.entries.push(item)
+    },
+
+    // add a line input to the playlist that is being edited
+    addPlaylistItemLine (line) {
+      this.playlistEditor.entries.push({uri: 'line://' + line})
+    },
+
+    // controls sub-modal to add a new URI to the playlist editor
+    addPlaylistItemStream (action) {
+      if (action === 'openModal') {
+        // the function gets called with the action 'openModal' when the users
+        // clicks on the add new stream button. then we clear all temp data and
+        // open the modal
+        this.playlistEditor.newStreamURL = ''
+        this.$bvModal.show('modal-edit-playlist-add-stream')
+      } else {
+        // when the user hits ok to add the new uri, this function gets called
+        // with the action 'save' and the modal closes automagically. so we
+        // just have to push a new entry to the playlist in the editor
+        if (this.playlistEditor.newStreamURL.trim().length > 0) {
+          this.playlistEditor.entries.push({uri: this.playlistEditor.newStreamURL})
+        }
+        // if an empty string was provided, we just do nothing
+      }
+    },
+
+    addPlaylist () {
+      this.playlistEditor.mode = 'add'
+      this.playlistEditor.id = null
+      this.playlistEditor.description = ''
+      this.playlistEditor.entries = []
+      this.$bvModal.show('modal-edit-playlist')
+    },
+
+    editPlaylist (id) {
+      this.playlistEditor.mode = 'edit'
+      this.playlistEditor.entries = []
+      this.playlistEditor.id = id
+      let playlist = this.getPlaylistById(id)
+      this.playlistEditor.description = playlist.description
+      for (let i in playlist.entries) {
+        let entry = {}
+        if (playlist.entries[i].file) {
+          entry.file = {}
+          entry.file.show = playlist.entries[i].file.show
+          entry.file.id = playlist.entries[i].file.id
+        } else {
+          entry.uri = playlist.entries[i].uri
+        }
+        this.playlistEditor.entries.push(entry)
+      }
+      this.$bvModal.show('modal-edit-playlist')
+    },
+
+    storePlaylist () {
+      // TODO: add some spinner or other visualisation while the playlist is added/updated
+      let playlist = {
+        description: this.playlistEditor.description,
+        entries: this.playlistEditor.entries
+      }
+      if (this.playlistEditor.mode === 'add') {
+        this.$store.dispatch('playlists/add', {
+          slug: this.selectedShow.slug,
+          playlist: playlist
+        })
+      } else if (this.playlistEditor.mode === 'edit') {
+        this.$store.dispatch('playlists/update', {
+          slug: this.selectedShow.slug,
+          id: this.playlistEditor.id,
+          playlist: playlist,
+          callback: () => {
+            this.$root.$emit('bv::refresh::table', 'playlistsTable')
+          }
+        })
+      }
+    },
+
+  },
+}
+</script>

src/components/filemanager/Playlists.vue

+<template>
+  <div>
+    <edit-playlists-modal ref="editPlaylistsModal" />
+
+    <!-- Only display a spinner if the playlists are not loaded yet -->
+    <div v-if="!loaded.playlists">
+      <b-row>
+        <b-col align="center">
+          <img
+            src="../../assets/radio.gif"
+            alt="loading data"
+          >
+        </b-col>
+      </b-row>
+    </div>
+
+    <!-- If all playlist data is loaded we can present a create button and
+    a table of playlists (if there are already any)-->
+    <div v-else>
+      <!-- If no playlists are available, only show an alert and a create button -->
+      <div
+        v-if="playlists.length === 0"
+        align="center"
+      >
+        <b-alert
+          show
+          variant="warning"
+        >
+          There are no playlists for this show yet.
+        </b-alert>
+        <b-button
+          variant="success"
+          @click="addPlaylist"
+        >
+          Create a playlist
+        </b-button>
+      </div>
+      <!-- In case there are playlists, show the button and then the table -->
+      <div v-else>
+        <div
+          align="center"
+          style="padding-bottom: 1.5em;"
+        >
+          <b-button
+            variant="success"
+            @click="addPlaylist"
+          >
+            Create a playlist
+          </b-button>
+        </div>
+        <b-table
+          id="playlistsTable"
+          striped
+          :fields="playlistsTableFields"
+          :items="playlists"
+        >
+          <!-- Column: Entries
+          This column displays the number of entries of the playlist.
+          -->
+          <template v-slot:cell(entries)="data">
+            {{ data.value.length }} items
+            <b-button
+              v-b-tooltip.html="playlistToolTip(data.value)"
+              variant="outline-success"
+              size="sm"
+            >
+              show entries
+            </b-button>
+          </template>
+
+          <!-- Column: Last edit
+          This column lists the last date this playlist was changed.
+          -->
+          <template v-slot:cell(updated)="data">
+            {{ prettyDateTime(data.value) }}
+          </template>
+
+          <!-- Column: Actions
+          This column displays the available buttons for actions the user can
+          take on this playlist (e.g. editing and deleting).
+          -->
+          <template v-slot:cell(actions)="data">
+            <b-button-group size="sm">
+              <b-button @click="editPlaylist(data.item.id)">
+                Edit
+              </b-button>
+              <b-button
+                variant="danger"
+                @click="deletePlaylist(data.item.id)"
+              >
+                Delete
+              </b-button>
+            </b-button-group>
+          </template>
+        </b-table>
+      </div>
+      <!-- End of playlists table -->
+    </div>
+  </div>
+</template>
+
+<script>
+import { mapGetters } from 'vuex'
+import prettyDate from '../../mixins/prettyDate'
+import editPlaylistsModal from './EditPlaylistModal.vue'
+
+export default {
+  components: {
+    'edit-playlists-modal': editPlaylistsModal,
+  },
+
+  mixins: [ prettyDate ],
+
+  // include the modal for displaying file import logs
+  data () {
+    return {
+      // for adding and editing the playlists we need some temporary stuff
+      playlistEditor: {
+        id: null,
+        mode: 'add',  // should be either 'add' or 'edit'
+        description: '',
+        entries: [],
+        newStreamURL: null
+      },
+
+      // configuration of the playlists table, which will use the playlists array as data
+      playlistsTableFields: [
+        { key: 'id', label: 'Index' },
+        { key: 'description', label: 'Description' },
+        { key: 'entries', label: 'Entries' },
+        { key: 'updated', label: 'Last edit' },
+        { key: 'actions', label: 'Actions', class: 'text-right' },
+      ],
+
+      playlistEditTableFields: [
+        { key: 'id', label: 'Index' },
+        { key: 'type', label: 'Type' },
+        { key: 'source', label: 'Source' },
+        { key: 'actions', label: 'Actions', class: 'text-right' },
+      ]
+    }
+  },
+
+  computed: {
+    loaded () {
+      return {
+        playlists: this.$store.state.playlists.loaded.playlists,
+      }
+    },
+
+    ...mapGetters({
+      selectedShow: 'shows/selectedShow',
+      playlists: 'playlists/playlists',
+    })
+  },
+
+  methods: {
+    playlistToolTip (entries) {
+      let text = '<div style="white-space: nowrap;" align="left">'
+      for (var i in entries) {
+        text += i + ': ' + entries[i].uri + '<br>'
+      }
+      text += '</div>'
+      return text
+    },
+
+    deletePlaylist (id) {
+      // TODO: add mechanism to indicate the running delete request in the files table
+      this.$store.dispatch('playlists/delete', {
+        slug: this.selectedShow.slug,
+        id: id
+      })
+    },
+
+    addPlaylist () {
+      this.$refs.editPlaylistsModal.addPlaylist()
+    },
+
+    editPlaylist (id) {
+      this.$refs.editPlaylistsModal.editPlaylist(id)
+    },
+  },
+}
+</script>

src/store/modules/playlists.js

+import axios from 'axios'
+import handleApiError from '../handleApiError'
+
 const state = {
+  playlists: [],
+  loaded: {
+    playlists: false,
+  }
+}
+
+const mutations = {
+  loading(state, item) { state.loaded[item] = false },
+  finishLoading(state, item) { state.loaded[item] = true },
+
+  setPlaylists (state, lists) { state.playlists = lists },
+  addPlaylist (state, list) { state.playlists.push(list) },
+  updatePlaylist (state, data) {
+    let i = state.playlists.findIndex(p => p.id === data.id)
+    if (i >= 0) { state.playlists[i] = data.playlist }
+    else { console.log('[ERROR] updatePlaylist: trying to update a non-existing list') }
+  },
+  deletePlaylist (state, id) {
+    let i = state.playlists.findIndex(p => p.id === id)
+    if (i >= 0) { state.playlists.splice(i, 1) }
+    else { console.log('[ERROR] deletePlaylist: trying to delete a non-existing list') }
+  }
 }
 
 const getters = {
+  playlists: state => state.playlists,
+  playlistCount: state => state.playlists.length,
+  getPlaylistById: state => id => {
+    let list
+    if (id !== undefined) {
+      list = state.playlists.find(l => l.id === id)
+      if (list === undefined) {
+        console.log('[ERROR] getPlaylistById: ID not found in store!')
+      }
+    }
+    return list
+  }
 }
 
 const actions = {
-}
+  fetch (ctx, data) {
+    ctx.commit('loading', 'playlists')
+    let uri = process.env.VUE_APP_API_TANK + 'shows/' + data.slug + '/playlists'
+    axios.get(uri, {
+      withCredentials: true,
+      headers: { 'Authorization': 'Bearer ' + ctx.rootState.auth.user.access_token }
+    }).then(response => {
+      // we don't have to check separately, if there are playlists, because tank
+      // always provides an empty array if there are no playlists (or even if there is no corresponding show)
+      ctx.commit('setPlaylists', response.data.results)
+      ctx.commit('finishLoading', 'playlists')
+      if (data && typeof(data.callback) === 'function