fc3e: PostsFilterBar — artist autocomplete + platform v-select with URL-driven hydration

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

frontend/src/components/posts/PostsFilterBar.vue

@@ -0,0 +1,140 @@
+<template>
+  <div class="fc-posts-filters">
+    <v-autocomplete
+      v-model="artistModel"
+      :items="artistOptions"
+      :loading="artistLoading"
+      :search="artistQuery"
+      item-title="name"
+      item-value="id"
+      label="Artist"
+      density="compact"
+      hide-details
+      clearable
+      no-filter
+      return-object
+      style="min-width: 240px"
+      @update:search="onArtistSearch"
+      @update:model-value="onArtistPicked"
+    />
+
+    <v-select
+      v-model="platformModel"
+      :items="platformItems"
+      label="Platform"
+      density="compact"
+      hide-details
+      clearable
+      style="min-width: 180px"
+      @update:model-value="emitFilters"
+    />
+
+    <v-btn
+      v-if="hasFilters"
+      variant="text" size="small"
+      @click="clearAll"
+    >Clear</v-btn>
+  </div>
+</template>
+
+<script setup>
+import { computed, onMounted, ref, watch } from 'vue'
+import { useSourcesStore } from '../../stores/sources.js'
+import { usePlatformsStore } from '../../stores/platforms.js'
+
+const props = defineProps({
+  artistId: { type: Number, default: null },
+  platform: { type: String, default: null },
+})
+const emit = defineEmits(['update:filters'])
+
+const sourcesStore = useSourcesStore()
+const platformsStore = usePlatformsStore()
+
+// Artist autocomplete state
+const artistQuery = ref('')
+const artistOptions = ref([])
+const artistLoading = ref(false)
+const artistModel = ref(null)
+
+// Platform v-select state
+const platformItems = computed(() =>
+  (platformsStore.platforms || []).map(p => ({ title: p.key, value: p.key }))
+)
+const platformModel = ref(props.platform)
+
+const hasFilters = computed(
+  () => artistModel.value != null || platformModel.value != null
+)
+
+let _searchTimer = null
+function onArtistSearch(q) {
+  artistQuery.value = q
+  clearTimeout(_searchTimer)
+  if (!q || !q.trim()) {
+    artistOptions.value = artistModel.value ? [artistModel.value] : []
+    return
+  }
+  _searchTimer = setTimeout(async () => {
+    artistLoading.value = true
+    try {
+      const results = await sourcesStore.autocompleteArtist(q, 20)
+      artistOptions.value = results
+    } finally {
+      artistLoading.value = false
+    }
+  }, 200)
+}
+
+function onArtistPicked() {
+  emitFilters()
+}
+
+function emitFilters() {
+  emit('update:filters', {
+    artist_id: artistModel.value?.id ?? null,
+    platform: platformModel.value || null,
+  })
+}
+
+function clearAll() {
+  artistModel.value = null
+  platformModel.value = null
+  artistOptions.value = []
+  artistQuery.value = ''
+  emitFilters()
+}
+
+onMounted(async () => {
+  await platformsStore.loadAll()
+  // If a deep-link arrives with an artist_id, hydrate the selected display.
+  if (props.artistId != null) {
+    const seed = { id: props.artistId, name: `Artist #${props.artistId}` }
+    artistModel.value = seed
+    artistOptions.value = [seed]
+  }
+})
+
+watch(() => props.artistId, (val) => {
+  if (val == null) {
+    artistModel.value = null
+  } else if (artistModel.value?.id !== val) {
+    const seed = { id: val, name: `Artist #${val}` }
+    artistModel.value = seed
+    artistOptions.value = [seed]
+  }
+})
+
+watch(() => props.platform, (val) => {
+  if (platformModel.value !== val) platformModel.value = val || null
+})
+</script>
+
+<style scoped>
+.fc-posts-filters {
+  display: flex;
+  gap: 0.75rem;
+  align-items: center;
+  padding-bottom: 1rem;
+}
+</style>