Initial commit

src/stores/queueStore.js

@@ -0,0 +1,86 @@
+import { defineStore } from 'pinia'
+import { ref, computed } from 'vue'
+
+export const useQueueStore = defineStore('queue', () => {
+  const queue = ref([])
+  const currentIndex = ref(-1)
+  const shuffle = ref(false)
+  const repeat = ref('off')
+
+  const currentTrack = computed(() => {
+    if (currentIndex.value < 0 || currentIndex.value >= queue.value.length) return null
+    return queue.value[currentIndex.value]
+  })
+
+  function setQueue(tracks, startIndex = 0) {
+    queue.value = tracks
+    currentIndex.value = startIndex
+  }
+
+  function nextTrack() {
+    if (queue.value.length === 0) return null
+    if (repeat.value === 'one') return queue.value[currentIndex.value]
+
+    let idx
+    if (shuffle.value) {
+      idx = Math.floor(Math.random() * queue.value.length)
+    } else {
+      idx = currentIndex.value + 1
+    }
+
+    if (idx >= queue.value.length) {
+      if (repeat.value === 'all') {
+        idx = 0
+      } else {
+        return null
+      }
+    }
+    currentIndex.value = idx
+    return queue.value[idx]
+  }
+
+  function prevTrack() {
+    if (queue.value.length === 0) return null
+    if (repeat.value === 'one') return queue.value[currentIndex.value]
+
+    let idx
+    if (shuffle.value) {
+      idx = Math.floor(Math.random() * queue.value.length)
+    } else {
+      idx = currentIndex.value - 1
+    }
+
+    if (idx < 0) {
+      if (repeat.value === 'all') {
+        idx = queue.value.length - 1
+      } else {
+        return null
+      }
+    }
+    currentIndex.value = idx
+    return queue.value[idx]
+  }
+
+  function toggleShuffle() {
+    shuffle.value = !shuffle.value
+  }
+
+  function cycleRepeat() {
+    const modes = ['off', 'all', 'one']
+    const i = modes.indexOf(repeat.value)
+    repeat.value = modes[(i + 1) % modes.length]
+  }
+
+  function $reset() {
+    queue.value = []
+    currentIndex.value = -1
+    shuffle.value = false
+    repeat.value = 'off'
+  }
+
+  return {
+    queue, currentIndex, shuffle, repeat, currentTrack,
+    setQueue, nextTrack, prevTrack,
+    toggleShuffle, cycleRepeat, $reset,
+  }
+})