refactor: enforce 800 line source limits

web/src/composables/workbenchAiMode/useWorkbenchAiComposerFiles.js

@@ -0,0 +1,55 @@
+import {
+  buildFileIdentity,
+  MAX_ATTACHMENTS,
+  mergeFilesWithLimit
+} from '../../views/scripts/travelReimbursementAttachmentModel.js'
+
+export function useWorkbenchAiComposerFiles({
+  fileInputRef,
+  focusAiModeInput,
+  isInputLocked,
+  selectedFiles,
+  toast
+}) {
+  function triggerAiModeFileUpload() {
+    if (isInputLocked()) {
+      toast('请等待费用测算完成后再继续操作。')
+      return
+    }
+    fileInputRef.value?.click()
+  }
+
+  function handleAiModeFilesChange(event) {
+    const fileMergeResult = mergeFilesWithLimit(selectedFiles.value, Array.from(event.target.files || []), MAX_ATTACHMENTS)
+    selectedFiles.value = fileMergeResult.files
+    if (fileMergeResult.overflowCount > 0) {
+      toast(`一次最多上传 ${MAX_ATTACHMENTS} 份附件，已保留前 ${MAX_ATTACHMENTS} 份。`)
+    }
+    if (fileInputRef.value) {
+      fileInputRef.value.value = ''
+    }
+    focusAiModeInput()
+  }
+
+  function removeAiModeFile(fileKey) {
+    selectedFiles.value = selectedFiles.value.filter((file) => buildFileIdentity(file) !== fileKey)
+    if (!selectedFiles.value.length && fileInputRef.value) {
+      fileInputRef.value.value = ''
+    }
+    focusAiModeInput()
+  }
+
+  function clearAiModeFiles() {
+    selectedFiles.value = []
+    if (fileInputRef.value) {
+      fileInputRef.value.value = ''
+    }
+  }
+
+  return {
+    clearAiModeFiles,
+    handleAiModeFilesChange,
+    removeAiModeFile,
+    triggerAiModeFileUpload
+  }
+}