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/**
* Document Cache Utility
* Stores analyzed documents in browser localStorage for dashboard statistics
*/
export interface AnalyzedDocument {
id: string
filename: string
analyzedAt: string
type: "bias-detection" | "letter-generation"
result: {
totalSentences?: number
biasedCount?: number
neutralCount?: number
success: boolean
}
sessionId?: string
}
const CACHE_KEY = "setu_analyzed_documents"
const MAX_CACHE_SIZE = 100 // Maximum number of documents to store
/**
* Get all analyzed documents from cache
*/
export function getCachedDocuments(): AnalyzedDocument[] {
try {
const cached = localStorage.getItem(CACHE_KEY)
if (!cached) return []
return JSON.parse(cached)
} catch (error) {
console.error("Error reading document cache:", error)
return []
}
}
/**
* Add a new analyzed document to cache
*/
export function addDocumentToCache(document: Omit<AnalyzedDocument, "id" | "analyzedAt">): void {
try {
const documents = getCachedDocuments()
const newDocument: AnalyzedDocument = {
...document,
id: generateDocumentId(),
analyzedAt: new Date().toISOString(),
}
// Add to beginning of array (most recent first)
documents.unshift(newDocument)
// Limit cache size
if (documents.length > MAX_CACHE_SIZE) {
documents.splice(MAX_CACHE_SIZE)
}
localStorage.setItem(CACHE_KEY, JSON.stringify(documents))
} catch (error) {
console.error("Error adding document to cache:", error)
}
}
/**
* Get statistics about cached documents
*/
export function getDocumentStats() {
const documents = getCachedDocuments()
const biasDocuments = documents.filter(d => d.type === "bias-detection")
const totalAnalyzed = biasDocuments.length
let totalInclusive = 0
let totalFlagged = 0
biasDocuments.forEach(doc => {
if (doc.result.biasedCount === 0) {
totalInclusive++
} else if (doc.result.biasedCount && doc.result.biasedCount > 0) {
totalFlagged++
}
})
const letterDocuments = documents.filter(d => d.type === "letter-generation")
const totalLetters = letterDocuments.length
return {
totalAnalyzed,
totalInclusive,
totalFlagged,
totalLetters,
allDocuments: documents,
}
}
/**
* Clear all cached documents
*/
export function clearDocumentCache(): void {
try {
localStorage.removeItem(CACHE_KEY)
} catch (error) {
console.error("Error clearing document cache:", error)
}
}
/**
* Remove a specific document from cache
*/
export function removeDocumentFromCache(documentId: string): void {
try {
const documents = getCachedDocuments()
const filtered = documents.filter(d => d.id !== documentId)
localStorage.setItem(CACHE_KEY, JSON.stringify(filtered))
} catch (error) {
console.error("Error removing document from cache:", error)
}
}
/**
* Generate a unique document ID
*/
function generateDocumentId(): string {
return `doc_${Date.now()}_${Math.random().toString(36).substr(2, 9)}`
}
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