Initial release of Web Tools 0.0.5

src/lib/crcWorker.ts

@@ -0,0 +1,60 @@
+import { calculateCrc, calculateCrcChunks, formatCrc, type CrcParameters } from '@/lib/crc'
+
+export interface CrcWorkerBlock {
+  startAddress: number
+  data: Uint8Array
+}
+
+export interface CrcWorkerParseRequest {
+  type: 'parse'
+  id: number
+  file: File
+}
+
+export interface CrcWorkerCalculateRequest {
+  type: 'calculate'
+  id: number
+  parameters: CrcParameters
+}
+
+export type CrcWorkerRequest = CrcWorkerParseRequest | CrcWorkerCalculateRequest
+
+export interface CrcBlockResult {
+  startAddress: number
+  endAddress: number
+  length: number
+  crc: string
+}
+
+export type CrcWorkerResponse = {
+  type: 'parsed'
+  id: number
+  format: 'Intel HEX' | 'BIN'
+  totalBytes: number
+  blockCount: number
+  warnings: string[]
+} | {
+  type: 'calculated'
+  id: number
+  combinedResult: string
+  blockResults: CrcBlockResult[]
+} | {
+  type: 'error'
+  id: number
+  operation: CrcWorkerRequest['type']
+  error: string
+}
+
+export function calculateCrcReport(blocks: CrcWorkerBlock[], parameters: CrcParameters) {
+  const combinedValue = calculateCrcChunks(blocks.map((block) => block.data), parameters)
+  const combinedResult = formatCrc(combinedValue, parameters.width)
+  const blockResults = blocks.map((block) => ({
+    startAddress: block.startAddress,
+    endAddress: block.startAddress + block.data.length - 1,
+    length: block.data.length,
+    crc: blocks.length === 1
+      ? combinedResult
+      : formatCrc(calculateCrc(block.data, parameters), parameters.width),
+  }))
+  return { combinedResult, blockResults }
+}