feat: implement MakeGroupMetadata method for generating domain and file metadata

Author: piquark6046

builder/source/build-grouped.ts

@@ -1,6 +1,8 @@
 import * as Piscina from 'piscina'
 import * as Path from 'node:path'
 import * as Process from 'node:process'
+import * as Crypto from 'node:crypto'
+import * as Fs from 'node:fs'
 import PackageJson from '@npmcli/package-json'
 import { Build, type BuildOptions } from './build-core.js'
 
@@ -26,6 +28,37 @@ export class GroupedBuild extends Build {
     }
     return Result
   }
+
+  async MakeGroupMetadata() {
+    const MetadataObj: {
+      DomainMapping: Record<string, string>,
+      FileMapping: Record<string, { SHA386: string, FileName: string }>
+    } = {
+      DomainMapping: {},
+      FileMapping: {}
+    }
+
+    const FileNameList: Set<Set<string>> = this.TransformDomainSetToFileName(new Set<Set<string>>(this.FetchedDomains.get('EachDomain')))
+    const MatchingDomains: Set<Set<string>> = new Set<Set<string>>(this.FetchedDomains.get('EachDomainFull'))
+
+    for (let I = 0; I < FileNameList.size; I++) {
+      const FileName = [...[...FileNameList][I]][0]
+      const Domains = [...MatchingDomains][I]
+      const FilePath = `${this.ProjectRoot}/dist/grouped/${FileName[0]}/tinyShield-${FileName}.user.js`
+      const FileContent = await Fs.promises.readFile(FilePath)
+      const SHA386Hash = Crypto.createHash('sha384').update(FileContent).digest('hex').toUpperCase()
+
+      for (const Domain of Domains) {
+        MetadataObj.DomainMapping[Domain] = FileName
+        MetadataObj.FileMapping[FileName] = {
+          SHA386: SHA386Hash,
+          FileName: `tinyShield-${FileName}.user.js`
+        }
+      }
+    }
+    
+    await Fs.promises.writeFile(`${this.ProjectRoot}/dist/grouped/metadata.json`, JSON.stringify(MetadataObj, null, 2), 'utf-8')
+  }
 
   async Build() {
     if (!this.Options) {

builder/source/buildci.ts

@@ -17,5 +17,8 @@ const CoreBuildInstance = new Build(Options)
 await CoreBuildInstance.Init()
 await new StandardBuild(CoreBuildInstance, Options).Build()
 console.log('StandardBuild completed successfully.')
-await new GroupedBuild(CoreBuildInstance, Options).Build()
-console.log('GroupedBuild completed successfully.')
+const GroupedBuildInstance = new GroupedBuild(CoreBuildInstance, Options)
+await GroupedBuildInstance.Build()
+console.log('GroupedBuild completed successfully.')
+await GroupedBuildInstance.MakeGroupMetadata()
+console.log('Group metadata creation completed successfully.')