import {FileUtils} from "../FileUtils";
import {StoreComponent} from "../StoreComponent";
import * as path from "node:path";
import * as fs from "node:fs";

export class ItemStorage {
  private itemDir: string

  constructor(itemDir: string) {
    this.itemDir = itemDir;
    FileUtils.prepareDirectoryFroWriting(this.itemDir);
  }

  storeItem(storedItems: StoreComponent[]) {
    this.persistDeletedItems(storedItems);
    storedItems.forEach(item => this.storeSingleItem(item))
  }

  private persistDeletedItems(existingItems: StoreComponent[]) {
    const itemFiles = FileUtils.listFilesInDirectory(this.itemDir);
    itemFiles.forEach(itemFile => {
      const itemFileName = path.parse(path.basename(itemFile)).name
      if(existingItems.find(item => item.fileName === itemFileName) == undefined) {
        fs.unlinkSync(itemFile)
      }
    })
  }

  private storeSingleItem(item: StoreComponent) {
    const completeItemFile = path.join(this.itemDir, item.fileName + ".json");
    fs.writeFileSync(completeItemFile, item.jsonString, 'utf-8')
  }
}