@tanstack/optimistic/dist/cjs/transactions.cjs.map

Core optimistic updates library

{"version":3,"file":"transactions.cjs","sources":["../../src/transactions.ts"],"sourcesContent":["import { createDeferred } from \"./deferred\"\nimport type { Deferred } from \"./deferred\"\nimport type {\n  PendingMutation,\n  TransactionConfig,\n  TransactionState,\n} from \"./types\"\n\nfunction generateUUID() {\n  // Check if crypto.randomUUID is available (modern browsers and Node.js 15+)\n  if (\n    typeof crypto !== `undefined` &&\n    typeof crypto.randomUUID === `function`\n  ) {\n    return crypto.randomUUID()\n  }\n\n  // Fallback implementation for older environments\n  return `xxxxxxxx-xxxx-4xxx-yxxx-xxxxxxxxxxxx`.replace(/[xy]/g, function (c) {\n    const r = (Math.random() * 16) | 0\n    const v = c === `x` ? r : (r & 0x3) | 0x8\n    return v.toString(16)\n  })\n}\n\nconst transactions: Array<Transaction> = []\n\nexport function createTransaction(config: TransactionConfig): Transaction {\n  if (typeof config.mutationFn === `undefined`) {\n    throw `mutationFn is required when creating a transaction`\n  }\n\n  let transactionId = config.id\n  if (!transactionId) {\n    transactionId = generateUUID()\n  }\n  const newTransaction = new Transaction({ ...config, id: transactionId })\n  transactions.push(newTransaction)\n\n  return newTransaction\n}\n\nlet transactionStack: Array<Transaction> = []\n\nexport function getActiveTransaction(): Transaction | undefined {\n  if (transactionStack.length > 0) {\n    return transactionStack.slice(-1)[0]\n  } else {\n    return undefined\n  }\n}\n\nfunction registerTransaction(tx: Transaction) {\n  transactionStack.push(tx)\n}\n\nfunction unregisterTransaction(tx: Transaction) {\n  transactionStack = transactionStack.filter((t) => t.id !== tx.id)\n}\n\nexport class Transaction {\n  public id: string\n  public state: TransactionState\n  public mutationFn\n  public mutations: Array<PendingMutation<any>>\n  public isPersisted: Deferred<Transaction>\n  public autoCommit: boolean\n  public createdAt: Date\n  public metadata: Record<string, unknown>\n  public error?: {\n    message: string\n    error: Error\n  }\n\n  constructor(config: TransactionConfig) {\n    this.id = config.id!\n    this.mutationFn = config.mutationFn\n    this.state = `pending`\n    this.mutations = []\n    this.isPersisted = createDeferred()\n    this.autoCommit = config.autoCommit ?? true\n    this.createdAt = new Date()\n    this.metadata = config.metadata ?? {}\n  }\n\n  setState(newState: TransactionState) {\n    this.state = newState\n  }\n\n  mutate(callback: () => void): Transaction {\n    if (this.state !== `pending`) {\n      throw `You can no longer call .mutate() as the transaction is no longer pending`\n    }\n\n    registerTransaction(this)\n    try {\n      callback()\n    } finally {\n      unregisterTransaction(this)\n    }\n\n    if (this.autoCommit) {\n      this.commit()\n    }\n\n    return this\n  }\n\n  applyMutations(mutations: Array<PendingMutation<any>>): void {\n    for (const newMutation of mutations) {\n      const existingIndex = this.mutations.findIndex(\n        (m) => m.key === newMutation.key\n      )\n\n      if (existingIndex >= 0) {\n        // Replace existing mutation\n        this.mutations[existingIndex] = newMutation\n      } else {\n        // Insert new mutation\n        this.mutations.push(newMutation)\n      }\n    }\n  }\n\n  rollback(config?: { isSecondaryRollback?: boolean }): Transaction {\n    const isSecondaryRollback = config?.isSecondaryRollback ?? false\n    if (this.state === `completed`) {\n      throw `You can no longer call .rollback() as the transaction is already completed`\n    }\n\n    this.setState(`failed`)\n\n    // See if there's any other transactions w/ mutations on the same keys\n    // and roll them back as well.\n    if (!isSecondaryRollback) {\n      const mutationKeys = new Set()\n      this.mutations.forEach((m) => mutationKeys.add(m.key))\n      transactions.forEach(\n        (t) =>\n          t.state === `pending` &&\n          t.mutations.some((m) => mutationKeys.has(m.key)) &&\n          t.rollback({ isSecondaryRollback: true })\n      )\n    }\n\n    // Reject the promise\n    this.isPersisted.reject(this.error?.error)\n\n    this.touchCollection()\n\n    return this\n  }\n\n  // Tell collection that something has changed with the transaction\n  touchCollection(): void {\n    const hasCalled = new Set()\n    this.mutations.forEach((mutation) => {\n      if (!hasCalled.has(mutation.collection.id)) {\n        mutation.collection.transactions.setState((state) => state)\n        mutation.collection.commitPendingTransactions()\n        hasCalled.add(mutation.collection.id)\n      }\n    })\n  }\n\n  async commit(): Promise<Transaction> {\n    if (this.state !== `pending`) {\n      throw `You can no longer call .commit() as the transaction is no longer pending`\n    }\n\n    this.setState(`persisting`)\n\n    if (this.mutations.length === 0) {\n      this.setState(`completed`)\n    }\n\n    // Run mutationFn\n    try {\n      await this.mutationFn({ transaction: this })\n\n      this.setState(`completed`)\n      this.touchCollection()\n\n      this.isPersisted.resolve(this)\n    } catch (error) {\n      // Update transaction with error information\n      this.error = {\n        message: error instanceof Error ? error.message : String(error),\n        error: error instanceof Error ? error : new Error(String(error)),\n      }\n\n      // rollback the transaction\n      return this.rollback()\n    }\n\n    return this\n  }\n}\n"],"names":["createDeferred"],"mappings":";;;AAQA,SAAS,eAAe;AAEtB,MACE,OAAO,WAAW,eAClB,OAAO,OAAO,eAAe,YAC7B;AACA,WAAO,OAAO,WAAW;AAAA,EAAA;AAI3B,SAAO,uCAAuC,QAAQ,SAAS,SAAU,GAAG;AAC1E,UAAM,IAAK,KAAK,OAAO,IAAI,KAAM;AACjC,UAAM,IAAI,MAAM,MAAM,IAAK,IAAI,IAAO;AAC/B,WAAA,EAAE,SAAS,EAAE;AAAA,EAAA,CACrB;AACH;AAEA,MAAM,eAAmC,CAAC;AAEnC,SAAS,kBAAkB,QAAwC;AACpE,MAAA,OAAO,OAAO,eAAe,aAAa;AACtC,UAAA;AAAA,EAAA;AAGR,MAAI,gBAAgB,OAAO;AAC3B,MAAI,CAAC,eAAe;AAClB,oBAAgB,aAAa;AAAA,EAAA;AAEzB,QAAA,iBAAiB,IAAI,YAAY,EAAE,GAAG,QAAQ,IAAI,eAAe;AACvE,eAAa,KAAK,cAAc;AAEzB,SAAA;AACT;AAEA,IAAI,mBAAuC,CAAC;AAErC,SAAS,uBAAgD;AAC1D,MAAA,iBAAiB,SAAS,GAAG;AAC/B,WAAO,iBAAiB,MAAM,EAAE,EAAE,CAAC;AAAA,EAAA,OAC9B;AACE,WAAA;AAAA,EAAA;AAEX;AAEA,SAAS,oBAAoB,IAAiB;AAC5C,mBAAiB,KAAK,EAAE;AAC1B;AAEA,SAAS,sBAAsB,IAAiB;AAC9C,qBAAmB,iBAAiB,OAAO,CAAC,MAAM,EAAE,OAAO,GAAG,EAAE;AAClE;AAEO,MAAM,YAAY;AAAA,EAcvB,YAAY,QAA2B;AACrC,SAAK,KAAK,OAAO;AACjB,SAAK,aAAa,OAAO;AACzB,SAAK,QAAQ;AACb,SAAK,YAAY,CAAC;AAClB,SAAK,cAAcA,wBAAe;AAC7B,SAAA,aAAa,OAAO,cAAc;AAClC,SAAA,gCAAgB,KAAK;AACrB,SAAA,WAAW,OAAO,YAAY,CAAC;AAAA,EAAA;AAAA,EAGtC,SAAS,UAA4B;AACnC,SAAK,QAAQ;AAAA,EAAA;AAAA,EAGf,OAAO,UAAmC;AACpC,QAAA,KAAK,UAAU,WAAW;AACtB,YAAA;AAAA,IAAA;AAGR,wBAAoB,IAAI;AACpB,QAAA;AACO,eAAA;AAAA,IAAA,UACT;AACA,4BAAsB,IAAI;AAAA,IAAA;AAG5B,QAAI,KAAK,YAAY;AACnB,WAAK,OAAO;AAAA,IAAA;AAGP,WAAA;AAAA,EAAA;AAAA,EAGT,eAAe,WAA8C;AAC3D,eAAW,eAAe,WAAW;AAC7B,YAAA,gBAAgB,KAAK,UAAU;AAAA,QACnC,CAAC,MAAM,EAAE,QAAQ,YAAY;AAAA,MAC/B;AAEA,UAAI,iBAAiB,GAAG;AAEjB,aAAA,UAAU,aAAa,IAAI;AAAA,MAAA,OAC3B;AAEA,aAAA,UAAU,KAAK,WAAW;AAAA,MAAA;AAAA,IACjC;AAAA,EACF;AAAA,EAGF,SAAS,QAAyD;;AAC1D,UAAA,uBAAsB,iCAAQ,wBAAuB;AACvD,QAAA,KAAK,UAAU,aAAa;AACxB,YAAA;AAAA,IAAA;AAGR,SAAK,SAAS,QAAQ;AAItB,QAAI,CAAC,qBAAqB;AAClB,YAAA,mCAAmB,IAAI;AACxB,WAAA,UAAU,QAAQ,CAAC,MAAM,aAAa,IAAI,EAAE,GAAG,CAAC;AACxC,mBAAA;AAAA,QACX,CAAC,MACC,EAAE,UAAU,aACZ,EAAE,UAAU,KAAK,CAAC,MAAM,aAAa,IAAI,EAAE,GAAG,CAAC,KAC/C,EAAE,SAAS,EAAE,qBAAqB,KAAM,CAAA;AAAA,MAC5C;AAAA,IAAA;AAIF,SAAK,YAAY,QAAO,UAAK,UAAL,mBAAY,KAAK;AAEzC,SAAK,gBAAgB;AAEd,WAAA;AAAA,EAAA;AAAA;AAAA,EAIT,kBAAwB;AAChB,UAAA,gCAAgB,IAAI;AACrB,SAAA,UAAU,QAAQ,CAAC,aAAa;AACnC,UAAI,CAAC,UAAU,IAAI,SAAS,WAAW,EAAE,GAAG;AAC1C,iBAAS,WAAW,aAAa,SAAS,CAAC,UAAU,KAAK;AAC1D,iBAAS,WAAW,0BAA0B;AACpC,kBAAA,IAAI,SAAS,WAAW,EAAE;AAAA,MAAA;AAAA,IACtC,CACD;AAAA,EAAA;AAAA,EAGH,MAAM,SAA+B;AAC/B,QAAA,KAAK,UAAU,WAAW;AACtB,YAAA;AAAA,IAAA;AAGR,SAAK,SAAS,YAAY;AAEtB,QAAA,KAAK,UAAU,WAAW,GAAG;AAC/B,WAAK,SAAS,WAAW;AAAA,IAAA;AAIvB,QAAA;AACF,YAAM,KAAK,WAAW,EAAE,aAAa,MAAM;AAE3C,WAAK,SAAS,WAAW;AACzB,WAAK,gBAAgB;AAEhB,WAAA,YAAY,QAAQ,IAAI;AAAA,aACtB,OAAO;AAEd,WAAK,QAAQ;AAAA,QACX,SAAS,iBAAiB,QAAQ,MAAM,UAAU,OAAO,KAAK;AAAA,QAC9D,OAAO,iBAAiB,QAAQ,QAAQ,IAAI,MAAM,OAAO,KAAK,CAAC;AAAA,MACjE;AAGA,aAAO,KAAK,SAAS;AAAA,IAAA;AAGhB,WAAA;AAAA,EAAA;AAEX;;;;"}