@strapi/data-transfer/dist/utils/transaction.mjs.map

Data transfer capabilities for Strapi

{"version":3,"file":"transaction.mjs","sources":["../../src/utils/transaction.ts"],"sourcesContent":["import { EventEmitter } from 'events';\nimport { randomUUID } from 'crypto';\nimport type { Core } from '@strapi/types';\n\nimport { Transaction, TransactionCallback } from '../../types/utils';\n\nexport const createTransaction = (strapi: Core.Strapi): Transaction => {\n  const fns: { fn: TransactionCallback; uuid: string }[] = [];\n\n  let done = false;\n  let resume: null | (() => void) = null;\n\n  const e = new EventEmitter();\n  e.on('spawn', (uuid, cb) => {\n    fns.push({ fn: cb, uuid });\n    resume?.();\n  });\n\n  e.on('close', () => {\n    e.removeAllListeners('rollback');\n    e.removeAllListeners('spawn');\n\n    done = true;\n    resume?.();\n  });\n\n  strapi.db.transaction(async ({ trx, rollback }) => {\n    e.once('rollback', async () => {\n      e.removeAllListeners('close');\n      e.removeAllListeners('spawn');\n\n      try {\n        await rollback();\n        e.emit('rollback_completed');\n      } catch {\n        e.emit('rollback_failed');\n      } finally {\n        done = true;\n        resume?.();\n      }\n    });\n\n    while (!done) {\n      while (fns.length) {\n        const item = fns.shift();\n\n        if (item) {\n          const { fn, uuid } = item;\n\n          try {\n            const res = await fn(trx);\n            e.emit(uuid, { data: res });\n          } catch (error) {\n            e.emit(uuid, { error });\n          }\n        }\n      }\n      if (!done && !fns.length) {\n        // eslint-disable-next-line @typescript-eslint/no-loop-func\n        await new Promise<void>((resolve) => {\n          resume = resolve;\n        });\n      }\n    }\n  });\n\n  return {\n    async attach<T = undefined>(callback: TransactionCallback): Promise<T | undefined> {\n      const uuid = randomUUID();\n      e.emit('spawn', uuid, callback);\n      return new Promise<T | undefined>((resolve, reject) => {\n        e.on(uuid, ({ data, error }) => {\n          if (data) {\n            resolve(data);\n          }\n\n          if (error) {\n            reject(error);\n          }\n          resolve(undefined);\n        });\n      });\n    },\n\n    end() {\n      return e.emit('close');\n    },\n\n    rollback() {\n      return new Promise<boolean>((resolve) => {\n        e.emit('rollback');\n\n        e.once('rollback_failed', () => resolve(false));\n        e.once('rollback_completed', () => resolve(true));\n      });\n    },\n  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