{"version":3,"sources":["../../src/events/event-emitter.ts"],"names":[],"mappings":"AAkBO,MAAM,YAAA,CAE0B;AAAA,EAC3B,KAAA,GAAgB,EAAA;AAAA,EAChB,aAAA,uBAMF,GAAA,EAMN;AAAA,EAEF,EAAA,CACE,OACA,OAAA,EACQ;AACR,IAAA,MAAM,EAAA,GAAK,EAAE,IAAA,CAAK,KAAA;AAClB,IAAA,MAAM,OAAO,IAAA,CAAK,aAAA,CAAc,GAAA,CAAI,KAAK,KAAK,EAAC;AAC/C,IAAA,IAAA,CAAK,IAAA,CAAK,EAAE,EAAA,EAAI,OAAA,EAAS,CAAA;AACzB,IAAA,IAAA,CAAK,aAAA,CAAc,GAAA,CAAI,KAAA,EAAO,IAAI,CAAA;AAClC,IAAA,OAAO,EAAA;AAAA,EACT;AAAA,EAEA,IAAA,CACE,OACA,OAAA,EACQ;AACR,IAAA,MAAM,EAAA,GAAK,IAAA,CAAK,EAAA,CAAG,KAAA,EAAO,CAAC,KAAA,KAAU;AACnC,MAAA,IAAA,CAAK,IAAI,EAAE,CAAA;AACX,MAAA,OAAA,CAAQ,KAAK,CAAA;AAAA,IACf,CAAC,CAAA;AAED,IAAA,OAAO,EAAA;AAAA,EACT;AAAA,EAEA,IAAI,EAAA,EAAkB;AACpB,IAAA,KAAA,MAAW,CAAC,CAAA,EAAG,IAAI,KAAK,IAAA,CAAK,aAAA,CAAc,SAAQ,EAAG;AACpD,MAAA,MAAM,IAAI,IAAA,CAAK,SAAA,CAAU,CAAC,CAAA,KAAM,CAAA,CAAE,OAAO,EAAE,CAAA;AAE3C,MAAA,IAAI,MAAM,EAAA,EAAI;AAEd,MAAA,IAAA,CAAK,MAAA,CAAO,GAAG,CAAC,CAAA;AAChB,MAAA;AAAA,IACF;AAAA,EACF;AAAA,EAEA,IAAA,CACE,OACA,KAAA,EACM;AACN,IAAA,MAAM,OAAO,IAAA,CAAK,aAAA,CAAc,GAAA,CAAI,KAAK,KAAK,EAAC;AAE/C,IAAA,KAAA,MAAW,OAAO,IAAA,EAAM;AACtB,MAAA,GAAA,CAAI,QAAQ,KAAK,CAAA;AAAA,IACnB;AAAA,EACF;AACF","file":"event-emitter.mjs","sourcesContent":["export type EventHandler<T = any> = (data: T) => void | Promise<void>;\n\nexport interface IEventEmitter<EventTypes = Record<string, any>> {\n  on<Event extends keyof EventTypes>(\n    event: Event,\n    handler: EventHandler<EventTypes[Event]>,\n  ): number;\n  once<Event extends keyof EventTypes>(\n    event: Event,\n    handler: EventHandler<EventTypes[Event]>,\n  ): number;\n  off(id: number): void;\n  emit<Event extends keyof EventTypes>(\n    event: Event,\n    value: EventTypes[Event],\n  ): void;\n}\n\nexport class EventEmitter<\n  EventTypes = Record<string, any>,\n> implements IEventEmitter<EventTypes> {\n  protected index: number = -1;\n  protected subscriptions: Map<\n    keyof EventTypes,\n    Array<{\n      readonly id: number;\n      readonly handler: EventHandler;\n    }>\n  > = new Map<\n    keyof EventTypes,\n    Array<{\n      readonly id: number;\n      readonly handler: EventHandler;\n    }>\n  >();\n\n  on<Event extends keyof EventTypes>(\n    event: Event,\n    handler: EventHandler<EventTypes[Event]>,\n  ): number {\n    const id = ++this.index;\n    const subs = this.subscriptions.get(event) || [];\n    subs.push({ id, handler });\n    this.subscriptions.set(event, subs);\n    return id;\n  }\n\n  once<Event extends keyof EventTypes>(\n    event: Event,\n    handler: EventHandler<EventTypes[Event]>,\n  ): number {\n    const id = this.on(event, (value) => {\n      this.off(id);\n      handler(value);\n    });\n\n    return id;\n  }\n\n  off(id: number): void {\n    for (const [_, subs] of this.subscriptions.entries()) {\n      const i = subs.findIndex((s) => s.id === id);\n\n      if (i === -1) continue;\n\n      subs.splice(i, 1);\n      return;\n    }\n  }\n\n  emit<Event extends keyof EventTypes>(\n    event: Event,\n    value: EventTypes[Event],\n  ): void {\n    const subs = this.subscriptions.get(event) || [];\n\n    for (const sub of subs) {\n      sub.handler(value);\n    }\n  }\n}\n"]}