/* eslint-disable @typescript-eslint/no-inferrable-types */
import { env, Pack } from "ask-lang";
 
@event({ id: 1 })
export class FlipEvent {
    flag: bool;
 
    constructor(flag: bool) {
        this.flag = flag;
    }
}
 
@spreadLayout
@packedLayout
export class Flipper {
    flag: bool;
    constructor(flag: bool = false) {
        this.flag = flag;
    }
}
 
@contract
export class Contract {
    _data: Pack<Flipper>;
 
    constructor() {
        this._data = instantiate<Pack<Flipper>>(new Flipper(false));
    }
 
    get data(): Flipper {
        return this._data.unwrap();
    }
 
    set data(data: Flipper) {
        this._data = new Pack(data);
    }
 
    @constructor()
    default(flag: bool): void {
        this.data.flag = flag;
    }
 
    @message({ mutates: true })
    flip(): void {
        this.data.flag = !this.data.flag;
        let event = new FlipEvent(this.data.flag);
        // @ts-ignore
        env().emitEvent(event);
    }
 
    @message()
    get(): bool {
        return this.data.flag;
    }
}

yarn build flipper.ts