@puregram/scenes/lib/contexts/step.js

Simple implementation of middleware-based scene management for puregram

"use strict";
Object.defineProperty(exports, "__esModule", { value: true });
exports.StepSceneContext = void 0;
const scene_types_1 = require("./scene.types");
class StepSceneContext {
    constructor(options) {
        this.stepChanged = false;
        this.context = options.context;
        this.steps = options.steps;
    }
    /** The first enter to the handler */
    get firstTime() {
        const { firstTime = true } = this.context.scene.session;
        return firstTime;
    }
    /** Returns current `stepId` */
    get stepId() {
        return this.context.scene.session.stepId || 0;
    }
    /** Sets current `stepId` */
    set stepId(stepId) {
        const { session } = this.context.scene;
        session.stepId = stepId;
        session.firstTime = true;
        this.stepChanged = true;
    }
    /** Returns current handler */
    get current() {
        return this.steps[this.stepId];
    }
    /** Reenter current step handler */
    async reenter() {
        const { current } = this;
        if (!current) {
            await this.context.scene.leave();
            return;
        }
        this.stepChanged = false;
        await current(this.context);
        if (this.context.scene.lastAction !== scene_types_1.LastAction.LEAVE && !this.stepChanged) {
            this.context.scene.session.firstTime = false;
        }
    }
    /** The `go` method goes to a specific step */
    go(stepId, { silent = false } = {}) {
        this.stepId = stepId;
        if (silent) {
            return Promise.resolve();
        }
        return this.reenter();
    }
    /** Move to the next handler */
    next(options) {
        return this.go(this.stepId + 1, options);
    }
    /** Move to the previous handler */
    previous(options) {
        return this.go(this.stepId - 1, options);
    }
}
exports.StepSceneContext = StepSceneContext;