"use strict";
Object.defineProperty(exports, "__esModule", { value: true });
exports.ParseStream = void 0;
const type_guards_1 = require("../util/type-guards");
class ParseStream {
    constructor(tokens, parseToken) {
        this.handlers = {};
        this.stopRequested = false;
        this.tokens = tokens;
        this.parseToken = parseToken;
    }
    on(name, cb) {
        this.handlers[name] = cb;
        return this;
    }
    trigger(event, arg) {
        const h = this.handlers[event];
        return h ? (h.call(this, arg), true) : false;
    }
    start() {
        this.trigger('start');
        let token;
        while (!this.stopRequested && (token = this.tokens.shift())) {
            if (this.trigger('token', token))
                continue;
            if ((0, type_guards_1.isTagToken)(token) && this.trigger(`tag:${token.name}`, token)) {
                continue;
            }
            const template = this.parseToken(token, this.tokens);
            this.trigger('template', template);
        }
        if (!this.stopRequested)
            this.trigger('end');
        return this;
    }
    stop() {
        this.stopRequested = true;
        return this;
    }
}
exports.ParseStream = ParseStream;
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