"use strict";
var __awaiter = (this && this.__awaiter) || function (thisArg, _arguments, P, generator) {
    function adopt(value) { return value instanceof P ? value : new P(function (resolve) { resolve(value); }); }
    return new (P || (P = Promise))(function (resolve, reject) {
        function fulfilled(value) { try { step(generator.next(value)); } catch (e) { reject(e); } }
        function rejected(value) { try { step(generator["throw"](value)); } catch (e) { reject(e); } }
        function step(result) { result.done ? resolve(result.value) : adopt(result.value).then(fulfilled, rejected); }
        step((generator = generator.apply(thisArg, _arguments || [])).next());
    });
};
Object.defineProperty(exports, "__esModule", { value: true });
class SyncScheduler {
    constructor(task, debounceMs) {
        this.task = task;
        this.debounceMs = debounceMs;
        this.pending = new Map();
        this.timers = new Map();
        this.flushing = false;
    }
    schedule(dirPath) {
        const existing = this.timers.get(dirPath);
        if (existing)
            clearTimeout(existing);
        const timer = setTimeout(() => {
            this.timers.delete(dirPath);
            this.pending.set(dirPath, false);
            void this.flush();
        }, this.debounceMs);
        this.timers.set(dirPath, timer);
    }
    enqueue(dirPath, firstRun) {
        const existing = this.timers.get(dirPath);
        if (existing) {
            clearTimeout(existing);
            this.timers.delete(dirPath);
        }
        this.pending.set(dirPath, !!firstRun);
        void this.flush();
    }
    flush() {
        return __awaiter(this, void 0, void 0, function* () {
            if (this.flushing)
                return;
            this.flushing = true;
            try {
                while (this.pending.size > 0) {
                    const batch = [...this.pending.entries()];
                    this.pending.clear();
                    for (const [dirPath, firstRun] of batch) {
                        try {
                            yield this.task(dirPath, firstRun);
                        }
                        catch (error) {
                            console.log("ERROR:", error.message);
                        }
                    }
                }
            }
            finally {
                this.flushing = false;
                if (this.pending.size > 0) {
                    void this.flush();
                }
            }
        });
    }
}
exports.default = SyncScheduler;