"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());
    });
};
var __importDefault = (this && this.__importDefault) || function (mod) {
    return (mod && mod.__esModule) ? mod : { "default": mod };
};
Object.defineProperty(exports, "__esModule", { value: true });
exports.default = sync;
const fs_1 = __importDefault(require("fs"));
const path_1 = __importDefault(require("path"));
const os_1 = __importDefault(require("os"));
const util_1 = __importDefault(require("util"));
const crypto_1 = __importDefault(require("crypto"));
const child_process_1 = require("child_process");
const grab_dir_names_1 = __importDefault(require("./grab-dir-names"));
const grab_folders_files_string_paths_1 = require("./grab-folders-files-string-paths");
const delay_1 = __importDefault(require("./delay"));
const execPromise = util_1.default.promisify(child_process_1.exec);
const LOCK_STALE_MS = 5 * 60 * 1000;
const LOCK_RETRY_MS = 100;
function lockPathFor(dirPath) {
    const hash = crypto_1.default
        .createHash("sha1")
        .update(path_1.default.resolve(dirPath))
        .digest("hex")
        .slice(0, 16);
    return path_1.default.join(os_1.default.tmpdir(), `turbosync-${hash}.lock`);
}
function acquireLock(lockPath) {
    return __awaiter(this, void 0, void 0, function* () {
        while (true) {
            try {
                const fd = fs_1.default.openSync(lockPath, "wx");
                fs_1.default.writeFileSync(fd, String(process.pid));
                fs_1.default.closeSync(fd);
                return;
            }
            catch (error) {
                if (error.code !== "EEXIST")
                    throw error;
                try {
                    const { mtimeMs } = fs_1.default.statSync(lockPath);
                    if (Date.now() - mtimeMs > LOCK_STALE_MS) {
                        fs_1.default.unlinkSync(lockPath);
                        continue;
                    }
                }
                catch (_a) {
                    continue;
                }
                yield (0, delay_1.default)(LOCK_RETRY_MS);
            }
        }
    });
}
function acquireLocks(lockPaths) {
    return __awaiter(this, void 0, void 0, function* () {
        for (const lockPath of lockPaths) {
            yield acquireLock(lockPath);
        }
    });
}
function releaseLocks(lockPaths) {
    for (const lockPath of lockPaths) {
        try {
            fs_1.default.unlinkSync(lockPath);
        }
        catch (_a) { }
    }
}
function sync(_a) {
    return __awaiter(this, arguments, void 0, function* ({ options, dirs, dirPath, isFiles, firstRun, }) {
        var _b, _c;
        const dstDirs = dirs.filter((dr) => {
            if (typeof dr == "string")
                return dr !== dirPath;
            if (dr === null || dr === void 0 ? void 0 : dr.path)
                return dr.path !== dirPath;
            return false;
        });
        const { ignoreFileName } = (0, grab_dir_names_1.default)();
        const rsyncIgnoreFile = path_1.default.join(dirPath, ignoreFileName);
        const rsyncTrailingSlash = isFiles ? "" : "/";
        const allCommandsArr = [];
        for (let j = 0; j < dstDirs.length; j++) {
            const dstDr = dstDirs[j];
            let cmdArray = ["rsync", firstRun ? "-az" : "-azu", "--inplace"];
            if (options === null || options === void 0 ? void 0 : options.delete) {
                cmdArray.push("--delete");
            }
            if ((_b = options === null || options === void 0 ? void 0 : options.include) === null || _b === void 0 ? void 0 : _b[0]) {
                options.include.forEach((incl) => {
                    cmdArray.push(`--include='${incl}'`);
                });
            }
            if (fs_1.default.existsSync(rsyncIgnoreFile)) {
                cmdArray.push(`--exclude-from=${rsyncIgnoreFile}`);
            }
            if ((_c = options === null || options === void 0 ? void 0 : options.exclude) === null || _c === void 0 ? void 0 : _c[0]) {
                options.exclude.forEach((excl) => {
                    cmdArray.push(`--exclude='${excl}'`);
                });
            }
            if (typeof dstDr == "string") {
                if (!fs_1.default.existsSync(dstDr))
                    continue;
                if (dirPath === dstDr) {
                    console.log(`You can't sync the same paths. Please check your configuration and resolve duplicate paths`);
                    process.exit(6);
                }
                cmdArray.push(path_1.default.normalize(dirPath) + rsyncTrailingSlash, path_1.default.normalize(dstDr) + rsyncTrailingSlash);
            }
            else if (dstDr.path) {
                if (!dstDr.host && !fs_1.default.existsSync(dstDr.path))
                    continue;
                if (dirPath === dstDr.path) {
                    console.log(`You can't sync the same paths. Please check your configuration and resolve duplicate paths`);
                    process.exit(6);
                }
                if (dstDr.host && dstDr.ssh_key && dstDr.user) {
                    cmdArray.push("-e", `'ssh -i ${dstDr.ssh_key}'`);
                    cmdArray.push(path_1.default.normalize(dirPath) + rsyncTrailingSlash, `${dstDr.user}@${dstDr.host}:${dstDr.path}${rsyncTrailingSlash}`);
                }
                else {
                    cmdArray.push(path_1.default.normalize(dirPath), path_1.default.normalize(dstDr.path));
                }
            }
            allCommandsArr.push(cmdArray);
        }
        const lockPaths = [dirPath, ...dstDirs.map((dr) => (0, grab_folders_files_string_paths_1.fldFileToStr)(dr))]
            .filter((pth) => Boolean(pth))
            .map((pth) => lockPathFor(pth))
            .sort();
        yield acquireLocks(lockPaths);
        try {
            yield Promise.all(allCommandsArr.map((cmdArr) => {
                return execPromise(cmdArr.join(" "));
            }));
        }
        finally {
            releaseLocks(lockPaths);
        }
        console.log(`${dirPath} Folder Sync Complete. Exiting ...`);
    });
}