"use strict";
/*
 *  This file is part of CoCalc: Copyright © 2020 Sagemath, Inc.
 *  License: AGPLv3 s.t. "Commons Clause" – see LICENSE.md for details
 */
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 __generator = (this && this.__generator) || function (thisArg, body) {
    var _ = { label: 0, sent: function() { if (t[0] & 1) throw t[1]; return t[1]; }, trys: [], ops: [] }, f, y, t, g;
    return g = { next: verb(0), "throw": verb(1), "return": verb(2) }, typeof Symbol === "function" && (g[Symbol.iterator] = function() { return this; }), g;
    function verb(n) { return function (v) { return step([n, v]); }; }
    function step(op) {
        if (f) throw new TypeError("Generator is already executing.");
        while (_) try {
            if (f = 1, y && (t = op[0] & 2 ? y["return"] : op[0] ? y["throw"] || ((t = y["return"]) && t.call(y), 0) : y.next) && !(t = t.call(y, op[1])).done) return t;
            if (y = 0, t) op = [op[0] & 2, t.value];
            switch (op[0]) {
                case 0: case 1: t = op; break;
                case 4: _.label++; return { value: op[1], done: false };
                case 5: _.label++; y = op[1]; op = [0]; continue;
                case 7: op = _.ops.pop(); _.trys.pop(); continue;
                default:
                    if (!(t = _.trys, t = t.length > 0 && t[t.length - 1]) && (op[0] === 6 || op[0] === 2)) { _ = 0; continue; }
                    if (op[0] === 3 && (!t || (op[1] > t[0] && op[1] < t[3]))) { _.label = op[1]; break; }
                    if (op[0] === 6 && _.label < t[1]) { _.label = t[1]; t = op; break; }
                    if (t && _.label < t[2]) { _.label = t[2]; _.ops.push(op); break; }
                    if (t[2]) _.ops.pop();
                    _.trys.pop(); continue;
            }
            op = body.call(thisArg, _);
        } catch (e) { op = [6, e]; y = 0; } finally { f = t = 0; }
        if (op[0] & 5) throw op[1]; return { value: op[0] ? op[1] : void 0, done: true };
    }
};
var __values = (this && this.__values) || function(o) {
    var s = typeof Symbol === "function" && Symbol.iterator, m = s && o[s], i = 0;
    if (m) return m.call(o);
    if (o && typeof o.length === "number") return {
        next: function () {
            if (o && i >= o.length) o = void 0;
            return { value: o && o[i++], done: !o };
        }
    };
    throw new TypeError(s ? "Object is not iterable." : "Symbol.iterator is not defined.");
};
var __importDefault = (this && this.__importDefault) || function (mod) {
    return (mod && mod.__esModule) ? mod : { "default": mod };
};
Object.defineProperty(exports, "__esModule", { value: true });
var path_to_files_1 = __importDefault(require("./path-to-files"));
var fs_1 = require("fs");
var path_1 = require("path");
var lodash_1 = require("lodash");
var file_extensions_1 = require("@cocalc/frontend/file-extensions");
var util_1 = require("./util");
var MB = 1000000;
var LIMITS = {
    listing: 10000,
    ipynb: 15 * MB,
    sagews: 10 * MB,
    other: 2 * MB,
};
function getContents(project_id, path) {
    var _a;
    return __awaiter(this, void 0, void 0, function () {
        var fsPath, obj, stats, _b, listing, truncated, ext, _c;
        return __generator(this, function (_d) {
            switch (_d.label) {
                case 0:
                    fsPath = (0, path_to_files_1.default)(project_id, path);
                    obj = {};
                    return [4 /*yield*/, fs_1.promises.lstat(fsPath)];
                case 1:
                    stats = _d.sent();
                    obj.isdir = stats.isDirectory();
                    obj.mtime = stats.mtime.valueOf();
                    if (!obj.isdir) return [3 /*break*/, 3];
                    return [4 /*yield*/, getDirectoryListing(fsPath)];
                case 2:
                    _b = _d.sent(), listing = _b.listing, truncated = _b.truncated;
                    obj.listing = listing;
                    if (truncated) {
                        obj.truncated = truncated;
                    }
                    return [3 /*break*/, 7];
                case 3:
                    ext = (0, util_1.getExtension)(fsPath);
                    if (!(0, file_extensions_1.hasSpecialViewer)(ext)) return [3 /*break*/, 6];
                    if (!((_a = stats.size >= LIMITS[ext]) !== null && _a !== void 0 ? _a : LIMITS.other)) return [3 /*break*/, 4];
                    obj.truncated = "File too big to be displayed; download it instead.";
                    return [3 /*break*/, 6];
                case 4:
                    _c = obj;
                    return [4 /*yield*/, fs_1.promises.readFile(fsPath)];
                case 5:
                    _c.content = (_d.sent()).toString();
                    _d.label = 6;
                case 6:
                    obj.size = stats.size;
                    _d.label = 7;
                case 7: return [2 /*return*/, obj];
            }
        });
    });
}
exports.default = getContents;
function getDirectoryListing(path) {
    return __awaiter(this, void 0, void 0, function () {
        var listing, truncated, _a, _b, name_1, obj, stats, _c, err_1, e_1_1;
        var e_1, _d;
        return __generator(this, function (_e) {
            switch (_e.label) {
                case 0:
                    listing = [];
                    truncated = undefined;
                    _e.label = 1;
                case 1:
                    _e.trys.push([1, 13, 14, 15]);
                    return [4 /*yield*/, fs_1.promises.readdir(path)];
                case 2:
                    _a = __values.apply(void 0, [_e.sent()]), _b = _a.next();
                    _e.label = 3;
                case 3:
                    if (!!_b.done) return [3 /*break*/, 12];
                    name_1 = _b.value;
                    if (name_1.startsWith(".")) {
                        // We never grab hidden files.  This is a public share server after all.
                        return [3 /*break*/, 11];
                    }
                    obj = { name: name_1 };
                    _e.label = 4;
                case 4:
                    _e.trys.push([4, 9, , 10]);
                    return [4 /*yield*/, fs_1.promises.lstat((0, path_1.join)(path, name_1))];
                case 5:
                    stats = _e.sent();
                    if (!stats.isDirectory()) return [3 /*break*/, 7];
                    obj.isdir = true;
                    // For a directory, we define "size" to be the number of items
                    // in the directory.
                    _c = obj;
                    return [4 /*yield*/, fs_1.promises.readdir((0, path_1.join)(path, name_1))];
                case 6:
                    // For a directory, we define "size" to be the number of items
                    // in the directory.
                    _c.size = (_e.sent()).length;
                    return [3 /*break*/, 8];
                case 7:
                    obj.size = stats.size;
                    _e.label = 8;
                case 8:
                    obj.mtime = stats.mtime.valueOf();
                    return [3 /*break*/, 10];
                case 9:
                    err_1 = _e.sent();
                    obj.error = err_1;
                    return [3 /*break*/, 10];
                case 10:
                    listing.push(obj);
                    if (listing.length >= LIMITS.listing) {
                        truncated = "Too many files -- only showing ".concat(LIMITS.listing, " of them.");
                        return [3 /*break*/, 12];
                    }
                    _e.label = 11;
                case 11:
                    _b = _a.next();
                    return [3 /*break*/, 3];
                case 12: return [3 /*break*/, 15];
                case 13:
                    e_1_1 = _e.sent();
                    e_1 = { error: e_1_1 };
                    return [3 /*break*/, 15];
                case 14:
                    try {
                        if (_b && !_b.done && (_d = _a.return)) _d.call(_a);
                    }
                    finally { if (e_1) throw e_1.error; }
                    return [7 /*endfinally*/];
                case 15: return [2 /*return*/, { listing: (0, lodash_1.sortBy)(listing, ["name"]), truncated: truncated }];
            }
        });
    });
}
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